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044-05117   

Table 2-6. G3L-850-135 Amplifier Combo Connector Specifications 

Pins/Signal Names 

A1 

RF Input  (Coaxial Contact) 

A2 

+27 Vdc  (Power Contact) 

A3 

Ground  (Power Contact) 

A4 

RF Output  (Coaxial Contact) 

1 

TX H (RS-485) 

10 

System Reset TTL 

2 

TX L (RS-485) 

11 

NC 

3 GND 

12 

NC 

4 

RX H (RS-485) 

13 

AMP AO 

5 

RX L (RS-485) 

14 

AMP A1 

6 GND 

15 

AMP 

A2 

7 MOD_DET 

16 

NC 

8 

Summary Fault 

17 

MCPA Temp 

21WA4 Connector  
Description 

9 DC 

(On/Off) 

   

 

2-6 

Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier 

Summary of Contents for G3L-850-135

Page 1: ...G3L 850 135 Multi Carrier Power Amplifier Service and Installation Manual 044 05117 December 2004...

Page 2: ...ting typical operating ranges or conditions specified in this document Operation of this equipment beyond the specified ranges in this document may cause 1 spurious emissions that violate regulatory r...

Page 3: ...ng symbol means danger You are in a situation that could cause bodily injury Before you work on any equipment be aware of the hazards involved with electrical and RF circuitry and be familiar with sta...

Page 4: ...5117 Revision Record Revision Record Revision Letter Date of Entry Reason for Change A December 2004 Original version of product ii Installation and Service Manual G3L 850 135 Multi Carrier Power Ampl...

Page 5: ...2 4 2 6 2 Amplifier Module Power Alarm Control and RF Connector 2 5 Chapter 3 Operating Instructions 3 1 3 1 Introduction 3 1 3 2 Controls and Indicators 3 1 3 2 1 RESET Switch 3 1 3 2 2 LED Status I...

Page 6: ...Model G3L 850 135 Amplifier Front Isometric View 1 3 Figure 1 2 Model G3L 850 135 Amplifier Rear Isometric View 1 3 Figure 1 3 Model G3L 850 135 Amplifier Side View 1 4 Figure 1 4 Model G3L 850 135 Am...

Page 7: ...Non combining Averaged DC Current Load 2 2 Table 2 4 4 Way Combining Averaged Heat Loading 2 3 Table 2 5 4 In 4 Out Non combining Averaged Heat Loading 2 3 Table 2 6 G3L 850 135 Amplifier Combo Connec...

Page 8: ...044 05117 This Page Intentionally Blank vi Installation and Service Manual G3L 850 135 Multi Carrier Power Amplifier...

Page 9: ...instantaneous bandwidth is set automatically and does not require any manual setup The amplifier is modular in design Table 1 1 gives additional essential operating specifications Table 1 1 General Op...

Page 10: ...to 30 Vdc amplifier will disable at 20 5 Vdc or 30 5 Vdc Operating Temperature 33 C to 50 C Storage Temperature 40 C to 85 C Operating Humidity 5 to 95 relative humidity non condensing Storage Humidi...

Page 11: ...05117 Figure 1 1 Model G3L 850 135 Amplifier Front Isometric View Figure 1 2 Model G3L 850 135 Amplifier Rear Isometric View Installation and Service Manual G3L 850 135 Multi Carrier Power Amplifier...

Page 12: ...044 05117 Figure 1 3 Model G3L 850 135 Amplifier Side View Figure 1 4 Model G3L 850 135 Amplifier Bottom View 1 4 Installation and Service Manual G3L 850 135 Multi Carrier Power Amplifier...

Page 13: ...nts Table 1 3 Major System Components Model Number Description G3L 850 135 135 Watt Amplifier 27 Vdc MCR41927 1 4 4 way Combining Amplifier Subrack MCR41928 4 4 4 In 4 Out Non combining Amplifier Subr...

Page 14: ...f Verify with a voltmeter that DC power is removed prior to disconnecting equipment Refer to NEC Article 810 for clearances from power and lightning conductors mounting and grounding 1 5 1 2 Electroni...

Page 15: ...g arrestors are recommended in the service entrance Straight short ground runs are recommended The electrical service must be well grounded The information in Table 2 1 is provided as a guideline Foll...

Page 16: ...as a side benefit Table 2 2 4 Way Combining Averaged DC Current Load Amplifier Power No Of Amplifiers 3 Sector 70 Averaged Current 2 Sector 80 Averaged Current 1 Sector 90 Averaged Current 100 Typica...

Page 17: ...stallation site and is approximately in place Carefully open the several amplifier system containers and remove the contents Inventory all items to ensure all needed materials have been delivered Reta...

Page 18: ...ting DC power cables 2 6 1 Installing the Amplifier into the Subrack 1 For each Amplifier a Inspect the 21WA4 male combo connector on the rear of each amplifier Verify that all pins are straight no pi...

Page 19: ...d Unlocking Locking Thumbscrews 2 6 2 Amplifier Module Power Alarm Control and RF Connector The power alarm control and RF connections on the amplifier are made through a 21WA4 male connector located...

Page 20: ...3 Ground Power Contact A4 RF Output Coaxial Contact 1 TX H RS 485 10 System Reset TTL 2 TX L RS 485 11 NC 3 GND 12 NC 4 RX H RS 485 13 AMP AO 5 RX L RS 485 14 AMP A1 6 GND 15 AMP A2 7 MOD_DET 16 NC 8...

Page 21: ...s released it automatically returns to the middle position The middle position allows normal operation If no critical faults are present the Amplifier operates normally The down position is used to tu...

Page 22: ...n explanation of major and minor alarms 3 2 3 RJ 11 PC Interface The RJ 11 PC Interface connector located on the Front Panel is for updating the amplifier s firmware and is for factory use only 3 3 In...

Page 23: ...Reset On Off switch on the amplifier front panel to the On middle position 2 Allow the amplifiers to warm up for at least 5 minutes before taking power readings Installation and Service Manual G3L 850...

Page 24: ...044 05117 This Page Intentionally Blank 3 4 Installation and Service Manual G3L 850 135 Multi Carrier Power Amplifier...

Page 25: ...s the maximum frequency band that a set of two or more signals can occupy The amplifier s instantaneous bandwidth is set automatically and does not require any manual setup The amplifier provides a ga...

Page 26: ...d by 180 degrees and amplified in the pre main amplifier The output from the pre main amplifier is fed to the class AB main amplifier The signal output from the main amplifier is sampled using a coupl...

Page 27: ...frequency phase and amplitude is known The basic idea of injecting a pilot tone is that if the pilot signal is suppressed at the amplifier output then the distortion created by the main amplifier is...

Page 28: ...overs when the output power drops below the rated maximum output power Records APC event and auto recovery event if auto recovery successful Input Overdrive Disable the MCPA immediately if the input R...

Page 29: ...al DC fault event system disable event each auto recovery event Internal DC Fail Internal voltages fail or out of range Minor no LED display Auto recovery once the voltage is within the range No shutd...

Page 30: ...044 05117 This Page Intentionally Blank 4 6 Installation and Service Manual G3L 850 135 Multi Carrier Power Amplifier...

Page 31: ...at ti io on n C Ch he ec ck k R RF F c co on nn ne ec ct to or rs s t to o e en ns su ur re e t th ha at t t th he ey y a ar re e t ti ig gh ht t P Pe er rf fo or rm ma an nc ce e T Te es st ts s 12...

Page 32: ...5 MHz band from 869 MHz to 894 MHz Select evenly spaced F1 F2 F3 and F4 frequencies that cover the instantaneous bandwidth of your system To check amplifier performance proceed as follows WARNING Do n...

Page 33: ...648 A HP 437B Signal Source Power Meter TEST CONFIGURATION A Figure 5 1 Amplifier Test Setup Diagram Configuration A 5 4 2 Gain Test 1 Disconnect a Spectrum analyzer b Signal source c Power Meter and...

Page 34: ...to test equipment specifications Network Analyzer TEST CONFIGURATION B 04 0263B A PORT 1 HP 8753 D PORT 2 Figure 5 2 Amplifier Test Setup Configuration B 5 4 3 Input Return Loss 1 Retain the test con...

Page 35: ...Data Test Specification Min Max Data RF Gain Vcc 27 Vdc PO See table 1 4 Freq 869 894 MHz 62 5 0 dB 63 5 dB Spurious Emissions Vcc 27 Vdc PO See table 1 2 869 894 MHz Band 62 dBc Gain Flatness Vcc 27...

Page 36: ...Department at 714 466 1000 to obtain this number or FAX your request to 714 466 5800 Failure to obtain this RMA number may result in delays in receiving repair service 5 5 2 Repackaging For Shipment T...

Page 37: ...C Automatic Power Control APTT Analog Push To Talk ASG Applications Support Group ASIC Application Specific Integrated Circuit ATE Automatic Automated Test Equipment ATP Acceptance Test Procedure ATTE...

Page 38: ...lectroMagnetic Compatibility EMI ElectroMagnetic Interference EPROM Electrically Programmable Read Only Memory Erasable Programmable Read Only Memory ESD ElectroStatic Discharge ESG Electronic Signal...

Page 39: ...Linear Discrete Amplifier Class A or AB LGL Lower Guardband Limit LMR Land Mobile Radio LMS Land Mobile Systems LNA Low Noise Amplifier LO Local Oscillator LPA Linear Power Amplifier LPF Low Pass Fil...

Page 40: ...ame PAR Peak to Average Ration PCB Printed Circuit Board PCMCIA Personal Computer Memory Card International Association PCN Personal Communications Network PCS Personal Communications Services Persona...

Page 41: ...Square Rx Receive Receiver SCHPA Single Channel High Power Amplifier SCPA Single Channel Power Amplifier SIM System Interface Module SMA SubMiniature Type A coaxial connector SMT Surface Mount Techno...

Page 42: ...Unit Under Test VADJ Voltage ADJust signal name frequently found on schematic or block diagrams VBW Video BandWidth VCO Voltage Controlled Oscillator VFWD Voltage ForWarD signal name frequently found...

Page 43: ...gth dB Loss estimate For existing sites BTS jumper from BTS top to feedline on tower Shelter exit on up tower Jumper to antenna Overall feedline loss estimate from BTS to Antenna _____________________...

Page 44: ...lifier cabinet output to antenna feedline Length Other Type Length Required Cables non RF AC wiring from panel to power amplifier cabinet Length Interconnecting alarm wire and connection Length Ground...

Page 45: ...here power amplifier cabinet output will connect to Power mains circuit breaker panel shows adequate capacity for breakers Misc pictures showing tower and site access Installation and Service Manual G...

Page 46: ......

Page 47: ...044 05117 This Page Left Blank...

Page 48: ...52 2512 6123 Fax 852 2575 4860 Corporate Headquarters Powerwave Technologies In 1801 E c ast St Andrew Place Santa Ana CA 92705 USA Tel 714 466 1000 Fax 714 466 5800 www powerwave com Copyright Octobe...

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