User's Manual

Internal Assembly Identification and Location68P09255A69-3

Aug 2002

1X SC4812ET Lite BTS Optimization/ATP Software Release 2.16.1.x

PRELIMINARY

1-21

20-pair Punchblock with Remote GPS Distribution

Module

Assembly installed in the RGPS expansion primary BTS frame which

enables distribution of digital GPS timing signals to other (RGPS

expansion secondary)) BTS frames located at the same cell site. The

assembly is located on the left-hand side of the power entry

compartment (Figure 1-4) at the rear of the frame, opposite the 50-pair

punchblock.

Figure 1-4: 20-pair Punchblock with RGD Module

Rear of Frame

(Power Entry Compartment

Door Open)

Section of Power Entry Compartment

Left-hand Panel (Rotated 30 Left)

20-pair

Punchblock

(Interconnect

cabling not

shown for

clarity)

RGD

(All interconnect cabling

not shown for clarity.)

ETL0031-1

2:1 Combiners

In the SC4812ET Lite BTS, one 2:1 combiner is used per sector to

combine the trunked LPA-amplified TX signals for two carriers into one

signal for input to the applicable sector DRDC or TRDC.