User's Manual Part 1

Optimization Overview

Apr 2001

1-1

SC4812ET BTS Optimization/ATP — CDMA LMF

DRAFT

Scope of This Document

This document provides information pertaining to the optimization and

audit tests of Motorola SC 4812ET Base Transceiver Subsystem (BTS)

equipment frames equipped with trunked high–power Linear Power

Amplifiers (LPAs) and their associated internal and external interfaces.

This document assumes the following prerequisites: The BTS frames

and cabling have been installed per the

BTS Hardware Installation Manual

– 68P64114A22, which covers the physical “bolt down” of all SC series

equipment frames, and the specific cabling configurations.

Document Composition

This document covers the following major areas:

 Introduction, consisting of preliminary background information (such

as component and subassembly locations and frame layouts) to be

considered by the Cell Site Field Engineer (CFE) before optimization

or tests are performed.

 Preliminary Operations, consisting of cabinet power up and power

down procedures.

 Optimization/calibration, covering topics of Local Maintenance

Facility (LMF) connection to the BTS equipment, Global Positioning

System (GPS) Verification, test equipment setup, downloading all

BTS processor boards, RF path verification, Bay Level Offset (BLO)

calibration and calibration audit, and Radio Frequency Diagnostic

System (RFDS) calibration.

 Acceptance Test Procedures (ATPs), consisting of ATP tests executed

by the LMF and used to verify all major transmit (TX) and

receive (RX) performance characteristics on all BTS equipment.

 Preparing to leave the site, presents instructions on how to properly

exit customer site, ensure that all equipment is operating properly, and

all work is complete according to Motorola guidelines.

 Basic troubleshooting, consisting of procedures for installation,

calibration, transmit and receive tests, backplane problems, GPS

failures, and module connectors.

 Appendices contain pertinent Pseudorandom Noise (PN) Offset,

frequency programming, output power data tables, data sheets that are

filled out manually by the CFE at the site, and information on test

equipment preparation.