Powerwave Technologies 5JS0045 Multicarrier PCS Power Amplifier User Manual Section 2

Powerwave Technologies Inc Multicarrier PCS Power Amplifier Section 2

User Manual Section 2

044-05077 Rev. A 2-1INSTALLATION2-1. INTRODUCTIONThis section contains installation recommendations, unpacking, inspection, and installationinstructions for the multicarrier PCS amplifier. Carefully read all material in this section prior toequipment unpacking or installation. Also read and review the operating procedures in Section 3prior to installing the equipment. It is important that the licensee perform these tasks correctly andin good faith. If applicable, carefully read Parts 73 and 74 of the Federal CommunicationsCommission (FCC) rules to determine how they apply to your installation. DON'T TAKECHANCES WITH YOUR LICENSE.2-2. ELECTRICAL SERVICE RECOMMENDATIONSPowerwave Technologies recommends that proper AC line conditioning and surge suppression beprovided on the primary AC input to the +27 Vdc power source. All electrical service should beinstalled in accordance with the National Electrical Code, any applicable state or local codes, andgood engineering practice. Special consideration should be given to lightning protection of allsystems in view of the vulnerability of most transmitter sites to lightning. Lightning arrestors arerecommended in the service entrance. Straight, short ground runs are recommended. Theelectrical service must be well grounded.Each amplifier system should have its own circuit breaker, so a failure in one does not shut off thewhole installation. Circuit breakers should be thermal type, capable of handling the anticipatedinrush current, in a load center with a master switch.2-3. UNPACKING AND INSPECTIONThis equipment has been operated, tested and calibrated at the factory. Only in the event ofsevere shocks or other mistreatment should any substantial readjustment be required. Carefullyopen the container(s) and remove the amplifier module(s). Retain all packing material that can bereassembled in the event that the unit must be returned to the factory.CAUTIONExercise care in handling equipmentduring inspection to prevent damagecaused by rough or careless handling.Visually inspect the amplifier module for damage that may have occurred during shipment. Checkfor evidence of water damage, bent or warped chassis, loose screws or nuts, or extraneouspacking material in the connector or fans. Inspect the rear panel connector for bent connectorpins. If the equipment is damaged, a claim should be filed with the carrier once the extent of anydamage is assessed. We cannot stress too strongly the importance of IMMEDIATE carefulinspection of the equipment and the subsequent IMMEDIATE filing of the necessary claims againstthe carrier if necessary. If possible, inspect the equipment in the presence of the delivery person.If the equipment is damaged, the carrier is your first area of recourse. If the equipment isdamaged and must be returned to the factory, write or phone for a return authorization.Powerwave may not accept returns without a return authorization. Claims for loss or damage maynot be withheld from any payment to Powerwave, nor may any payment due be withheld pendingthe outcome thereof. WE CANNOT GUARANTEE THE FREIGHT CARRIER'S PERFORMANCE.Section2
044-05077 Rev. A 2-22-4. INSTALLATION INSTRUCTIONS (Refer to figures 1-1 and 2-1)The G3S-1900-80 amplifier module is designed for installation in a subrack that permits access tothe rear of the subrack for connection of DC power, RF, and monitor cables.To install the amplifier proceed as follows:1. Install subrack in equipment rack and secure in place. 2. Connect antenna cable to rear of subrack. 3. Connect the transceiver output(s) to rear of subrack. 4. Connect alarms cable(s). WARNINGVerify that all circuit breaker switches on the rearpanel of the subrack are in the OFF position. Turnoff external primary DC power before connecting DCpower cables. 7. Connect positive primary power and negative primary power to the subrack. Tighten thesubrack power connections.8. Install the plug-in amplifier module(s) in the subrack. Verify that the latch is properly seated. 9. Check your work before applying DC voltage to the system. Make certain all connections aretight and correct. 10. Measure primary DC input voltage. DC input voltage should be +27 Vdc ±1.0 Vdc. If the DCinput voltage is above or below the limits, call and consult Powerwave before you turn on youramplifier system. 11. Refer to section 3 for initial turn-on and checkout procedures.2-5 AMPLIFIER MODULE CONNECTORSThe amplifier has three connectors on the right rear of the module. The largest is a 21-pin maleD-Sub combo which provides the status, alarm, control, and power connections. The smallerconnectors are BMA female coaxial contacts from Radiall, which provide the RF connections.Refer to figure 2-1.Figure 2-1. G3S-1900-80 Amplifier, Rear View
044-05077 Rev. A 2-32-5.1. AMPLIFIER MODULE STATUS, ALARM, CONTROL, AND POWER CONNECTORThe amplifier has a separate remote alarm and control connector which may be used by the hostsystem to monitor and control the individual amplifier modules. The status, alarm, control, andpower connections on the amplifier connector are made through a 21-pin male D-Sub comboconnector (figure 2-2) and are listed and described in table 2-1.Figure 2-2. DC and Logic Connector (on Rear of G3S-1900-80 Amplifier Module]Table 2-1. Amplifier Module DC and Logic Connector DefinitionPIN FUNCTION DESCRIPTIONA1 Power Input +27 Vdc (Power Contact)A2 Power Input +27 Vdc (Power Contact)A3 Ground Ground (Power Contact)A4 Ground Ground (Power Contact)1 RS485 +TxD Serial Communication Data Out2 RS485 +RxD Serial Communication Data In3 Service Loop TTL input to Amp. Gnd. for special test mode (Note 1)4 MCPA Disabled(Summary Fault) TTL signal normally low indicates MCPA enabled. A high level indicatesthat the MCPA has been disabled. Over Power, Over Voltage takesone second to activate the signal.5 Mod Addr 0 TTL input to Amp. Gnd. supplied by shelf to identify slot.6 Mod Addr 1 TTL input to Amp. Gnd. supplied by shelf to identify slot.7 TP1 TTL output. Future test point.8 Manual Download GND to download manually9 DC on stat TTL output. High indicates Amp is powered on.10 RS485 –TxD Serial Communication Data Out11 RS485 –RxD Serial Communication Data In12 SCL7 No connection13 SDA7 No connection14 FP Disable Output Output, GND if the front panel switch is in the OFF position; +5 voltsindicates the front panel switch is in the ON position.15 FP RST Output, GND if the front panel switch is in the RESET position; +5 voltsotherwise.16 GND Ground17 Module Detect Ground potential. Informs the subrack that an MCPA is plugged in.
044-05077 Rev. A 2-4Note 1: Service loop grounded allows the MCPA to be enabled or disabled by the front panelswitch when not mounted in the shelf.
044-05077 Rev. A 2-52-5.2. AMPLIFIER MODULE RF CONNECTORThe amplifier has a separate RF connector which is used for the RF signal input and output. TheRF connections on the amplifier connector are made through two radial BMA coaxial contacts.(figure 2-3) and are listed and described in table 2-2.Figure 2-3. Amplifier RF ConnectorTable 2-2. Amplifier RF Connector DefinitionFUNCTION DESCRIPTIONRF Input Radiall BMA FemaleRF Output Radiall BMA FemaleRF Output RF Input

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