Powerwave Technologies G3L-850-135 User manual

G3L-850-135 Multi-Carrier
Power Am
p
lifie
r
Service and Installation
Manual
044-05117
December 2004

044-05117
© 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.
This Powerwave product is designed to operate within the Normal Operating (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 requirements; (2) the equipment to be automatically removed from service
when maximum thresholds are exceeded; or (3) the equipment to not perform in accordance with
its specifications. It is the Operator's responsibility to ensure this equipment is properly installed
and operated within Powerwave operating specifications to obtain proper performance from the
equipment and to comply with regulatory requirements.
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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.
WARNING
This warning 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 standard practices
for preventing accidents.
CAUTIO
NThis caution symbol means reader, be careful. In this situation, the user might do
something that could result in equipment damage or loss of data.
Note This note symbol means reader, take note. Notes contain helpful suggestions or
references to material not covered in the document. Procedures are not contained in
notes.

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Revision Record
Revision Record
Revision Letter Date of Entry Reason for Change
A December, 2004 Original version of product
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Table of Contents
Chapter No. Title Page
Chapter 1 General Description 1-1
1-1 Introduction...................................................................................................................1-1
1-2 General Description......................................................................................................1-1
1-3 Functional and Physical Specifications........................................................................1-2
1-4 Ordering Information ....................................................................................................1-5
1-5 General Safety..............................................................................................................1-6
1-5.1 Lifting Standards...........................................................................................................1-6
1-5.1.1 Power Plant..................................................................................................................1-6
1-5.1.2 Electronic Modules.......................................................................................................1-6
1-5.1.3 Electrostatic Discharge................................................................................................. 1-6
Chapter 2 Installation 2-1
2-1 Introduction...................................................................................................................2-1
2-2 Site Survey...................................................................................................................2-1
2-3 Electrical Service Recommendations...........................................................................2-1
2-4 Air Conditioning............................................................................................................2-2
2-5 Unpacking and Inspection............................................................................................2-3
2-6 Installation Instructions.................................................................................................2-4
2-6.1 Installing the Amplifier into the Subrack.......................................................................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 Indicator and RESET/On/Off Toggle Switch.............................................3-1
3-2.3 RJ-11 PC Interface.......................................................................................................3-2
3-3 Initial Start-Up and Operating Procedures...................................................................3-2
Chapter 4 Principles of Operation 4-1
4-1 Introduction...................................................................................................................4-1
4-2 RF Input Signal.............................................................................................................4-1
4-3 RF Output Load............................................................................................................4-1
4-4 Functional Description..................................................................................................4-1
4-4.1 Preamplifier ..................................................................................................................4-2
4-4.2 Main and Error Amplifiers.............................................................................................4-2
4-4.3 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
4-5 Amplifier Module Cooling .............................................................................................4-3
4-6 Power Distribution ........................................................................................................4-3
4-7 Amplifier Alarms ...........................................................................................................4-4
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Chapter 5 Maintenance 5-1
5-1 Introduction................................................................................................................... 5-1
5-2 Periodic Maintenance................................................................................................... 5-1
5-3 Test Equipment Required For Test.............................................................................. 5-1
5-4 Amplifier Performance Test.......................................................................................... 5-2
5-4.1 Amplifier Spurious Emissions Test:.............................................................................. 5-2
5-4.2 Gain Test:..................................................................................................................... 5-3
5-4.3 Input Return Loss:........................................................................................................ 5-4
5-4.4 Test Data Sheet ........................................................................................................... 5-5
5-5 Return For Service Procedures.................................................................................... 5-6
5-5.1 Obtaining An RMA........................................................................................................ 5-6
5-5.2 Repackaging For Shipment.......................................................................................... 5-6
Appendix A Abbreviations and Acronyms 1
Appendix 2 General Site Survey Form 1
List of Figures
Figure No. Figure Title Page
Figure 1-1. 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 Amplifier Bottom View............................................................... 1-4
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. Functional Block Diagram.......................................................................................... 4-2
Figure 5-1. Amplifier Test Setup Diagram – Configuration A....................................................... 5-3
Figure 5-2. Amplifier Test Setup – Configuration B..................................................................... 5-4
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List of Tables
Table No. Table Title Page
Table 1-1. General Operating Parameters...................................................................................1-1
Table 1-2. G3L-850-135 Amplifier Specifications.........................................................................1-2
Table 1-3. Major System Components........................................................................................1-5
Table 2-1. Sample of DC Cable Ratings ......................................................................................2-1
Table 2-2. 4-Way Combining Averaged DC Current Load...........................................................2-2
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. Periodic Maintenance..................................................................................................5-1
Table 5-2. Test Equipment Required............................................................................................ 5-2
Table 5-3. Amplifier Performance Data........................................................................................5-5
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Chapter 1 General Description
1-1 Introduction
This manual contains information and procedures for installation and servicing of Powerwave’s G3L-850-135
Amplifier. The manual is organized into two chapters as follows:
Chapter 1 General Description Chapter 4 Principles of Operation
Chapter 2 Installation Chapter 5 Maintenance
Chapter 3 Operating Instruction Appendix A Glossary of Terms
1-2 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
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 Operating Parameters
Characteristic Performance Remarks
Operating Frequency Band 869 MHz to 894 MHz
Instantaneous Bandwidth 25MHz
Gain 63 dB
Spurious Performance ITU-R SM329-9, Category A Non-carrier related
Receive Band Noise -98 dBm/Hz In RX channels associated with RF
input terminated into 50 Ω.
Supply Voltage 21 Vdc to 30 Vdc Nominal +27 Vdc. Degraded mode of
operation at less than 26 Vdc.
Heat Output 3,074 BTU At full rated power
Carrier Types
GSM (up to 12 carriers) or
EDGE +GSM (up to 4 carriers for
each)
WCDMA (up to 4 carriers)
GSM 11.21
TS 25.141
3GPP2 C.S0010-B
Storage Temperature -40 - +85 °C
Ambient Temperature -33 - + 50 °C
Altitude -50 - +4,000 m
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1-3 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);
-11.91 dBm max. -6.0 dBm or greater causes input
overdrive shutdown.
Total Output Power 135 Watts (7GSM and 1EDGE) @27Vdc
120 Watts (GSM/EDGE) @26Vdc to 30Vdc
110 Watts (W-CDMA) @26Vdc to 30Vdc
Intermodulation Distortion
and In-Band Spurious: -65 dBc (Min) @ +26 to +28 Vdc @ 135 Watts; 600 KHz channel spacing within 25 MHz bandwidth*
RF Gain at 869 to 894 MHz 63 dB ±1 dB
Gain Flatness: ±0.5 dB @ 27 Vdc ±1 Vdc
Gain Variation Over Temperature: ±0.5 dB from 26 Vdc to 28 Vdc over -20°to +50°C
Output Protection: Mismatch protected
Input Port Return Loss: Equal to or greater than 14dB
Out of Band Spurious: Better than -60 dBc, +26 Vdc to +28 Vdc
Duty Cycle: Continuous
DC Input Power:
+27 Vdc ±1 Vdc, 34.1 Amps typical, 36 Amps max @ 135
Watts; operational range +21.0 Vdc to 30 Vdc amplifier will
disable at < 20.5 Vdc or > +30.5 Vdc.
Operating Temperature: -33 ºC. to +50 ºC.
Storage Temperature: -40 ºC. to +85 ºC.
Operating Humidity: 5 % to 95 % relative humidity (non-condensing)
Storage Humidity: 5 % to 95 % relative humidity (non-condensing)
RF Input / Output / Status / Alarm /
Control / DC Input Connectors: 21-Pin D-Subminiature combo connector
Maintenance Port RJ-11, RS-232 signaling (for factory use only)
Switches Reset/On/Off Switch
Indicators:
STATUS LED; Green (normal), Yellow (minor alarm), Red (critical alarm)
Dimensions: 35.46 cm wide, 9.56 cm high, 45.0 cm deep (including
handles)
Weight: 12.97 kg
Note
This Powerwave product is designed to operate within the normal operating (typical operating)
ranges or conditions specified in this document. Operation of this equipment beyond the
specified ranges may cause (1) spurious emissions that violate regulatory requirements; (2)
the equipment to be automatically removed from service when maximum thresholds are
exceeded; or (3) the equipment to not perform in accordance with its specifications. It is the
operator's responsibility to ensure this equipment is properly installed and operated within
Powerwave operating specifications to obtain proper performance from the equipment and
to comply with regulatory requirements.
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Figure 1-1. Model G3L-850-135 Amplifier Front Isometric View
Figure 1-2. Model G3L-850-135 Amplifier Rear Isometric View
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Figure 1-3. Model G3L-850-135 Amplifier Side View
Figure 1-4. Model G3L-850-135 Amplifier Bottom View
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Figure 1-5. Model G3L-850-135 Amplifier Front Panel
1-4 Ordering Information
Table 1-3 lists major system component numbers and descriptions for use in ordering amplifiers or
components.
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
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1-5 General Safety
This paragraph describes safety practices when handling certain components.
1-5.1 Lifting Standards
The handling of the power amplifier cabinet and its subassemblies involves heavy lifting. Various methods of
lifting must be employed to safely and properly install this equipment. The following web site addresses are
provided as references to OSHA personnel lifting guidelines:
http://www.osha.gov/SLTC/etools/electricalcontractors/materials/heavy.html
http://www.cdc.gov/niosh/pdfs/94-110.pdf
Lifting of heavier modules may require two people in awkward work environments, whereas only one person
might otherwise be able to safely lift the module. Be aware of the environmental impact on lifting and twisting
while moving heavier materials.
The Amplifier weighs 12.97 kg (28.5 lb) and can normally be lifted by one person.
1-5.1.1 Power Plant
Only qualified electricians, certified to work on high voltages (176 to 264 Vac; 150 A), should perform
installation and maintenance to the cabinet and rectifier inputs. Failure to follow safe practices may result in
equipment damage, personal injury or death.
Never remove bare DC power wires from equipment or allow bare DC voltage wires to dangle freely in the
cabinet. Prior to removal of equipment that necessitates dangling of DC wires, disconnect DC power at the
LVD and turn the rectifiers off. 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 Electronic Modules
Electronic modules should be turned off before removal, when an on/off switch is provided. For example, the
amplifier module draws up to 26 amperes of current with no RF energy applied. Failure to turn the amplifier
module off before removal will cause arching between the amplifier module and the amplifier subrack,
resulting in damage to both pieces of equipment.
RF energy should be turned off before removal or installation of RF cables. Failure to RF energy may result in
equipment damage or personal injury.
Electronic modules should be turned off before removal or installation of electronic interconnecting cables.
1-5.1.3 Electrostatic Discharge
The power amplifier cabinet contains modules and components that are sensitive to static electricity. Two
Electrostatic Discharge (ESD) service points are incorporated in the cabinet frame. One service point is
located in the interior front electronics compartment about half way down the right hand vertical rail. The other
service point is located in the interior rear electronics compartment about half way down the left hand vertical
rail.
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.
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Chapter 2 Installation
2-1 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.
Also, read and review the operating procedures in chapter 3 prior to installing the equipment. If
applicable, carefully review the government and local codes as they apply to your installation.
2-2 Site Survey
Powerwave Technologies recommends that site surveys be performed by qualified individuals or
firms prior to equipment ordering or installation. Performing a detailed site survey reduces or
eliminates installation and turn-up delays caused by oversights. Pay particular attention to power
plant capacity, air conditioning needs, and RF/DC cabling/breaker requirements.
2-3 Electrical Service Recommendations
Powerwave Technologies recommends that proper AC line conditioning and surge suppression
be provided on the primary AC input to the +27 Vdc power source. Install all electrical service in
accordance with applicable local codes and good engineering practice. Give special
consideration to lightning protection of all systems, given the vulnerability of most transmitter sites
to lightning. Lightning 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. Follow the appropriate standards in the
National Electrical Code (NEC) and codes for your area, and observe the cable manufacturer’s
recommendations for proper cable selection.
Table 2-1. Sample of DC Cable Ratings
Copper Aluminum
3 Cond. In Raceway Single Conductor In Free Air 3 Cond. In Raceway Single Conductor In Free Air
mm2
90°C 110°C 90°C 110°C 125°C 200°C 90°C 110°C 90°C 110°C 125°C 200°C
2 25 30 30 40 40 45 -- -- -- -- -- --
3 30 35 40 50 50 55 25 25 30 40 40 45
5 40 45 55 65 70 75 30 35 45 50 55 60
8 55 60 75 85 90 100 40 45 55 65 70 80
13 70 80 100 120 125 135 55 60 80 95 100 105
21 95 105 135 160 170 180 75 80 105 125 135 140
34 125 135 185 210 225 240 100 105 140 165 175 185
42 145 160 215 245 265 280 110 125 165 190 205 220
53 165 190 250 285 305 325 130 150 190 220 240 255
Based on ambient temperature of 30°C (86°F) 100% Load Factor
Source: Industrial Electric Wire & Cable Inc., Technical Guide Vol. 4M 11/99, Table III Suggested Ampacities - All Types
of Insulations; Based on National Electric Code
Each amplifier system should have its own circuit breaker, so a failure in one does not shut off
the whole installation. Circuit breakers should be capable of handling the anticipated inrush
current, in a load center with a master switch. Powerwave recommends that a 50 A circuit
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breaker be installed in the power distribution unit for each amplifier. DC wire smaller than 8 mm2
90°C copper should not be installed. Each amplifier should have its own DC cable pair. Refer to
Table 2-1.
According to the laws of probability used to formulate Erlang tables, rarely are all channels
transmitting at the same time. We can use Erlang tables to predict typical maximum current
usage. Table 2-2 and Table 2-3 describe the current load (at 120 Watts typical) for a 3 sector
(70%), 2 sector (80%) and omni (90%) site in two different configurations. Based on table 2-2, a
600-ampere power plant may suffice in a macro-cell site, whereas, a 200-ampere or smaller
power plant may be adequate in a micro-cell site, based on the equipment configuration.
Battery backup or UPS systems should be installed in remote sites or in sites that experience
brownout conditions or generator switchovers. Adding this equipment should eliminate the need
for site visits by technicians after brownouts or power outages. Battery backup systems also
provide excellent DC filtering 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% Typical
120 12 *348 A 409 A
120 8 *232 A *254 A 273 A
120 4 *116 A *127 A *130 A 136 A
120 1 *29 A *32 A *33 A 34 A
* typical, based on given % of output power)
Table 2-3. 4-In/4-Out Non-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% Typical
120 4 *99 A *114 A
120 3 *87 A *95 A *102 A
120 2 *58 A *63 A *65 A *68 A
120 1 *29 A *32 A *33 A *34 A
* typical, based on given % of output power)
2-4 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.
In keeping with Paragraph 2-3, Table 2-4 and Table 2-5 describe the heat load (at 120 Watts
typical) for a 3-sector (70%), 2-sector (80%), omni (90%), and typical (100%) site. Perform a site
survey to determine actual air conditioning needs.
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Table 2-4. 4-Way Combining Averaged Heat Loading
Amplifier
Power No. Of Amplifiers 3-Sector (70%) Averaged
BTU/hour
2-Sector (80%)
Averaged
BTU/hour
1-Sector (90%)
Averaged
BTU/hour
100%
Typical
BTU/Hour
120 12 28,791 32,793
120 8 19,194 20,638 21,862
120 4 9,597 10,319 10,514 10,931
120 1 2,399 2,580 2,629 2,733
* typical, based on given % of output power
Table 2-5. 4-In/4-Out Non-combining Averaged Heat Loading
Amplifier
Power No. Of Amplifiers 3-Sector (70%) Averaged
BTU/hour
2-Sector (80%)
Averaged
BTU/hour
1-Sector (90%)
Averaged
BTU/hour
100%
Typical
BTU/Hour
120 4 9,585 10,585
120 3 7,198 7,739 8,198
120 2 4,799 5,160 5,257 5,465
120 1 2,399 2,580 2,629 2,733
* typical, based on given % of output power
2-5 Unpacking and Inspection
This equipment has been operated, tested, and calibrated at the factory. Only in the event of
severe shocks or other mistreatment should any substantial readjustment be required. Carefully
unpack each piece of equipment after it has reached the installation 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.
Retain all packing material to support any claim of shipping damage or for use in the event that
the equipment must be returned to the factory.
CAUTION Exercise care in handling equipment during inspection to prevent damage
caused by rough or careless handling. Some components are heavy. Follow
the guidelines set forth in Paragraph 1-5.1 when lifting heavy components.
Visually inspect the Amplifier for damage that may have occurred during shipment. Check for
evidence of water damage, bent or warped chassis, loose screws or nuts, or extraneous packing
material in the connectors or fans. Inspect male connectors on modules and harnesses for bent
connector pins.
Perform the following steps:
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).
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CAUTION
Before applying power, make sure that all connectors are secure. Make sure
that the input and output are properly terminated at 50 ohms. Do not operate
the system without a load attached. Refer to Table 1-2 for input power
requirements. Excessive input power may damage the equipment.
If the equipment is damaged:
• The carrier is your first area of recourse.
• A claim should be filed with the carrier once the extent of any damage is assessed. We
cannot stress too strongly the importance of IMMEDIATE careful inspection of the
equipment and the subsequent IMMEDIATE filing of the necessary claims against the
carrier, if necessary.
If the equipment is damaged and must be returned to the factory:
• Please write or phone for return authorization.
• Powerwave may not accept returns without a return authorization.
2-6 Installation Instructions
Install the G3L-850-135 amplifier as follows:
WARNING
Turn off external primary DC power before connecting 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 pins are recessed, packing material is removed, and that the
alignment shield is not bent.
b. Set the amplifier power Reset/On/Off switch to “Off” (down position) as shown in Figure
2-1.
CAUTION
Do not slam or force the amplifier into the subrack. This may cause the pins
on the 21-D sub connector of the amplifier to become recessed or broken.
Note Non-combining subracks are typically sector specific; ensure the amplifier is installed
to support the appropriate sector.
c. With the thumbscrews in the unlock position, install the amplifier(s) into the subrack.
There are no slot priorities in a combining subrack, so all slots function equally. To
secure the amplifier(s) in the subrack, turn the top and bottom thumbscrews to the lock
position as shown in Figure 2-1.
WARNING
Check your work before applying DC voltage to the amplifier. Make certain all
connections are tight and correct.
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2. Measure primary DC input voltage. DC input voltage should be +27 Vdc ±1.0 Vdc. If the DC
input voltage is above or below the limits, call and consult an electrician before you turn on
your amplifier system.
Refer to Chapter 3 for initial turn-on and checkout procedures.
Lock
Position
Unlock
Position
3-Position Switch:
Reset (Up)
On (Middle)
Off (Down)
Figure 2-1. Power Switch Functions and 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 on the rear of the amplifier. Pins are listed and described in Table 2-6. Alarms
are interpreted by the amplifier subrack and reported to the base station as a system level alarm.
A1 A2 A3 A4
1 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)
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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)
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