User Manual

BTS Equipment Identification continued
Jan 2002
1-15
SC4812ET BTS Optimization/ATP CDMA LMF
RF Cabinet Internal
FRUs
Figure 1-3 shows the location of the Internal Field Replaceable
Units (FRUs). A brief description of each Internal FRU is found in the
following paragraphs.
Figure 1-3: RF Cabinet Internal FRUs
DRDC LPAs
CCP Fans
LPA Trunking
Backplane
5 RU Rack Space
RFDS
DC
Power
Dist.
Punch
Block
(back)
EBA
CCCP Shelf
Combiner
Cage
Circuit
Breaker Panel
ETIB
FW00163
OPTIONAL AREA
Duplexer/RX Filter Directional Coupler
The DRDC combines, in a single module, the functions of antenna
duplexing, receive band pass filtering, and surge protection (see
Figure 1-7).
1