User Manual

BTS Equipment Identification – continued

5/21/04 1X SC4812T–MC BTS Optimization/ATP 1-31

DRAFT

Figure 1-11: BTS Multi–Carrier Frame 6–Sector PA Cage Configuration (+27V)

ti-CDMA-WP-00196-v01-ildoc-ftw REF

Enhanced

Trunking Module

Enhanced

Trunking Module

PA Cage

TX Filters

(one per sector)

TX Filters

(one per sector)

NOTE:

The fourth PA quadrant

(quadrant D – (see Figure 1-15)

is populated with CLPAs only

when the 4x4 ETM is used.

BTS Frame Description

The BTS is the interface between the span lines to/from the Centralized

Base Station Controller (CBSC) and the site antennas. This frame is

described in three sections:

S The top interconnect panel where all connections are made.

S The upper portion of the frame which contains circuit breakers,

cooling fans, and the C–CCP shelf.

S The lower portion of the frame which contains the PAs and PA fans,

Parallel Linear amplifier Combiners (PLC), Enhanced Trunking

Module(s) (ETM), and TX filters.