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TB7100 base station Installation and Operation Manual MBB-00001-02 Issue 2 December 2005 Tait Contact Information Tait Radio Communications Corporate Head Office Tait Electronics Ltd P.O. Box 1645 Christchurch New Zealand For the address and telephone number of regional offices, refer to the TaitWorld website:
Website: http://www.taitworld.com Technical Support For assistance with specific technical issues, contact Technical Support:
E-mail: support@taitworld.com Website: http://support.taitworld.com To our European customers:
Tait Electronics Limited is an environmentally responsible company which supports waste minimization and material recovery. The European Unions Waste Electrical and Electronic Equipment Directive requires that this product be disposed of separately from the general waste stream when its service life is over. Please be environmentally responsible and dispose through the original supplier, your local municipal waste separate collection service, or contact Tait Electronics Limited. 2 TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Contents Preface . 7 Scope of Manual . 7 Enquiries and Comments . 7 Updates of Manual and Equipment . 7 Copyright . 7 Disclaimer . 7 Document Conventions . 8 Associated Documentation . 8 Publication Record . 9 1 Introduction . 11 1.1 Frequency Bands . 12 1.2 RF Output Power . 12 1.3 Power Supply Options . 13 1.4 Mechanical Configurations . 13 1.5 Product Codes . 14 2 Mechanical Description . 15 2.1 Tray. 16 2.2 UI Board . 16 2.3 Receiver Module . 17 2.4 Transmitter Module . 18 2.5 SI Board. 19 2.6 AC Power Supply Unit. 20 3 Functional Description . 21 3.1 Receiver Operation . 23 3.1.1 RF Hardware . 23 3.1.2 Digital Baseband Processing . 24 3.1.3 Audio Processing and Signalling . 25 3.2 Transmitter Operation . 26 3.2.1 Audio Processing and Signalling . 26 3.2.2 Frequency Synthesizer . 27 3.2.3 RF Power Amplifier . 30 3.3 User Interface Operation. 32 3.4 System Interface Operation . 35 3.4.1 Internal Power Distribution . 37 3.4.2 Serial Data . 38 3.4.3 General Purpose IO. 38 3.4.4 Receiver Audio Processing . 38 3.4.5 Tone On Idle . 38 3.4.6 Transmitter Audio Processing. 38 TB7100 Installation and Operation Manual Tait Electronics Limited May 2005 3 4 3.4.7 Opto Isolated Keying . 39 3.4.8 Relay Output . 39 3.4.9 Fan Control . 39 3.4.10 RSSI . 39 3.4.11 Receiver Gate. 39 3.4.12 Receiver Inhibit . 39 3.5 Fan Operation . 40 Installation . 41 4.1 Personal Safety . 41 4.1.1 Lethal Voltages . 41 4.1.2 Explosive Environments . 42 4.1.3 Proximity to RF Transmissions . 42 4.1.4 High Temperatures . 42 4.2 Equipment Safety . 42 4.2.1 ESD Precautions . 42 4.2.2 Antenna Load . 43 4.2.3 Equipment Grounding . 43 4.2.4 Installation and Servicing Personnel . 43 4.3 Regulatory Information . 43 4.3.1 Distress Frequencies . 43 4.3.2 FCC Compliance . 44 4.3.3 Unauthorised Modifications. 44 4.3.4 Health, Safety and Electromagnetic Compatibility in Europe. 44 4.4 Environmental Conditions . 45 4.4.1 Operating Temperature Range . 45 4.4.2 Humidity . 45 4.4.3 Dust and Dirt . 45 4.5 Grounding and Lightning Protection. 45 4.5.1 Electrical Ground . 45 4.5.2 Lightning Ground . 45 4.6 Recommended Tools . 46 4.7 Ventilation. 46 4.7.1 Cabinet and Rack Ventilation . 46 4.8 Installing the Base Station . 49 4.8.1 Unpacking the Equipment. 49 4.8.2 Identifying the Mechanical Configuration . 49 4.8.3 Power Supply Options . 50 4.8.4 Setting the AC Mains Input Voltage . 50 4.8.5 Mounting the Base Station . 51 4.8.6 Cabling . 52 4.8.7 Accessories . 52 5 Replacing Modules . 53 5.1 Removing the Base Station and Opening the Tray. 54 5.2 Replacing the UI Board . 55 5.3 Replacing the Receiver Module . 56 5.4 Replacing the Transmitter Module . 57 4 TB7100 Installation and Operation Manual Tait Electronics Limited May 2005 5.5 Replacing the SI Board . 58 5.6 Replacing the Transmitter and Receiver Fans . 59 5.7 Replacing the Fan Power Board . 60 5.8 Replacing the Temperature Sensor Board . 60 5.9 Replacing the AC Power Supply Unit, Fan and Filter Module . 61 5.10 Replacing the Speaker . 62 5.11 Final Reassembly . 63 6 Connections . 65 6.1 External Connectors . 66 6.2 Internal Connectors . 71 6.2.1 Transmitter and Receiver Connectors . 71 6.2.2 SI Board Connectors . 73 6.2.3 UI Board Connectors . 75 7 Preparation for Operation. 77 7.1 Introduction . 77 7.2 Mode of Operation. 77 7.3 Line-controlled Base . 78 7.3.1 Test Equipment Required . 78 7.3.2 Test Equipment Setup . 79 7.3.3 Link Settings . 80 7.3.4 Applying Power . 81 7.3.5 Programming . 82 7.3.6 Receiver Audio Level Adjustment . 83 7.3.7 Receiver Functional Testing . 84 7.3.8 Transmitter Audio Level Adjustment . 85 7.3.9 Transmitter Functional Testing . 86 7.4 Talk Through Repeater . 88 7.4.1 Test Equipment Required . 88 7.4.2 Test Equipment Setup . 89 7.4.3 Link Settings . 89 7.4.4 Applying Power . 90 7.4.5 Programming . 90 7.4.6 Audio Level Adjustment . 91 7.4.7 Talk Through Repeater Functional Testing . 91 7.4.8 Alternate Talk Through Repeater Configuration . 92 7.5 RF Modem . 93 7.5.1 Test Equipment Required . 93 7.5.2 Test Equipment Setup . 94 7.5.3 Link Settings . 94 7.5.4 Applying Power . 95 7.5.5 Programming . 96 7.5.6 Audio Level Adjustment . 96 7.5.7 Programming for FFSK Operation . 96 7.5.8 Programming for THSD Operation . 98 7.5.9 Verification . 100 TB7100 Installation and Operation Manual Tait Electronics Limited May 2005 5 7.6 Data Repeater . 101 7.6.1 Link Settings. 102 7.6.2 Applying Power . 103 7.6.3 Programming . 103 7.6.4 Audio Level Adjustment . 103 7.6.5 Data Repeater Functional Testing . 104 7.7 TaitNet Trunking . 104 7.8 Programmable Features. 105 7.8.1 Connecting to the PC . 105 7.8.2 TB7100 Programming Application . 105 7.8.3 Mandatory Settings . 107 7.8.4 User-defined Settings . 108 7.8.5 Recommended Settings. 112 7.8.6 Function Keys. 113 7.9 Additional Settings . 115 7.10 Adding Subaudible Signalling . 115 7.10.1 Enabling Subaudible Signalling . 115 7.10.2 Testing Subaudible Signalling . 116 7.10.3 Multiple Subaudible Tones . 117 7.11 Soft Off (Tx Tail Time) . 118 7.11.1 Link Settings. 118 7.12 Tone On Idle (TOI). 118 7.12.1 Link Settings. 119 7.13 Fan Operation . 120 7.13.1 Link Settings. 120 7.14 Channel ID . 122 7.14.1 Link Settings. 122 7.15 Relay Polarity . 123 7.15.1 Link Settings. 123 7.16 Channel Increment and Decrement by Function Keys . 123 7.17 Carrier Wave Identification (CWID). 124 7.17.1 Station ID. 124 7.17.2 Station ID 2/Message . 124 7.17.3 Tone Frequency . 124 7.17.4 ID Repeat Time . 124 7.17.5 Speed (Words per Minute) . 124 7.17.6 Wait Period after Loss of COR/COS/CTCSS Input Before IDing . 124 7.17.7 Transmit Key-Up Delay . 124 7.17.8 Transmit Time Out Time . 125 7.17.9 Transmit PTT Drop Out Time . 125 7.17.10Output Control . 125 8 Maintenance Guide . 127 Glossary . 129 Directive 1999/5/EC Declaration of Conformity . 141 6 TB7100 Installation and Operation Manual Tait Electronics Limited May 2005 Preface Scope of Manual Welcome to the TB7100 Installation and Operation Manual. This manual provides information on installing and operating the TB7100 base station. Also included in this manual are a high-level circuit description, a functional description and a maintenance guide. Enquiries and Comments If you have any enquiries regarding this manual, or any comments, suggestions and notifications of errors, please contact Technical Support
(refer to Tait Contact Information on page 2). Updates of Manual and Equipment In the interests of improving the performance, reliability or servicing of the equipment, Tait Electronics Limited reserves the right to update the equipment or this manual or both without prior notice. Copyright Disclaimer All information contained in this manual is the property of Tait Electronics Limited. All rights are reserved. This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, stored, or reduced to any electronic medium or machine-readable form, without prior written permission from Tait Electronics Limited. There are no warranties extended or granted by this manual. Tait Electronics Limited accepts no responsibility for damage arising from use of the information contained in the manual or of the equipment and software it describes. It is the responsibility of the user to ensure that use of such information, equipment and software complies with the laws, rules and regulations of the applicable jurisdictions. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7 Document Conventions File > Open means click File on the menu bar, then click Open on the list of commands that pops up. Channel Setup > Channels > Detailed means in the navigation pane find the Channel Setup group, and select Channels from it, on the Channels page select the Detailed tab. Within this manual, four types of alerts are given to the reader: Warning, Caution, Important and Note. The following paragraphs illustrate each type of alert and its associated symbol. Warning!! This alert is used when there is a potential risk of death or serious injury. Caution This alert is used when there is a risk of minor or moderate injury to people. Important This alert is used to warn about the risk of equipment dam-
age or malfunction. Note This alert is used to highlight information that is required to ensure procedures are performed correctly. Associated Documentation The following associated documentation is available for this product:
MBB-00002-xx TB7100 Specifications Manual MBB-00003-xx TB7100 Installation Guide MBB-00005-xx TB7100 Service Manual MBA-00013-xx TBA0STU/TBA0STP Calibration and Test Unit Operation Manual The characters xx represent the issue number of the documentation. All available documentation is provided on the CD (406-00047-xx) supplied with the base station. Updates may also be published on the Tait support website. Technical notes are published from time to time to describe applications for Tait products, to provide technical details not included in manuals, and to offer solutions for any problems that arise. 8 TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Publication Record Issue Publication Date Description 1 2 May 2005 First release December 2005 Internal AC power supply, A4 and D1 bands added. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 9 10 TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 1 Introduction Figure 1.1 TB7100 base stations Configuration with provision for internal AC power supply*
Configuration without provision for internal AC power supply*
*cover removed The TB7100 is a software and hardware link-configured base station which is designed for operation in a large variety of standard frequency ranges. It makes extensive use of digital and DSP technology. Many operating parameters such as channel spacing, audio bandwidth and signalling are controlled by software. This manual includes the information required for installing and operating the base station. This section describes the different options available for:
frequency bands RF output power power supply mechanical configurations product codes For specifications, refer to the specifications manual or the area on the TaitWorld website reserved for TB7100 products. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Introduction 11 1.1 Frequency Bands The base station is available in the following frequency bands:
66 to 88MHz (A4) 136 to 174MHz (B1) 216 to 266 MHz (D1) 400 to 470MHz (H5) 450 to 530MHz (H6) 450 to 520MHz (H7) The RF band of the base station is implemented by the frequency band of the transmitter and receiver modules. 1.2 RF Output Power The base station is available with 25W and 50W/40W RF output power. The RF output power options are implemented by different transmitter and receiver modules. The 25W base station is available in the following frequency bands:
A4 B1 D1 H5 H6 The 50W/40W base station is available in the following frequency bands:
B1 (50W) H5 (40W) H7 (40W) 12 Introduction TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 1.3 Power Supply Options The base station is available with or without an internal AC power supply. All base stations have an external DC input power connector which is used as main power supply when no internal AC power supply is fitted. When the internal AC power supply is fitted, the DC input can be used as a DC backup power option. In case of AC mains failure the base station will automatically and seamlessly switch to DC power input. If no internal AC power supply is fitted, an external Tait T809-10-87xx power supply can be used to supply the DC voltage required. Warning!! The internal AC power supply unit contains voltages that may be lethal. Refer to the ratings label on the rear of the base station. The internal AC power supply contains no user-servicable parts. Important Wrong mains voltage! Before connecting to the AC power connector, ensure that the internal 115V/230V voltage mains selector switch is set to the correct mains voltage. 1.4 Mechanical Configurations The base station is available in two different mechanical configurations with or without provision for an internal AC power supply unit. The mechanical configuration with provision for an internal AC power supply has the following distinguishing features:
larger air intake on the right-hand side of the front panel provision for AC connector on the left-hand side of the rear panel (refer to Figure 1.1 on page 11) ground point on the right-hand side of the rear panel rather than on the left-hand side different SI board and internal cables. The mechanical configuration without provision for an internal AC power supply unit cannot be upgraded with an internal AC power supply unit. The product codes of the base station (see below) do not distinguish between the mechanical configurations. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Introduction 13 1.5 Product Codes This section describes the product codes used to identify products of the TB7100 base station product line. The product codes of the TB7100 base station product line has the format:
TBBaabb-cde-ff where:
aa identifies the frequency band of the receiver:
A4=66 to 88MHz, B1=136 to 174MHz, D1=216 to 266 MHz, H5=400 to 470MHz, H6=450 to 530MHz, H7=450 to 520MHz bb identifies the frequency band of the transmitter:
A4=66 to 88MHz, B1=136 to 174MHz, D1=216 to 266 MHz, H5=400 to 470MHz, H6=450 to 530MHz, H7=450 to 520MHz c identifies the RF output power and digital architecture:
A=25W, level-1 digital architecture B=35W to 50W, level-1 digital architecture C=25W, level-2 digital architecture D=35W to 50W, level-2 digital architecture E=25W, level-3 digital architecture F=35W to 50W, level-3 digital architecture d identifies the power supply option:
0=DC only 1=internal AC power supply unit, factory preset to 115VAC 2=internal AC power supply unit, factory preset to 230VAC e identifies the AC power cable:
1 = Australia/New Zealand 2 = United Kingdom 3 = Europe 4 = USA ff identifies base station options:
00=no options 14 Introduction TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 2 Mechanical Description Overview The base station consists of the following main modules:
tray b UI board (user interface) d receiver module h transmitter module i SI board (system interface) 1) internal AC power supply unit 1@ (if fitted). Figure 2.1 Parts of the base station (configuration with internal AC power supply unit shown) f g h e d i j c b 1#
1@
1!
1) All modules and boards are mounted from above into the 1U tray b. The modules are secured by screws or clips into standoffs on the tray chassis, and are easily removed for replacement. The base station includes two cooling fans f and a fan duct e in front of the receiver and transmitter modules, a speaker c mounted behind the front panel, a fan power board g mounted on the fan duct, and a temperature sensor board j mounted on the heatsink of the transmitter module i. If the internal AC power supply unit 1@ is fitted, the base station includes an additional fan 1# and an AC filter module 1!. The modules and components are interconnected by looms and cables. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Mechanical Description 15 2.1 Tray The 1U tray consists of a mild steel folded chassis and a flat cover (not shown) which is fastened to the chassis with 15 Torx T10 screws. The tray can be fitted into a standard 19 inch rack or cabinet using the two rack mounting brackets. The front panel has holes to accommodate the controls and the microphone/programming connector of the UI board. The rear panel has holes to accommodate the connectors and the fuse holder of the SI board, the antenna connectors, and a ground terminal. For more information on the connections, refer to Connections on page 65. 2.2 UI Board The UI board is mounted behind the front panel with three Torx T10 screws c and two spring clips D. The UI board is connected to the transmitter and receiver modules via the two Micro-MaTch connectors e and the two UI cables (not shown). The UI board also has a speaker connector b. A volume knob is fitted to the shaft of the volume-control potentiometer. Figure 2.2 UI board b Cables not shown. c d e 16 Mechanical Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 2.3 Receiver Module The receiver module is mounted in the front left of the tray with five Torx T10 screws g. The receiver module is a printed circuit board in SMT design with components on the top and bottom sides. A digital board is reflow-soldered to the receiver. Most components are shielded by metal cans. There are different boards for each frequency band and each RF output power configuration. The RF b, DC power c, auxiliary d, and user interface f connectors are located on the bottom side of the board. The internal options connector e and a factory connector (not shown) for factory use are located on the top side of the board. For compliance reasons, there are different variants of the receiver module for use in the 25W and 50W/40W base stations. The 25W version has a white DC power connector C and the 50W/40W version has a black DC power connector. For more information on the connectors, refer to Connections on page 65. Figure 2.3 Receiver module b c d g e g g f TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Mechanical Description 17 2.4 Transmitter Module The transmitter module consisting of a transmitter board f mounted on a purpose-designed heatsink 1) is mounted in the left rear of the tray with four Torx T10 screws (not shown). The transmitter board is a printed circuit board in SMT design with components on the top and bottom sides. A digital board is reflow-soldered to the board. Most components are shielded by metal cans. There are different boards for each frequency band and each RF output power configuration. The RF b, DC power c, auxiliary d, and user interface f connectors are located on the bottom side of the board. The internal options connector e and a factory connector (not shown) for factory use are located on the top side of the board. The 50W/40W version has a black DC power connector C and the 25W version has a white DC power connector. For more information on the connectors, refer to Connections on page 65. The board f is mounted to the heatsink 1) with seven Torx T10 screws f and g. An L-shaped gap pad i and (with the 50W/40W version) a rectangular gap pad j are fitted between the board f and the heatsink 1) to improve heat transfer. Figure 2.4 Transmitter module g f h e D c 1) g b i j 18 Mechanical Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 2.5 SI Board The SI board is mounted in the rear right of the tray with two Torx T10 screws 1), one Pozidriv screw j, and two spring clips 1!. The SI board has the following external connectors:
13.8V DC power connector (labelled 12V DC) b system connector (labelled SYSTEM) c serial data connector (labelled IOIOI) D. The SI board has the following internal connectors:
two system interface connectors e (to transmitter and receiver) one DC input connector h, if fitted (from internal AC power supply) one DC output connector i (to transmitter and receiver) fan control connector f (to fan power board on fan duct) temperature control connector g (to temperature sensor on transmitter heatsink). For more information on the connectors, refer to Connections on page 65. Figure 2.5 SI board b c d 1) j 1) i h g f 1!
e 1!
TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Mechanical Description 19 2.6 AC Power Supply Unit The base station may be fitted with an internal AC power supply unit f, an AC filter module d, and an additional fan g. The AC filter module has a standard AC connector that fits into a provision on the rear of the tray. The AC filter module slides into securing tabs on the tray floor and is held in place by the AC power supply unit. Note Mechanical configurations without the provision for a standard AC connector cannot be upgraded with the internal AC power supply unit. The AC power supply unit is held in place by two screws e. The fan is attached to the AC power supply unit by two screws h. The AC power supply unit is connected to the AC filter module via a cable connector (not shown). The DC output of the AC power supply unit is connected to the SI board b. The AC power supply unit also has a cable to provide a mains failure signal to the SI board c. In case of a mains failure, this signal will cause the power circuitry on the SI board to switch to DC external input. Figure 2.6 AC power supply unit, filter module and fan b c h g e f e d 20 Mechanical Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 3 Functional Description This section describes some principles of the base station operation. Figure 3.1 shows the high-level block diagram of the base station. Figure 3.1 Base station high-level block diagram Ground Point Tx/Ant Connector Rx Connector DC Input Connector System Connector Fuse Serial Data Connector AC Input Connector Transmitter Module RF Temperature Sensor Internal power Transmitter/SI RF Receiver Module Internal power Receiver/SI Fan Power Board Fan Fan Internal power UI/Receiver UI/Transmitter Prog/Mic Connector r e t l i F t u p n I C A e l u d o M SI Board Internal power l a n g i s l i a f s n a M i AC Power Supply Unit 115V/230V Selector Switch UI Board Speaker Fan TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 21 The block diagram illustrates the main inputs and outputs for power, RF and control signals, as well as the interconnection between modules:
program data and audio from the PROG/MIC socket on the UI board to and from the transmitter and receiver modules audio and signalling from the SYSTEM connector to and from the transmitter and receiver modules RS-232 data from the serial data connector (IOIOI) to and from the transmitter and receiver modules fan power and control from the SI board power distribution from the AC and DC power input connectors to the transmitter and receiver modules, and from the receiver module to the UI board. The circuitry of the individual modules that make up the base station is described in more detail in the following sections. Frequency Bands and Sub-bands The circuitry of the transmitter and receiver modules is similar for all frequency bands and is therefore covered by a single description in this manual. Where the circuitry differs between bands, separate descriptions are provided for each frequency band. For more information on frequency bands, refer to the specifications manual. RS-232 Signals Fan Signals External data communications all occur directly between the connected computer (or other electrical equipment) and the transmitter and receiver modules over the RS-232 serial lines. The power and ground signals for the fans are routed from the SI board to the fans behind the front panel. These signals are electrically isolated from all other system signals to ensure fan noise is not transferred to other sensitive system components. If there is a fault in the fan circuitry, the transmitter module is protected from overheating by its internal foldback circuitry. Speaker Signal Received audio is sent from the receiver module to the UI board. The volume is controlled by the volume potentiometer on the UI board. The audio signal is routed through the UI board to the speaker for monitoring purposes. Power and Ground The SI board provides power to the transmitter and receiver modules. The receiver modules provides power to the UI board. 22 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 3.1 Receiver Operation Parts of Receiver Board The main circuit parts of the receiver modules are:
receiver frequency synthesizer CODEC (coder-decoder) and audio circuitry power supply interface circuitry Software plays a prominent role in the functioning of the radio. When describing the operation of the radio the software must be included with the above. This is considered further below. These functional parts are described in detail below. Figure 3.2 Receiver high-level block diagram IF:
UHF: 45.1 MHz VHF: 21.4 MHz ANT LPF Front end 1st IF Quad Demod RX AGC Digital down-
converter Phase locked to TCXO 2nd IF:
64 kHz Second LO UHF: 90.328 MHz VHF: 42.928 MHz VCO RSSI Mag. Channel LPF Channel LPF FM Demod Audio filtering De-
Optional emphasis processing System Interface or User Interface Data and signalling decoders Side tones CUSTOM-
LOGIC BLOCK Squelch DSP BLOCK PLL Loop filter Triple-point Equalisation HARDWARE BLOCK VCXO TCXO:
13.000 MHz Loop filter KEY Frequency control Analogue-to-digital conversion Digital-to-analogue conversion NOTES
(1) Noise blanker not shown 3.1.1 RF Hardware Front End Circuitry and First IF The front-end hardware amplifies and image filters the received RF spectrum, then down-converts the desired channel frequency to a first intermediate frequency IF1 of 45.1MHz (UHF) or 21.4MHz (VHF) where coarse channel filtering is performed. The first LO (local oscillator) signal is obtained from the frequency synthesizer and is injected on the low side of the desired channel frequency for all bands except A4. When receiving the modulation to the frequency synthesizer is muted. The output of the first IF
(intermediate frequency) stage is then down-converted using an image-
reject mixer to a low IF of 64kHz. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 23 Quadrature Demodulator Automatic Gain Control The LO for the image-reject mixer (quadrature demodulator) is synthesized and uses the TCXO (temperature-compensated crystal oscillator) as a reference. This ensures good centring of the IF filters and more consistent group-delay performance. The quadrature demodulator device has an internal frequency division of 2 so the second LO operates at 2 x (IF1 + 64kHz). The quadrature output from this mixer is fed to a pair of ADCs (analog-to-digital converters) with high dynamic range where it is oversampled at 256kHz and fed to the custom logic device. The AGC (automatic gain control) is used to limit the maximum signal level applied to the image-reject mixer and ADCs in order to meet the requirements for intermodulation and selectivity performance. Hardware gain control is performed by a variable-gain amplifier within the quadrature demodulator device driven by a 10-bit DAC (digital-to-analog converter). Information about the signal level is obtained from the IQ (in-phase and quadrature) data output stream from the ADCs. The control loop is completed within custom logic. The AGC will begin to reduce gain when the combined signal power of the wanted signal and first adjacent channels is greater than about 70dBm. In the presence of a strong adjacent-channel signal it is therefore possible that the AGC may start acting when the wanted signal is well below 70dBm. 3.1.2 Digital Baseband Processing Custom Logic The remainder of the receiver processing up to demodulation is performed by custom logic. The digitised quadrature signal from the RF hardware is digitally down-converted to a zero IF, and channel filtering is performed at base-band. Different filter shapes are possible to accommodate the various channel spacings and data requirements. These filters provide the bulk of adjacent channel selectivity for narrow-band operation. The filters have linear phase response so that good group-delay performance for data is achieved. The filters also decimate the sample rate down to 48kHz. Custom logic also performs demodulation, which is multiplexed along with AGC and amplitude data, and fed via a single synchronous serial port to the DSP. The stream is demultiplexed and the demodulation data used as an input for further audio processing. Noise Squelch The noise squelch process resides in the DSP. The noise content above and adjacent to the voice band is measured and compared with a preset threshold. When a wanted signal is present, out-of-band noise content is reduced and, if below the preset threshold, is indicated as a valid wanted signal. Received Signal Strength Indication Received signal strength is measured by a process resident in the DSP. This process obtains its input from the demodulator (value of RF signal magnitude) and from the AGC (value of present gain). With these two inputs and a calibration factor, the RF signal strength at the antenna can be accurately calculated. 24 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Calibration The following items within the receiver path are calibrated in the Factory:
front-end tuning AGC noise squelch RSSI (received signal strength indication) Information on the calibration of these items is given in the on-line help facility of the calibration application. 3.1.3 Audio Processing and Signalling Audio Processing Raw demodulated data from the receiver is processed within the DSP. The sample rate at this point is 48kHz with signal bandwidth limited only by the IF filtering. Scaling (dependent on the bandwidth of the RF channel) is then applied to normalise the signal level for the remaining audio processing. The sample rate is decimated to 8kHz and bandpass audio filtering (0.3 to 3kHz) is applied. The base station takes the audio from the receiver mode at Tap R4 by default; this point has no de-emphasis. This tap point can be changed if required, for example, for trunking applications. Data and Signalling Decoders The data and signalling decoders obtain their signals from various points within the audio processing chain. The point used depends on the bandwidth of the decoders and whether de-emphasis is required. Several decoders may be active simultaneously. Side Tones CODEC Side tones are summed in at the end of the audio-processing chain. These are tones that provide some form of alert or give the user confidence an action has been performed. The confidence tones may be generated in the receiver. The side-tone level is a fixed proportion (in the order of 10dB) relative to full scale in the receive path. By default, all audible indicators are turned off. The combined audio and side-tone signal is converted to analog form by a 16-bit DAC with integral anti-alias filtering. This is followed by a programmable-gain amplifier with a range of 45dB in 1.5dB steps. The amplifier performs muting. The DAC is part of the same CODEC device (AD6521). Output to Speakers The output of the CODEC is fed to an audio power amplifier and to the UI board via a buffer amplifier. The output configuration of the audio power amplifier is balanced and drives an internal speaker. The power delivered to the speaker is limited by its impedance. The speaker has 16 impedance. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 25 3.2 Transmitter Operation Parts of Transmitter Board The main circuit parts of the transmitter board are:
transmitter frequency synthesizer CODEC (coder-decoder) and audio circuitry power supply interface circuitry Software plays a prominent role in the functioning of the board. When describing the operation of the radio the software must be included with the above. This is considered further below. These functional parts are described in detail below. Figure 3.3 Transmitter high-level block diagram ANT LPF HARDWARE BLOCK VCO Drv
/Ex Dir. Coup. Fin Bias Pwr Crtl CUSTOM LOGIC BLOCK DSP BLOCK HARDWARE BLOCK Tap point T8 SYSTEM connector PLL Loop filter Triple-point Equalisation Audio filtering Pre-
Optional emphasis processing ALC Mic PGA PROG/MIC connector VCXO Data and signalling encoders Frequency control TCXO:
13.000 MHz Loop filter KEY Ramp control Analog-to-digital conversion Digital-to-analog conversion 3.2.1 Audio Processing and Signalling Microphone Input The input to the transmitter path begins at either the SI board or the PROG/MIC connector of the UI board. Only electret-type microphones are supported. The audio input is then applied to tap point T8 on the transmitter board (the tap point is user-selectable). Analog Processing of Microphone Signal The CODEC (AD6521) performs microphone selection and amplification. The microphone amplifier consists of an amplifier with a fixed gain of 16dB followed by a programmable-gain amplifier with 0dB to 22dB gain. The amplified microphone signal is converted to a digital stream by a 16-bit ADC with integral anti-alias filtering (0.1 to 3.2kHz). The digital stream is transported to the DSP for further audio processing. 26 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Automatic Level Control DSP Audio Processing The ALC (automatic level control) follows, and is used to effectively increase dynamic range by boosting the gain of the microphone pre-amplifier under quiet conditions and reducing the gain under noisy acoustic conditions. The ALC function resides in the DSP and controls the microphone programmable-gain amplifier in the CODEC. The ALC has a fast-attack
(about 10ms) and slow-decay (up to 2s) characteristic. This characteristic ensures that the peak signal level is regulated near full scale to maximise dynamic range. The output of the automatic level control provides the input to the DSP audio-processing chain at a sample rate of 8kHz. Optional processing such as encryption or companding is done first if applicable. Pre-emphasis, if required, is then applied. The pre-emphasised signal is hard limited to prevent over deviation, and filtered to remove high-frequency components. The sample rate is then interpolated up to 48kHz and scaled to be suitable for the frequency synthesizer. Data and Signalling Encoders The data and signalling encoders inject their signals into various points within the audio-processing chain. The injection point depends on the bandwidth of the encoders and whether pre-emphasis is required. 3.2.2 Frequency Synthesizer Main Parts of Synthesizer The frequency synthesizer consists of two main parts:
FCL (frequency control loop) RF PLL (phase-locked loop) The FCL and RF PLL are described briefly below. Note that patents are pending for several aspects of the synthesizer design. Frequency Control Loop The FCL consists of the following:
TCXO mixer loop filter VCXO (voltage-controlled crystal oscillator) frequency control block The FCL provides the reference frequency for the RF PLL. It generates a high-stability reference frequency that can be both modulated and offset in fine resolution steps. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 27 RF PLL The RF PLL consists of the following:
RF PLL device loop filter VCO (voltage-controlled oscillator) VCO output switch The RF PLL has fast-locking capability but coarse frequency resolution. The above combination of control loops creates improved frequency generation and acquisition capabilities. Operation of Control Loop The RF PLL is a conventional integer-N design with frequency resolution of 25kHz. In transmit mode the loop locks to the transmit frequency. Initially, the VCO generates an unregulated frequency in the required range. This is fed to the PLL device (ADF4111) and divided down by a programmed ratio to approximately 25kHz. The reference frequency input from the FCL is also divided down to approximately 25kHz. The phase of the two signals is compared and the error translated into a DC voltage by a programmable charge pump and dual-bandwidth loop filter. This DC signal is used to control the VCO frequency and reduce the initial error. The loop eventually settles to a point that minimises the phase error between divided-
down reference and VCO frequencies. The net result is that the loop locks to a programmed multiple of the reference frequency. The FCL generates an output of 13.0120.004MHz. Initially a VCXO produces a quasi-regulated frequency in the required range. The VCXO output is fed to a mixer where it is mixed with the 13.000MHz TCXO frequency. The mixer, after low-pass filtering to remove unwanted products, produces a nominal frequency of 12kHz. This is converted to digital form and transported to the frequency-control block in custom logic. The frequency-control block compares the mixer output frequency with a reference generated by the digital clock and creates a DC error signal. A programmed offset is also added. This error signal is converted to analog form and used to control the VCXO frequency and reduce the initial error. Once settled, the loop locks to the TCXO frequency with a programmed offset frequency. The FCL output therefore acquires the TCXOs frequency stability. The full bandwidth modulation signal is obtained from the DSP in digital form at a sample rate of 48kHz. In traditional dual-point modulation systems the modulation is applied, in analog form, to both the frequency reference and the VCO in the RF PLL, combining to produce a flat modulation response down to DC. Reference modulation is usually applied directly to the TCXO. Modulation 28 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Frequency Generation In the system employed in the transmitter board, the frequency reference is generated by the FCL, which itself requires dual-point modulation injection to allow modulation down to DC. With another modulation point required in the RF PLL, this system therefore requires triple-point modulation. The modulation signals applied to the FCL are in digital form, whereas for the RF PLL (VCO) the modulation signal is applied in analog form. The modulation cross-over points occur at approximately 30 and 300Hz as determined by the closed loop bandwidths of the FCL and RF PLL respectively. The RF PLL has a frequency resolution of 25kHz. Higher resolution cannot be achieved owing to acquisition-time requirements and so for any given frequency the error could be as high as 12.5kHz. This error is corrected by altering the reference frequency to the RF PLL. The FCL supplies the reference frequency and is able to adjust it up to 300ppm with better than 0.1ppm resolution (equivalent to better than 50Hz resolution at the RF frequency). Fast Frequency Settling Both the FCL and RF PLL employ frequency-acquisition speed-up techniques to achieve fast frequency settling. The frequency-acquisition process of the FCL and RF PLL is able to occur concurrently with minimal loop interaction owing to the very large difference in frequency step size between the loops. Frequency Acquisition of RF PLL Frequency Acquisition of FCL In the RF PLL the loop bandwidth is initially set high by increasing the charge pump current and reducing time constants in the loop filter. As a result settling to within 1kHz of the final value occurs in under 4ms. In order to meet noise performance requirements the loop parameters are then switched to reduce the loop bandwidth. There is a small frequency kick as the loop bandwidth is reduced. Total settling time is under 4.5ms. The FCL utilises self-calibration techniques that enable it to rapidly settle close to the final value while the loop is open. The loop is then closed and settling to the final value occurs with an associated reduction in noise. The total settling time is typically less than 4 ms. Calibration The following items are calibrated in the frequency synthesizer:
nominal frequency KVCO KVCXO VCO deviation Calibration of the nominal frequency is achieved by adding a fixed offset to the FCL nominal frequency; the TCXO frequency itself is not adjusted. The items KVCO and KVCXO are the control sensitivities of the RF VCO
(in MHz/V) and VCXO (in kHz/V) respectively. The latter has temperature compensation. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 29 3.2.3 RF Power Amplifier RF Power Amplifier and Switching
(50W/40W Version) The RF power amplifier and exciter of the 50W/40W radio is a five-stage line-up with approximately 40dB of power gain. The output of the frequency synthesizer is first buffered to reduce kick during power ramping. The buffer output goes to a discrete exciter that produces approximately 300 to 400mW output. This is followed by an LDMOS driver producing up to 8W output that is power-controlled. The final stage consists of two parallel LDMOS devices producing enough power to provide 40 to 50W at the RF connector. RF Power Amplifier and Switching
(25W Version) The RF power amplifier of the 25W version is a four-stage line-up with approximately 37dB of power gain. The output of the frequency synthesizer is first buffered to reduce kick during power ramping. The buffer output goes to a broad-band exciter IC that produces approximately 200mW output. This is followed by an LDMOS driver producing up to 2W output that is power-controlled. The final stage consists of two parallel LDMOS devices producing enough power to provide 25W at the RF connector. Output of RF Power Amplifier The output of the RF PA passes through a dual-directional coupler, used for power control and monitoring. Finally, the output is low-pass-filtered to bring harmonic levels within specification. Power Control The steady-state power output of the transmitter is regulated using a hardware control loop. The forward power output from the RF PA is sensed by the directional coupler and fed back to the power control loop. The PA output power is controlled by varying the driver gate bias voltage that has a calibrated maximum limit to prevent overdrive. The power control signal is supplied by a 13-bit DAC driven by custom logic. Ramping Power ramp-up consists of two stages:
bias power ramping The timing between these two stages is critical to achieving the correct overall wave shape in order to meet the specification for transient ACP
(adjacent channel power). A typical ramping waveform is shown in Figure 3.4. 30 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Bias Ramp-up Power Ramp-up Figure 3.4 Typical ramping waveforms Power Bias ramp Power ramp Power ramp Bias ramp High power Low power Time The steady-state final-stage bias level is supplied by an 8-bit DAC programmed prior to ramp-up but held to zero by a switch on the DAC output under the control of a TX INHIBIT signal. Bias ramp-up begins upon release by the TX INHIBIT signal with the ramping shape being determined by a low-pass filter. Owing to power leakage through the PA chain, ramping the bias takes the PA output power from less than 20dBm for the 50W/40W version or 10dBm for the 25W version to approximately 25dB below steady-state power. The power ramp signal is supplied by a 13-bit DAC that is controlled by custom logic. The ramp is generated using a look-up table in custom logic memory that is played back at the correct rate to the DAC to produce the desired waveform. The ramp-up and ramp-down waveforms are produced by playing back the look-up table in forward and reverse order respectively. For a given power level the look-up table values are scaled by a steady-state power constant so that the ramp waveform shape remains the same for all power levels. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 31 3.3 User Interface Operation This section describes the programming/microphone connector and the controls of the user interface, and the function of the UI board. Figure 3.5 shows the controls and indicators of the user interface. Figure 3.5 User interface status LEDs function keys and LEDs volume control programming/
microphone connector Tx/Rx switch 2-digit LCD display internal speaker Programming/
Microphone Connector TX/RX Switch The PROG/MIC connector can be used to connect a handset or a programming cable. The TX/RX switch changes the LCD display to show either the transmitter or the receiver channel. The TX/RX switch also determines which board will be programmed by the programming or calibration applications. The programming application is a program on a PC that is connected to the base station via the PROG/MIC connector. The programming application enables the user to program the base station with the required channels and subaudible signalling settings. The transmitter and receiver modules are programmed individually according to the setting of the TX/RX switch. The calibration application is a program on a PC that is connected to the base station via the PROG/MIC connector. The transmitter and receiver modules are designed to be totally electronically tuned. No physical tuning is required, as all tuning is done by electronic trimming. The calibration application can assist in the tuning of:
AD6521 CODEC voltage reference TCXO frequency receiver front end transmitter driver and final gate bias limit transmitter power control deviation and squelch. 32 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Function Keys Pressing the function keys will activate the functions assigned using the programming application. Function keys may have functions assigned to both short and long key presses. A short key press is less than one second, and a long key press is more than one second. Volume Control and Internal Speaker Rotate the volume control potentiometer clockwise to increase the speaker volume and counterclockwise to decrease the volume. By default, the base station is programmed not to generate any audible indicators. UI Board The UI board is connected to the receiver and transmitter modules via separate 18-way ribbon cables. The internal speaker is connected to the UI board via a cable with a mating connector for easy disconnection. If an internal AC Power supply is fitted, a fan power signal is routed from the fan power board to the fan via the UI board. For more information on the connectors and their signals, refer to UI Board Connectors on page 75. Figure 3.6 on page 34 shows a block diagram of the UI board. The UI board does not include a microprocessor. A synchronous bi-
directional serial interface provides communication of key status, LCD and LED-indicator data between the transmitter/receiver modules and the UI board. The serial data is converted to or from a parallel form by a number of shift registers for the function keys and indicators. For the LCD, the serial data is fed to a driver IC that converts the serial data to a form suitable for the LCD. The keys are scanned and the LCD and LED indicators updated approximately every 50ms. The TX/RX switch controls what is displayed on the LCD and also whether the transmitter module or the receiver module will be programmed. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 33 Figure 3.6 UI board block diagram
+13V8
+3V3
+13V8
+3V3 Speaker Audio Volume Level (DC) Rx SPI Data Rx Prog Data Receiver Module Rx SPI Data Rx Prog Data PTT Mic Audio Fan Power Transmitter Module Fan Power Board
+3V3 UI Board Receiver SPI Shift Registers Transmitter SPI Shift Registers
+13V8 Electronic Switching Speaker Volume Control Power LED Busy LED Function Keys and LEDs Tx LED LCD Tx/Rx Switch Prog/Mic Connector Fan Connector 34 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 3.4 System Interface Operation This section describes the functioning of the system interface. The system interface provides:
internal power distribution internal AC/external DC switching serial data connection (THSD or FFSK) fan control general purpose IO receiver audio processing transmitter audio processing opto-isolated keying relay output received signal strength indication (RSSI) receiver gate output receiver inhibit input 13.8VDC (1.5A) output tone on idle (TOI). These functional parts are described in detail below. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 35 Figure 3.7 SI board block diagram SI Board 13.8V 9V 4.5V 3.3V 13.8V out 13.8V 9V 13.8V Mains fail signal AC Power Supply Unit Power Supplies Fuse V 8
. 3 1 DC Power Connector AGND IN 13.8V out RX AUDIO OUT RX LINE OUT TX AUDIO IN TX LINE IN 4.5V 3.3V TX KEY RX INHIBIT RELAY DRIVER OPTO DIG IO TX DIG IO RX DIG IO RX GATE RSSI System Connector TXD RXD Serial Data Connector 9V 4.5V Audio E N O T I O T Control and Signalling 13.8V 3.3V Fan Control 13.8V AUD IN AUX IO TX KEY TX DATA 13.8V AUD OUT AUX IO RX GATE RSSI RX DATA Transmitter Module Receiver Module Temperature Sensor Fan Power Board 36 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 3.4.1 Internal Power Distribution This section details how the input power feed is distributed throughout the base station to power its various sub-systems. Refer to Figure 3.8 for more information. Figure 3.8 Power distribution Connector Prog/Mic d r a o B I U y c n e u q e r F r e z i s e h t n y S C E D O C i o d u A d n a r e v i e c e R l a t i g D i d r a o B e c a f r e t n I y c n e u q e r F r e z i s e h t n y S C E D O C i o d u A d n a r e t t i m s n a r T l a t i g D i d r a o B e c a f r e t n I r e v i e c e R e l u d o M V 8
. 3 1 V 9 V 6 V 3 V 3
. 3 V 5
. 2 r e w o P y l p p u S y r t i u c r i C I D W C i o d u A y r t i u c r i C a t a D y r t i u c r i C l o r t n o C y r t i u c r i C V 8
. 3 1 V 9 V 6 V 3 V 3
. 3 V 5
. 2 r e w o P y l p p u S y r t i u c r i C r e t t i m s n a r T e l u d o M l o r t n o C n a F y r t i u c r i C n a F r e w o P d r a o B V 8
. 3 1 V 9 V 3
. 3 V 5
. 4 y r t i u c r i C d r a o B I S r e w o P y l p p u S l a n g i s l i a f s n a M i V 8
. 3 1 r e w o P C A t i n U y l p p u S C A r e w o P e c r u o S 13.8V DC e s u F Connector DC Power C D r e w o P e c r u o S This is from either the DC input on the rear of the base station, or from an optional internal AC power supply unit. When AC mains is present, power will not be drawn from the DC input. The DC power input of the base station is protected by a rear panel fuse. The 13.8V is distributed directly to TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 37 the receiver and transmitter boards and to the 13.8VDC output on the SYSTEM connector, rated at 1.5A. The 13.8VDC is also used to power the fans, via control circuitry. Note The UI board obtains 13.8V and 3.3V from the receiver module and outputs 13V8_SW to the PROG/MIC connector. 3.3V, 4.5V, 9V, 13.8V The other voltages derived on the SI board are used only on the SI board. 3.4.2 Serial Data THSD Tait High Speed Data (THSD) is a proprietary protocol of Tait Electronics Limited that can be used with the base station. This allows the base station configured in either data repeater or data modem modes to pass data speeds up to 12kbps on a narrow-band channel and 19.2kbps on a wide-band channel. 1200-baud Fast Frequency Shift Keyed (FFSK) data is also available as an option. 3.4.3 General Purpose IO The transmitter and receiver boards can be programmed to act upon signals from the SI board and also outputs signals for certain conditions. These settings are discussed in Preparation for Operation on page 77. 3.4.4 Receiver Audio Processing The SI board provides an external 600 balanced 4-wire line for connecting 4-wire circuits of which two are used by the receiver for receive audio. The SI board provides an unbalanced audio output for connecting to other devices. Output levels can be set via the rear panel. 3.4.5 Tone On Idle The tone-on-idle (TOI) frequency is generated by the SI board and fed directly to the receiver line out. It is enabled using links on the SI board. These settings are discussed in Preparation for Operation on page 77. If enabled, the output of the TOI is switched by the receiver gate. 3.4.6 Transmitter Audio Processing The SI board provides an external 600 balanced 4-wire line for connecting 4-wire circuits of which two are used by the transmitter for transmit audio. 38 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 The SI board provides an unbalanced audio input and output for connecting to other devices. 3.4.7 Opto Isolated Keying External keying of the base station can be achieved using the current regulated optically isolated keying connections. 3.4.8 Relay Output The SI board can provide a relay output with a load voltage of 350V or load current of 120mA continuous. The SI board can also provide a relay driver output. Both these options are configurable and these settings are discussed in Preparation for Operation on page 77. 3.4.9 Fan Control There are three modes of operation for the fans. The modes are:
on continuous on when transmitting on at a pre-defined temperature. The modes of operation are selected by links on the SI board. These settings are discussed in Preparation for Operation on page 77. 3.4.10 RSSI A received signal strength indication (RSSI) voltage is developed by the receiver module and applied directly to the SI board rear panel. 3.4.11 Receiver Gate The receiver gate signal is used by the SI board to control TOI and a relay output. The receiver gate output on the SYSTEM connector can be used for external equipment such as TaitNet trunking controllers. 3.4.12 Receiver Inhibit The receiver inhibit input on the SYSTEM connector is used to control the receiver gate signal. This may be used in linking applications to prevent unwanted receiver audio signals from appearing at the SI board output connector. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Functional Description 39 3.5 Fan Operation The cooling fans are mounted behind the front panel. All fans in the chassis must be of the same type. Dissipation of Heat Heat needs to be dissipated from a number of components within the internal AC power supply unit, transmitter and receiver modules, including the following:
9V regulator RF PA driver for RF PA audio PA The mechanisms by which the heat is conducted away in each case are described below. Dissipation of Heat from Transmitter The transmitter board is mounted directly onto a heatsink through which the forced air from the fans is ducted. Dissipation of Heat from Regulator and Audio PA Heat from the audio PA and 9V regulator on the receiver board is conducted away by a small aluminium heatsink and mounting boss. The heatsink and boss contact the underside of the board where the components are mounted and thermal paste ensures a good thermal transfer between the two surfaces. Dissipation of Heat from RF PAs and Driver Heat from the RF PAs and driver is conducted to the heatsink through a copper separator plate. The copper plate is fixed to the underside of the board and the components soldered directly to it. The copper plate is mounted directly to the main heatsink boss and a coating of thermal paste ensures good thermal transfer between these two surfaces. Dissipation of Heat from Internal AC Power Supply Unit Air is forced round major components within the internal AC power supply unit to keep them cool. Some air is passed through a small heatsink to keep the current-carrying semiconductor devices cool. 40 Functional Description TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 4 Installation This section describes how to install the base station in a standard 19-inch rack or cabinet. It also provides some general information on safety precautions and site requirements. We recommend that you read the entire section before beginning the installation. 4.1 Personal Safety 4.1.1 Lethal Voltages The base station may be fitted with an internal AC power supply unit. If an internal AC power supply unit is fitted, a standard ICE AC power connector is fitted in the rear panel of the base station (refer to AC Power Connection on page 66). Warning!! The internal AC power supply unit contains voltages that may be lethal. Refer to the ratings label on the rear of the base station. The internal AC power supply contains no user-servicable parts. Important Wrong mains voltage! Before connecting to the AC power connector, ensure that the internal 115V/230V voltage mains selector switch is set to the correct mains voltage. The voltage selector switch is located under the base station cover. (Refer to Setting the AC Mains Input Voltage on page 50.) The base station must be installed so that the rear of the base station is located in a service access area. The internal AC power supply unit must be connected to the mains supply source by trained personnel in accordance with local and national regulations. Ensure that all power sources (AC and DC) are disconnected before opening the base station. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Installation 41 4.1.2 Explosive Environments Warning!! Do not operate base station equipment near electrical blasting caps or in an explosive atmosphere. Operating the equipment in these environments is a definite safety hazard. 4.1.3 Proximity to RF Transmissions Do not operate the transmitter when someone is standing within 90cm (3ft) of the antenna. Do not operate the transmitter unless you have checked that all RF connectors are secure. 4.1.4 High Temperatures Take care when handling a base station which has been operating recently. Under extreme operating conditions (+60C [+140F] ambient air temperature) or high duty cycles the external surfaces of the base station can reach temperatures of up to +80C (+176F). 4.2 Equipment Safety 4.2.1 ESD Precautions Important This equipment contains devices which are susceptible to damage from static charges. You must handle these devices carefully and according to the procedures described in the manufacturers data books. We recommend you purchase an antistatic bench kit from a reputable manufacturer and install and test it according to the manufacturers instructions. Figure 4.1 shows a typical antistatic bench set-up. You can obtain further information on antistatic precautions and the dangers of electrostatic discharge (ESD) from standards such as ANSI/ESD S20.20-1999 or BS EN 100015-4 1994. 42 Installation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Figure 4.1 Typical antistatic bench set-up conductive wrist strap dissipative rubber bench mat common point ground
(building ground or mains ground via 1M series resistor) 4.2.2 Antenna Load The base station has been designed to operate safely under a wide range of antenna loading conditions. However, damage will occur if the load is removed while the base station is transmitting. Transmitting into a low VSWR will maximise the power delivered to the antenna. 4.2.3 Equipment Grounding To ensure safe operation, the base station must be correctly grounded as described in these installation instructions. 4.2.4 Installation and Servicing Personnel The base station should be installed and serviced only by qualified personnel. 4.3 Regulatory Information 4.3.1 Distress Frequencies The 406 to 406.1MHz frequency range is reserved worldwide for use by Distress Beacons. Do not program transmitters to operate in this frequency range. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Installation 43 4.3.2 FCC Compliance1 This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. 4.3.3 Unauthorised Modifications Any modifications you make to this equipment which are not authorised by Tait Electronics Ltd. may invalidate your compliance authoritys approval to operate the equipment. 4.3.4 Health, Safety and Electromagnetic Compatibility in Europe In the European Community, radio and telecommunications equipment is regulated by Directive 1999/5/EC, also known as the Radio and Telecommunications Terminal Equipment (R&TTE) directive. The requirements of this directive include protection of health and safety of users, as well as electromagnetic compatibility. Intended Purpose of Product This product is an FM radio transceiver. Its intended purpose is for radio communication in Private Mobile Radio (PMR) services or Public Access Mobile Radio (PAMR) services. Important This product can be programmed for frequencies or emis-
sions that may make its use illegal. A license must be obtained before this product is used. All license require-
ments must be observed. Limitations may apply to transmit-
ter power, operating frequency, channel spacing, and emis-
sion. Declaration of Conformity Brief Declarations of Conformity appear on page 141. You can download the formal Declaration of Conformity from http://eudocs.taitworld.com/. You can also obtain a signed and dated paper copy of the Declaration of Conformity from Tait Europe Ltd. 1. Refer to the specifications manual for more information on the compliance standards to which the base station has been tested and approved. 44 Installation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 4.4 Environmental Conditions 4.4.1 Operating Temperature Range The operating temperature range is 30C to +60C (22F to +140F) ambient temperature for the 25W base station and 30C to +50C (22F to +122F) ambient temperature for the 50W and 40W base stations. Ambient temperature is defined as the temperature of the air at the intake to the cooling fans. 4.4.2 Humidity The humidity should not exceed 95% relative humidity through the specified operating temperature range. 4.4.3 Dust and Dirt For uncontrolled environments, the level of airborne particulates must not exceed 100g/m3. 4.5 Grounding and Lightning Protection 4.5.1 Electrical Ground The base station modules are grounded by physical contact between the module mounting points and the chassis. To ensure a good ground connection you must tighten each module securely (for the correct torque refer to Replacing Modules in the installation and operation manual). A threaded grounding connector is provided on the rear of the tray for connection to the site ground point (for more details refer to Connections on page 65). 4.5.2 Lightning Ground It is extremely important for the security of the site and its equipment that you take adequate precautions against lightning strike. Because it is outside the scope of this manual to provide comprehensive information on this subject, we recommend that you conform to your country's standards organisation or regulatory body. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Installation 45 4.6 Recommended Tools It is beyond the scope of this manual to list every tool that an installation technician should carry. However, the following tools are specifically required for installing the base station:
Philips #2 tip screwdriver used to connect the DC power cables to the DC power terminals Pozidriv PZ3 screwdriver for the M6 screws used to secure the tray to the cabinet in Tait factory-assembled systems Torx T10 screwdriver for the M3 pan head screws with captured shake-
proof washer and flat washer used to secure the modules in the tray Torx T10 screwdriver for the M3 countersunk screws used to secure the cover and the heatsink channels to the tray Pozidriv PZ1 screwdriver for the M3 pan head self-tapping screws used to secure the fans. You can also obtain the TBA0ST2 tool kit from your nearest Tait dealer or Customer Service Organisation. It contains the basic tools needed to install, tune and service the base station. 4.7 Ventilation Always ensure there is adequate ventilation around the base station. Do not operate at high duty cycles in a sealed cabinet. You must keep the ambient temperature within the specified range, and we strongly recommend you ensure that the cooling airflow is not restricted. Important The cooling fans are mounted behind the front panel. To ensure adequate airflow through the base station, do not operate it for more than a few minutes with the fans discon-
nected (e.g. for servicing purposes). 4.7.1 Cabinet and Rack Ventilation Refer to Figure 4.2 on page 47. Adequate cooling airflow is critical to the performance of the base station. The cooling airflow for the base station enters through the front panel and exits at the rear of the tray. For optimum thermal performance, the heated air that has passed through a base station must not be allowed to re-enter the air intakes on the front panel. Each base station requires an unobstructed airflow of 18m3/h (11cfm). To allow enough cooling airflow through a cabinet mounted base station we recommend the following:
46 Installation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Figure 4.2 Typical cabinet ventilation requirements 20cm
(8in) side view e 10cm
(4in) b 2U c d c top view front view c c BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME BUSY TF1 TF2 RF1 RF2 VOLUME b ventilation slots c blanking panels d airflow entry e airflow exit TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Installation 47 a distance of 5cm minimum clearance to any obstruction to the front of the tray. an open area of at least 50cm2 (8in2) per tray of ventilation slots or louvres in front of the air intakes for the fans for each tray; for example ten 685mm (0.253.3in) slots will allow the recommended airflow. a distance of 10cm minimum clearance to any obstruction to the rear of the tray. an open area of at least 50cm2 (8in2) per tray of ventilation slots or louvres in the top of the cabinet, or to the rear of each tray. a 2U gap at the top of the cabinet. Note The ventilation opening must be unrestricted. If the slots or holes are covered with a filter, mesh or grille, the open area must be increased to allow the same airflow as an unrestricted opening. The maximum ambient temperature entering the cabinet must not exceed the maximum temperature specified for the base station. If the base station is installed in a rack or cabinet with other equipment with different ventilation requirements, we recommend that the base station be positioned below this equipment. Auxiliary Extractor Fans If multiple base stations are fitted in a cabinet, auxiliary extractor fans may be required to ensure adequate cooling. If fitted they should be capable of extracting 18m3/h (11cfm) per base station in the cabinet. If you have any other configuration, the performance of your system will depend on how closely you comply with the base station airflow requirements described above. 48 Installation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 4.8 Installing the Base Station 4.8.1 Unpacking the Equipment Unpacking the Base Station The base station is packed in a strong corrugated cardboard carton with top and bottom foam cushions. 1. 2. 3. 4. Cut the tape securing the flaps at the top of the carton and fold them flat against the sides. Rotate the carton carefully onto its side and then onto its top, ensuring that none of the flaps is trapped underneath. Slide the carton upwards over the foam cushions and lift it away. Remove the cushion from the bottom of the base station. Lift the base station clear of the remaining cushion. Disposal of Packaging If you do not need to keep the packaging, we recommend that you recycle it according to your local recycling methods. The foam cushions are CFC-
and HCFC-free and may be burnt in a suitable waste-to-energy combustion facility, or compacted in landfill. 4.8.2 Identifying the Mechanical Configuration The base station is available in two different mechanical configurations with or without provision for an internal AC power supply unit. The mechanical configuration with provision for an internal AC power supply has the following distinguishing features:
larger air intake on the right-hand side of the front panel provision for AC connector on the left-hand side of the rear panel (refer to Figure 6.2 on page 66) ground point on the right-hand side of the rear panel rather than on the left-hand side different SI board and internal cables. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Installation 49 4.8.3 Power Supply Options The base station is available with or without an internal AC power supply unit. All base stations have an external DC input power connector which is used as main power supply when no internal AC power supply unit is fitted. When the internal AC power supply unit is fitted, the DC input can be used as a DC backup power option. In case of AC mains failure the base station will automatically and seamlessly switch to DC power input. If no internal AC power supply unit is fitted, an external Tait T809-10-87xx power supply can be used to supply the DC voltage required. 4.8.4 Setting the AC Mains Input Voltage Warning!! The internal AC power supply unit contains voltages that may be lethal. Refer to the ratings label on the rear of the base station. Ensure that all power sources (AC and DC) are disconnected before opening the base station. 1. 2. 3. Disconnect all power sources before opening the base station. Use a Torx T10 screwdriver to remove the 15 countersunk screws securing the cover to the tray. Set the 115V/230V AC mains voltage selector switch to the correct AC mains input voltage (Figure 4.3). Figure 4.3 115/230V AC mains voltage selector switch 115/230V AC mains voltage selector switch 50 Installation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 4.8.5 Mounting the Base Station 1. 2. 3. Fit the base station into the cabinet or rack and secure it firmly with an M6 (or 0.25in if you are using imperial fittings) screw, flat and spring washer in each of the four main mounting holes b, as shown in Figure 4.4 on page 51. The base station can be wall-mounted by rotating the front mounting brackets and fitting the optional rear brackets (TBBA03-01). When the base station is wall-mounted ensure the airflow is from bottom to top (front panel mounted down) or side to side. For transport or in installations subject to vibration, the base station should be supported at the rear using a transit bracket
(Tait recommends to use the TB7100 transit bracket, Tait part number 302-05282-00). Figure 4.4 Base station mounting points (configuration with AC power supply unit shown) b c D E G f e DC power connector f AC power connector G rack frame b main mounting holes c base station d ground point TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Installation 51 4.8.6 Cabling We recommend that you route all cables to and from the base station along the side of the cabinet so the cooling airflow is not restricted. Cables should be well supported so that the connectors or terminals on the base station and on the ends of the cables do not have to support the full weight of the cables. Cables must be routed so that they do not restrict the air outlets at the rear of the base station. 4.8.7 Accessories The base station can use the following accessories:
T809-10-87xx power supply TBBA03-01 wall mounting kit TBBA03-02 duplexer kit
(mechanical configuration without internal AC power supply unit) TBBA03-03 duplexer kit
(mechanical configuration with internal AC power supply unit) TMAA02-01 fist microphone. 52 Installation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 5 Replacing Modules This section describes how to:
remove and open and close the base station remove and fit the modules and components General Important Before disassembling the base station, disconnect the base station from any test equipment or power supply. Disassemble only as much as necessary to replace the defective parts. Inspect all disassembled parts for damage and replace them, if necessary. Observe the torque settings indicated in the relevant figures. Important To ensure adequate airflow through the base station, do not cover the fan intake grill on the front panel. Do not operate for more than a few minutes with the fan intake covered. Important The transmitter and receiver modules must only be replaced with base station modules. Before replacing a module in the base station, you should decide whether you need to save its configuration data. If you are unsure whether you have a record of the configuration, use the Programming Application to read the base station and save the configuration files before removing any modules. Once you have replaced the module, you will be able to restore the original configuration by programming the saved configuration back into the base station. If one or more of the modules is faulty, you may be unable to read the base station. In this case, you will have to restore the configuration from a back-up file. Refer to the section Preparation for Operation on page 77 for more information. Saving the Base Station Configuration TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Replacing Modules 53 5.1 Removing the Base Station and Opening the Tray Important The modules in the base station are not hot-pluggable. It is recommended the tray is removed from the rack before any modules are replaced. Figure 5.1 Opening the tray b c d e f Configuration with internal AC power supply unit shown g 1. 2. 3. 4. 5. 6. 7. 8. If an internal AC Power supply is fitted, disconnect the base station from AC power g. Remove the fuse e at the rear of the base station to disconnect the base station from DC power. Use a Philips #2 screwdriver to disconnect the cables from the DC power connector f. Disconnect the antenna connectors for transmit and receive d. Disconnect any other connectors. Disconnect the ground cable from the ground point c. Use a PZ2 Pozidriv screwdriver to remove the four M6 screws, and remove the base station from the rack. Use a Torx T10 screwdriver to remove the 15 countersunk screws. Remove the tray cover b. 54 Replacing Modules TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 5.2 Replacing the UI Board Removal Fitting 1. 2. 3. 4. 5. Remove the volume knob by pulling slowly but firmly. The knob is a friction fit and can leave the collet behind on the shaft. If this happens, remove the collet from the shaft and place inside the knob. Disconnect the speaker connector b. Use a Torx T10 screwdriver to remove the three screws c together with the spring washers and flat washers. Insert the card remover tool (220-02034-xx) from the tool kit
(TBA0ST2), or a small flat-bladed screwdriver into the two small holes at the bottom of the UI board. Lever the board completely off the spring clips d. Carefully slide the UI board towards the rear of the base station until the volume-control shaft clears the front panel. Lift the UI board clear of the chassis. 6. Disconnect the two Micro-MaTch connectors e. Figure 5.2 Removing the UI board b Torx T10 c 4.5lbin (0.5Nm) d e Cables not shown. 1. 2. 3. 4. 5. 6. Plug the two Micro-MaTch connectors e into the UI board. The Micro-MaTch connector for the transmitter is closest to the edge of the UI board. Align the volume-control shaft with the hole in the front panel, also align the programming/microphone connector and function buttons as the board is slid into place. Gently slide the UI board into position so that the spring clips d are engaged. Press firmly around the spring clips to ensure they are engaged fully. Use a Torx T10 screwdriver to fasten the three screws c to 4.5lbin
(0.5Nm). Plug the speaker connector b into the UI board. Fit the volume knob onto the shaft and press firmly until fully seated. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Replacing Modules 55 5.3 Replacing the Receiver Module Removal Note Release the latch underneath the DC power connector before attempting to disconnect it. 1. 2. 3. 4. Disconnect the cables to the RF b, DC power c, system interface d, and the user interface e connectors. Use a Torx T10 screwdriver to remove the five screws f and g together with the spring washers and flat washers. Lift the receiver module clear of the chassis. Make sure not to lose the metal heatsink g for the audio PA. Figure 5.3 Replacing the receiver module b Torx T10 4.5lbin c g d h f Torx T10 4.5lbin f e Cables not shown. Check that links LK2, LK3 and LK4 are not fitted. Note Although the boards of the transmitter and receiver modules look alike, the board on the transmitter module can not replace a receiver module. There is no heat transfer plate on the receiver module. Check that the replacement module has links LK2, LK3 and LK4 not fitted as shown in Figure 5.3. Fitting Note Before fitting the receiver module, make sure that the metal heat-
sink h for the audio PA is fitted to the tray chassis. 1. 2. 3. 4. Place one screw g into the hole above the metal heatsink plate by:
a. holding the module at a 60 angle b. fitting the screw on the Torx driver slipping it through the shield hole and into the board hole. c. Position the receiver module inside the tray chassis. Use a Torx T10 torque-driver to tighten the screws f and g to 4.5lbfin (0.5Nm). Connect the cables to the RF b, DC power c, system interface d, and user interface e connectors. 56 Replacing Modules TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 5.4 Replacing the Transmitter Module Removal Note Release the latch underneath the DC power connector before attempting to disconnect it. 1. 2. 3. 4. Disconnect the cables to the RF b, DC power c, system interface d, and the user interface f connectors. Use a Torx T10 screwdriver to remove the screw h fastening the temperature sensor to the heatsink. Use a Torx T10 screwdriver to remove the four screws g fastening the heatsink to the tray chassis. Lift the transmitter module clear of the tray chassis. Figure 5.4 Replacing the transmitter module b Torx T10 4.5lbin g h c g d e g Check that links LK2, LK3 and LK4 are not fitted. g f Torx T10 4.5lbin g Cables not shown. Fitting Note Although the boards of the transmitter and receiver modules look alike, the board on the transmitter module can not replace a receiver module. There is no heat transfer plate on the receiver module. Check that the replacement module has links LK2, LK3 and LK4 not fitted as shown in Figure 5.4. 1. 2. 3. 4. Position the transmitter module inside the tray chassis. Use a Torx T10 torque-driver to fasten the four screws g to 4.5lbfin
(0.5Nm). Use a Torx T10 torque-driver to fasten the temperature sensor with the screw h to 4.5lbfin (0.5Nm). Connect the cables to the RF b, DC power c, system interface d, and the user interface f connectors. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Replacing Modules 57 5.5 Replacing the SI Board Removal Fitting 1. 2. 3. 4. 5. Disconnect the system interface cables e to the transmitter and the receiver, the fan control cable f, the temperature sensor cable g, and the mains power present cable, and move them to one side. Remove the DC power cables h and move them to one side. Note the connection positions. Use a Torx T10 screwdriver to remove the two screws j. Use a PZ1 Pozidriv screwdriver to remove the screw i on the heatsink of U406. Carefully lift the front of the SI board off the spring clips 1). Carefully slide the SI board towards the front of the base station until the connectors b, c and d clear the rear panel. Lift the SI board clear of the chassis. Figure 5.5 Replacing the SI board b c d j h g Torx T10 4.5lbin j i PZ1 4.5lbin f 1) Cables not shown. e 1) 1. 2. Slide the SI board into the tray chassis by fitting the connectors b, c and d into the rear panel. Press down firmly on the front of the SI board to engage the two spring clips j. Important Make sure that the thermal pad is fitted under and the plastic insulating washer is fitted on U406. 3. 4. Use a torque-driver to fasten the two screws j (Torx T10) the screw i (PZ1) on the heatsink of U406 to 4.5lbin (0.5Nm). Connect the system interface cables e to the transmitter and the receiver, the fan control cable f, the temperature sensor cable g, and the DC power cables h. 58 Replacing Modules TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 5.6 Replacing the Transmitter and Receiver Fans Removal 1. 2. 3. 4. Use a Torx T10 screw driver to remove the four screws b securing the fan duct d in the tray chassis. Disconnect the fan control loom from the fan power board c. Slide back the fan duct d and lift clear. Unplug the fan to be replaced from the fan power board c on the fan duct d. Use a PZ1 Pozidriv screwdriver to remove the two M325mm screws e and remove the fan. Figure 5.6 Replacing the transmitter and receiver fans f PZ1 4.5lbin e d b c b Torx T10 4.5lbin Fitting 1. 2. 3. 4. Place the fan into position on the fan duct e and use a PZ1 screwdriver to fasten the two M325 screws e to 4.5lbin (0.5Nm). Thread the fan cable through the hole in the side of the fan duct. Plug the fan into the fan power board c. Slide the fan duct d into the chassis. Plug the fan control loom into the fan power board c. Use a Torx T10 screwdriver to fasten the four screws b to 4.5lbin
(0.5Nm). TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Replacing Modules 59 5.7 Replacing the Fan Power Board Note The fan power board is manufactured as part of the UI board and cannot be ordered separately. For more information, refer to Spare Parts in the service manual. The circled numbers in this section refer to the items in Figure 5.6 on page 59. 1. 2. 3. Disconnect the fan control cable and the fan cables from the fan power board c. Use a Torx T10 screwdriver to remove the screw f attaching the fan power board c to the fan duct d. Fitting is carried out in reverse order. 5.8 Replacing the Temperature Sensor Board Note The temperature sensor board is manufactured as part of the SI board and cannot be ordered separately. For more information, refer to Spare Parts in the service manual. 1. 2. 3. Disconnect the temperature sensor cable from the SI board
(Figure 5.5, g). Use a Torx T10 screwdriver to remove the screw (Figure 5.4, h) attaching the temperature sensor board to the transmitter module. Fitting is carried out in reverse order. 60 Replacing Modules TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 5.9 Removal Replacing the AC Power Supply Unit, Fan and Filter Module 1. 2. 3. 4. 5. 6. 7. 8. Disconnect the base station from AC mains power. Remove the fuse at the rear of the base station to disconnect the base station from DC power. Disconnect the fan g at connector PL7 1! of the UI board. Use a Torx T10 screwdriver to remove the two screws e that hold the AC power supply f unit to the main chassis. Slide the AC power supply unit from its position to gain access to the fan. Use a PZ1 Posidriv screwdriver to remove the two M3 x 25mm screws h that hold the fan in place, and remove the fan. Disconnect the cable for the mains fail signal at J110 c and the DC power cable at J102 b of the SI board. Disconnect the connection (not shown) from the AC filter module d to the AC power supply unit, and remove the AC power supply unit. 9. Slide the AC filter module from its position and remove it. Figure 5.7 Replacing the AC power supply unit, fan, filter module, and speaker Cables not shown. b c j Torx T10 4.5lbin 1!
1) i h PZ1 4.5lbin g e f Torx T10 4.5lbin e d TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Replacing Modules 61 Fitting 1. 2. 3. 4. 5. 6. Slide the AC filter module d into the securing tabs at the rear of the tray. Place the fan g into position on the AC power supply unit f and use a PZ1 screwdriver to fasten the two M325 screws h to 4.5lbin
(0.5Nm). Connect the AC power supply unit to the AC filter module. Slide the AC power supply unit into position on the tray and connect the fan to connector PL7 1! on the UI board. Use a Torx T10 screwdriver to fasten the two screws e that hold the AC power supply unit in place to 4.5lbin (0.5Nm). Connect the cable for the mains fail signal at J110 c and the DC power cable at J102 b of the SI board. 5.10 Replacing the Speaker The circled numbers in this section refer to the items in Figure 5.7 on page 61. 1. 2. 3. Disconnect the speaker cable from connector PL2 1) on the UI board. Use a Torx T10 screw driver to remove the two screws and washers i securing the speaker i to the tray. Fitting is carried out in reverse order. The torque for the Torx T10 screws i is 4.5lbin (0.5Nm). 62 Replacing Modules TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 5.11 Final Reassembly Figure 5.8 shows the assembled configuration with internal AC power supply unit. Figure 5.9 shows the assembled configuration without internal AC power supply unit. 1. 2. 3. 4. Ensure all internal cables are connected correctly as shown below. Place the tray cover onto the chassis. Use a Torx T10 torque-driver to fasten the tray cover with the 15 countersunk screws to 4.5lbin (0.5Nm). Fit the fuse b at the rear of the base station. Figure 5.8 Final reassembly (configuration with internal AC power supply unit) Fuse TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Replacing Modules 63 Figure 5.9 Final reassembly (configuration without internal AC power supply unit) Fuse 64 Replacing Modules TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 6 Connections Overview This section gives an overview of looms and cables, and describes the specifications and pinouts of the external and internal connectors. Figure 6.1 provides an overview of the connections. Figure 6.1 Connectors, looms and cables Ground Point Tx/Ant Connector Rx Connector DC Input Connector System Connector Fuse Serial Data Connector AC Input Connector RF connector 3 0 1 K S RF Transmitter Module Temperature Sensor 0 0 1 K S User interface connector DC power connector 1 0 1 K S DC power Auxiliary connector 0 0 1 L P Transmitter/SI RF connector 3 0 1 K S RF Receiver Module 0 0 1 K S User interface connector DC power connector 1 0 1 K S DC power Auxiliary connector 0 0 1 L P Receiver/SI Fan power PL5 PL4 Fan Power Board PL6 PL3 J105 J110 J106 J104 SI Board J600 DC Output Factory only 2 0 2 J 1 0 1 J 0 0 1 J r e t l i F t u p n I C A e l u d o M 3 0 1 J 2 0 1 J J201 J200 AC Power Supply Unit 115V/230V Selector Switch 1 0 1 L P AC power l a n g i s l i a f s n a M i Fan Fan PL8 PL7 PL2 Receiver/UI Transmitter/UI UI Board SK1 SK2 Speaker Fan SK3 Prog/Mic Connector Configuration with internal AC power supply unit shown For information on the factory connector and the internal options connector of the transmitter and receiver, refer to the PCB information. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Connections 65 6.1 External Connectors Figure 6.2 shows the external connectors:
Figure 6.2 External connectors (configuration with internal AC Power supply unit shown) programming/microphone connector (PROG/MIC) AC power connector serial data connector
(IOIOI) system connector
(SYSTEM) DC power connector
(13.8VDC 13A MAX) receiver antenna connector
(RX) transmitter antenna connector
(TX/ANT)* *Tx/ANT is Tx and Rx, if the duplexer is fitted. ground point AC Power Connection If an internal AC power supply unit is fitted, AC power is available in 195VAC to 264VAC or 99VAC to 135VAC. The voltage selector switch is located under the base station cover. (Refer to Setting the AC Mains Input Voltage on page 50.) The AC power connector at the rear of the base station is a standard 3-way AC pin connector. Warning!! The internal AC power supply unit contains voltages that may be lethal. Refer to the ratings label on the rear of the base station. The internal AC power supply contains no user-servicable parts. Important Wrong mains voltage! Before connecting to the AC power connector, ensure that the internal 115V/230V voltage mains selector switch is set to the correct mains voltage. The base station must be installed so that the rear of the base station is located in a service access area. The internal AC power supply unit must be connected to the mains supply source by trained personnel in accordance with local and national regulations. Ensure that all power sources (AC and DC) are disconnected before opening the base station. 66 Connections TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 DC Power Connection The base station is designed to accept a nominal 13.8V DC, with negative ground. The DC power connector (J105) at the rear of the base station is a heavy-
duty M4 screw terminal connector suitable for many forms of connection. Pin Signal Name Signal Type Notes 1 2 13.8VDC ground input input external view You must connect the DC supply from the battery to the base station via a readily accessible disconnect device such as a fuse or DC-rated circuit breaker with the appropriate rating, as shown in the table below. The DC input leads should be of a suitable gauge to ensure less than 0.2V drop at maximum load over the required length of lead. Nominal Supply Voltage Input Voltage Range Circuit Breaker/Fuse Rating Recommended Wire Gaugea 13.8VDC 10VDC to 16VDC 20A 8AWG / 8.35mm2 a. For a length of 1.5m to 2m (5ft to 6.5ft) (typical). Terminate the DC input leads with a suitable crimp connector for attaching to the J105 M4 screws. Figure 6.3 Recommended DC power connection Circuit Breaker or Fuse TB7100 base station Battery Ground Point The ground point is a terminal for grounding the tray to the mounting rack. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Connections 67 RF Connections
(RX and TX/ANT) The RF input to the base station is via the RX connector (N-type) on the rear panel of the base station. The RF output is via the TX/ANT connector
(N-type) on the rear panel of the base station. The RF connector is an N-type connector with an impedance of 50. Important The maximum RF input level is +27dBm. Higher levels may damage the radio. Pin Signal Name Signal Type Notes B C rear view 1 2 RF GND RF analog RF ground 68 Connections TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 System Connector
(SYSTEM) The system connector (J106) at the rear of the base station is a 25-way standard-density D-range socket. Pin Signal Name Signal Type Notes Rx line output +
Tx/Rx digital input 1
(AUX_GPI1) Tx/Rx digital input 2
(AUX_GPI2) Rx line output Tx line input +
Tx/Rx digital input 3
(AUX_GPI3) Tx/Rx digital input 4
(AUX_GPIO4) Tx line input RSSI Tx digital in/out 1
(TX_AUX_GPIO5) Tx audio input Tx digital in/out 2
(TX_AUX_GPIO6) ground Rx gate Tx key Rx relay (comm) Rx relay (NO or NC) Rx Inhibit Rx digital in/out 1
(RX_AUX_GPIO5) Tx Opto input +
Tx Opto input Rx digital in/out 2
(RX_AUX_GPIO6) B C D E F G H I J 1) 1!
1@
1#
1$
1%
1^
1&
1*
1(
2) 2!
2@
2#
2$
2%
external view 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 audio output input transformer isolated line <6dBm high 1.7 V, low 0.7 V audio output audio input input transformer isolated line transformer isolated line high 1.7 V, low 0.7 V input audio input output input/output audio input input/output ground output input output output input input/output input input input/output output: high 3.1 V (no load), low <0.6 V (10mA sink) input: high 1.7 V, low 0.7 V transformer isolated line DC signal, 0.6 to 2.5V output: high 3.1 V (no load), low <0.6 V (10mA sink) input: high 1.7 V, low 0.7 V output: high 3.1 V (no load), low <0.6 V (10mA sink) input: high 1.7 V, low 0.7 V open collector active low opto-isolated 0 to 3.3V, active low output: high 3.1 V (no load), low <0.6 V (10mA sink) input: high 1.7 V, low 0.7 V input voltage range 10VDC to 60VDC output: high 3.1 V (no load), low <0.6 V (10mA sink) input: high 1.7 V, low 0.7 V active low, sinks up to 250mA
<4.4Vpp resetable SMD fuse 1.5A Digital output/Tx relay Rx audio output 13.8 volt output output output power output TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Connections 69 Serial Data Connector (IOIOI) The serial data connector (J1054) labelled IOIOI is a 9-way female D-range connector, which provides a data connection to the base station. Pin Signal Name Signal Type Notes b c d e f g h i j external view 1 2 3 4 5 6 7 8 9 not connected receive data transmit data not connected ground not connected ready to transmit clear to send not connected not used output input not used ground not used output input not used data transmitted by TB7100 data received by TB7100 request to send clear to send Programming/Micro phone Connector
(PROG/MIC) The PC running the programming and calibration application is connected to the base station via the programming/microphone connector (SK3) of the UI board. The programming/microphone connector is an 8-way RJ45 socket. Use the TPA-SV-006 or the T2000-A19 programming lead and a TMAA20-04 adapter to connect the PC to the base station. It is possible to plug the RJ11 directly into the RJ45 socket without the use of the adapter, but this is not recommended. A microphone can also be connected to the base station via this connector. Pin Signal Name Signal Type Notes 1 2 3 4 5 6 7 8 external view 1 2 3 4 5 6 7 8 not connected
+13V8_SW TXD PTT MIC_AUD_IN GND RXD not connected output input input input ground output not connected
+13.8V, 250mA transmit data PTT voice band (microphone) input receive data not connected 70 Connections TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 6.2 Internal Connectors 6.2.1 Transmitter and Receiver Connectors The internal connectors of the transmitter and receiver are the same for both modules. Note The signals on the user interface connectors are different for the transmitter and the receiver. RF Connectors The RF connectors of the transmitter and the receiver are N-type connectors with an impedance of 50. DC Power Connectors The DC power connectors of the transmitter and the receiver are the interface for the primary 13.8V power source. There are different DC power connectors for the 50W/40W and 25W versions. Pin Signal name Signal type Notes AGND SPK SPK+
ground analog output not connected analog output not connected 13.8VDC DC power input 1 2 3 4 50W/40W external view 25W 1 2 3 4 external view TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Connections 71 Auxiliary Connectors The auxiliary connectors of the transmitter and receiver are 15-way standard-density D-range sockets. Pin Signal Name Signal Type Notes B C D E F G H I J 1) 1!
1@
1#
1$
1%
external view 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 AUX GPIO7 AUX GPIO4 AUX RXD AUX GPI3 AUX GPI2 RSSI AUX TAP IN 13.8VDC SW AUX GPIO6 AUX GPIO4 AUX TXD AUX GPI1 AUD TAP OUT AUX MIC AUD AGND input output input output output output input ground User Interface Connector The user interface connectors (SK100) of the transmitter and the receiver is a 15-way moulded plastic connector. Pin Signal Name Signal Type Transmitter Receiver Notes 17 18 15 16 13 14 12 11 10 9 7 8 5 6 3 4 1 2 external view pin 1 closest to PCB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 no connection RX AUD no connection 13.8VDC input CH TXD input CH PTT CH MIC AUD input AGND CH RXD DGND CH ON OFF VOL WIP DC CH SPI D0 CH LE CH GPIO1 3.3VDC CH SPI D1 CH SPI CLK SPK-
SPK+
ground output ground output input output output output no connection input output no connection no connection no connection
+13V8DC for UI board programming data audio from microphone analog ground programming data digital ground digital ground volume control no connection output input no connection microphone PTT output ground output ground output input output output output output input output output output speaker audio speaker audio digital ground
+3V3DC for UI board 72 Connections TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 6.2.2 SI Board Connectors DC Power Connectors The two DC power connectors (J102 and J103) on the SI board are heavy-
duty M4 screw terminals. J102 (if fitted) accepts power from the internal AC power supply unit. J103 distributes the DC power to the transmitter and the receiver. Pin Signal Name Signal Type Notes 1 2 Tx and Rx 13.8VDC Tx and Rx ground J102 :input J103: output J102 :input J103: output external view System Interface Connector to Transmitter The system interface connector (J101) to the transmitter is a 16-way surface-
mounted connector. 1 2 15 16 external view Pin Signal Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 TX_AUX_GPIO7 TX_AUX_GPIO6 TX_AUX_GPIO5 TX_AUX_GPIO4 TX_AUX_RXD TX_AUX_TXD TX_AUX_GPI3 TX_AUX_GPI1 TX_AUX_GPI2 TX_AUD_TAP_OUT TX_RSSI TX_MIC_AUD TX_AUD_TAP_IN TX_GND TX_13V8 N/C Signal Type output bidirectional bidirectional bidirectional input output input input input no connection no connection output output ground no connection no connection Notes Tx key signal digital input/output digital input/output digital input/output data data digital input digital input digital input Tx audio ground TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Connections 73 System Interface Connector to Receiver The system interface connector (J100) to the receiver is a 16-way surface-
mounted connector. 1 2 15 16 external view Pin Signal Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RX_AUX_GPIO7 RX_AUX_GPIO6 RX_AUX_GPIO5 RX_AUX_GPIO4 RX_AUX_RXD RX_AUX_TXD RX_AUX_GPI3 RX_AUX_GPI1 RX_AUX_GPI2 RX_AUD_TAP_OUT RX_RSSI RX_MIC_AUD RX_AUD_TAP_IN RX_GND RX_13V8 N/C Signal Type input bidirectional bidirectional bidirectional input output input input input input input no connection no connection ground no connection no connection Notes gate signal digital input/output digital input/output digital input/output data data digital input digital input digital input receive audio RSSI ground 74 Connections TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 6.2.3 UI Board Connectors User Interface Connector to Transmitter The user interface connector (SK1) to the transmitter is a 16-way MicroMaTch connector. 1 2 external view
. Pin Signal Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TX_RX_AUD TX_+13V8_SW TX_CH_TXD TX_CH_PTT TX_MIC_AUD_OUT TX_AGND TX_CH_RXD TX_DGND TX_CH_ON_OFF TX_VOL_WIP_DC TX_CH_SPI_D0 TX_CH_LE TX_CH_SPIO1 TX_+3V3 TX_CH_SPI_DI TX_CH_SPI_CLK TX_CH_SPK-
TX_CH_SPK+
Signal Type no connection no connection output output output ground input ground input output input input input no connection output input no connection no connection Notes no connection no connection programming data microphone PTT audio from microphone analogue ground programming data digital ground digital ground no connection digital ground no connection no connection no connection User Interface Connector to Receiver The user interface connector (SK2) to the receiver is a 16-way MicroMaTch connector. 1 2 external view Pin Signal Name 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 RX_RX_AUD RX_+13V8_SW RX_CH_TXD RX_CH_PTT RX_MIC_AUD_OUT RX_AGND RX_CH_RXD RX_DGND RX_CH_ON_OFF RX_VOL_WIP_DC RX_CH_SPI_D0 RX_CH_LE RX_CH_GPIO1 RX_+3V3 RX_CH_SPI_DI RX_CH_SPI_CLK RX_CH_SPK-
RX_CH_SPK+
Signal Type no connection input output no connection input ground input ground input output input input input input output input input input Notes no connection
+13V8DC for PCB programming data no connection no connection analogue ground programming data digital ground digital ground volume control digital ground
+3V3DC for PCB speaker audio speaker audio TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Connections 75 76 Connections TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7 Preparation for Operation 7.1 Introduction The base station operation can be modified by the use of links and programmable settings. The base station can be configured for operation in the following basic modes of operation:
Line-controlled base: The base station transmit audio and key is derived via the system interface. Audio response is link-selectable. Talk through repeater (voice): The receiver audio is directly connected to the transmitter and the transmitter is keyed by the receiver gate. Audio response in this mode is software-selectable. Data repeater: The received data line is connected to the transmit data line. receiver gate and transmitter key signals are not used. RF modem: Data on the serial interface is connected to the transmitter and the receiver. TaitNet trunking. 7.2 Mode of Operation This section shows how to set up the base station for various modes of operation. Examples are:
line-controlled base talk through repeater RF modem data repeater TaitNet trunking. Where applicable, the procedure for setting any of the audio levels or other adjustment points will be described, along with the procedure for measuring a variety of parameters commonly monitored. To verify the operation of the base station it is best to configure it as a line-
controlled base first. In this mode of operation the receiver and transmitter modules can be independently tested because all the audio inputs and outputs are accessible via the system interface connector. When the base station has been tested as a line-controlled base, it is then a simple process to change the links to the required mode of operation and perform any additional functional testing required for that mode of operation. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 77 7.3 Line-controlled Base In the line-controlled base mode the audio and control signals are routed from the external 25-way D-range connector through the system interface to the receiver and transmitter modules. External equipment is used to control the operation of the base station. Figure 7.1 Line-controlled base RF In RF Out Receiver Transmitter i o d u A x R e t a G x R y e K x T i o d u A x T System Interface 7.3.1 Test Equipment Required The following test equipment is used to setup the base station for line-
controlled base operation:
TBA0STU calibration test unit (CTU) which includes the CTU adaptor and CTU cable, or TBA0ST1 calibration test unit (CTU), TBB0STU-TBB CTU adaptor
(220-02068-xx) and CTU cable (219-02888-xx) PC, programming cables and the TB7100 programming application digital voltmeter DC power supply (not necessary with internal AC power supply unit option) RF test set with:
RF power meter modulation analyser RF signal generator sinad meter audio distortion meter 78 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 audio level meter audio signal generator. Calibration Test Unit
(CTU) The CTU is used to configure and test the base station. The same CTU is used for TB8000 and TB9000 base station equipment, so only some of the features on the CTU apply to the TB7100 base station. The CTU adaptor is plugged into the system connector of the CTU. The CTU cable is plugged into the system connector of the base station. For more information on the CTU refer to the TBA0STU/TBA0STP Calibration and Test Unit Operation Manual (MBA-00013-xx). 7.3.2 Test Equipment Setup 1. 2. Connect the PC to the programming port on the front panel of the base station. See Connecting to the PC on page 105. Plug the adaptor into the system connector on the CTU. Connect the adaptor cable to the system connector of the base station. Note Connections between the CTU and the test equipment will vary and are described in the relevant test steps. 3. 4. 5. 6. Ensure all switches on the CTU are in the 1 or OFF position
(inactive). Connect the receiver N-type connector to the RF test set (signal generator) output port. Connect the transmitter N-type connector to the RF test set (power and modulation meter) input port, check the test set is rated for the transmit power of the base station. Connect the 13.8V power supply to the DC input on the base station, ensuring correct polarity. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 79 7.3.3 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the following links on the SI board. Links of the mandatory settings must be in the position indicated. Links of the optional settings must be in one of the positions listed. The defaults are generally recommended. Replace the cover as detailed in Final Reassembly on page 63. Table 7.1 Line-controlled basemandatory settings LINK Name Pins Position Function Comments J400 J502 J503 Tx Key Source Tx Audio Source Rx Audio Destination W401 W402 TOI 9V Enable TOI 4.5V Enable 3 3 3 2 2 1-2 1-2 2-3 Not fitted Line-controlled Base mode External PTT signal to transmitter Line-controlled Base mode Line-controlled Base mode Tone on Idle disable Balanced and unbalanced audio inputs to transmitter Received audio to balanced and unbalanced audio outputs Refer Tone On Idle (TOI) on page 118 to enable idle tone. Table 7.2 Line-controlled baseoptional settings LINK Name Pins Position Function Comments J500 J501 Line Out Frequency Response Line In Frequency Response J507 Line In Destination J206 Fan Control 1 J207 Fan Control 2 3 3 3 3 3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 1-2 2-3 Flat response De-emphasis Flat response De-emphasis Default position is 2-3 Default position is 2-3 Tx Line In to Aux Mic Tx Line In to Audio Tap In Default position is 2-3. Position 1-2 is usually used only by trunking systems. Fan controlled by J207 Fan always on Default position is 1-2 Fan Tx key-controlled Fan temperature-controlled Default position is 2-3 80 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Figure 7.2 System interface link positions J207 W401 W402 J206 J507 J501 J500 J503 J400 J502 7.3.4 Applying Power Before turning on the base station, check that:
all looms and cables at the front and rear of the base station are fitted correctly all connectors are secure the 20A fuse is fitted. Turn on the power supply and check that the base station powers up correctly:
The power LED on the user interface lights up. The LCD indicates the current channel number. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 81 7.3.5 Programming Transmitter Receiver To program a base station for line-controlled base operation follow the instructions below. Do not add CTCSS or any additional settings at this stage. These are covered in Programmable Features on page 105. See Connecting to the PC on page 105 before beginning. 1. 2. 3. 4. 5. 6. 7. 1. 2. 3. 4. 5. Place the transmit/receive programming switch on the user interface into the transmit position. Read the transmitter or start with a new transmitter data file. Use the reset to defaults command under the file menu to ensure all the mandatory and recommended settings are in their correct default states. Open the specifications form and select the correct RF band, not required if the transmitter file was read. Open the channels form and add as many channels as are required. For each channel enter the:
transmit frequency Tx subaudible signalling value (leave as None) power level bandwidth. Open the key settings form and select the required function for each function key. For example:
FN1 = Preset Channel FN2 = Preset Channel FN3 = Preset Channel FN4 = None Program the transmitter. Place the transmit/receive programming switch on the user interface into the receive position. Read the receiver or start with a new receiver data file. Use the reset to defaults command under the file menu to ensure all the mandatory and recommended settings are in their correct default states. Open the specifications form and select the correct RF band, not required if the receiver file was read. Open the channels form and add as many channels as are required. For each channel enter:
82 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 receive frequency Rx subaudible signalling value (leave as None) squelch setting bandwidth. 6. Open the key settings form and select the required function for each function key. For example:
FN1 = Preset Channel (same as transmitter) FN2 = Preset Channel (same as transmitter) FN3 = Preset Channel (same as transmitter) FN4 = Monitor / Squelch override 7. Program the receiver. 7.3.6 Receiver Audio Level Adjustment Unbalanced Line Balanced Line 1. 2. 3. 4. 5. 1. 2. 3. 4. 5. 6. Connect the unbalanced output from the CTU to the audio input port on the test set and set up the test set to measure the audio level. Set the RF signal generator to the correct RF frequency, modulated with a 1kHz audio tone at 60% of full system deviation. Set the RF output level to -70dBm. Verify that the receiver gate opens and the busy LED turns on. Adjust RV502 (UNBAL OUT) on the rear panel to set the unbalanced output to the required level (typically 1Vp-p). Connect the line output from the CTU to the audio input port on the test set and set up the test set to measure the audio level. Turn the CTU 600 ohm switch on. Set the RF signal generator to the correct RF frequency modulated with a 1kHz audio tone at 60% of full system deviation. Set the RF output level to -70dBm. Verify that the receiver gate opens and the busy LED turns on. Adjust RV503 (BAL OUT) on the rear panel to set the balanced output to the required level (typically -10dBm). TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 83 7.3.7 Receiver Functional Testing This section describes how to test some parameters which are commonly monitored. Sensitivity The sensitivity can be measured using either the balanced or unbalanced audio output. 1. 2. 3. 4. 5. 6. 7. Note Note 1. 2. 3. 4. Connect the required audio output from the CTU to the audio input port on the test set. Connect the RF output from the test set to the Rx input on the rear panel. Set up the test set to measure the SINAD level. Set the RF signal generator to the correct RF frequency, modulated with a 1kHz audio tone at 60% of full system deviation. Set the RF output level to -70dBm. Verify that the receiver gate opens and the busy LED turns on. Reduce the RF level until 12dB SINAD is obtained. This level will vary depending on the bandwidth and frequency response of the channel. Consult the specifications manual for val-
ues. If the mute closes before 12dB SINAD is reached then squelch override may be programmed to a function key. Pressing this key will prevent the mute from closing. Connect a voltmeter to the RSSI test point on the CTU. Set the RF signal generator to the correct RF frequency. Set the RF level to -100dBm. Verify the RSSI voltage is 1.1V300mV. Note If necessary adjust the RF level from 50dBm to 115dBm and verify that the RSSI voltage changes at 25mV/dB. RSSI Level Mute Thresholds The mute thresholds can be measured using either the balanced or unbalanced output. 1. 2. Connect the required audio output from the CTU to the audio input port on the test set. Set up the test set to measure the SINAD level. 84 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 3. 4. 5. 6. 7. 8. Note Note Set the RF signal generator to the correct RF frequency, modulated with a 1kHz audio tone at 60% of full system deviation. Set the RF output level to 70dBm. Verify that the receiver gate opens and the busy LED turns on. Reduce the RF level until the mute closes. This RF level is the mute close threshold. Increase the RF level until the mute opens. This RF level is the mute open threshold. The difference between these two levels is the mute hysteresis. The mute thresholds are determined by the squelch setting pro-
grammed in the receivers channel table. If the thresholds are not suitable use the calibration application to change the squelch setting on the channel table. Distortion The Rx Distortion can be measured using either the balanced or unbalanced output. Note Before beginning this test verify the test set is rated to handle the transmit power being tested. 1. 2. 3. 4. 5. Connect the required audio output from the CTU to the audio input port on the test set. Set up the test set to measure the distortion level. Set the RF signal generator to the correct RF frequency, modulated with a 1kHz audio tone at 60% of full system deviation. Set the RF output level to 70dBm. The measured distortion level should be within the receiver specifications as detailed in the specifications manual. 7.3.8 Transmitter Audio Level Adjustment Balanced Line 1. 2. 3. 4. Set up the test set to measure the transmitter modulation level. Connect the CTU line input to the audio output port on the test set. Set up the test set audio output to be 1kHz at the required line level
(typically 10dBm). Activate the Tx Key switch and verify that the transmission is at the programmed power and frequency. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 85 Unbalanced Line 5. 1. 2. 3. 4. 5. Adjust RV500 (BAL IN) on the rear panel to the required deviation
(typically 60% of full system deviation). Set up the test set to measure the transmitter modulation level. Connect the CTU unbalanced input to the audio output port on the test set. Set up the test set audio output to be 1kHz at the required line level
(typically 1Vp-p). Activate the Tx Key switch and verify that the transmission is at the programmed power level and frequency. Adjust RV501 (UNBAL IN) on the rear panel to the required deviation (typically 60% of full system deviation). 7.3.9 Transmitter Functional Testing This section describes how to test some parameters commonly found on RF channel test sheets. Tx Power and Frequency 1. 2. 3. Set up the test set to measure frequency and power level. Activate the Tx Key switch on the CTU. Verify that the measured power level and frequency match the programmed settings, within the expected accuracy of the test set and taking into account cable losses. Note If the measured value does not agree with the programmed set-
tings, the transmitter module is either faulty or needs recalibrating. Audio Distortion When measuring the transmitter audio distortion, the audio input signal can be via either the balanced or unbalanced audio input. 1. 2. 3. 4. 5. Connect the audio output from the test set to the required CTU audio input. Set up the modulation analyser in the test set to measure the distortion of the modulated audio signal. Set up the test set audio generator output to be 1kHz and at the level required to produce 60% full system deviation (this is the same level used in the audio level adjustment section). Activate the Tx Key switch and verify that the measured deviation is 60% of full system deviation. The measured distortion level should be within the transmitter specifications as detailed in the specifications manual. 86 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Note If the measured value does not agree with the programmed set-
tings, the transmitter module is either faulty or needs recalibrating. Maximum Deviation When measuring the maximum deviation, the audio input signal can be via either the balanced or unbalanced audio input. If CTCSS is to be added, this should be done before carrying out this test. Refer to Enabling Subaudible Signalling on page 115 for instructions. 1. 2. 3. 4. 5. 6. Set up the test set to measure the deviation of the RF signal. Connect the audio output from the test set to the required CTU audio input. Set up the test set audio generator output to be 1kHz and at the required level to produce 60% full system deviation (this is the level used in the audio level adjustment section). Activate the Tx Key switch and verify that the measured deviation is 60% of full system deviation. Increase the test set audio generator output level by 20dB and sweep the audio frequency from 100Hz to 4kHz. The maximum measured deviation level should not exceed the full system deviation programmed for the channel. Note If the measured value exceeds the programmed settings, the trans-
mitter module is either faulty or needs recalibrating. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 87 7.4 Talk Through Repeater Once the base station has been set up and tested as a line-controlled base, it is simple to convert it into a talk through repeater. In this mode of operation the received audio and receiver gate from the receiver module are looped back to the transmitter. Figure 7.3 Talk through repeater RF In RF Out Receiver Transmitter i o d u A x R t e a G x R y e K x T i o d u A x T System Interface 7.4.1 Test Equipment Required The following test equipment is used to setup the base station for talk through repeater operation:
PC, programming cables and the TB7100 programming application digital voltmeter DC power supply RF test set with:
RF power meter modulation analyser RF signal generator sinad meter audio distortion meter audio level meter audio signal generator. 88 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.4.2 Test Equipment Setup 1. 2. 3. 4. Connect the PC to the programming port on the front panel of the base station. See Connecting to the PC on page 105. Connect the receiver N-type connector to the RF test set (signal generator) output port. Connect the transmitter N-type connector to the RF test set (power and modulation meter) input port, check the test set is rated for the transmit power of the base station. Connect the 13.8V power supply to the DC input on the base station, ensuring correct polarity. 7.4.3 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the following links on the SI board. Links of the mandatory settings must be in the position indicated. Links of the optional settings must be in one of the positions listed. The defaults are generally recommended. Replace the cover as detailed in Final Reassembly on page 63. Table 7.3 Talk through repeatermandatory settings LINK Name Pins Position Function Comments J400 J502 J503 Tx Key Source Tx Audio Source Rx Audio Destination W401 W402 TOI 9V Enable TOI 4.5V Enable 3 3 3 2 2 2-3 2-3 1-2 Not fitted Talk Through Repeater mode Receiver gate keys transmitter Talk Through Repeater mode Transmitter audio taken from the receiver Talk Through Repeater mode Tone on Idle disable Received audio to the transmitter Tone on idle not used in repeater configuration Table 7.4 Talk through repeateroptional settings LINK Name Pins Position Function Comments J507 Line In Destination J206 Fan Control 1 J207 Fan Control 2 3 3 3 1-2 2-3 1-2 2-3 1-2 2-3 Tx Line In to Aux Mic Tx Line In to Audio Tap In Fan controlled by J207 Fan always on Default position is 2-3 Default position is 1-2 Fan Tx key-controlled Fan temperature-controlled Default position is 2-3 TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 89 Note By default the audio frequency response will be flat. Figure 7.4 System interface link positions J500 J503 J400 J502 J501 7.4.4 Applying Power Before turning on the base station, check that:
all looms and cables at the front and rear of the base station are fitted correctly all connectors are secure the 20A fuse is fitted. Turn on the power supply and check that the base station powers up correctly:
The power LED on the user interface lights up. The LCD indicates the current channel number. 7.4.5 Programming No changes to the values programmed for line-controlled base operation are required. See Programming on page 82 for details. Note If a soft tail setting is required see later in this chapter Soft Off
(Tx Tail Time) on page 118. 90 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.4.6 Audio Level Adjustment There is no audio level adjustment necessary in repeater mode. The internal linking is designed to produce a repeater with no talk through gain. If talk through gain is required it can be implemented by linking back the audio using a DB25 connector on the system interface and setting the audio levels as required, see Alternate Talk Through Repeater Configuration on page 92 for a more detailed explanation. 7.4.7 Talk Through Repeater Functional Testing The basic operation of the base station has already been tested as a line-
controlled base. This section describes the additional functional tests required to verify that the base station is operating correctly as a repeater. Repeater Key With the test set in duplex mode:
1. 2. Set up the test set to measure the transmitter power and frequency output. Set the RF signal generator to the correct frequency for the receiver. Note If subaudible signalling has been added, also modulate the carrier with the required signal. 3. 4. Set the RF level to -70dBm. The receiver busy LED turns on and the transmitter keys up and transmits at the programmed power level and frequency. When the RF source is removed, the transmitter will stop transmitting. Talk Through With the test set in duplex mode:
1. 2. 3. Set up the test set to measure the modulation level and frequency. Set the RF signal generator to the correct frequency for the receiver. Modulate the RF carrier with a 1kHz audio tone at 60% full system deviation. Note If subaudible signalling has been added, also modulate the carrier with the required signal. 4. 5. Set the RF level to 70dBm. The receiver busy LED turns on and the transmitter keys up and transmits at the programmed power level and frequency. The transmitted signal will be the same as received. If subaudible signalling has been enabled, the required sub-tone will also be transmitted. 6. Ensure the deviation is at the desired level. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 91 7.4.8 Alternate Talk Through Repeater Configuration Audio Frequency Response When a talk through repeater is created by linking the audio path using links J502 and J503, the default frequency response is flat audio. The pre/de-
emphasis links J500 and J501 are not in the audio path and have no effect. Repeater Talk Through Gain When a talk through repeater is created by linking the audio path using links J502 and J503, the repeater will have no talk through gain. If talk through gain is required internally link the base station for line-controlled base operation. Then externally configure it to operate as a repeater by linking the following pins on a 25pin male D-range connector and plugging the connector into the system connector on the rear panel of the base station. Pins 1 to 5 4 to 8 Function Rx Line Out+ to Tx Line In+
Rx Line Out- to Tx Line In-
14 to 15 Rx Gate to Tx Key When configured as described above:
The base station will operate as a repeater. The Talk through gain can be set by adjusting the line output level and line input sensitivity RV500 (BAL IN) and RV503 (BAL OUT) on the rear panel. The pre/de emphasis links J500 and J501 can be used to set the audio frequency response. 92 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.5 RF Modem In RF modem mode the transmitter and receiver are connected to the serial interface and any data on the serial interface is transmitted. Any data received is forwarded to the PC. Figure 7.5 RF modem RF In RF Out Receiver Transmitter a t a D x R t a a D x T Serial Interface 7.5.1 Test Equipment Required The following test equipment is used to setup the base station for RF modem operation:
TBA0STU calibration test unit (CTU) which includes the CTU adaptor and CTU cable, or TBA0ST1 calibration test unit (CTU), TBB0STU-TBB CTU adaptor
(220-02068-xx) and CTU cable (219-02888-xx) PC, programming cables and the TB7100 programming application digital voltmeter DC power supply RF test set with:
RF power meter modulation analyser RF signal generator sinad meter audio distortion meter audio level meter audio signal generator TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 93 Calibration Test Unit
(CTU) The CTU is used to configure and test the base station. The same CTU is used for TB8000 and TB9000 base station equipment, so only some of the features on the CTU apply to the TB7100 base station. The CTU adaptor is plugged into the system connector of the CTU. The CTU cable is plugged into the system connector of the base station. For more information on the CTU refer to the TBA0STU/TBA0STP Calibration and Test Unit Operation Manual (MBA-00013-xx). 7.5.2 Test Equipment Setup 1. 2. 3. 4. Connect the PC to the programming port on the front panel of the base station. See Connecting to the PC on page 105. Connect the receiver N-type connector to the RF test set (signal generator) output port. Connect the transmitter N-type connector to the RF test set (power and modulation meter) input port, check the test set is rated for the transmit power of the base station. Connect the 13.8V power supply to the DC input on the base station, ensuring correct polarity. 7.5.3 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the following links on the SI board. Links of the mandatory settings must be in the position indicated. Links of the optional settings must be in one of the positions listed. The defaults are generally recommended. Replace the cover as detailed in Final Reassembly on page 63. Table 7.5 RF modemmandatory settings LINK Name Pins Position Function Comments J221 J400 RS232 Loop Back Tx Key Source 3 3 1-2 1-2 RS-232 out data connector External Tx key source Use this setting because the transmitter will automatically key up when there is data to send so should not be keyed by the receiver gate. 94 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Table 7.6 RF modemoptional settings LINK Name Pins Position Function Comments J206 Fan Control 1 J207 Fan Control 2 3 3 1-2 2-3 2-3 Fan controlled by J207 Fan always on Default position is 1-2 Fan temperature-controlled Do not use position 1-2 (Tx key-
activated fan). The transmitter will automatically key up when there is data to send. This will not activate the Tx key line and therefore will not activate the fan. Figure 7.6 System interface link positions J221 7.5.4 Applying Power Before turning on the base station, check that:
all looms and cables at the front and rear of the base station are fitted correctly all connectors are secure the 20A fuse is fitted. Turn on the power supply and check that the base station powers up correctly:
The power LED on the user interface lights up. The LCD indicates the current channel number. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 95 7.5.5 Programming Please see the line-controlled base Programming on page 82 for details on how to program the base station for RF modem operation. 7.5.6 Audio Level Adjustment In this configuration the system interface connector is not used, so it is not necessary to set the line output level or line input sensitivity. 7.5.7 Programming for FFSK Operation To program a base station for FFSK operation:
Transmitter 1. 2. 3. 4. 5. 6. Read the transmitter or start with a new transmitter data file. Use the reset to defaults command under the file menu to ensure all the mandatory and recommended settings are in their correct default states. Open the specifications form and select the correct RF band Open the channels form summary tab. Add as many channels as are required and for each channel enter the following:
transmit frequency Tx subaudible signalling value power level bandwidth. Open the channels form details tab and for each channel check the Use channel for data check box. Open the key settings form and select the required function for each function key. For example:
FN1 = Preset Channel FN2 = Preset Channel FN3 = Preset Channel FN4 = None. 7. Open the data form and in the general tab:
In the command mode section disable all check boxes. In the transparent mode section select transparent mode enabled and de-select the other check boxes. Set Power Up State to FFSK transparent mode. 8. Open the data form and in the serial communications tab:
In the serial communications setup field set the FFSK transparent 96 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Receiver mode baud rate to 1200, the Flow control to None and the data port to the required data port. Ensure hardware flow control is set to None. 9. Open the data form RF modems tab. The THSD modem settings do not apply and can be ignored. In the FFSK modem section set up the following:
Ignore CTCSS/DCS can be disabled (CTCSS/DCS is not used in this example). Enable Check Packet Length. Disable FFSK Tone Blanking. FFSK Lead-In Delay default of 500ms is suitable but can be changed. FFSK Lead-Out Delay default of 200ms is suitable but can be changed. 10. Program the transmitter 1. 2. 3. 4. 5. 6. Read the receiver or start with a new receiver data file. Use the reset to defaults command under the file menu to ensure all the mandatory and recommended settings are in their correct default states. Open the specifications form and select the correct RF band. Open the channels form summary tab. Add as many channels as are required and for each channel enter the following:
receive frequency Rx subaudible signalling value squelch setting bandwidth. Open the channels form details tab and for each channel check the use channel for data check box. Open the key settings form and select the required function for each function key. For example:
FN1 = Preset Channel (same as transmitter) FN2 = Preset Channel (same as transmitter) FN3 = Preset Channel (same as transmitter) FN4 = Monitor / Squelch override 7. Open the data form and in the general tab:
In the command mode section disable all check boxes. In the transparent mode section select transparent mode enabled and de-select the other check boxes. Set Power Up State to FFSK transparent mode. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 97 8. Open the data form and in the serial communications tab:
In the serial communications setup field set the FFSK transparent mode baud rate to 1200, the Flow control to None and the data port to the required data port. Ensure hardware flow control is set to None. 9. Open the data form RF modems tab. The THSD modem settings do not apply and can be ignored. In the FFSK modem section set up the following:
Ignore CTCSS/DCS can be disabled (CTCSS/DCS is not used in this example). Enable Check Packet Length. Disable FFSK Tone Blanking. FFSK Lead-In Delay default of 500ms is suitable but can be changed. FFSK Lead-Out Delay default of 200ms is suitable but can be changed. 10. Program the receiver. 7.5.8 Programming for THSD Operation Transmitter 1. 2. 3. 4. 5. 6. Read the transmitter or start with a new transmitter data file. Use the reset to defaults command under the file menu to ensure all the mandatory and recommended settings are in their correct default states. Open the specifications form and select the correct RF band. Open the channels form summary tab. Add as many channels as are required and for each channel enter the following:
transmit frequency Tx subaudible signalling value = Ignored in THSD Mode power level bandwidth. Open the channels form details tab and for each channel check the use channel for data check box. Open the key settings form and select the required function for each function key. For example:
FN1 = Preset Channel FN2 = Preset Channel FN3 = Preset Channel FN4 = None 98 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Receiver 7. Open the data form and in the general tab:
In the command mode section disable all check boxes. In the transparent mode section select transparent mode enabled and THSD modem enabled and de-select the ignore escape sequence check box. Set Power Up State to THSD transparent mode. 8. Open the data form and in the serial communications tab:
In the serial communications setup field set the THSD transparent mode baud rate to 9600, the Flow control to None and the data port to the required data port. Ensure hardware flow control is set to None. 9. Open the data form RF modems tab. The FFSK modem settings do not apply and can be ignored. In the THSD modem section set up the following:
Wide band modem enabled Layer 2 Protocol enabled Forward Error Correction disabled THSD Lead-in Delay default of 30ms is acceptable. 10. Program the transmitter. 1. 2. 3. 4. 5. 6. Read the receiver or start with a new receiver data file. Use the reset to defaults command under the file menu to ensure all the mandatory and recommended settings are in their correct default states. Open the specifications form and select the correct RF band. Open the channels form summary tab. Add as many channels as are required and for each channel enter the following:
receive frequency Rx subaudible signalling value = Ignored in THSD Mode squelch setting bandwidth. Open the channels form details tab and for each channel check the use channel for data check box. Open the key settings form and select the required function for each function key. For example:
FN1 = Preset Channel (same as transmitter) FN2 = Preset Channel (same as transmitter) FN3 = Preset Channel (same as transmitter) FN4 = Monitor / Squelch override. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 99 7. Open the data form and in the general tab:
In the command mode section disable all check boxes. In the transparent mode section select transparent mode enabled and THSD modem enabled and de-select the ignore escape sequence check box. Set Power Up State to THSD transparent mode. 8. Open the data form and in the serial communications tab:
In the serial communications setup field set the THSD transparent mode baud rate to 9600, the Flow control to None and the data port to the required data port. Ensure hardware flow control is set to None. 9. Open the data form RF modems tab. The FFSK modem settings do not apply and can be ignored. In the THSD modem section set up the following:
Wide band modem enabled Layer 2 Protocol enabled Forward Error Correction disabled THSD Lead-In Delay default of 30ms is acceptable. 10. Program the receiver. 7.5.9 Verification In order to verify the correct operation as an RF modem a basic functional test can be carried out by sending data between the TB7100 base station and a TM8000 mobile radio. The following equipment will be required:
DC power supply antenna for receiver input dummy load for transmitter output a PC running the terminal application connected to the serial data port on the base station with a 9-pin serial cable a second PC running the terminal application connected to a TM8000 mobile radio which has been programmed to send and receive the required data modulation (FFSK or THSD). The test setup is shown in RF modem test setup on page 101. 100 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Figure 7.7 RF modem test setup Antenna Dummy Load TM8000 Mobile Radio Terminal Application System Interface Terminal Application Transmitter Receiver PROG/MIC Tx/Rx CHANNEL POWER Tx BUSY F1 F2 F3 F4 VOLUME The correct operation of the base station as an RF modem can be verified by transferring text files between the two PCs. 7.6 Data Repeater In data repeater mode the base station will transmit all valid received data. Figure 7.8 Data repeater RF In RF Out Receiver Transmitter a t a D x R a t a D x T System Interface TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 101 7.6.1 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the following links on the SI board. Links of the mandatory settings must be in the position indicated. Links of the optional settings must be in one of the positions listed. The defaults are generally recommended. Replace the cover as detailed in Final Reassembly on page 63. Table 7.7 Data repeatermandatory settings LINK Name Pins Position Function Comments J221 J400 RS232 Loop Back Tx Key Source 3 3 2-3 1-2 RS-232 looped back External Tx key source Use this setting because the transmitter will automatically key up when there is data to send so should not be keyed by the receiver gate. Table 7.8 Data repeateroptional settings LINK Name Pins Position Function Comments J206 Fan Control 1 J207 Fan Control 2 3 3 1-2 2-3 2-3 Fan controlled by J207 Fan always on Default position is 1-2 Fan temperature-controlled Do not use position 1-2 (Tx key-
activated fan). The transmitter will automatically key up when there is data to send. This will not activate the Tx key line and therefore will not activate the fan. 102 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Figure 7.9 System interface link positions J221 J500 J503 J400 J502 J501 7.6.2 Applying Power Before turning on the base station, check that:
all looms and cables at the front and rear of the base station are fitted correctly all connectors are secure the 20A fuse is fitted. Turn on the power supply and check that the base station powers up correctly:
The power LED on the user interface lights up. The LCD indicates the current channel number. 7.6.3 Programming Please see the line-controlled base Programming on page 82 for details on how to program the base station for RF modem operation. 7.6.4 Audio Level Adjustment In this configuration the system interface connector is not used, so it is not necessary to set the line level or line Sensitivity. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 103 7.6.5 Data Repeater Functional Testing In order to verify the correct operation as a data repeater a basic functional test can be carried out. This involves sending data from one TM8000 mobile radio to another TM8000 through the TB7100 base station. The following equipment will be required:
DC power supply antenna for receiver input dummy load for transmitter output two TM8000 mobile radios capable of sending and receiving the required data format. two PCs running the terminal application. programming cables for the TM8000 mobile radios. The test set-up is shown in Figure 7.10 on page 104. The correct operation of the base station as an RF modem can be verified by transferring text files between the two PCs. Figure 7.10 Data repeater test setup TM8000 Mobile Radio Terminal Application Antenna Dummy Load Transmitter Receiver TM8000 Mobile Radio System Interface Terminal Application PROG/MIC Tx/Rx CHANNEL POWER Tx BUSY F1 F2 F3 F4 VOLUME 7.7 TaitNet Trunking The TB7100 base station can be configured to work with a T1810 or T1711 to form part of a TaitNet MPT1327 Trunking System. For more information, refer to the technical note TN-1033-AN Using the Tait TB7100 in TaitNet MPT1327 Trunked Networks available from http://support.taitworld.com. 104 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.8 Programmable Features The programmable features are applied to the transmitter and receiver modules by using the TB7100 programming application. 7.8.1 Connecting to the PC 1. Plug the TPA-SV-006 or T2000-A19 programming lead into the RS-232 serial port on a PC. Note A USB-to-RS-232 adaptor can be used if the PC does not have a built in serial port. 2. 3. Connect the TMAA20-04 adaptor cable (RJ12 socket to RJ45 plug) to the RJ12 plug on the TPA-SV-006 or T2000-A19 programming lead. Plug the RJ45 plug on the TMAA20-04 adaptor cable into the PROG/MIC connector located on the front panel of the base station. Select whether the TB7100 programming application communicates with the transmitter or receiver module by using the receiver/transmitter programming switch located on the user interface next to the PROG/MIC connector. 7.8.2 TB7100 Programming Application The TB7100 programming application allows the configuration parameters of receiver or transmitter to be read out of a module, edited and written back into the module. It is also possible the save the data files, so if a module ever needs to be replaced, the previously saved data file can be programmed into the new module. The model toolbar, indicates whether the data file is for a receiver or transmitter module. Appearance The TB7100 programming application has been optimised for mouse navigation. Most features can be easily enabled and configured using a check box or drop down list and the frequencies for each channel are simply typed into a table. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 105 Feature Menus Toolbar Function Located along the top of the screen, these allow the user to perform functions such as opening or saving data files, and reading or programming the modules. Located just below the menu bar, the toolbar allows easy access to the most commonly used menu items. Radio Model Toolbar Located just below the toolbar, this indicates whether a newly loaded file type is for a receiver or transmitter module. It also allows the required module type to be selected when a new data file is being created. Forms Tree Forms Located on the left side of the screen, the Forms Tree lists all the forms that are available for editing. Displayed beside the Forms Tree is the Active Form. The TB7100 programming application is made up of several Forms (a page of parameters). All the configuration parameters related to a particular feature are grouped together in one form. Each form is intuitively labelled and easily accessible from a Forms Tree Separate Data Files The base station has separate transmitter and receiver modules, which are independently programmed with their required settings. This means that the base station will have two data files, one for the transmitter and one for the receiver. New Data Files Existing Data Files The reset to defaults feature in the TB7100 programming application makes it easy to create a new data file. The required module type (receiver or transmitter) is selected by pressing the appropriate button on the radio model toolbar. The reset to defaults feature under the file menu is used to reset all the settings to their default states. This ensures all the mandatory and recommended settings are correct before starting to create a new data file. The customer-specific settings for the current application are entered. reset to defaults only affects the currently active radio model, so the correct radio model must be selected first. If reset to defaults is greyed out, then the settings are already in their default states. An existing data file can be read out of a transmitter or receiver module or loaded from file. The radio model toolbar in the TB7100 programming application will automatically update when a data file is loaded or read out of a module to indicate whether the file is for a receiver or transmitter module. The file can then be edited and saved or programmed back into the module. Note It is possible to read the receiver module and then the transmitter module and have both data files loaded at the same time. The radio model toolbar can then be used to toggle between the two data files.When editing is complete, it is important to ensure the receiver/transmitter programming switch position matches the currently active data file before programming the module. 106 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.8.3 Mandatory Settings The mandatory settings must not be changed from their default states or the base station will not operate correctly. The mandatory settings in the receiver module are not the same as those in the transmitter module. The reset to defaults feature in the TB7100 programming application will ensure all mandatory settings are correct for the selected module type. The mandatory settings are not locked out. It is possible to change a mandatory setting from its required state. Receiver Mandatory Settings The mandatory settings for the receiver are shown below. If these change, the receiver will no longer operate. Form Tab Item Name Data Data Data Data Basic Settings Basic Settings Basic Settings Basic Settings Basic Settings Channels Channels Channels UI Preferences UI Preferences UI Preferences Startup Startup PTT PTT PTT PTT PTT General Serial Communications Serial Communications Serial Communications Basic Network Settings Basic Network Settings Sub Audible Signalling Sub Audible Signalling Sub Audible Signalling Detailed Detailed Detailed User Interface User Interface Audible Indicators Startup Startup MIC PTT MIC PTT External PTT 1 External PTT 1 External PTT 1 Output SDMs Automatically Data_Port XON_Character XOFF_Character TX Timer Duration TX Lockout Duration CTCSS Lead Out Delay Invert Tx DCS DCS Lead Out Delay TX_Frequency TX Sig Power Confidence Tones Silent Mode Enabled Power On Mode Reset On Error PTT Priority Audio Source PTT Transmission Type PTT Priority Audio Source Setting Disabled AUX 11 13 1 250 0 Disabled 0 000.000000 none off Disabled Disabled All Disabled Power on Enabled high CH MIC none medium CH MIC TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 107 Transmitter Mandatory Settings The mandatory settings for the transmitter are shown below, if these change the transmitter will no longer operate. Form Tab Item Name Data Data Data Data Basic Settings Channels Channels Channels UI Preferences UI Preferences UI Preferences Startup Startup PTT PTT PTT PTT General Serial Communications Serial Communications Serial Communications Sub Audible Signalling Detailed Detailed Detailed User Interface User Interface Audible Indicators Startup Startup MIC PTT MIC PTT External PTT 1 External PTT 1 7.8.4 User-defined Settings Output SDMs Automatically Data_Port XON_Character XOFF_Character Invert Rx DCS RX_Frequency RX Sig Squelch Confidence Tones Silent Mode Enabled Power On Mode Reset On Error PTT Priority Audio Source PTT Priority Audio Source Setting Disabled AUX 11 13 Disabled 000.000000 none hard Disabled Disabled All Disabled Power on Enabled high CH Mic medium Audio Tap In The user-defined settings are specific to the customers application. These are the only settings that need to be changed when configuring a base station for operation. To set up a basic voice repeater or base station only the channel information needs to be entered:
frequency power level bandwidth squelch threshold sub-audible signalling. If the system is to be used for data then the data parameters also need to be set correctly:
baud rate flow control error correction. 108 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Receiver User-
defined Settings The user-defined settings for the receiver are shown below. The cells in grey denote that the value should stay as detailed because of other constraining settings. Form Tab Item Name Value Range Recommended Data Data Data Data General General Serial Communications Transparent Mode Enabled THSD_Modem_ Enabled FFSK_Transparent_ Mode_Baudrate Serial Communications THSD_Transparent_ Mode_Baudrate Basic Settings Basic Network Settings Squelch Detect Type Basic Settings Sub Audible Signalling Channels Invert Rx DCS RX_Frequency Detailed Detailed Detailed Detailed Detailed Detailed Key 1 Key 2 Key 3 Key 4 User Interface RX Sig Network Bandwidth Squelch Use_Channel_For_ Data Key Action Key Action Key Action Key Action Backlight Mode Channels Channels Channels Channels Channels Key Settings Key Settings Key Settings Key Settings UI Preferences UI Preferences PTT Enabled / Disabled Enabled Enabled / Disabled Enabled 19200 19200 1200, 2400, 4800, 9600, 14400, 19200, 28800 1200, 2400, 4800, 9600, 14400, 19200, 28800 Noise level, Signal strength Noise Level Enabled, Disabled 000.000000 999.999999 CTCSS tone OR DCS tone none 14 12.5, 20, 25 country, city, hard Enabled, Disabled 1 12.5 city Disabled Disabled 000.000000 see Key Action type see Key Action type see Key Action type see Key Action type off, activity, continuous none none none none off 5 User Interface Backlight Duration 015 MIC PTT PTT Transmission Type none, voice, data none TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 109 Transmitter User-
defined Settings The user-defined settings for the transmitter are shown below. The cells in grey denote that the value should stay as detailed because of other constraining settings Form Tab Item Name Value Range Tx Data Data General General Enabled / Disabled Enabled Enabled / Disabled Enabled Data Data Mode_Baudrate Serial Communications Serial Communications THSD_Transparent_ 1200, 2400, 4800, 9600, 14400, 19200, 28800 1200, 2400, 4800, 9600, 14400, 19200, 28800 0250 Basic Settings Basic Network Settings TX Timer Duration 0250 Basic Settings Basic Network Settings TX Lockout Duration Basic Settings Sub Audible Signalling CTCSS Lead Out Delay 01000 Basic Settings Sub Audible Signalling Basic Settings Sub Audible Signalling DCS Lead Out Delay Channels TX_Frequency Invert Tx DCS Detailed 19200 19200 0 0 0 Disabled 0 See Note 1 Transparent Mode Enabled THSD_Modem_ Enabled FFSK_Transparent_ Mode_Baudrate Detailed Detailed Detailed Detailed Detailed Key 1 Key 2 Key 3 Key 4 User Interface TX Sig Power Network Bandwidth Use_Channel_For_ Data Key Action Key Action Key Action Key Action Backlight Mode Channels Channels Channels Channels Channels Key Settings Key Settings Key Settings Key Settings UI Preferences UI Preferences PTT PTT User Interface Backlight Duration 015 MIC PTT External PTT 1 PTT Transmission Type none, voice, data PTT Transmission Type none, voice, data Enabled, Disabled 01000 000.000000 999.999999 CTCSS tone OR DCS tone none off, very low, low, high medium, high 14 12.5, 20, 25 Enabled, Disabled 1 12.5 Disabled see Key Action type see Key Action type see Key Action type see Key Action type off, activity, continuous none none none none off 5 Voice Voice 110 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Receiver Digital IO The user-defined settings for the receiver digital IO are shown below. The cells in grey denote mandatory settings. Pin Direction Label Action Active Debounce Signal State Mirrored To AUX_GPI1 Input AUX_GPI2 Input AUX_GPI3 Input AUX_GPIO4 Input AUX_GPIO5 None AUX_GPIO6 None AUX_GPIO7 Output BIN_0 BIN_1 BIN_2 BIN_4 RX_DO_1 RX_DO_2 RXGATE BCD_Pin_0 BCD_Pin_1 BCD_Pin_2 BCD_Pin_3 No Action No Action Busy Status Low Low Low Low Low Low High 10 10 10 10 None None None None None None None None None None None None None None None None None Transmitter Digital IO The user-defined settings for the transmitter digital IO are shown below. The cells in grey denote mandatory settings. Pin Direction Label Action Active Debounce Signal State Mirrored To AUX_GPI1 Input AUX_GPI2 Input AUX_GPI3 Input AUX_GPIO4 Input AUX_GPIO5 None AUX_GPIO6 None AUX_GPIO7 Input BIN_0 BIN_1 BIN_2 BIN_4 TX_DO_1 TX_DO_2 TXKEY BCD_Pin_0 BCD_Pin_1 BCD_Pin_2 BCD_Pin_3 No Action No Action External PTT 1 Low Low Low Low Low Low High 10 10 10 10 None None 2 None None None None None None None None None None None None None None Receiver Audio The user-defined settings for the receiver audio IO are shown below. The cells in grey denote mandatory settings. Rx/PTT Type Tap In Tap In Type Tap In Unmute Tap Out Tap Out Type Tap Out Unmute Rx Mic PTT EPTT1 EPTT2 None None None None A-Bypass In On PTT R4 A-Bypass In A-Bypass In A-Bypass In On PTT On PTT On PTT None None None D-Split Busy detect +
Subaud C-Bypass Out On PTT C-Bypass Out On PTT C-Bypass Out On PTT TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 111 Transmitter Audio The user-defined settings for the transmitter audio IO are shown below. The cells in grey denote mandatory settings. Rx/PTT Type Tap In Tap In Type Tap In Unmute Tap Out Tap Out Type Tap Out Unmute Rx Mic PTT EPTT1 EPTT2 None None T8 None A-Bypass In A-Bypass In A-Bypass In A-Bypass In On PTT On PTT On PTT On PTT None None None None D-Split On PTT C-Bypass Out On PTT C-Bypass Out On PTT C-Bypass Out On PTT 7.8.5 Recommended Settings Recommended settings provide system designers with an extra level of flexibility to meet a specific operational requirement. In general, recommended settings should not be changed from the recommended default value. However unlike mandatory settings, the user is permitted to make changes, providing they verify the correct operation of the enabled or modified feature. No guarantee is given that a feature will work if the recommended settings disable the feature, or if a recommended value is changed. Although the individual modules are capable of these features, they cannot be fully supported by the base station because of its two-module configuration. A few examples of features that are not fully supported by the base station are:
selcall two tone emergency mode scanning encryption (voice inversion). The reset to defaults feature in the TB7100 programming application will ensure all recommended settings are in their recommended default state. Recommended Settings Examples To explain recommended settings more clearly, two Selcall examples are given below. The first example shows that, although Selcall is not a supported feature of the base station, systems designers have much more flexibility to meet a customers requirement. Example One A customer has a requirement to remotely turn on external lighting at the base station site. Although Selcall is not a supported feature of the base station, it is likely that enabling Selcall in the receiver could meet this customers requirement. With Selcall enabled, a control status could be programmed to turn on a 112 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Programmable I/O line. This line could be connected to the lighting control circuit at the site via the system interface connector. Example Two The customer also wants an acknowledgement sent back to confirm that the command to turn on the lights was received. At first the solution would appear to be to enable Selcall auto acknowledgments. However this would not work, because the base station has separate receiver and transmitter modules. The receiver module will decode the selcall and enable the I/O line, but has no method of informing the transmitter to send back an acknowledgment. In fact the receiver module would attempt to transmit the acknowledgment itself, but would be inhibited by other mandatory settings. 7.8.6 Function Keys The base station also has four user-defined function keys on the user interface, and programmable digital input and output lines on the system connector. The tables below list the options that can be assigned to the function keys and the digital input and output lines. The grey cells can be programmed but are not recommended (see Recommended Settings on page 112). Function Key Options None Audible Indicators Volume Action Digital Output Line Backlighting Timer Backlighting Toggle Backlighting Timer / Toggle Call Cleardown Channel Preset Call Emergency Mode Encryption Group Scanning Activity Ignore Two-Tone Keypress Tones Toggle Keypress Tones Volume Low Power Transmit Monitor Monitor / Squelch Override Network Preset Calls Nuisance Delete Phone Patch Call Request / Release Preset Channel Public Address Quiet Operation Repeater Access Tone Tx Repeater Talkaround Reset Monitor Reset Monitor / Call Cleardown Silent Operation Single In-Band Tone Squelch Override Scanning / Nuisance Delete TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 113 Digital Input Line Actions No Action Toggle Stand-by Mode Power Sense (Ignition) Enter Emergency Mode Send Channel Preset Call Send Network Preset Call 1 External PTT 1 and 2 Inhibit PTT Toggle Tx RF Inhibit Decrement Channel Increment Channel Home Channel BCD Pin 0 to 4 Digital Output Line Actions No Action Busy Status Radio Transmission Status Channel Lock Status Reflect PTT Status External Alert 1 and 2 Public Address Status Serial Data Tx In Progress Reflect PTT Inhibit Status Reflect THSD Modem Status Preset Channel Mute External Audio Input Mute Audio Output Path Unmute Audio Output Path Send Mic Audio To Spkr Force Audio PA On Force Audio PA Off Simulate F1 to F4 Key Toggle F1 to F4 Key LED Toggle Alarm Mode Activate THSD Modem RTS Control (DCE) Signalling Audio Mute Status SIBT Received Monitor Status Hookswitch Status Call Setup Status Control Status Rx (Line 1 to 3) Radio Stunned F1 to F4 Key Status FFSK Data Received Status CTS Control (DCE) 114 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.9 Additional Settings The additional link settings control the following functions:
subaudible signalling CTCSS (continuous tone controlled squelch system) DCS (digital coded squelch) soft off (tx tail time) tone on idle fan operation channel ID relay polarity channel increment and decrement by function buttons CWID (carrier wave identification). Figure 7.11 System interface link positions W300 W301 W302 J401 W402 RV400 RV401 W401 J207 J222 RV200 J206 7.10 Adding Subaudible Signalling The base station is able to decode one CTCSS or DCS tone per channel. It can also generate one CTCSS or DCS tone per channel. The generated tone can be the same as the received tone or can be a different tone. 7.10.1 Enabling Subaudible Signalling Transmitter Module 1. Read the data file out of the transmitter module. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 115 Receiver Module 2. 3. 4. 1. 2. 3. 4. Open the channels form and select the required tone in the Tx Sig column. Open the Networks > Basic Settings > Subaudible Signalling tab and configure the subaudible signalling settings (the defaults are suitable for most applications). Program the new settings into the transmitter. Read the data file out of the receiver module. Open the channels table and select the required tone in the Rx Sig column. Open the Networks > Basic Settings > Subaudible Signalling tab and configure the subaudible signalling settings (the defaults are suitable for most applications). The Rx tap out point in the receiver (Programmable I/O audio tab) must be changed to R5. This means that a incoming tone/code is filtered out by the receiver. 5. Program the new settings into the receiver. 7.10.2 Testing Subaudible Signalling Tx Subaudible Signalling Deviation Before carrying out these tests, the base station must be configured as a line-
controlled base. It must also be connected to the test equipment as described in Test Equipment Setup on page 79. 1. 2. 3. 4. Set up the test set to measure the modulation level and frequency. Ensure the test set audio output is turned off, or disconnect the CTU audio input from the test set. Activate the Tx Key switch on the CTU. Verify that the measured frequency and deviation of the CTCSS match the programmed settings. Note If the measured value does not agree with the programmed set-
tings, the transmitter module is either faulty or needs recalibrating. Rx Subaudible Signalling Decode 1. 2. 3. Connect the balanced audio output from the CTU to the audio input port on the test set. Set up the test set to measure the audio level and distortion. Set the RF signal generator to the correct RF frequency, modulated with a 1kHz audio tone at 60% of full system deviation. 116 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 4. 5. 6. 7. 8. Set the RF output level to -70dBm. Verify that the busy LED on the front panel of the base station turns on but the Rx gate LED on the CTU does not turn on, and no audio output is detected from the balanced line output. Modulate the carrier with the required subaudible signalling. Verify that the Rx gate LED on the CTU turns on, and that the 1kHz audio tone is detected by the test set, and that the measured distortion level is within the receiver specifications. Turn off the subaudible signal and check that the audio output mutes again. Note If high distortion is measured, it is likely that the subaudible signal is not being filtered out. Verify that the receiver is programmed with the correct audio tap out point. 7.10.3 Multiple Subaudible Tones Method 1 Method 2 Potential Problems The base station cannot decode multiple subaudible tones on a single channel. This can be overcome by two methods:
1. 2. 1. 2. 3. 4. 1. 2. Third-party equipment is available that can be connected to the base station to perform the decoding and regeneration of multiple tones. The base station repeater can be configured to simply pass through any subaudible tone. The receiver must not be programmed with any subaudible tones in the channel table. The Rx tap out point in the receiver (Programmable I/O audio tab) must be left as the default value of R4. This means that a incoming tone/code is not filtered out by the receiver. The transmitter must be programmed not to generate any subaudible tones. The Tx Tap In point in the transmitter (Programmable I/O audio tab) must be left as the default value of T8. This means that a incoming tone/code is not filtered out by the transmitter and will be re-transmitted. The Rx gate may close before end of reverse tone burst (RTB). This means the re-transmitted RTB may be shorter than incoming RTB. A Tx tail (soft off) should be added to overcome this. There is no security for repeaters, as any on-frequency transmission will be repeated, even if it has no subaudible tone. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 117 7.11 Soft Off (Tx Tail Time) If subaudible signalling is used, a Tx tail time can be added using the Networks > Basic Settings > Subaudible Signalling tab. A lead out delay can be entered in the appropriate field. 7.11.1 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the jumper positions on the system interface to match the table below. Replace the cover as detailed in Final Reassembly on page 63. Refer to Figure 7.11 on page 115 for the link location. Table 7.9 Soft offlink settings LINK Name Pins Position Function W302 TX_Key to 2 TX_GPIO6 link Fitted Not fitted When fitted this allows two external PTT to control the transmitter; used for soft off mode Comments Default is fitted Note When link W302 is fitted, resistor R300 must be fitted. However, if subaudible signalling is not used, adding a lead out delay will have no effect. If soft off operation is still required, a Tx tail time can be created by:
1. 2. Linking AUX_GPIO6 and AUX_GPIO7 of the transmitter with link W302 on the system interface as above. Adding the following to the default Tx configuration:
AUX_GPIO6 >Direction = input AUX_GPIO6 >Action = External PTT 2 AUX_GPIO6 >Active = High AUX_GPIO6 >Debounce = 200 (or smaller if desired) External PTT (2) > Transmission Type = None. Note A maximum of 200 ms tail time can be achieved using this method. 7.12 Tone On Idle (TOI) The tone on idle provides a tone that can be used for indicating when the base station is not transmitting or receiving. The links to enable or disable the tone on idle are shown in the table below. Both links must be in for the TOI to work. 118 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.12.1 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the jumper positions on the system interface to match the table below. Replace the cover as detailed in Final Reassembly on page 63. Refer to Figure 7.11 on page 115 for the link location. Table 7.10 Ton on idle (TOI)link settings LINK Name Pins Position Function W401 TOI 9V Enable 2 Fitted Not fitted Tone on Idle enable Tone on Idle disable W402 TOI 4.5V Enable 2 Fitted Not fitted Tone on Idle oscillator enable Tone on Idle oscillator disable Comments Default is fitted Default is fitted The potentiometers for the tone on idle adjustments shown in the table below can be found on the system interface module. Refer to Figure 7.11 on page 115 for the potentiometer location. Potentiometer Function RV400 RV401 Frequency adjust level adjust TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 119 7.13 Fan Operation The fans can be made to operate in three modes:
continuous on when base station transmits on at a set temperature. The fan operation can be set as shown in the table below. 7.13.1 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the jumper positions on the system interface to match the table below. Replace the cover as detailed in Final Reassembly on page 63. Refer to Figure 7.11 on page 115 for the link location. Table 7.11 Fan operationlink settings LINK Name Pins Position Function Comments J206 Fan Control 1 J207 Fan Control 2 3 3 1-2 2-3 1-2 2-3 Fan controlled by J207 Fan always on Default position is 1-2 Fan Tx key-controlled Fan temperature-controlled Default position is 2-3 Figure 7.12 System interface link positions J221 J500 J503 J400 J502 J501 120 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 The temperature threshold is set at the factory to 40C. The potentiometer and test point to adjust the temperature threshold can be found on the system interface module. Refer to Figure 7.11 on page 115 for the location. Designator Function RV200 J222 temperature threshold adjust test point for temperature threshold When adjusting the temperature threshold the fans must be off. The temperature threshold to voltage relationship is shown in Figure 7.13 on page 121. Figure 7.13 temperature threshold to voltage relationship Celsius Temperature 90 80 70 60 50 40 30 20 10 Fahrenheit 194 176 158 140 122 104 86 68 50 0 0.92 0.98 1.04 1.10 1.16 1.22 1.28 1.34 1.40 1.46 1.52 32 Voltage Important When using THSD and the user interface PTT, the fan set-
ting should be temperature controlled or always on. This is because the user interface PTT line does not toggle the TX-key line on the system interface and the THSD is only on for short burst of time never allowing the fan time to spin up. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 121 7.14 Channel ID Channel ID can be enabled using the links as below. 7.14.1 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the jumper positions on the system interface to match the table below. Replace the cover as detailed in Final Reassembly on page 63. Refer to Figure 7.11 on page 115 for the link location. Table 7.12 Channel IDlink settings LINK Name Pins Position Function W300 W301 2 2 Fitted Not fitted Fitted Not fitted When fitted this allows both transmit and receive modules to be controlled by the same external digital IO lines, used for BCD; used with W301 When fitted this allows both transmit and receive modules to be controlled by the same external digital IO lines; used with W300 Comments Default is fitted Default is fitted Note When link W300 is fitted, resistor R304 must be fitted. When link W301 is fitted, resistor R302 must be fitted. When Tx/Rx digital input 1-4 are used for channel selection only 16 binary or 10 BCD channels are available. When Tx/Rx digital input 1-4 and another line, made from the shorting of Tx digital in/out 1 and Rx digital in/out 1 on the system interface connecter are used then a total of 32 binary or 20 BCD channels are selectable. Requires link W300 to be fitted. 122 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 7.15 Relay Polarity Relay operation can be configured to be energised when the receiver gate is active or inactive. 7.15.1 Link Settings Remove the cover as detailed in Removing the Base Station and Opening the Tray on page 54 and set the jumper positions on the system interface to match the table below. Replace the cover as detailed in Final Reassembly on page 63. Refer to Figure 7.11 on page 115 for the link location. Table 7.13 Relay polaritylink settings LINK Name Pins Position Function W401 Relay Polarity 3 Control 1-2 2-3 Energised for receiver active gate Energised for receiver inactive gate Comments Default is 1-2 7.16 Channel Increment and Decrement by Function Keys Function button one and two can be configured to increment and decrement the channels. This requires two links fitted to the rear of the user interface board, this will hard wire the F1 and F2 buttons to the increment/decrement function. It is recommended F1 & F2 have no other programmed action. This option will allow all 99 channels to be selected from the function buttons. For more information, refer to the technical note TN-1032-AN Implementing Channel Increment and Decrement on the TB7100 available from http://support.taitworld.com. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 123 7.17 Carrier Wave Identification (CWID) CWID is a morse identification feature that can be setup using the TB7100 programming application. 7.17.1 Station ID Can contain a preprogrammed station ID of up to 16 characters in length. The user may wish to prefix the letters DE before the message, meaning from. 7.17.2 Station ID 2/Message Can contain a second preprogrammed station ID or a message of up to 130 characters. 7.17.3 Tone Frequency The Morse tone frequency is programmable from 1Hz to 3000Hz in one cycle increments. FCC rules state that the frequency shall be 800Hz to 1200Hz. 7.17.4 ID Repeat Time A programmable repeat time from 1 to 99 minutes. This allows the user to program how often the ID or message is sent. Setting the output control to After PTT will cause the ID message to be sent following the last activation of the COR/COS/CTCSS, Inhibit or PTT inputs, provided the time is met that is programmed in this register. 7.17.5 Speed (Words per Minute) The speed is programmable from 1 to 99 words per minute (WPM). 7.17.6 Wait Period after Loss of COR/COS/CTCSS Input Before IDing This register allows from 1 to 99 seconds of delay before the Morse ID will transmit after COR/COS/CTCSS loss assuming the repeat interval in ID Repeat Time has expired. 7.17.7 Transmit Key-Up Delay Programmable key-up delay from 0.0 to 9.9 seconds. This allows for a front porch delay time before the ID or message is sent. This gives receiving units 124 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 with CTCSS decoders time to un-squelch before any Morse code is transmitted. 7.17.8 Transmit Time Out Time If programmed to 0 this function is off. Programming from 1 to 999 seconds will set the repeater to drop out after the number of seconds programmed in this register. The time out timer is designed to limit conversation length. 7.17.9 Transmit PTT Drop Out Time This register programs how many seconds the repeaters transmitter will stay keyed after loss of COR/COS/CTCSS input. Normally this is programmed for 2 to 7 seconds. After PTT In is detected, the ID-1 will turn on its PTT out, as long as the PTT In remains active. After loss of the PTT In, the PTT out will remain active for the programmed period of time before dropping, thus allowing another unit to answer before the repeater drops. The ID-1 must be installed in series with the PTT line (i.e. ID-1 installed at break in station PTT line) for this function to operate. 7.17.10 Output Control Setting the output Control to After PTT will cause the ID message to be sent following the last activation of the COR/COS/CTCSS, inhibit or PTT inputs, provided the time is met that is programmed in the register ID repeat time. setting the output control to continuous will cause the ID or message to be sent at the expiration of a period equal to the delay time. For example, if register ID repeat time is programmed as 10, the ID or message will be sent every 10 minutes. This will occur during a conversation if one is in progress when the timer goes off. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Preparation for Operation 125 126 Preparation for Operation TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 8 Maintenance Guide The base station is designed to be very reliable and should require little maintenance. However, performing regular checks will prolong the life of the equipment and prevent problems from happening. It is beyond the scope of this manual to list every check that you should perform on your base station. The type and frequency of maintenance checks will depend on the location and type of your system. The checks and procedures listed below can be used as a starting point for your maintenance schedule. Performance Checks We suggest you monitor the following operational parameters:
VSWR DC input voltage, especially on transmit receiver sensitivity the setting of the receiver gate opening transmit deviation These basic checks will provide an overview of how well your base station is operating. Receiver There are no special maintenance requirements for the receiver. Transmitter There are no special maintenance requirements for the transmitter. System Interface There are no special maintenance requirements for the System interface. Ventilation The base station has been designed to have a front-to-back cooling airflow. We strongly recommend that you periodically check and maintain the ventilation requirements described in Ventilation on page 46 to ensure a long life and trouble-free operation for your base station. Cooling Fans The cooling fans have a long service life and have no special maintenance requirements. Battery If you are using battery, you should check the batteries regularly in accordance with the manufacturers recommendations. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Maintenance Guide 127 128 Maintenance Guide TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Glossary A accessory active ADC air intake temperature anti-kerchunking audible indicators B backlighting This glossary contains an alphabetical list of terms and abbreviations related to the TB7100 base station. For information about trunking, mobile, or portable terms, consult the glossary provided with the relevant documentation. An accessory is an ancillary device fitted externally to a base station, such as an external microphone. Digital outputs are active when the base station pulls their voltage low and current is flowing. Digital inputs are active when external equipment is pulling them to ground. All base station digital outputs are open collector. Analog-to-Digital Converter. A device for converting an analog signal to a digital signal that represents the same information. The temperature of the air as measured at the transmitters air intake. Anti-kerchunking is a base station feature that discourages users from pinging (kerchunking) the repeater with short bursts of RF. The radios audible indicators are used in combination with visual indicators to provide feedback to the radio user. Types of audible indicators are incoming call tones, warning tones, confirmation tones, keypress confidence tones and signalling sidetones. The radios display or keypad lights up when there is activity on the radio, such as when a key is pressed or when a call is received. The value of the backlighting timer and how backlighting was activated determine how long backlighting remains on. backlighting timer The backlighting timer determines how long backlighting remains on once it is activated. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Glossary 129 balanced line A balanced line has two wires carrying equal and opposite signals. It is typically used in a line-connected base station for connecting to the despatcher console. The system interface identifies the balanced line out as Rx line output + and Rx line output -, and the balanced line in as Tx line input + and Tx line input -. base station A base station is a tray containing transmitter, receiver and system interface modules. BCD birdie birdie killer brownout C Calibration Application CCDI2 BCD (binary coded decimal) is a code in which a string of four binary digits represents a decimal number. A birdie is a desensitised channel caused by internal interference. A birdie can be eliminated by activating a birdie killer on the channel. A birdie killer is an internal circuitry switch that greatly reduces the effect of a birdie on a channel. A dip in the supply voltage sufficient to put the control section into hardware reset. The Calibration Application is a utility for calibrating various parts of the receiver and transmitter circuitry. CCDI2 (computer controlled data interface version 2) is a proprietary Tait command protocol used between computer equipment and a Tait radio. The TB7100 base station does not support CCDI2. CCI CCI (computer controlled interface) is a proprietary Tait command protocol used between computer equipment and a Tait radio. channel A channel is a frequency pair (or just a single frequency in a simplex system). Note: Different channels may have identical frequencies, while other operating parameters may be different. channel profile A channel profile is a named set of configuration items relating to the base stations RF configuration, transmitter power output and power saving modes. Like the signalling profile, it can be applied to any channel. Together, these profiles define most configuration items. channel spacing Channel spacing is the frequency difference between adjacent channels. channel table The channel table is the base stations database of channel configurations. 130 Glossary TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 city squelch When a radios noise mute threshold is programmed for city squelch, the radio is less sensitive to interference than if programmed for country squelch and so stronger signals are required for the radios speaker to unmute. City squelch is also known as local squelch. CODEC An IC which combines analog-to-digital conversion (coding) and digital-
to-analog conversion (decoding). configuration file country squelch CTCSS CTCSS/DCS filter CTU CWID D DAC data call DCS A configuration file consists of all the configuration settings needed for a base station, stored as a file in the configurations folder. Configuration files have the extension *.t7p. The TB7100 uses two files, one for the receiver and one for the transmitter. When a radios squelch threshold is programmed for country squelch, the radio is more sensitive than if programmed for city squelch and so the radios speaker unmutes more readily. When programmed for country squelch, the radio can be used in areas where the signal may be weak and where maximum range is desirable. Country squelch is also known as distant squelch. CTCSS (continuous tone controlled squelch system), also known as PL
(private line), is a type of signalling that uses subaudible tones to segregate groups of users. The CTCSS/DCS filter removes any CTCSS or DCS tones that may be present on the received audio. The filter limits the range of frequencies the radio passes from the incoming signal to the speaker and so in some situations affects signal quality. Filtering can be automatically switched off for channels that do not have CTCSS or DCS. A Calibration Test Unit (CTU) is a device used to assist in making testing and calibration of the TB7100 easier. CWID (Continuous Wave IDentification) is a method of automatically identifying the base station using a Morse code. Digital-to-Analog Converter. A device for converting a digital signal to an analog signal that represents the same information. A data call is a call or part of a call between two radio units that carries data rather than speech communications. A data call can be a status message, short data message or non-prescribed data (NPD) call. DCS (digital coded squelch), also known as DPL (digital private line), is a type of subaudible signalling used for segregating groups of users. DCS codes are identified by a three-digit octal number, which forms part of the TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Glossary 131 continuously repeating code word. When assigning DCS signalling for a channel, you specify the three-digit code. de-emphasis De-emphasis is a filtering process in the receiver that attenuates higher frequency audio. It restores pre-emphasised audio to its original relative proportions. digital signal processor The device in a radio that analyses and processes signals in the digital domain. Also known as DSP. Duplexer duty cycle E economy cycling A duplexer is a device for connecting one antenna to a transmitter and receiver at the same time. Duty cycle is used in relation to the transmitter. It is the proportion of time
(expressed as a percentage) during which the transmitter is keyed. The transmitter can be operated continuously. Economy cycling is the switching between states that occurs when economy mode is active and after there is no valid activity on a channel for a preprogrammed time (the economy mode timer). Economy cycling consists of two states, the receive state and the standby state. The amount of time the radio spends in each state is determined by the economy duty cycle. economy duty cycle The economy duty cycle is the amount of time the radio spends in the receive and standby states during economy cycling. economy mode Economy mode reduces the radios power consumption when it is idle. When economy mode is active, and there has been no valid activity on a channel for the duration of the economy mode timer, the radio begins economy cycling. economy mode timer The economy mode timer sets the time between when valid activity was last detected on a channel and the start of economy cycling. EIA EMC ETSI Electronic Industries Alliance. Accredited by the American National Standards Institute (ANSI) and responsible for developing telecommunications and electronics standards in the USA. Electromagnetic Compatibility. The ability of equipment to operate in its electromagnetic environment without creating interference with other devices or being susceptible to disturbance in the presence of other equipment. European Telecommunications Standards Institute. The non-profit organisation responsible for producing European telecommunications standards. 132 Glossary TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 F FFSK FFSK (fast frequency shift keying). In Trunking applications this is the method by which code words are sent over the control channel. In 1200 baud FFSK, a 1200 Hz tone represents a zero and an 1800 Hz tone represents a one. frequency band The range of frequencies that the equipment is capable of operating on. front panel The part of the chassis that has the user interface on it. Full Duplex Full duplex is the action of receiving and transmitting at the same time. function key A function key is a key on a radio or radio accessory that can have functions assigned to it. G gating GPIO H hysteresis I inactive indicator Gating is the process of opening and closing the receiver audio path. When a valid signal is received, the receiver audio path opens. General Purpose Input Output (GPIO) lines are used on the TB7100 to configure it for different modes. Hysteresis is the difference between the upper and lower trigger points. For example, the receiver gate opens when the upper trigger point is reached, but will not close until the level falls to the lower trigger point. An adequate hysteresis prevents the receiver gate from repeatedly opening and closing when the level is about that of the trigger point. Digital outputs are inactive if the base station is doing nothing to them. They are floating, open collector outputs. Digital inputs are inactive when they are open circuit. Indicators provide feedback to the radio user on how the current operation is proceeding and on the operating state of the radio. For example, keypress confidence tones are the tones heard when a keypad key or a function key is pressed and tell the user that an action is permitted. Tait radios use combinations of audible indicators and visual indicators. inhibit Prevents the radio state changing. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Glossary 133 isolator K kerchunking An isolator is a passive two-port device which transmits power in one direction, and absorbs power in the other direction. It is used in a PA to prevent damage to the RF circuitry from high reverse power, and reduces the generation of spurious product due to the ingress of signals from other transmitters. Kerchunking is transmitting for a second or less without saying anything in order to test the base station. This results in a kerchunk sound. keypress confidence tone A keypress confidence tone is a type of audible indicators given each time the user presses a key to confirm that the action selected is valid. L LCD A Liquid Crystal Display (LCD) is used on the TB7100 user interface to display channel number. line-controlled base station A TB7100 is a line-controlled base station when it receives audio (sending it out via its systems interface), transmits audio received over its systems interface, and its transmitter is keyed via the Tx Key line. local squelch See city squelch. M Mandatory Settings mute N noise mute The mandatory settings are settings in the programming application that must not be changed from their default states or the TB7100 will not operate correctly. The Mandatory Settings in the receiver module are not the same as those in the transmitter module. A mute controls the circumstances under which a received signal is passed to the radios audio output. When a mute is active, the radios speaker audio path opens under certain conditions, determined by the type of signalling operating on a channel and the noise mute threshold. The noise mute feature ensures that the radios speaker only unmutes when an intelligible signal is received. A signal is considered intelligible when it is strong enough to exceed a predetermined noise mute threshold. noise mute threshold The noise mute threshold is the level the signal must reach before it is regarded as intelligible and the radios mute is opened. 134 Glossary TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 0 operating range Operating range is another term for switching range. P PA The PA (power amplifier) is a part of the transmitter that boosts the exciter output to a certain level sufficient to transmit via the antenna. power down Radio is switched off. power up Radio is switched on. pre-emphasis Pre-emphasis is a process in the transmitter that boosts higher audio frequencies. programming manipulating calibration database, radio database. Programming Application programming database The programming application is used to create configuration files for the base station. The programming application can read files from the base station or load new files onto the base station. The programming database is the information that is altered using the radio programming application. For trunked radios, each programming database consists of separate network, fleet and radio information. programming mode The mode of operation of the radio in which computer equipment can read from and write to the radio database. Q quiet operation When quiet operation is active, all audible indicators except incoming call alerts, sidetones and warning tones are disabled. Contrast with silent operation. quiet state The quiet state is the state the radio is in when monitor is inactive the radio user does not have to listen to traffic that is not intended for them. R Recommended Settings Recommended settings are settings in the programming application that should not be changed from the recommended default value, but unlike mandatory settings, the user is permitted to make changes; providing they verify the correct operation of the enabled or modified feature. No guarantee is given that a feature will work if the recommended settings disable the feature or if a recommended value is changed. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Glossary 135 repeater receive (Rx) frequency reverse tone burst RF RSSI Rx S sensitivity SINAD subaudible signalling A repeater receives a radio signal and re-transmits it. Use of a repeater increases the coverage area of a two-way radio system and ensures more reliable performance in areas where signals are reflected or attenuated by buildings or terrain. In a repeater-based system, the radios transmit frequency is the frequency the repeater is listening on, and the radios receive frequency is the frequency the repeater re-broadcasts signals on. The receive frequency is the frequency that a radio is currently tuned to. Reverse tone bursts (RTB) can be used with CTCSS. When reverse tone bursts are enabled, the phase of the generated tones is reversed for a number of cycles just before transmission ceases. If the receiver is configured for reverse tone burst, it responds by closing its gate faster than if the RTB were not transmitted. RF stands for radio frequency and refers to the part of the electromagnetic spectrum used to transmit radio and television signals. RSSI (Received Signal Strength Indicator) feature that indicates the strength of the received signal. Rx is an abbreviation for receive or receiver. The sensitivity of a radio receiver is the minimum input signal strength required to provide a useable output. SINAD (Signal plus Noise and Distortion) is a measure of signal quality. It is the ratio of (signal + noise + distortion) to (noise + distortion). A SINAD of 12dB corresponds to a signal to noise voltage ratio of 4:1. Subaudible signalling is signalling that is at the bottom end of the range of audible frequencies. The base station supports CTCSS and DCS subaudible signalling. subtone A subtone (subaudible signalling tone) is a CTCSS tone or a DCS code. switching range The switching range is the range of frequencies that the equipment is tuned to operate on. system interface The system interface is the set of inputs to and outputs from the base station
(excluding RF), provided by a module inside the tray. 136 Glossary TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 T TB7100 Base Station A TB7100 base station consists of the equipment necessary to receive and transmit on one channel. Generally, this means receiver, transmitter and system interface modules. Often abbreviated to TB7100 or base station. TCXO Talk Through Repeater THSD toggle TOI Temperature compensated crystal oscillator (voltage controlled). The frequency reference for the RF part of the radio. A TB7100 is a talk through repeater when its audio path is configured to pass the audio it receives on to the transmitter, and its receiver gate signal is configured to key the transmitter. Tait High Speed Data (THSD) is a proprietary data protocol. THSD uses a four level frequency shift keying modulation scheme. The term toggle is used to describe the switching between two states. Tone On Idle (TOI) is an audio tone used on the receiver output to indicate when the base station is idle. transmit (Tx) frequency The transmit frequency is the frequency that all outgoing transmissions are made on. transmit inhibit The transmit inhibit feature determines under what conditions a transmission request does not result in the radio transmitting. transmit lockout The transmit lockout feature prevents the base station from transmitting for a time once the transmit timer has expired. Tx Tx is an abbreviation for transmit or transmitter. TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Glossary 137 U unbalanced line An unbalanced line has one wire earthed. It is typically used for short connections, for example, between a base station and a repeater on the same site. The system interface identifies the wires of unbalanced lines with Rx audio output, Tx audio input, and Ground. User Defined Settings The User Defined Settings are settings in the programming application that are specific to the customers application. These are the only settings that need to be changed when configuring a TB7100 for operation. user interface The user interface panel is an area at the front of the base station with buttons, LEDs and other controls that let you interact with the base station. V valid signal A valid signal is a signal that the receiver responds to by opening the receiver gate. A signal is valid for example when it is stronger than a minimum level and when it has the specified subtone. visual indicator The term visual indicator refers to a visual cue the radio gives to provide feedback to the user. Visual indicators are used in combination with audible indicators. Visual indicators include LEDs and LCD display text. VSWR W Watchdog Voltage Standing Wave Ratio (VSWR) is the ratio of the maximum peak voltage anywhere on the line to the minimum value anywhere on the line. A perfectly matched line has a VSWR of 1:1. A high ratio indicates that the antenna subsystem is poorly matched. A watchdog circuit checks that the system is still responding. If the system does not respond (because the firmware has locked up), the circuit resets the system. 138 Glossary TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Tait General Software Licence Agreement This legal document is an Agreement between you (the Licensee) and Tait Electronics Limited (Tait). By using any of the Software or Firmware items prior-installed in the related Tait product, included on CD or downloaded from the Tait website,
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(INCLUDING OPEN SOURCE COMPONENTS) WILL BE UNINTERRUPTED OR ERROR FREE. Exclusion of Liability IN NO CIRCUMSTANCES SHALL TAIT BE UNDER ANY LIABILITY TO THE LICENSEE, OR ANY OTHER PERSON WHATSOEVER, WHETHER IN TORT (INCLUDING NEGLIGENCE), CONTRACT
(EXCEPT AS EXPRESSLY PROVIDED IN THIS AGREEMENT), EQUITY, UNDER ANY STATUTE, OR OTHERWISE AT LAW FOR ANY LOSSES OR DAMAGES WHETHER GENERAL, SPECIAL, EXEMPLARY, PUNITIVE, DIRECT, INDIRECT OR CONSEQUENTIAL ARISING OUT OF OR IN CONNECTION WITH ANY USE OR INABILITY OF USING THE SOFTWARE OR FIRMWARE
(INCLUDING OPEN SOURCE COMPONENTS). THE LICENSEES SOLE REMEDY AGAINST TAIT WILL BE LIMITED TO BREACH OF CONTRACT AND TAITS SOLE AND TOTAL LIABILITY FOR ANY SUCH CLAIM SHALL BE LIMITED AT THE OPTION OF TAIT TO THE REPAIR OR REPLACEMENT OF THE SOFTWARE OR FIRMWARE OR THE REFUND OF THE PURCHASE PRICE OF THE SOFTWARE OR FIRMWARE. General THE LICENSEE CONFIRMS THAT IT SHALL COMPLY WITH THE PROVISIONS OF LAW IN RELATION TO THE SOFTWARE OR FIRMWARE. 140 TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 Directive 1999/5/EC Declaration of Conformity Dansk da Undertegnede Tait Electronics Limited erklrer herved, at flgende udstyr TBBA4A, TBBB1A
& TBBH5A overholder de vsentlige krav og vrige relevante krav i direktiv 1999/5/EF. Se endvidere: http://eudocs.taitworld.com/
Deutsch de Hiermit erklrt Tait Electronics Limited die bereinstimmung des Gertes TBBA4A, TBBB1A & TBBH5A mit den grundlegenden Anforderungen und den anderen relevanten Festlegungen der Richtlinie 1999/5/EG. Siehe auch: http://eudocs.taitworld.com/
el Tait Electronics Limited TBBA4A, TBBB1A & TBBH5A
1999/5/.
: http://eudocs.taitworld.com/
English en Tait Electronics Limited declares that this TBBA4A, TBBB1A & TBBH5A complies with the essential requirements and other relevant provisions of Directive 1999/5/EC. See also: http://eudocs.taitworld.com/
Espaol es Por medio de la presente Tait Electronics Limited declara que el TBBA4A, el TBBB1A y el TBBH5A cumplen con los requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la Directiva 1999/5/CE. Vea tambin: http://eudocs.taitworld.com/
Suomi fi Tait Electronics Limited vakuuttaa tten ett TBBA4A, TBBB1A & TBBH5A tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sit koskevien direktiivin muiden ehtojen mukainen. Katso: http://eudocs.taitworld.com/
Franais fr Par la prsente, Tait Electronics Limited dclare que l'appareil TBBA4A, TBBB1A & TBBH5A est conforme aux exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE. Voir aussi: http://eudocs.taitworld.com/
Italiano it Con la presente Tait Electronics Limited dichiara che questo TBBA4A, TBBB1A & TBBH5A conforme ai requisiti essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE. Vedi anche: http://eudocs.taitworld.com/
Nederlands nl Hierbij verklaart Tait Electronics Limited dat het toestel TBBA4A, TBBB1A & TBBH5A in overeenstemming is met de essentile eisen en de andere relevante bepalingen van richtlijn 1999/
5/ EG. Zie ook: http://eudocs.taitworld.com/
Portugus pt Tait Electronics Limited declara que este TBBA4A, TBBB1A & TBBH5A est conforme com os requisitos essenciais e outras provises da Directiva 1999/5/CE. Veja tambm: http://eudocs.taitworld.com/
Svensk sv Hrmed intygar Tait Electronics Limited att denna TBBA4A, TBBB1A & TBBH5A str I verensstmmelse med de vsentliga egenskapskrav och vriga relevanta bestmmelser som framgr av direktiv 1999/5/
EG. Se ven: http://eudocs.taitworld.com/
TB7100 Installation and Operation Manual Tait Electronics Limited December 2005 141 142 TB7100 Installation and Operation Manual Tait Electronics Limited December 2005
| frequency | equipment class | purpose | ||
|---|---|---|---|---|
| 1 | 2007-06-27 | 450 ~ 530 | TNB - Licensed Non-Broadcast Station Transmitter | Original Equipment |
| app s | Applicant Information | |||||
|---|---|---|---|---|---|---|
| 1 | Effective |
2007-06-27
|
||||
| 1 | Applicant's complete, legal business name |
Tait International Limited
|
||||
| 1 | FCC Registration Number (FRN) |
0003768611
|
||||
| 1 | Physical Address |
245 Wooldridge Road
|
||||
| 1 |
1645
|
|||||
| 1 |
Christchurch, N/A 8051
|
|||||
| 1 |
New Zealand
|
|||||
| app s | TCB Information | |||||
| 1 | TCB Application Email Address |
d******@elitetest.com
|
||||
| 1 | TCB Scope |
B2: General Mobile Radio And Broadcast Services equipment in the following 47 CFR Parts 22 (non-cellular) 73, 74, 90, 95, 97, & 101 (all below 3 GHz)
|
||||
| app s | FCC ID | |||||
| 1 | Grantee Code |
CAS
|
||||
| 1 | Equipment Product Code |
TBBH6A
|
||||
| app s | Person at the applicant's address to receive grant or for contact | |||||
| 1 | Name |
B****** E****
|
||||
| 1 | Title |
Standards and Regulatory Manager
|
||||
| 1 | Telephone Number |
64 3 ********
|
||||
| 1 | Fax Number |
n********
|
||||
| 1 |
b******@taitradio.com
|
|||||
| app s | Technical Contact | |||||
| n/a | ||||||
| app s | Non Technical Contact | |||||
| n/a | ||||||
| app s | Confidentiality (long or short term) | |||||
| 1 | Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | Yes | ||||
| 1 | Long-Term Confidentiality Does this application include a request for confidentiality for any portion(s) of the data contained in this application pursuant to 47 CFR § 0.459 of the Commission Rules?: | No | ||||
| if no date is supplied, the release date will be set to 45 calendar days past the date of grant. | ||||||
| app s | Cognitive Radio & Software Defined Radio, Class, etc | |||||
| 1 | Is this application for software defined/cognitive radio authorization? | No | ||||
| 1 | Equipment Class | TNB - Licensed Non-Broadcast Station Transmitter | ||||
| 1 | Description of product as it is marketed: (NOTE: This text will appear below the equipment class on the grant) | Base Station Transceiver | ||||
| 1 | Related OET KnowledgeDataBase Inquiry: Is there a KDB inquiry associated with this application? | No | ||||
| 1 | Modular Equipment Type | Does not apply | ||||
| 1 | Purpose / Application is for | Original Equipment | ||||
| 1 | Composite Equipment: Is the equipment in this application a composite device subject to an additional equipment authorization? | No | ||||
| 1 | Related Equipment: Is the equipment in this application part of a system that operates with, or is marketed with, another device that requires an equipment authorization? | No | ||||
| 1 | Grant Comments | Power listed is conducted. The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter End-users must be provided with specific operating instructions for satisfying RF exposure compliance requirements. | ||||
| 1 | Is there an equipment authorization waiver associated with this application? | No | ||||
| 1 | If there is an equipment authorization waiver associated with this application, has the associated waiver been approved and all information uploaded? | No | ||||
| app s | Test Firm Name and Contact Information | |||||
| n/a | ||||||
| Equipment Specifications | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Line | Rule Parts | Grant Notes | Lower Frequency | Upper Frequency | Power Output | Tolerance | Emission Designator | Microprocessor Number | |||||||||||||||||||||||||||||||||
| 1 | 1 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 11K0F3E | |||||||||||||||||||||||||||||||||
| 1 | 2 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 16K0F3E | |||||||||||||||||||||||||||||||||
| 1 | 3 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 6K60F2D | |||||||||||||||||||||||||||||||||
| 1 | 4 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 7K80F2D | |||||||||||||||||||||||||||||||||
| 1 | 5 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 9K60F2D | |||||||||||||||||||||||||||||||||
| 1 | 6 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 10K8F2D | |||||||||||||||||||||||||||||||||
| 1 | 7 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 7K70F1D | |||||||||||||||||||||||||||||||||
| 1 | 8 | 22,9 | BC | 450 | 530 | 25 | 1.5 ppm | 12K0F1D | |||||||||||||||||||||||||||||||||
some individual PII (Personally Identifiable Information) available on the public forms may be redacted, original source may include additional details
This product uses the FCC Data API but is not endorsed or certified by the FCC