Related Manuals for Powerwave Technologies G3L-850-135
Summary of Contents for Powerwave Technologies G3L-850-135
- Page 1 G3L-850-135 Multi-Carrier Power Amplifier Service and Installation Manual 044-05117 December 2004...
- Page 2 © 2004 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.
- Page 3 044-05117 Warnings, Cautions, and Notes Warnings, cautions, and notes are found throughout this manual. The associated icons in warnings and cautions are used to quickly identify a potential condition that could result in the consequences described below if precautions are not taken. Notes clarify and provide additional information to assist the user.
- Page 4 044-05117 Revision Record Revision Record Revision Letter Date of Entry Reason for Change December, 2004 Original version of product Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 5 Alarm Monitoring and Control..................4-2 4-4.4 First and Second Loop Control Circuits ............... 4-3 4-4.5 Pilot Tone Generator ....................4-3 Amplifier Module Cooling ..................... 4-3 Power Distribution ......................4-3 Amplifier Alarms ......................4-4 Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 6 Figure 1-5. Model G3L-850-135 Amplifier Front Panel ..............1-5 Figure 2-1. Power Switch Functions and Unlocking/Locking Thumbscrews ....... 2-5 Figure 2-2. DC and Logic Connector (Male, on Rear of G3L-850-135 Amplifier Module)... 2-5 Figure 3-1. G3L-850-135 Controls and Indicators................ 3-1 Figure 4-1.
- Page 7 Table 2-3. 4-In/4-Out 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 Connector Specifications .......... 2-6 Table 3-1. Status Indicator Colors and Status................3-2 Table 4-1. G3L-850-135 Alarm States..................4-4 Table 5-1.
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Page 9: Chapter 1 General Description
Glossary of Terms General Description The G3L-850-135 Power Amplifier, shown in Figure 1-1 - Figure 1-5, operates in the 25 MHz frequency band from 869 MHz to 894 MHz with an instantaneous bandwidth of less than 25 MHz. The instantaneous bandwidth is the maximum frequency band in which any two or more signals can occupy .The amplifier’s... -
Page 10: Functional And Physical Specifications
044-05117 Functional and Physical Specifications Electrical, mechanical, and environmental specifications for the G3L-850-135 amplifier are listed in Table 1-2. Table 1-2. G3L-850-135 Amplifier Specifications Frequency Range 869-894 MHz; 25 MHz bandwidth (lowest to highest transmitted frequency) Minimum Channel Spacing 1 to 8 GSM carriers Total Maximum Input Power -12.21 dBm @ 135 Watts (to achieve rated power);... -
Page 11: Figure 1-1. Model G3L-850-135 Amplifier Front Isometric View
044-05117 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: Figure 1-3. Model G3L-850-135 Amplifier Side View
044-05117 Figure 1-3. Model G3L-850-135 Amplifier Side View Figure 1-4. Model G3L-850-135 Amplifier Bottom View Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 13: Ordering Information
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 Subrack *MCR41970-4-4 4-In/4-Out N+1 Non-combining Amplifier Subrack *Amplifier subracks sold and described separately Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 14: General Safety
ESD protective devices must be properly worn and connected to one of the cabinet ESD service points by technicians and installers during the performance of maintenance activities. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 15: Chapter 2 Installation
Installation Introduction This chapter contains unpacking, inspection, and installation instructions for the G3L-850-135 Multi-Carrier Power Amplifier (MCPA). It is important that the licensee perform the following tasks correctly. Carefully read all material in this chapter prior to equipment unpacking or installation. -
Page 16: Air Conditioning
* typical, based on given % of output power) Air Conditioning Each G3L-850-135 amplifier generates 3,074 BTUs of heat at full 135-Watt power. A 1-ton air conditioner offsets 12,000 BTU’s of heat. The G3L-850-135 amplifier is designed to operate within the extended low temperature and high temperature environments defined in table 1-2. -
Page 17: Unpacking And Inspection
1. Visually inspect the MCPA for damage that may have occurred during shipment. 2. Check for evidence of water damage, bent or warped chassis, loose screws or nuts, or extraneous packing material in the connector(s). Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 18: Installation Instructions
Figure 2-1. WARNING Check your work before applying DC voltage to the amplifier. Make certain all connections are tight and correct. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 19: Amplifier Module Power, Alarm, Control, And Rf Connector
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Figure 2-2. DC and Logic Connector (Male, on Rear of G3L-850-135 Amplifier Module) Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 20: Table 2-6. G3L-850-135 Amplifier Combo Connector Specifications
TX H (RS-485) System Reset TTL 21WA4 Connector TX L (RS-485) Description RX H (RS-485) AMP AO RX L (RS-485) AMP A1 AMP A2 MOD_DET Summary Fault MCPA Temp DC (On/Off) Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 21: Controls And Indicators
Controls and Indicators The controls and indicators for the G3L-850-135 Power Amplifier consist of the primary power RESET toggle switch, the LED STATUS indicator, and the RJ-11 PC Interface as shown in Figure 3-1. -
Page 22: Rj-11 Pc Interface
Failure to properly warm the amplifiers may result in lower output power, once the amplifiers reach operating temperature. b. Turn on the supply that provides +27 Vdc to the amplifier. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... - Page 23 Place the power 3-position (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-850-135 Multi-Carrier Power Amplifier...
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Page 25: Functional Description
044-05117 Chapter 4 Principles of Operation Introduction This chapter contains a functional description of the G3L-850-135 Multi-Carrier Power Amplifier (MCPA). RF Input Signal The maximum input power for all carrier frequencies to the amplifier should not exceed the limits specified in Table 1-2... -
Page 26: Preamplifier
The alarm logic controls the +5 Vdc bias voltage that shuts down the amplifier. During routine operation, all normal variations are automatically compensated for by the feed-forward loop control. However, when large variations occur beyond the adjustment range of the loop control, a Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 27: First And Second Loop Control Circuits
Primary DC power for the amplifier is provided by the host system. The amplifier module has a DC/DC converter and voltage regulator that converts the +27 Vdc to +15 Vdc, +5 Vdc, and -5 Vdc for internal use. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 28: Amplifier Alarms
Disable the MCPA Auto-recovery when the event, system disable immediately if the supply Major supply voltage increases to Voltage event, each auto DC voltage < +20.5 Vdc > +24 Vdc recovery event* Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... - Page 29 Linearization alarm occurs. Minor No auto-recovery. No Device One or more output power Records device fault shutdown until Linearization (no LED Fail devices fail event alarm occurs. display) Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
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Page 31: Periodic Maintenance
All RF test equipment required must be calibrated to 0.05 dB resolutions. Any Note deviation from the nominal attenuation must be accounted for and factored into all output readings. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 32: Amplifier Performance Test
4. Use the spectrum analyzer to measure the spurious emissions performance. 5. Record test data in Table 5-3. Verify that the data are within the specifications shown in Table 1-2. 6. Reduce the output of the signal source to minimum. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 33: Gain Test:
4. Switch on the amplifier under test, and ensure that the STATUS switch is in the center position. 5. Check the amplifier gain across the band from 869 MHz to 894 MHz. Gain should be as specified in Table 1-2. Record test data in Table 5-3. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 34: Input Return Loss
1. Retain the test configuration shown in Figure 5-2. 2. Read and record the S return loss measurement on network analyzer. Record test data in Table 5-3. 3. Switch off the amplifier under test. 4. Disconnect the test equipment. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 35: Test Data Sheet
PO = See table 1-2 ±0.5 dB 869 – 894 MHz Band Input Return Vcc = 27 Vdc Loss PO = See table 1-2 869 – 894 MHz Band PASS FAIL Tested by Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... -
Page 36: Return For Service Procedures
To ensure safe shipment of the amplifier, it is recommended that the original package designed for shipping the amplifier be reused. If it is not available, contact Powerwave’s Customer Service Department for packing materials. Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier... - Page 37 Base Station Base Transceiver Station (System) BandWidth °C Degrees Celsius Computer Aided Design {Circuit Card Assembly Counter ClockWise CDMA Code Division Multiple Access CDPD Cellular Digital Packet Data CTRL Control {ClockWise Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 38 Frequency Division Multiple Access Field Effect Transistor FHMA Frequency Hopping Multiple Access Frequency Modulation Field Replaceable Unit Frequency Shift Key modulation Gigahertz GMSK Gaussian Minimum Shift Keying GOLAY See GSC Golay Sequential Code Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 39 {MultiCarrier Power Amplifier {MultiChannel Power Amplifier MultiChannel Rack MFRM {Multiple Frequency Radio Mobile {Multifunction Frequency Radio Modulation Megahertz Master Switch Office MTBF Mean Time Between Failures MTSO Master Telephone Switch Office Measurement Uncertainty Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 40 {Phase Modulation {Preventive Maintenance Peak to Minimum Ratio Purchase Order Parts Per Million {PCS Single Channel {Product Serialization Code PSTN Public Switched Telephone Network Powerwave Technologies, Inc. Push To Talk PWAV PowerWAVe Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 41 To Be Determined (To Be Defined) TCXO Temperature Controlled crystal Oscillator {Temperature Drift {Temporary Deviation TDMA Time Division Multiple Access Transmit Receive Unit Transceiver (Transmit / Receiver) Unit Transmit, Transmitter Use As Is Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 42 Voltage ForWarD (signal name frequently found on schematic or block diagrams) VREFL Voltage REFLected (signal name frequently found on schematic or block diagrams) VSWR Voltage Standing Wave Ratio Voltage Variable Attenuator WCDMA Wideband Code Division Multiple Access Transmit XMTR Transmitter Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 43 Location On Roof Near Antenna? On Ground? Type of raised platform? Adequate space including ½ meter min jumper bend radius at power amplifier left side? Is a structural analysis needed? Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier A2-1...
- Page 44 • Wide view of BTS and proposed power amplifier cabinet location in same photo • Proposed power amplifier cabinet location shown with a 1 meter long ruler in view nearby A2-2 Installation and Service Manual - G3L-850-135 Multi-Carrier Power Amplifier...
- Page 45 • Existing feedline cable to antenna (where 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 - G3L-850-135 Multi-Carrier Power Amplifier A2-3...
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- Page 48 Tel: +852 2512 6123 Fax: +46 8 540 823 40 Fax: +852 2575 4860 ©Copyright October 2004, Powerwave Technologies, Inc. All Rights reserved. Powerwave, Powerwave Technologies, The Power in Wireless and the Powerwave logo are registered trademarks of Powerwave Technologies, Inc.
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