Table of Contents Introduction .................................................................................................................................................. 3 1. Radio Modem MR400 ............................................................................................................................. 4 Radio Part MR400 ......................................................................................................................................... 5 Modem Part ............................................................................................................................................ 5 3. MR 400 Connectors ...................................................................................................................................... 6 Antenna .................................................................................................................................................... 6 Serial Interface ....................................................................................................................................... 6 RS232, RS422 and RS485 Connectors..................................................................................... 6 Distinguishing Data Modules by Colour .......................................................................................... 6 Ethernet .................................................................................................................................................... 7 Analog and Binary Inputs and Outputs .......................................................................................... 7 Labelling ........................................................................................................................................... 7 Parameters ..................................................................................................................................... 7 Supply Connector ....................................................................................................................................... 8 Information LED .................................................................................................................................. 8 Service Connector ................................................................................................................................ 9 4. Table of Technical Parameters .............................................................................................................. 10 5. Dimensional Diagram .............................................................................................................................. 11 6. Labelling Radio Modems ....................................................................................................................... 12 7. Conditions for MR400 Operation ............................................................................................................ 13 Radio modem instalation and maintenence ................................................................................................ 13 Conditions of Liability for Defects and Instructions for Safe Operation of Equipment ............................ 14 Declaration of Conformity ......................................................................................................................... 15 Limitations of Use ...................................................................................................................................... 16 List of Figures 1. Radio modem MR400 .............................................................................................................................. 3 3.1. Service connector connections .......................................................................................................... 9 3.2. View of radio modem description of connectors, model with DSUB (Canon) connectors and with terminals .................................................................................................................... 10 5.1. Mechanical dimensions of MR400 .................................................................................................. 12 6.1. Serial codes of products ....................................................................................................................... 13 List of Tables 3.1. Table of data cable connections ........................................................................................................ 7 3.2. Table for distinguishing LEDs for RxD and TxD by colour ....................................................... 7 3.3. Table of Ethernet to cable connector connections ....................................................................... 8 3.4. Table of digital and analog input and output parameters ........................................................... 8 3.5. Table of service connector connections .......................................................................................... 9 4.1. Table of technical parameters ............................................................................................................. 13 Introduction This operator manual serves as the primary document for familiarising users with the parameters of the radio modem, its properties, modifications and with the parameters of interfaces. In order to master all the functions of the radio modem and the MORSE system you should refer to other documents. Figure 1. Radio modem MR400 (MR300, MR160) 3 1. Radio Modem MR400 (MR300, MR160) MR 400, MR300 and MR160 are conceptually new radio modems designed for transmitting data in the VHF and UHF bands. The radio modem uses 4-state FSK modulation providing for a maximum signalling rate of 21.68 kbit/s. The radio modem is of modular design with one to four standard RS232 ports (an RS422 or RS485 port can be used in place of two of them) available to the user. The configuration can be extended by an Ethernet interface and also by a module with analog and digital inputs/outputs, which is normally provides two analog inputs and outputs and two digital inputs and outputs. The radio data transceiver module can be configured to an arbitrary frequency of the transmitter and receiver within the 3.2 MHz frequency range in a 12.5 kHz channel raster. The receiving and transmitting frequencies are mutually independent and are derived from the frequencies of four Phase-Locked Loops programmed by the transceiver microprocessor. Channel settings are stored in the transceiver EEPROM memory and the FLASH memory module of the modem whose central processor controls the operation of the transceiver microprocessor. The RF output power of the radiomodem transmitters high frequency signal is software-configurable in sixteen steps from 0.1 to 5 W. The software configuration of MR400 is backward compatible with that of the MR25 radio modem. A description of software control and configuration of the MR25 is available in publications describing MORSE Firmware. Important ATTENTION! The radio modem is equipment which can only be operated in the Czech Republic on the basis of Permission to operate transmitting radio stations issued by the Department of Frequency Spectrum Management at the Czech Telecommunication Office. 4 2. Description of Functions Radio Part MR400 The architecture of MR400 (MR300, MR160) radio modems resolves most of the requirements placed on a top quality user friendly radio modem with a very short switching time between receiving and transmitting. Frequency synthesis enables software selection of an arbitrary channel from the given frequency range. The operation of the radio part is controlled and diagnosed by the microcontroller. The receiving part of the radio modem is a double-conversion superheterodyne. The overall selectivity is divided between both intermediate frequency levels. The first filter carries out the necessary channel pre-selection which ensures the linear function of the following second mixer and intermediate frequency amplifier. The second filter has the attenuation characteristic necessary for channel selection in the used channel spacing of 25 kHz (12.5 kHz). Logic circuits, switching the radio part between modes of receiving and transmitting, have high noise immunity and switch respective blocks sequentially. This minimises transient parasite states and optimises bandwidth during switching. Switching to the transmitting mode is blocked when the frequency synthesiser is out of lock or the internal temperature exceeds a hardware set limit or the supply voltage falls below the value ensuring proper functioning of the device. Modem Part The control microcomputer has 4 MB of FLASH memory and 16 MB of RAM memory available. The battery backup-ed real-time clock, detector of supply voltage failure and watch-dog circuits belong amongst the other circuits of this block. If there is a supply voltage failure the fact is recorded into memory with the respective timestamp thanks to the charge stored in electrolytic capacitors. The user therefore has information available about the time and duration of possible faults caused by power failures. It is possible to connect equipment with signalling rates up to 115.2 kbit/s to the modem via the RS232 data interface. RS232 interface converters are protected against overvoltage with TRANSIL elements. A lithium battery is used for backing up in the modem part. Important warning a risk of explosion!
The lithium battery must not be replaced by an incorrect type. When in doubt, leave the replacement to the manufacturer. 5 3. MR 400 Connectors Antenna The antenna connector is of the N type, female, impedance 50 Ohm. The antenna cable must be fitted with an appropriate mate. We recommend using the RG213 50 Ohm cable. The H1000 cable should be used when the length of the antenna feeder exceeds 25 m. Important CAUTION. The radio modem should be powered only when the antenna (or artifical load) is connected. Otherwise it could lead to damage to the radio part of the modem. Serial Interface According to the configuration of the radio modem it is possible to use a terminal block or DSUB 9 (Canon) connectors for connecting data cables via the serial interface. See Chapter 6 Labelling radio modems. RS232, RS422 and RS485 Connectors Table 3.1. Table of data cable connections Terminals 1 2 3 4 5 RS232 CTS RTS RxD TxD GND DSUB9F 8 7 2 3 5 RS422 TxD-
TxD+
RxD-
RxD+
GND Canon RS422 7 3 8 2 5 When RS485 interface is needed, the RS422 pin layout applies. It is necessary to shortcut TxD- to RxD- and Txd+ to RxD+ to obtain the respective Data-, Data+ RS485 signals. Distinguishing Data Modules by Colour For RS232 RxD is the output from the radio modem (approx. -8V when inactive) and TxD is the input to the radio modem (according to the RS 232 standard). Hardware versions of the interface can be distinguished according to the colours of LED diodes next to the connector. Table 3.2. Table for distinguishing LEDs for RxD and TxD by colour Type of interface RS232 RS232 optically coupled RS422/485 optically coupled Colour (RxD / TxD) red / green orange / green orange / yellow 6 Ethernet Connector RJ-45 for Ethernet 10BaseT and 100BaseT corresponds to the EIA TIA T568B standard. Informative LED diodes indicate: Tx output from CU Rx input to CU 100 if lit the 100BaseT LINK network is indicated indicates correctly connected F.D. link indicates full duplex operation. A straight cable is needed for connecting to the Ethernet network via the hub (repeater) or switch-hub (router). A crossed cable is mostly used when just two devices are connected back-to-back. E.g. MR400 to MC100, MR400 to a PC, etc. The following table contains connector connections and colours of conductors. For the crossed cable the order of conductors on one side is the same as for the direct cable. Table 3.3. Table of Ethernet to cable connector connections. PIN 1 2 3 4 5 6 7 8 Signal TX+
TX-
RX+
Rx-
Direct cable white - orange orange white - green blue white - blue green white - brown brown Crossed cable white - green white - orange green blue white - blue orange white - brown brown Analog and Binary Inputs and Outputs Labelling Individual terminals of terminal blocks are labelled:
Connector A OUT Connector A IN Connector D OUT Connector D IN
- analog outputs
- analog inputs
- digital outputs
- digital inputs From left to right: 1. input / output + 1. input / output - 0. input /
output + 0. input / output
- Terminal UP From left to right: + - if a voltage of +2.4 to 15 V is brought to this terminal the radio modem activates, firmware carries out the pre-programmed step according to settings in configuration (wake up from sleep mode). Sleep mode is resolved by individual SW settings GND. Parameters Table 3.4. Table of digital and analog input and output parameters 2 optically coupled digital output Passive Bipolar solid state switch
(max. 30 V/500 mA) 2.4 15 V log. 1 0 2.4 V log. 0 0 20 mA Rz max = 250 Ohm 0 20 mA/4 20 mA SW switchable (input impedance 60 Ohm) Passive Passive Passive 2 optically coupled digital input 2 optically coupled analog output 2 optically coupled analog input Analog inputs 0 and 1 have connected terminals - (minus), which are galvanically isolated from the modem GND. Analog outputs 0 and 1 have connected terminals - (minus), which are galvanically isolated from the modem GND. Supply Connector Terminals of this connector are labelled in the standard manner. Only DC voltage in the range from 10.8 to 15.6 V can be connected to the device. Voltages outside this range may damage the radio modem. Terminal PI
(power indicator): if the radio modem is fed from the MS2000 power supply information from this source is 7 passed to this terminal about the method of supply; level TTL0 230 V AC supply, TTL1 battery supply. If the radio modem is supplied in another manner the method of supply is deduced according to the voltage (the value from which the supply is considered as supply from a battery can be set in SW). Information LED Information LED diodes next to the supply connector:
RF Tx radio modem transmits RS SYNC radio modem received message header which was destined for it Three following LED (signal strength):
RSS <85 (stronger signal) ON ON ON OFF ON ON RSS 85 to 95 OFF OFF ON RSS 95 to 115 OFF OFF OFF RSS > 115 POWER ON radio modem is correctly supplied Service Connector The service connector is used for temporary connections of the service cable during local adjustment of radio modem parameters. Upon attaching the connector (connecting to the RS232 link (RxD,TxD, GND)) the radio modem automatically switches to service mode and the SCC0 disconnects. Important ATTENTION! The service mode is not suitable for normal operation. Table 3.5. Table of service connector connections 1 2 3 4 5 6 AF_OUT SER_RxD SER_TxX MOD_BSB GND PTT Output of modulation from radio RS232 RxD according to standard RS232 RS232 TxD Input modulation to radio Ground Transmitter ON Figure 3.1. Service connector connections 8 Figure 3.2. View of radio modem description of connectors, model with DSUB
(Canon) connectors and with terminalsO 9 4. Table of Technical Parameters Table 4.1. Table of technical parameters TYPE EU USA Frequency range Channel spacing Method of setting the working frequency MTBF (mean time between failures) Switching time transmitting/receiving Operating range of temperature Nominal supply voltage Supply voltage range Consumption Mechanical dimensions Weight Antenna connector Receiver sensitivity for BER 10-3 Output performance software adjustable Max. speed of modulation for transmitting 406 412 MHz, 421 512 MHz MR400: 380 470 MHz MR300: 290 380 MHz MR160: 136 180 MHz 25 kHz or 12.5 kHz Software in the range 3.2 MHz 60 000 hours
< 1.5 ms
-25 to +55 C 13.8 V 10.8 to 15.6 V Receiving 380 mA (eth. module +40 mA, I/O module +50 mA) Transmitting 1.6 A / 1 W, 2.0 A / 5 W 208 108 63 mm (including DIN rails 71 mm) 184 108 63 mm (short version) 1.30 kg N female Better than -107 dBm 0.1 5 W 21.68 kbit/s in channel 25 kHz 10.84 kbit/s in channel 12.5 kHz 1. a 2. slot 1RS232 galv. sep. or unseparated, or 1RS422/RS485 galvanically separated 3. slot 2RS232 4. slot Ethernet 10/100 Mbps 5. slot input outputs (analog and digital) Optional modules Radio parameters COMPLIES WITH STANDARDS FCC PART90 406 412 MHz, 421 512 MHz RSS119 406 412 MHz, 421 512 MHz ETSI EN 300 113-1 V1.4.1:2002 380 470 MHz EMC (electromagnetic compatibility) Electrical safety Use in mobile environments ETSI EN 301489-5 V1.2.1:2000 CSN EN 60 950:2001 UN Regulation No.10 (EHK No.10) 10 5. Dimensional Diagram Figure 5.1. Mechanical dimensions of MR400 11 6. Labelling Radio Modems Figure 6.1. Serial codes of products 12 7. Conditions for MR400 Operation Radio modem installation and maintenence Radio modems MR400 (MR300, MR160) shall always be installed by personell who have been trained by RACOM or by an authorised representative of RACOM. Information contained in the documentation, including this manual, can not fully substitute the training required. MR400 as such does not require any regular maintenance when properly installed. A functional wireless data network, however, does require permanent maintenance/management performed by qualified and trained personnel. RACOM and/or its authorised partners around the world provide both the training and technical support necessary. When a remote access to the networkis enabled by the customer, the majority of maintenance issues can be handled directly by RACOM's technical support team. Important:
CAUTION!
The installation may contain a rechargeable backup battery. When replacing the old battery, a correct type of rechargeable battery must be used. Otherwise there is a risk of explosion. Follow the manufacturer's instructions for handling used batteries. 13 Conditions of Liability for Defects and Instructions for Safe Operation of Equipment. Please read these safety instructions carefully before using the product:
In order to comply with FCC's RF exposure limits for General Population/Uncontrolled Exposure, the antenna used for this device must be fixed-mounted on outdoor permanent structures and must not be co-located or operating in conjunction with any other antenna or transmitter. Liability for defects does not apply to any product that has been used in a manner which conflicts with the instructions contained in this operator manual, or if the case in which the radio modem is located has been opened, or if the equipment has been tampered with. The radio modem can only be operated on frequencies stipulated by the body authorised by the radio operation administration in the respective country and cannot exceed the maximum permitted output power. RACOM is not responsible for products used in an unauthorised way. Equipment mentioned in this operator manual may only be used in accordance with instructions contained in this manual. Error-free and safe operation of this equipment is only guaranteed if this equipment is transported, stored, operated and controlled in the proper manner. The same applies to equipment maintenance. In order to prevent damage to the radio modem and other terminal equipment the supply must always be disconnected upon connecting or disconnecting the cable to a radio modem data interface. It is necessary to ensure that connected equipment has been grounded to the same potential. Before connecting the supply cable the output source voltage should be disconnected. When using rechargeable batteries as back-up supplies manufacturers instructions for these rechargeable batteries should be adhered to at all times. Upon disposal of the radio modem at the end of its service life regulations related to the disposal of electronic equipment must be adhered to. 14 Declaration of Conformity RACOM s. r. o. hereby declares that its radio modem MR400 (MR300, MR160) product complies with the basic requirements and other respective measures of regulation 1999/5/EC. This equipment therefore bears the CE marking. The warning exclamation mark in the circle marks the radio modem as class 2 equipment denoting radio equipment with possible limitations or with requirements on authorisation to use radio equipment in certain countries. 15 Limitations of Use. The MR400 radio modem has been developed for the frequency range 380 512 MHz. Specific Specific subranges are approved to be used in each country or region. A radio modem user must keep in mind that this radio device cannot be operated without the permission of the respective local radio spectrum administrator who provides a specific frequency for use and issues the appropriate permission for this. Important Users of MR400 radio modems in North America must be aware that because the 406.0 406.1 MHz frequency range is reserved only for the government the use of radio modems on these frequencies is strictly forbidden without proper permission. 16 DISCLAIMER:
RACOM s. r. o.
(hereinafter referred to as RACOM) is the exclusive owner of all rights to this operator manual. All rights reserved. Any duplication of this manual in any way, shape or form, or translation to any other language (without the prior written consent of the owner of the rights) is strictly forbidden. RACOM retains the right to make changes to the technical specification or functions of this product or to terminate production of this product, or to terminate service support of this product without advance written notice to the customer. RACOM firmware is available free of charge. Source code is the property of RACOM and is not available to any user. Any commercial use of the software with this licence is strictly forbidden. Changes to software and documentation are forbidden. RACOM firmware is released with the intention that it will be useful, however without any specific guarantees. Under no circumstances is the author or any other company or person responsible for incidental, accidental or related damage arising as a result of the use of this product. RACOM does not provide the user with any form of guarantee containing assurance of the suitability and applicability of the product for any particular purpose. RACOM products are not developed, designed or tested for use in applications which directly affect the health and life functions of humans or animals and RACOM does not provide any guarantee if company products are used in such applications. 17