User Manual

Internal Assembly Location and Identification

08/15/2000

1-17

SC 4812ETL BTS Optimization/ATP

PRELIMINARY

Internal Assemblies and FRUs

Figure 1-3 shows the location of the internal assemblies and Field

Replaceable Units (FRU). A brief description of each item is found in

the following paragraphs.

Figure 1-3: Internal Assemblies and FRUs

(Cabinet doors not shown for clarity)

LPAs

SCCP Fans

LPA Trunking

Module

RFDS

SCCP Shelf

Filter/Combiner

Shelf (Bandpass

filters shown)

ETIB

DRDC

Shelf

CSU

Rectifier Meter

Alarm Panel

Rectifiers

DC PDA

ACLC GFCI Utility

Outlet

Span I/O

Board

LPAC

Backup Batteries

(Heaters underneath batteries)

External Blower

Assembly

SC4812ETL0002–1