User's Manual

Introduction
– continued
Apr 2001
V02.03
23
SC
TM
4812ET RF and Power Cabinet Hardware Installation Manual
DRAFT
RF Cabinet External
FRUs
Figure 1-3 shows the location of the External Field Replaceable Units in
the RF Cabinet. A brief description of each External FRU is found in the
following paragraphs.
Figure 1-3: RF Cabinet External FRUs
Unpopulated LPA
Shelf Cover
LPA
External Blower
Assembly (EBA)
Note:
LPA Compartment
door not shown for
clarity
FW00190
Linear Power Amplifier (LPA)
The LPA (See Figure 1-4) amplifies RF signals for transmission via the
antenna. The SC 4812ET can accommodate up to 16 LPA’s. The actual
number of LPA’s present depends upon RF Cabinet configuration.
Figure 1-4: SC4812ET LPA
FW00191
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