User's Manual
Table Of Contents
- Table of Contents
- List of Figures
- List of Tables
- Foreword
- FCC Requirements
- General Safety
- Revision History
- Patent Notification
- Chapter 1 Introduction
- Chapter 2 Preliminary Operations
- Chapter 3 Optimization/Calibration
- Optimization/Calibration - Introduction
- Isolate Span Lines/Connect LMF
- Preparing the LMF
- Using CDMA LMF
- Download the BTS
- CSM System Time/GPS and LFR/HSO Verification
- Test Equipment Set-up
- Test Set Calibration
- Bay Level Offset Calibration
- RFDS Set-up and Calibration
- BTS Redundancy/Alarm Testing
- BTS Alarms Testing
- Preliminary Operations: Overview
- Pre-Power-up Tests
- Initial Power-up Tests
- Chapter 4 Automated Acceptance Test Procedure
- Automated Acceptance Test Procedures - All-inclusive TX & RX
- TX Output Acceptance Tests: Introduction
- TX Spectral Purity Transmit Mask Acceptance Test
- TX Waveform Quality (rho) Acceptance Test
- TX Pilot Time Offset Acceptance Test
- TX Code Domain Power/Noise Floor Acceptance Test
- RX Frame Error Rate (FER) Acceptance Test
- Generate an ATP Report
- Chapter 5 Prepare to Leave the Site
- Chapter 6 Basic Troubleshooting
- Basic Troubleshooting Overview
- Troubleshooting: Installation
- Troubleshooting: Download
- Troubleshooting: Calibration
- Troubleshooting: Transmit ATP
- Troubleshooting: Receive ATP
- Troubleshooting: CSM Check-list
- C-CCP Backplane Troubleshooting
- Module Front Panel LED Indicators and Connectors
- Basic Troubleshooting - Span Control Link
- Appendix A Data Sheets
- Appendix B PN Offset/I & Q Offset Register Programming Information
- Appendix C FRU Optimization/ATP Test Matrix
- Appendix D BBX Gain Set Point vs. BTS Output
- Appendix E CDMA Operating Frequency
- Appendix F PCS Interface Setup for Manual Testing
- Appendix G VSWR
- Appendix H Download ROM Code
- Appendix I In-Service Calibration
- Appendix J GPIB Addresses
- Introduction
- HP437 Power Meter GPIB Address
- Gigatronics 8541C Power Meter GPIB Address
- Motorola CyberTest GPIB Address
- HP8935 Test Set GPIB Address
- Setting HP8921A and HP83236A/B GPIB Address
- Advantest R3465 GPIB Address
- RS232 GPIB Interface Box
- Advantest R3267 Spectrum Analyzer GPIB Address
- Agilent E4406A Transmitter Tester GPIB Address
- Index
BTS Redundancy/Alarm Testing68P09255A61-4
Aug 2002
1X SC 4812T BTS Optimization/ATP Software Release 2.16.1.x
FIELD TRIAL
3-99
LPA Redundancy Test
Follow the procedure in Table 3-53 to verify redundancy of the LPAs.
WARNING
First verify there are no BBX channels keyed BEFORE
moving the antenna connection. Failure to do so can result in
serious personal injury and/or equipment damage.
Table 3-53: LPA Redundancy Test
Step Action
1 From the pulldown menu select:
Device>BBX/MAWI>Set Redundant Sector>Carrier-#-1-1
Device>BBX/MAWI>Set Pilot Only>Carrier-#-1-1
Device>BBX/MAWI>Set Pilot Gain> Carrier-#-1-1 and Pilot Gain = 262
2 Key-up the BBX assigned to the LPAs associated with the sector under test (gain = 40).
3 Adjust the communications test set spectrum analyzer, as required, to observe the overall carrier
amplitude and IM Shelf and note for reference. These figures will be required later.
NOTE
See Figure 3-14 for test equipment setup, if required.
4 Push-in and release the breaker supplying the 1st LPA of the pair.
NOTE
After power is removed, IM suppression takes a few seconds to settle out while compensating for the
removal of the 1st LPA. The overall gain decreases by approximately 6 dB. The process must be
complete before proceeding.
5 Verify:
• The other LPA module did not go OOS due to the loss of the LPA.
• The overall carrier amplitude is reduced by approximately 6 dB and IM suppression on the analyzer
display remains basically unchanged.
• LPA fault message is reported via the MGLI and displayed on the alarm monitor.
6 Re-apply power to the LPA module and observe the alarm has cleared on the alarm monitor.
NOTE
All PWR/ALM LEDs should be GREEN at completion of test.
7 Repeat Steps 4 through 6 to verify the 2nd LPA of the pair.
8 De-key the BBX.
n WARNING
First verify there are no BBX channels keyed when moving the antenna connection. Failure to do so
can result in serious personal injury and/or equipment damage.
9 Repeat Steps 1 through 8 to verify LPAs assigned to sectors 2 and 3 (if equipped). Move the test cable
on top of the BTS to TX OUT 2 and TX OUT 3 antenna connectors as required.
3