User's Manual

Internal Assembly Identification and Location
68P09255A69-3
Aug 2002
1X SC4812ET Lite BTS Optimization/ATP Software Release 2.16.1.x
PRELIMINARY
1-20
Internal Assembly Identification and Location
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
NOTE
Cabinet doors not shown for clarity.
LPAs
SCCP Fans
LPA Trunking
Module
RFDS
SCCP Shelf
Filter/Combiner
Shelf (Bandpass
filters shown)
ETIB
DRDC/TRDC
Shelf
CSU Shelf
MAP
DC PDA
GFCI Utility
Outlet
LPAC
Back-up Batteries
(Heaters underneath batteries)
External
Blower
Assembly
SC4812ETL0002-5
ACLC
Span I/O
A
Span I/O
B
CSUs
ESD Grounding
Jack
Rectifiers
(Rectifier #1
indicated)
1