B A S E S TAT I O N S O L U T I O N S M C PA I N S T A L L AT I O N A N D S E R V I C E M A N U A L 0 4 4 - 0 5 3 6 9 R E V.
© 2009 Powerwave Technologies Incorporated. All rights reserved. Powerwave Technologies, and the Powerwave logo are registered trademarks. T 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 T 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. AF WARNING: This warning symbol means danger. You are in a situation that could cause bodily injury or death.
Revision Record Revision Letter Reason for Change May 2009 Initial Release D R AF T A Date of Change ii 044-05369 Rev A
Table of Contents Warnings, Cautions, and Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i Revision Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Product Description T Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
List of Figures 2-1 2-2 MCPA Front and Rear Views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 MCPA Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 3-1 3-2 MCPA Controls and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 MCPA Interface Connector . . . . . . . . . . . . . . . . . . . . . . . .
G3L-2129-140 MCPA Introduction Chapter 1 Product Description Introduction This manual contains information and procedures for the installation, operation, and maintenance of the G3L-2129-140 Multi-Carrier Power Amplifier (MCPA). Scope of Manual Chapter 1 - Product Description Chapter 2 - Controls and Indicators AF Chapter 3 - Installation T This manual is intended for use by service technicians familiar with similar types of equipment.
G3L-2129-140 MCPA Rear R Front AF T Functional Description D Figure 1-1 MCPA Front and Rear Views 1-2 044-05369 Rev A
G3L-2129-140 MCPA Functional Description FIRST LOOP SECOND LOOP Pilot Tone First Loop Phase and Gain Delay Filter Main Amplifier Premain Amplifier RF Out RF Sample Pilot Tone Generator RF In Preamp First Loop Control Error Out Second Loop Phase and Gain Delay First Loop Detection Second Loop Control Forward Power / Pilot Tone Detect Reflected Power (VSWR) +27 VDC T Controller -5 +15 +9 +5 VDC VDC VDC VDC Error Amplifier System Faults AF Front Panel Status User Interface LED Cont
Cooling G3L-2129-140 MCPA The primary function of the second loop is to amplify the error signal to cancel out spurious products developed in the main amplifier. The input signal is amplified by a preamplifier and fed to a coupler and delay line. The signal from the coupler is fed to the attenuator and phase shifter in the first loop. The second loop control section obtains a sample of the distortion added to the output signals by the main amplifiers.
Chapter 2 Controls and Indicators Introduction This chapter contains descriptions of the G3L-2129-140 Multi-Carrier Power Amplifier (MCPA) controls and indicators. MCPA Controls and Indicators Multi-color LED Status Indicator R AF OFF/ON/RESET Switch T 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-2129-140 MCPA MCPA Alarms MCPA alarm conditions are reported to the system as logic level signals through the rear connector. The front panel LED provides a visual reference for the operator of MCPA status. Refer to Table 2-1 for a listing of LED status. Refer to Table 2-2 for a listing of Alarm states. Table 2-2 MCPA Alarm States Alarm Definition Alarm type/LED Auto-Recovery Disables MCPA immediately if output power is >+2 dB over rated output RF power.
G3L-2129-140 MCPA MCPA Controls and Indicators 1 2 3 4 5 6 7 8 9 A1 A2 A3 A4 10 11 12 13 14 15 16 17 Figure 2-2 MCPA Interface Connector Table 2-3 MCPA Connector Pin Assignments Pin Function Pin Function 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 Pow
G3L-2129-140 MCPA T MCPA Controls and Indicators D R AF This page intentionally left blank.
Chapter 3 Installation Introduction This chapter contains unpacking, inspection, startup and installation procedures for the G3L-2129-140 MultiCarrier 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 T Perform the steps in Table 3-1 to unpack and inspect the MCPA.
Initial Start-up and Operating Procedures G3L-2129-140 MCPA Table 3-2 MCPA Installation Steps Step Action 1 Set MCPA OFF/ON/RESET switch to the OFF (down) position. 2 Ensure quarter-turn fasteners are in unlocked position. 3 Lift and insert MCPA into the subrack. Turn the quarter-turn fasteners to locked position to secure MCPA into subrack.
Chapter 4 Maintenance Introduction This chapter contains instructions for periodic maintenance, testing and troubleshooting for the G3L-2129-140 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-2129-140 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-2129-140 MCPA are listed in Table 5-1.. Table 5-1 Specifications Electrical Specifications/Features Operating Frequency Band 2110-2170 MHz Instantaneous Bandwidth 45 MHz Air Interface CDMA, W-CDMA, LTE RF Output Power 140 W with crest factor reduced signals CCDF 1e-4 <= 9.0dB 125 W with Gaussian signals CCDF 1e-4 10.
T AF R D Worldwide Corporate Headquarters 1801 East St. Andrew Place Santa Ana, CA 92705 USA +1 714 466 1000 +1 714 466 5800 FAX www.powerwave.com Main European Office Knarrarnasgatan 7 8tr. 164 40 Kista, Sweden +46 8-540-822-00 +46 8-540-824-91 FAX Main Asia-Pacific Office 23 F Tai Yau Building 181 Johnston Road Wanchai, Hong Kong +852 2512 6123 +852 2575 4860 FAX Powerwave Technologies, Inc. All rights reserved.
