Powerwave Technologies 5JS0057 Single-Channel Cellular Amplifier User Manual I GENERAL DESCRIPTION

Powerwave Technologies Inc Single-Channel Cellular Amplifier I GENERAL DESCRIPTION

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869-894 MHz Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev.x December 2001Model SCA 9350-30 Single-Channel Cellular AmplifierInstallation & ServiceManual

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x December 2001iiiTable Of ContentsPar. Section 1 PageNo. General Description No.1-1 Introduction ................................................................................................................................... 1-11-2 General Description....................................................................................................................... 1-11-3 Functional and Physical Specifications ......................................................................................... 1-11-4 Equipment Changes....................................................................................................................... 1-1Section 2Installation2-1 Introduction ................................................................................................................................... 2-12-2 Electrical Service Recommendations ............................................................................................ 2-12-3 Unpacking and Inspection ............................................................................................................. 2-12-4 Installation Instructions ................................................................................................................. 2-22-5 Amplifier Module Connectors....................................................................................................... 2-22-5.1 Data I/O Connector........................................................................................................................ 2-32-5.2 Amplifier RF Connectors .............................................................................................................. 2-42-5.3 DC Power Connector..................................................................................................................... 2-4Section 3Operating Instructions3-1 Introduction ................................................................................................................................... 3-13-2 Location and Function of Amplifier Indicators ............................................................................. 3-13-3 Initial Start-Up and Operating Procedures..................................................................................... 3-1Section 4Principles of Operation4-1 Introduction ................................................................................................................................... 4-14-2 RF Input Signal.............................................................................................................................. 4-14-3 RF Output Load............................................................................................................................. 4-14-4 SCA 9350-30 Amplifier ................................................................................................................ 4-14-4.1 Driver Amplifier............................................................................................................................ 4-24-4.2 Main Amplifier.............................................................................................................................. 4-24-4.3 Power Distribution......................................................................................................................... 4-24-4.4 Multifunction Board...................................................................................................................... 4-2Section 5Maintenance5-1 Periodic Maintenance.................................................................................................................... 5-1

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x December 2001ivSection 6Troubleshooting6-1 Introduction ................................................................................................................................... 6-16-2 Trouble shooting............................................................................................................................ 6-16-3 Return for Service Procedures....................................................................................................... 6-16-3.1 Obtaining an RMA ........................................................................................................................ 6-16-3.2 Repackaging for Shipment............................................................................................................. 6-1List Of IllustrationsFigure PageNo. No.1-1 SCA 9350-30 Amplifier ................................................................................................................ 1-32-1 SCA 9350-30 Front Panel View.................................................................................................... 2-22-2 Data I/O Connector........................................................................................................................ 2-32-3 DC Power Connector..................................................................................................................... 2-43-1 Front Panel Indicators.................................................................................................................... 3-14-1 SCA 9350-30 Amplifier Block Diagram....................................................................................... 4-1List Of TablesTable PageNo. No.1-1 SCA 9350-30 Single-Channel Cellular Amplifier Functional Specifications................................ 1-22-1 Data I/O Connector Pin Definition................................................................................................ 2-32-2 Amplifier RF Connector Definition............................................................................................... 2-42-3 DC Power Connector Definition ................................................................................................... 2-46-1 Troubleshooting............................................................................................................................. 6-1

SCA 9350-30 Installation and Service Manual CCooppyyrriigghhtt PPoowweerrwwaavvee TTeecchhnnoollooggiieess,, IInncc..,, DDeecceemmbbeerr 22000011.. AAllll rriigghhttss rreesseerrvveeddAAllll ssppeecciiffiiccaattiioonnss aarree ssuubbjjeecctt ttoo cchhaannggee wwiitthhoouutt nnoottiiccee.. CCoonnttaacctt tthhee ffaaccttoorryy ffoorr ccoommpplleettee ppeerrffoorrmmaannccee ddaattaa..044-xxxxx Rev. x 1-1 December 2001Section 1 General Description1-1 IntroductionThis manual contains information and procedures for installation, operation, and maintenance ofPowerwave’s SCA 9350-30 (Nortel Model No. NTQA37AA) single-channel cellular amplifier. Themanual is organized into six sections as follows:Section 1. General DescriptionSection 2. InstallationSection 3. Operating InstructionsSection 4. Principles of OperationSection 5. MaintenanceSection 6. Troubleshooting1-2 General DescriptionThe SCA 9350-30 (see figure 1-1) is a single-channel power amplifier that operates in the 25 MHzfrequency band from 869 MHz to 894 MHz. It is designed for use in an amplifier system that ismodular in design, and is ideally suited for use in GSM/EDGE base stations. The amplifier is ca-pable of transmitting at 30 watts of power in either GMSK or EDGE modulation. All solid-state, theamplifier is designed to provide trouble-free operation with minimum maintenance. The system'smodular construction and unique and highly effective operational status and fault monitoring cir-cuitry help minimize downtime. The turn-on and turn-off sequences of voltages are fully automatic,as is overload protection.Each amplifier module has an I/O connector that allows the host system to monitor the amplifiermodule performance. Primary power for the amplifier is –48 Vdc. The amplifier has an integratedheat sink for cooling.1-3 Functional And Physical SpecificationsFunctional and physical specifications for the amplifier are listed in table 1-1.1-4 Equipment ChangesPowerwave 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 thatimpact this manual may subsequently be incorporated in a later revision of this manual.

SCA 9350-30 Installation and Service Manual CCooppyyrriigghhtt PPoowweerrwwaavvee TTeecchhnnoollooggiieess,, IInncc..,, DDeecceemmbbeerr 22000011.. AAllll rriigghhttss rreesseerrvveeddAAllll ssppeecciiffiiccaattiioonnss aarree ssuubbjjeecctt ttoo cchhaannggee wwiitthhoouutt nnoottiiccee.. CCoonnttaacctt tthhee ffaaccttoorryy ffoorr ccoommpplleettee ppeerrffoorrmmaannccee ddaattaa..044-xxxxx Rev. x 1-2 December 2001Table 1-1 SCA 9350-30 Single-Channel Cellular Amplifier Functional SpecificationsFrequency Range 869-894 MHzNominal Input Power -0.2 dBmTotal Output Power 30 watts nominal / 33 watts maximumRF Gain at 1960 MHz 45 +/- 0.5 dBGain Variation Over All Conditions: ±2.0 dBOutput Protection: Mismatch ProtectedInput Port Return Loss: -14 dB (Min)Out of Band Spurious: -50 dBc (max)Spectral Mask Frequency Removed From Carrier GSM EDGE200 kHz -31 dBc -31 dBc250 kHz -34 dBc -34 dBc400 kHz -61 dBc -57 dBc600 kHz -71 dBc -71 dBc1200 kHz -74 dBc -74 dBc1800 kHz -76 dBc -76 dBc6000 kHz -81 dBc -81 dBcDuty Cycle: ContinuousDC Input Power: -48 VDC; 2.9 amps typical; 4.2 amps max.-36 to –60 VDC, 140 watts typical; 200 watts max.Heat Dissipation 375 BTUs typicalOperating Temperature: 0 ºC. to +60 ºC.Storage Temperature: -40 ºC. to +75 ºC.Operating Humidity: 5 % - 95 % Relative Humidity (Noncondensing)Storage Humidity: 5 % - 95 % Relative Humidity (Noncondensing)RF Input / Output Connector SMA Female (Input) / Type N Female (Output)DC Power Connector 3-Pin D-Subminiature (20 A Contacts)Data I/O Connector 20-Pin SCSIDimensions: 2.55” High, 9.48” Wide, 11.85” Deep

SCA 9350-30 Installation and Service Manual CCooppyyrriigghhtt PPoowweerrwwaavvee TTeecchhnnoollooggiieess,, IInncc..,, DDeecceemmbbeerr 22000011.. AAllll rriigghhttss rreesseerrvveeddAAllll ssppeecciiffiiccaattiioonnss aarree ssuubbjjeecctt ttoo cchhaannggee wwiitthhoouutt nnoottiiccee.. CCoonnttaacctt tthhee ffaaccttoorryy ffoorr ccoommpplleettee ppeerrffoorrmmaannccee ddaattaa..044-xxxxx Rev. x 1-3 December 2001Figure 1-1. SCA 9350-30 AmplifierAll dimensions are in inchesAnd are for reference only

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x 2-1 December 2001Section 2 Installation2-1 IntroductionThis section contains installation recommendations, unpacking, inspection, and installation in-structions for the SCA 9350-30 single channel cellular amplifier. Carefully read all material in thissection prior to equipment unpacking or installation. Also read and review the operating proce-dures in Section 3 prior to installing the equipment. It is important that the licensee perform thesetasks correctly and in good faith. If applicable, carefully read the Federal Communications Com-mission (FCC) rules to determine how they apply to your installation. DON'T TAKE CHANCESWITH YOUR LICENSE.2-2 Electrical Service RecommendationsPowerwave Technologies recommends that proper AC line conditioning and surge suppressionbe provided on the primary AC input to the -48 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. The electri-cal service must be well grounded.The amplifier has an internal fuse, so a failure in one does not shut off the whole installation.2-3 Unpacking And InspectionThis equipment has been operated, tested and calibrated at the factory. Only in the event of se-vere 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 equipment during inspection to prevent damage caused byrough 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, or loose screws or nuts. Inspect the frontpanel for bent connector pins. If the equipment is damaged, a claim should be filed with the carrieronce the extent of any damage is assessed. We cannot stress too strongly the importance of IM-MEDIATE careful inspection of the equipment and the subsequent IMMEDIATE filing of the nec-essary claims against the carrier if necessary. If possible, inspect the equipment in the presenceof the delivery person. If the equipment is damaged, the carrier is your first area of recourse. If theequipment is damaged and must be returned to the factory, write or phone for a return authoriza-tion. Powerwave may not accept returns without a return authorization. Claims for loss or damagemay not be withheld from any payment to Powerwave, nor may any payment due be withheldpending the outcome thereof. WE CANNOT GUARANTEE THE FREIGHT CARRIER'S PER-FORMANCE.

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x 2-2 December 20012-4 Installation Instructions (Refer to figures 1-1 and 2-1)The SCA 9350-30 is intended for installation in a Restricted Access Location.The SCA 9350-30 amplifier module is designed for installation in a subrack that permits access tothe amplifier’s front panel for connection of DC power, RF, and monitor cables.To install the amplifier proceed as follows:1. Install amplifier in the BTS rack and secure in place.2. Connect the amplifier front panel RF Out (Type-N) connector to the antenna cable.3. Connect the amplifier front panel RF In (Type-SMA) connector to the transceiver output(s).4. Connect the BTS 20-pin Data I/O cable to the amplifier. Refer to section 2-5.1.WARNINGTurn off external DC power before connecting DC power cables. Verify that theamplifier is terminated into a proper 50 Ohm load.5. Connect the DC power cable to the rack and amplifier. Refer to section 2-5.3.6. Check your work before applying DC voltage to the system. Make certain all connections aretight and correct.7. Measure DC input voltage. DC input voltage should be -36 to –60 VDC. If the DC input volt-age is above or below the limits, call and consult Powerwave before you turn on your ampli-fier system.8. Refer to section 3 for initial turn-on and checkout procedures.2-5 Amplifier Module ConnectorsThe amplifier has four connectors on the front of the module. These include a SCSI connectorwhich provides the data I/O connections, SMA female RF input, Type N female RF output, and 3-pin high current contact DC input connectors. Refer to figure 2-1. Each is fully described in theparagraphs that follow.Figure 2-1 SCA 9350-30 Front Panel View

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x 2-3 December 20012-5.1 Data I/O ConnectorThe amplifier has a separate remote alarm and control connector that may be used by the hostsystem to monitor and control the individual amplifier modules. The status, alarm, and controlconnections on the amplifier connector are made through a 20-pin SCSI connector (figure 2-2)and are listed and described in table 2-1.Figure 2-2 Data I/O Connector (on Front Panel)Table 2-1 Data I/O Connector Pin DefinitionPin Function Description1 Ground Ground2 Ground Ground3 Synchro Signal + Synchro Signal from TRX4 UART TX + Information Exchange (TRX to PA)5 Manual Control To Set PA in Test Mode6 Not Connected7 UART RX + Information Exchange (PA to TRX)8 Not Connected9 Not Connected10 Not Connected11 Ground Ground12 Ground Ground13 Synchro Signal - Synchro Signal from TRX14 UART TX - Information Exchange (TRX to PA)15 Not Connected16 Not Connected17 UART RX - Information Exchange (PA to TRX)18 Not Connected19 Not Connected20 Not Connected

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x 2-4 December 20012-5.2 Amplifier RF ConnectorsThe amplifier has two RF connectors. The RF Input connector is a SMA female. The input poweron this port should not exceed the level specified in table 1-1. The RF Output connector is Type Nfemale. They are listed and described in table 2-2.Table 2-2 Amplifier RF Connector DefinitionFunction DescriptionRF Input SMA FemaleRF Output Type N Female2-5.3 DC Power ConnectorThe DC power connector is a three-pin high current contact D-subminiature connector. The pinconfiguration is listed in table 2-3 and shown in figure 2-3.Table 2-3 DC Power Connector DefinitionPin Description1 -48 V2 Chassis Ground3 Battery ReturnFigure 2-3 DC Power Connector

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x 3-1 December 2001Section 3 Operating Instructions3-1 IntroductionThis section contains operating instructions for the single channel cellular amplifier system.3-2 Location And Function Of Amplifier IndicatorsThe front panel LED is located to the right of the 20-pin Data connector and indicates the amplifierstatus.• Green means the amplifier is operating properly.• Red indicates an alarm or off condition.The nature of the alarm can only be determined through the software interface of the Base-Transceiver System (BTS). Please consult the BTS manual for details on monitoring amplifierstatus.Figure 3-1 Front Panel Indicators3-3 Initial Start-Up And Operating ProceduresTo perform the initial start-up, proceed as follows:1. Verify that all input and output cables are properly connected.CAUTIONBefore applying power, make sure that the input and output of the amplifier areproperly terminated at 50 ohms. Do not operate the amplifier without a load attached.Refer to table 1-1 for input power requirements. Excessive input power may damagethe amplifierNOTEThe output coaxial cable between the amplifier and the antenna must be 50 ohmcoaxial cable. Use of any other cable will distort the output.2. Turn on supply that provides -48 Vdc to the amplifier system. Do not apply an RF signal tothe amplifier system3. Verify that the LED is lit and the color Green.4. Turn on external exciter/transceiver and apply RF input signals. Adjust the input power toachieve the desired output power. Refer to the BTS manual for instructions on performingthis step.Front Panel Status Indicator

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev.x 4-1 December 2001Section 4 Principles of Operation4-1 IntroductionThis section contains a functional description of the single-carrier SCA 9350-30 amplifier.4-2 RF Input SignalThe maximum input power should not exceed the levels to produce the maximum rated RF outputpower in table 1-1. This level is approximately 0 dBm, but should be set through the base-transceiver station’s software interface. See the BTS manual for detailed instructions.4-3 RF Output LoadThe load impedance should be as good as possible (1.5:1 or better) in the working band for goodpower transfer to the load.4-4 SCA 9350-30 AmplifierThe amplifier, figure 4-1, has an average output power of 30 watts, and is designed to supporttransmission in GMSK and EDGE modulation. With an input signal of approximately 0 dBm, theamplifier will operate at its rated output power. The amplifier is comprised of:Driver AmplifierMain AmplifierMultifunction BoardDC/DC Converter Module Main AmpTemp SenseDetDriverDACMCURS-485 Intfc20-pin SCSI3PWR ConnRed/GrnInput Filter/ProtectionCurrent SenseDC/DC-48/+265 V Reg.Power Supply+26MultifunctionFigure 4-1 SCA 9350-30 Amplifier Block Diagram

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev.x 4-2 December 20014-4.1 Driver AmplifierThe driver amplifier is a two-stage amplifier which provides approximately 28 dB of gain in the 25MHz frequency band from 869 to 894 MHz. The amplifier is mounted directly on a heat sink, whichis temperature monitored by a thermal sensor.4-4.2 Main AmplifierThe main amplifier is a single-stage Class AB amplifier with approximately 13 dB gain and a P1dBof +50 dBm. The amplifier’s output is protected from output mismatches. The amplifier is de-signed to meet spectral mask requirements for GSM and EDGE signals when operated up to+45.2 dBm. The amplifier is mounted directly on a heat sink.4-4.3 Power DistributionThe amplifier module operates on a –48 VDC nominal power supply consuming 2.9 amps (typi-cally) current at full power. A DC/DC converter to supply internal circuitry with +26 VDC and +5VDC.4-4.4 Multifunction BoardThe multifunction board enables communication between the amplifier and the base-transceiverstation in which it is installed, and stores information about the amplifier. It includes gain controland two gain stages providing 7 dB gain. The multifunction board also monitors several amplifierperformance parameters and reports output power so that the BTS can maintain the output powerwithin specified limits. When these parameters are beyond acceptable levels, the amplifier willalarm. The multifunction board is mounted directly on a heat sink, which is temperature monitoredby a thermal sensor.The alarms are:Temperature Alarm - If the internal temperature reaches 90°C, the PA shuts down and com-municates an alarm through the digital interface.DC/DC Alarm - If the output voltage of the converter falls below 23.5V, the PA shuts downand communicates an alarm through the digital interface.Over-current Alarm - If the output current of the DC/DC converter goes above a nominalthreshold (7.5 A), the PA shuts down and communicates an alarm through the digitalinterface.Communication Alarm - If the serial interface detects an error in transmission (parity, over-run, framing), an alarm is sent for one burst only during the very next burst. The PAoperation is not affected.

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x 5-1 December 2001Section 5 Maintenance5-1 IntroductionThe amplifier is designed to be operated without any required periodic maintenance other thanmaintenance which may be recommended by the manufacturer of the BTS. Please consult yourBTS manual for guidance.

SCA 9350-30 Installation and Service Manual Copyright Powerwave Technologies, Inc., December 2001. All rights reserved044-xxxxx Rev. x 6-1 December 2001Section 6 Troubleshooting6-1 IntroductionThis section contains a list of problems and a few suggested actions that may correct the prob-lem. If the suggested corrective action does not eliminate the problem, please contact yourPowerwave field representative or the factory for further instructions.NOTECheck your sales order and equipment warranty before attempting to service or repairthe unit. Do not break the seals on equipment under warranty or the warranty will benull and void. Do not return equipment for warranty or repair service until propershipping instructions are received from the factory.6-2 TroubleshootingRefer to table 6-1 for troubleshooting suggestions.Table 6-1 TroubleshootingSymptom Suggested ActionLED not lit1. Check that rack power connection is secure.2. Check for proper power supply voltage.3. Check that power switch is ON position.LED is red1. Verify amplifier is enabled.2. A large RF input overdrive has caused an alarm. Reduce input power andre-enable the amplifier.3. Follow recommendations of BTS operating manual.No RFOutput1. Check input and output connections and cables for integrity and tightness.2. Check RF input power to verify that it is present and within specification range.3. Contact Powerwave field representative or factory.6-3 Return For Service ProceduresWhen returning products to Powerwave, the following procedures will ensure optimum response.6-3.1 Obtaining An RMAA Return Material Authorization (RMA) number must be obtained prior to returning equipment tothe factory for service. Please contact our Repair Department at (888) 797-9283 or (714) 466-1000 to obtain this number, or FAX your request to (714) 466-5816. Failure to obtain this RMAnumber may result in delays in receiving repair service.6-3.2 Repackaging For ShipmentTo ensure safe shipment of the amplifier, it is recommended that the package designed for theamplifier be used. The original packaging material is reusable. If it is not available, contactPowerwave’s Customer Service Department for packing materials and information.