User Manual

BTS Equipment Identification – continued
Jan 2002
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SC4812ET BTS Optimization/ATP — CDMA LMF
5 RU RACK
SPACE
RFDS
EBA
ETIB
NOTE: MCCs may be
MCC8Es, MCC24Es
or MCC–1Xs. BBXs
may be BBX2s or
BBX–1Xs.
19 mm Filter Panel
Power Supply
AMR
CSM CSM
MODEM
AMR
GLI2GLI2
MCC24–6
BBX2–1 BBX2–2 BBX2–3 BBX2–4 BBX2–5 BBX2–6
BBX2–RSwitch
CIO
BBX2–7 BBX2–8 BBX2–9
BBX2–10
BBX2–11
BBX2–12
MCC24–5 MCC24–4 MCC24–3 MCC24–2 MCC24–1
MCC24–12
MCC24–11
MCC24–10
MCC24–9 MCC24–8 MCC24–7
Power Supply Power Supply
CCD CCD
REF FW00304
SC 4812ET RF Cabinet
Figure 1-4: SC 4812ET C–CCP Shelf
HSO/LFR
MPC/EMPC–1MPC/EMPC–2
Punch Block
The Punch Block is the interface point of the RF Cabinet between the
T1/E1 span lines, the Customer I/O, alarms, multi–cabinet timing
(RGPS and HSO), and Pilot Beacon control (optional). (see Figure 1-6).
Span I/O Board
The Span I/O Board provides the interface for the span lines from the
CSU to the C–CCP backplane (see Figure 1-6).
RF Diagnostic Subsystem
The RFDS provides the capability for remotely monitoring the status of
the SC 4812ET RF Transmit and Receive paths (Figure 1-7).
Heat Exchanger
The Heat Exchanger provides cooling to the internal compartment of the
RF Cabinet. The fan speed of the heat exchangers adjusts automatically
with temperature. The Heat Exchanger is located in the primary front
door of the RF Cabinet.
SC 4812ET Interface Board (ETIB) & LPA Control Brd (LPAC)
The ETIB is an interconnect board showing status LEDs for the RF
Cabinet, as well as providing secondary surge protection. The LPAC
board provides the interface for the LPA connection.
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