Bogen MULTICOM 2000, Installation Instructions Manual

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24
Circuit Cards
The following circuit cards (Processor/Station/Analog) can be used in the wall-mounted system and the rack-mounted
system. Circuit cards are mounted in the card frame assembly.
Processor Card (Model MCPCA3)
The processor card is the functional heart of the
Multicom 2000. It contains the microprocessor, DTMF
encoder, memory, and system clock. One card is used
per system regardless of system capacity and is
installed in the first position of the MCMF card frame
(wall-mount) or MCRMF card frame (rack-mount). (In
rack-mount systems with greater than 120 stations,
there are 2 MCRMF card frames. In this case, the
processor card is installed in the first position of the
upper card frame.)
Station Card (Model MCSC)
The station card contains crosspoint switches, DTMF
decoder, and talk battery circuits. The card handles
the telephonic switching between the stations on that
card and the system (one card per 24 stations).
The station card is installed in alternating slots of the
card frame, along with its associated analog card.
The card uses a plug-in slo-blo fuse.
Analog Card (Model MCACB)
The analog card contains a 20-watt program amplifier,
12-watt intercom amplifier, and relay control circuits.
The card handles all program amplification and inter-
com amplification, and talk back operation for the sta-
tions on that card (one card is used for each 24 sta-
tions). The analog card is installed in alternate slots of
the card frame, along with its associated station card.
The card uses a plug-in fuse. (Bogen Part No. 94-
0001-31).
Figure 22 - MCPCA3
Figure 23 - MCSC
Figure 24 - MCACB