G3L-1929-160-001 Multi-Carrier Power Amplifier Installation and Service Manual 044-05305 Rev A August 2007
© 2007 Powerwave Technologies Incorporated. All rights reserved. Powerwave Technologies, and the Powerwave logo are registered trademarks. This Powerwave product is intended only for installation in a RESTRICTED ACCESS LOCATION and 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.
Warnings, Cautions, and Notes Warnings, Cautions, and Notes are found throughout this manual where applicable. The associated icons 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 or death.
Revision Record Revision Letter A ii Date of Change Reason for Change Aug 2007 Initial Release 044-05305 Rev A
Table of Contents Chapter 1 - Product Description Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents G3L-1929-160-001 List of Figures 1-1 MCPA Front and Rear Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1-2 MCPA Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2-1 MCPA Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1 Product Description Introduction This manual contains information and procedures for the installation, operation, and maintenance of the G3L-1929-160-001 Multi-Carrier Power Amplifier (MCPA). Scope of Manual This manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the equipment described and is current as of the printing date.
Functional Description G3L-1929-160-001 MCPA Rear Front Figure 1-1 MCPA Front and Rear Views 1-2 044-05305 Rev A
G3L-1929-160-001 MCPA Functional Description FIRST LOOP SECOND LOOP Pilot Tone First Loop Phase and Gain Premain Amplifier Delay Filter Main Amplifier RF Out RF Sample Pilot Tone Generator RF In Preamp First Loop Detection First Loop Control Error Out Second Loop Phase and Gain Delay Second Loop Control Forward Power / Pilot Tone Detect Reflected Power (VSWR) Controller -5 +15 +9 +5 VDC VDC VDC VDC +27 VDC Error Amplifier System Faults Front Panel Status User Interface LED Control O
Functional Description G3L-1929-160-001 MCPA Feed-forward Loop Control The primary function of the first loop is to amplify the carrier signals and isolate an error signal for the second loop. It does this by amplifying the carrier signals and isolating an error signal which is passed to the second loop. The first loop control section phase shifts the main input signals by 180 degrees and constantly monitors the output for correct phase and gain.
G3L-1929-160-001 MCPA Functional Description Power Distribution The host system provides +26 to 28 VDC power for the MCPA. The DC/DC converter and voltage regulator in the MCPA converts the +27 VDC to +15 VDC, +9 VDC, +5 VDC, and -5 VDC for internal use. The MCPA has no built-in short-circuit protection. The MCPA operates at full power if the system DC supply is within 26 to 30 VDC. The MCPA shuts down if the applied DC power is less than 20.5 VDC or greater than 30.5 VDC.
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Chapter 2 Controls and Indicators Introduction This chapter contains descriptions of the G3L-1929-160-001 Multi-Carrier Power Amplifier (MCPA) controls and indicators. MCPA Controls and Indicators The location of the MCPA controls and indicators are illustrated in Figure 2-1 and listed with descriptions in Table 2-1.
MCPA Controls and Indicators G3L-1929-160-001 MCPA Table 2-1. MCPA Controls and Indicators Controls and Indicators Description Toggle Switch, Three Position RESET (Up) Resets MCPA. LED indicates boot mode (red), then turns solid green ON (Center) Enables MCPA. LED indicates solid green OFF (Down) Disables MCPA.
G3L-1929-160-001 MCPA MCPA Controls and Indicators Table 2-2 MCPA Alarm States (Continued) Alarm Definition Alarm type/LED Auto-Recovery Exceed Maximum Voltage Disables MCPA immediately if supply DC voltage > +30.5 VDC. Major (Red) Auto-recovery when supply voltage drops to < +29.5 VDC. Below Minimum Voltage Disables MCPA immediately if supply DC Voltage < +20.5 VDC Major (Red) Auto-recovery when supply voltage increases to >+24.
MCPA Controls and Indicators G3L-1929-160-001 MCPA Table 2-3 MCPA Connector Pinouts Pin 2-4 Function Pin Function A1 RF Input (Coaxial Contact) 8 Summary_Fault A2 +27 VDC (Power Contact) 9 DC (On/Off) A3 Ground (Power Contact) 10 NC A4 RF Output (Coaxial Contact) 11 NC 1 TX_H (RS-485) 12 NC 2 TX_L (RS-485) 13 NC 3 GND 14 NC 4 RX_H (RS-485) 15 NC 5 RX_L (RS-485) 16 HPE (High Power Enable) 6 GND 17 NC 7 MOD_DET (Module Detection) 044-05305 Rev A
Chapter 3 Installation Introduction This chapter contains unpacking, inspection, startup and installation procedures for the G3L-1929-160-001 Multi-Carrier Power Amplifier (MCPA). • Review this chapter prior to equipment installation. • Review any government and local codes applicable to this installation. • Read the instructions in this Chapter and Chapter 4 before operating the equipment. Unpacking and Inspection Perform the steps in Table 3-1 to unpack and inspect the MCPA. Table 3-1.
MCPA Installation Instructions G3L-1929-160-001 MCPA The modular MCPA can be installed in a variety of systems. All system connections to the MCPA are made through the MCPA rear connector, no additional wiring is required. Perform the steps in Table 3-2 to install the MCPA. Refer to Figure 3-1 for quarter-turn fastener position and switch location. Table 3-2 MCPA Installation Step Action 1 Set MCPA OFF/ON/RESET switch to the OFF (down) position.
G3L-1929-160-001 MCPA Initial Start-up and Operating Procedures Initial Start-up and Operating Procedures Perform the MCPA initial start-up per the instructions in Table 3-3. CAUTION: Before applying power, ensure input and output cables are properly terminated at the Duplexer front panel. Do not operate MCPA without a load attached. Excessive input power may damage the MCPA. Refer to Chapter 5 for input power requirements.
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Chapter 4 Maintenance Introduction This chapter contains instructions for periodic maintenance, testing and troubleshooting for the G3L-1929-160-001 Multi-Carrier Power Amplifier (MCPA). Periodic Maintenance NOTE Check your sales order and equipment warranty before attempting to service or repair unit. Do not break seals on equipment under warranty or warranty will be null and void. Do not return equipment for warranty or repair service until proper shipping instructions are received from factory.
MCPA Removal and Replacement G3L-1929-160-001 MCPA MCPA Removal and Replacement Perform the instructions in Table 4-3 to remove and replace a MCPA. CAUTION: Do not slam the MCPA into the system during installation. Using excessive force can damage the MCPA connector. CAUTION: When removing the MCPA from the system, support the MCPA to prevent the rear of the MCPA from suddenly dropping when the guide rail disengages from the track. Dropping the MCPA can damage the rear multi-pin connector.
Chapter 5 Specifications Multi-Carrier Power Amplifier Specifications The performance and physical specifications for the G3L-1929-160-001 MCPA are listed in Table 5-1. . Table 5-1. MCPA Specifications Electrical Specifications/Features Operating Frequency Band 1930-1995 MHz Instantaneous Bandwidth 65 MHz Air Interface CDMA, CDMA-2000, 1X-EVDO RF Output Power 160 W Max. Nominal 150 W Max.
Multi-Carrier Power Amplifier Specifications G3L-1929-160-001 MCPA Table 5-1. MCPA Specifications (Continued) Controls Three position toggle switch: OFF/ON/RESET. Alarm Indication LED; Green (normal), Yellow (minor alarm), Red (Major alarm). Platform Compatibility G3L-1929-160-001 will reduce power level to G3L-1929-120 levels if placed in a G3L-1929-120 subrack. PA will perform at rated power levels with Software upgrade for subrack.
Powerwave Installation and Service Manual Worldwide Corporate Headquarters 1801 East St. Andrew Place Santa Ana, CA 92705 USA Tel: 714-466-1000 Fax: 714-466-5800 www.powerwave.com Main European Office Knarramasgatan 7 8tr 164 40 Kista, Sweden Sweden Tel: +46 8 540 822 00 Fax: +46 8 540 824 91 Main Asia-Pacific Office 23 F Tai Yau Building 181 Johnston Road Wanchai, Hong Kong Tel: +852 2512 6123 Fax: +852 2575 4860 ©Copyright 2007, Powerwave Technologies, Inc. All Rights reserved.
