Motorola SC 4812ET RF Hardware Installation Manual page 26

Introduction
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Combiner Cage (2:1, 4:1, or Band pass Filter)
The Combiner Cage holds the transmit band pass filters, 2:1 combiners,
or 4:1 combiners, depending on system configuration.
Combined CDMA Channel Processor (C–CCP) Shelf
The C–CCP shelf contains the following:
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High Stability Oscillator (HSO)/LFR (Optional) card
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Clock Synchronization Manager (CSM) on 2 cards (one with GPS
receiver if ordered).
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CDMA Clock Distribution (CCD) cards (2)
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Power Supply cards (2 minimum, 3 maximum)
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Multicoupler Preselector Cards (MPC) (2)
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Alarm Monitoring and Reporting (AMR) cards (2)
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Multi Channel CDMA [MCC–1X (8E or 24), MCC–1X (8E/24)]
cards (up to 12)
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Broadband Transceiver (BBX–1X) cards (up to 13)
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Combined Input/Output (CIO) (1)
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Group Line Interface (GLI2) cards (2)
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BBX2 Switch card (1)
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Modem (optional)
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Filler Panels
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Fan Module (3)
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 RHSO), and Pilot Beacon control (optional).
Span I/O Board
The Span I/O Board provides the interface for the span lines from the
CSU to the C–CCP backplane.
RF Diagnostic Subsystem (RFDS)
The RFDS provides the capability for remotely monitoring the status of
the SC 4812ET RF Transmit and Receive paths.
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.
SC 4812ET Trunking Backplane
The Trunking Backplane contains a complex passive RF network that
allows RF signals to share the resources of a bank of four LPAs. It also
provides DC Power and digital interconnect.
SC 4812ET RF and Power Cabinet Hardware Installation Manual
TM
DRAFT
Apr 2001
V02.03