1930-1990 MHz Operation Manual G3L-1900-31 (DC) / G3L-1900-31-A (AC) Wideband Multi-Carrier Power Amplifier Operation Manual 1930 MHz 1990 MHz 044-05116 Rev. A June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual 2002 Powerwave Technologies Incorporated. All rights reserved. Powerwave Technologies, and the Powerwave logo are registered trademarks Powerwave Technologies, Inc. reserves the right to make changes to the documentation and equipment, including but not limited to component substitution and circuitry changes. Changes that impact this manual may subsequently be incorporated in a later revision of this manual. Powerwave Technologies, Inc. 1801 E. St. Andrew Place Santa Ana, CA 92705 Tel: (714) 466-1000
(888) 797-9283 Fax: (714) 466-5800 Web Site: www.powerwave.com 044-05116 Rev. A Copyright Powerwave Technologies, Inc., June 2002. All rights reserved ii June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual Section 1 General Description 1-1 Introduction This manual contains information and procedures for the operation of the model G3L-1900-31 and G3L-1900-31-A Wideband (WCDMA) Multi-Carrier Power Amplifier (MCPA). The manual is organized into the following sections and appendix. Section 1 Section 2 Appendix A General Description Operation Specifications 1-2 General Description The amplifiers are wideband, linear, feed-forward power amplifiers (WPAs) that operate in the 60 MHz frequency bandwidth from 1930 to 1990 MHz with an instantaneous bandwidth of 20 MHz. The amplifier provides linear amplification for single or multi-carrier WCDMA signals. The amplifi-
ers communicate with the base station via a TLCI control interface bus; passing alarm and meas-
urement information to the base station and receiving control information from the base station. 1-3 Hardware Interface There are three groups of interface connections located on the amplifier chassis. These are RF, power, and control interface (TLCI bus) as described in the paragraphs that follow. 1-3.1 RF The RF interface is located on the power amplifier front panel consists of the RF-In (TX-In) and RF-Out (TX-Out) connectors as shown in Figure 1-1. 1-3.2 Power Supply Power supply voltages (-48 VDC or 230 VAC) from the base station subrack are connected to the amplifier via connector X3, pins A D located on the power amplifier rear panel as shown in figure 1-1. Table 1-1 lists the voltages and descriptions for each pin. Table 1-1 Primary Power Connections Signal Group X3 Connector Pin A AC DC B C D E Signal Name Description L N PE
-48VDC
+48VDC AC Phase (isolated from amplifier chassis) AC Zero (isolated from amplifier chassis) AC Protective Ground (connected to chassis) DC Minus (isolated from amplifier chassis) DC Plus (isolated from amplifier chassis) 044-05116 Rev. A Copyright Powerwave Technologies, Inc., June 2002. All rights reserved 1-1 June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual 1-3.3 TLCI Bus Communications The purpose of the TCLI bus is to provide a communications interface between the power ampli-
fier and base station. The bus is connected from the base station subrack to the X3 connector lo-
cated on the power amplifier rear panel as shown in figure 1-1. Table 1-2 lists the signal names and descriptions for each pin of the 24-pin connector. Signal Group TLCI WPA ID GND Table 1-2 TLCI Bus Connections X3 Connector Pin Signal Name Description AXMTP AXMTN ARCVP ARCVN WPA_ID_BIT0 WPA_ID_BIT1 WPA_ID_BIT2 Ethernet, 10BASE-T Hard-coded WPA ID BIT0=LSB, BIT!=MSB OPEN=1=Logical High Gnd=0=Logical Low Ground Connected to WPA chassis ground 2 3 18 19 5 13 21 1 4 8 9 10 11 12 17 20 24 Free 6, 7, 14. 15, 16, 22, 23 Reserved for WPA manufacture 044-05116 Rev. A Copyright Powerwave Technologies, Inc., June 2002. All rights reserved 1-2 June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual 1-4 Alarms The WPA generates the following alarms and communicates then to the base station via the TLIC bus:
VSWR Gain Temperature Over-Drive Power Supply Linearization The base station is able to query the current alarm status from the WPA. Fault status is cleared at unit reset which means that any alarm detected after reset is reported to the base station. The alarm status always represents existing conditions. 1-4.1 VSWR The WPA supervises the output (load) VSWR and gives the alarm based on the following limits as listed in table 1-3. VSWR Alarm Status VSWR alarm ON VSWR alarm OFF Table 1-3 VSWR Alarm Limits Limits VSWR at the output>6.0:1 @ phase 0-360 VSWR at the output<3.0:1 or when the VSWR alarm is dis-
abled @ phase 0-360 1-4.2 Gain The WPA supervises the gain of the unit and gives the gain alarm according to the limits listed in table 1-4. Gain Alarm Status Gain alarm ON Gain alarm OFF Table 1-4 Gain Alarm Limits Limits Gain deviates more than 1.5 dB from specified nominal gain or if the carrier cancellation loop is out of lock, the gain alarm is activated Gain is within the specified range or disabled 1-4.3 Temperature The WPA monitors the internal temperature. The measured temperature must represent the base plate temperature of the main power amplifier. The alarm is given according to the limits listed in table 1-5. 044-05116 Rev. A Copyright Powerwave Technologies, Inc., June 2002. All rights reserved 1-3 June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual Temperature Alarm Status Temperature alarm ON Temperature alarm OFF Table 1-5 Temperature Alarm Limits Limits Internal base plate temperature is equal or higher than 92C Internal base plate temperature decreases more than 10C from the alarm on temperature 1-4.4 Overdrive The overdrive alarm causes an automatic WPA shutdown. 1-4.5 Power Supply The WPA monitors the internal DC supply voltages and gives the power supply alarm if any of the voltages are out of the specified range. This alarm causes an automatic WPA shutdown. 1-4.6 Linearization In case of poor output signal, the linearization causes an automatic WPA shutdown. 1-5 Status Indicator The status indicator LED is located on the WPA front panel as shown in figure 1-1. The LED has tri-color capability: red, yellow, and green. The LEDs blinking frequency is 0.5 1 Hz with a duty cycle of 45 55%. The LED indicates the status of the WPA as listed in table 1-6. Table 1-6 Status Indicator Colors LED Color Red (stable) Red (stable) LED lighting period 1.500..55 sseecc Yellow (blinking) Yellow (stable) LED state as it was before disconnection Yellow (stable) WPA Status Manual main-switch turned standby and no TCP/UDB connection established Manual main-switch turned ON or WPA is resetting WPA in self-heating state In startup phase, WPA is in standby state and before state change message from WPA TCP/IP connection is lost for two minutes TCP/IP connection is lost and WPA is in standby state 1-6 Functional And Physical Specifications Functional and physical specifications for the model G3L-1900-31 and G3L-1900-31-A amplifiers are listed in appendix A. 044-05116 Rev. A Copyright Powerwave Technologies, Inc., June 2002. All rights reserved 1-4 June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual 1-7 Equipment Changes Powerwave Technologies, Inc. reserves the right to make minor changes to the equipment, in-
cluding but not necessarily limited to component substitution and circuitry changes. Changes that impact this manual may subsequently be incorporated in a later revision of this manual. To that end, we ask that you, our customer, share with us any information acquired in field situations that would enhance this manual. 1-8 Ordering Information Table 1-7 below gives the model numbers and descriptions used when ordering major compo-
nents. Table 1-7 Major Components Nokia Model Number*
WPAF PWAV Model Number*
G3L-1900-31 044-05116 Manual Number Description 31W, 1930 1990 MHz ampli-
fier module (DC) 31W, 1930 1990 MHz amplifier module (AC) WPAE G3L-1900-31-A 044-05116
* Nokia model number located on front panel. Powerwave Technologies model number located on rear panel. Figure 1-1 G3L-1900-31 and G3L-1900-31-A Front and Rear Views 044-05116 Rev. A Copyright Powerwave Technologies, Inc., June 2002. All rights reserved 1-5 June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual Section 2 Operation 2-1 Introduction This section contains operating instructions for the G3L-1900-31 or G3L-1900-31-A wideband power amplifier (WPA). 2-2 Initial Start-Up and Operating Procedures The manual main power supply ON/OFF switch is located on the WPA front panel (refer to figure 1-1 and paragraph 1-5 for status indicator conditions). Turn on the WPA as described in the steps that follow. CAUTION Before applying power, make sure that the input and output of the system is properly terminated at 50 ohms. Do not operate the system without a load attached. Refer to appendix A for input power requirements. Excessive input power may damage the amplifier. WARNING Never remove or install coaxial cables on either the subrack input or output port when the power amplifier is turned on. Operating the power amplifier while disconnecting and connecting RF cables may damage the equipment and/or cause personal injury. 1. Verify that all input and output RF cables are properly connected. Do not apply an RF signal to the WPA. 2. Turn on the main manual power supply switch (1=ON, 0=OFF). The WPA will self-test and initialize (<15 sec), then establish communication with the base station via the TLCI bus. When completed, the WPA notifies the base station that it is ready to be taken into operation. The WPA then remains in a standby state until commanded by the base station. The com-
mand received from the base station includes the operating band and based on that band, the pilot frequency sets to 10 MHz lower than the lowest carrier in the operating band. NOTE When the WPA is switched on in temperature conditions below the minimum operating temperature (-10C), self-heating is performed until an acceptable operating temperature exists. The main manual power supply switch is also used to reset the WPA by manually setting the switch to OFF then back to ON. NOTE 044-05116 Rev. A Copyright Powerwave Technologies, Inc., June 2002. All rights reserved 2-1 June 2002 G3L-1900-31/G3L-1900-31-A Operation Manual Appendix A. Specifications Table A-1 G3L-1900-31/31-A Wideband Multicarrier Cellular Amplifier Functional Frequency Range Instantaneous Bandwidth Total Typical / Maximum Input Power Total Output Power Adjacent Channel Leakage Power Ratio (ACLR) Spectrum Analyzer set-
tings: 30 KHz RBW, 300 KHz VBW, True RMS detector RF Gain Gain Flatness:
Output Protection:
Input Port Return Loss:
Harmonics:
Out of Band Spurious:
Duty Cycle:
DC Input Power:
G3L-1900-31 AC Input Power:
G3L-1900-31-A Operating Temperature:
Storage Temperature:
Operating Humidity:
Storage Humidity:
AC, DC Input, Summary Alarm, Base Station Communication TLCI Bus:
RF Input Connector:
RF Output Connector:
Power Consumption:
Weight:
Dimensions:
Specifications 1930 - 1990 MHz (60 MHz Bandwidth) 20 MHz *
-15.6 - +4.9 / +5.9 dBm 31 W (44.9 dBm) ACLR1 <-46dBc@f=fc 5 MHz ACLR2 <-51dBc@f=fc 10 MHz 40 dB +0.5 dB 0.5 dB Mismatch Protected 18 dB min Better than -50 dBc Better than -60 dBc Continuous
-48 Vdc nominal, 9.1 amps typical (15 amps max) Operational -57 Vdc to -60 Vdc (Po derated outside normal operating range) 230 Vac nominal, 1.9 amps typical (3 amps max) Operational 264 Vac to 300 Vac (Po derated outside normal operating range)
-10 C to +50 C
-40 C to +85 C 0 % to 80 % Relative Humidity (noncondensing) 0 % to 100 % Relative Humidity (noncondensing) Elcon Modular Flatpaq tm SMA Female Type N-Female 435 Watts @ Po = 31 W average power 28 lbs. 3.125 High, 16.75 Wide, 14.125 Deep, 15.75 Deep including connector guides
* The command received from the base station includes the operating band and based on that band, the pilot frequency sets to 10 MHz lower than the lowest carrier in the operating band. All specifications are subject to change without notice. Contact the factory for complete performance data. Copyright Powerwave Technologies, Inc., June 2002. All rights reserved 044-05116 Rev. A A-1 June 2002