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2.3 COMMON CONTROL CARDS
CENTRAL CONTROL PROCESSOR (DCCP)
The DCS 400si system must have a DCCP card which contains the system software on
the DROMD daughterboard. The DCS 400si Central Control Processor (DCCP) controls
the system operation. The DCCP installs in the DCCP/ECCP slot in the first cabinet of the
system. The DCCP is required for a one cabinet or two cabinet system operation. The
DCCP has a 256 time slot switch matrix and 4 DTMF DSP receivers built in. With a two
cabinet system a D4SWD daughterboard must be installed on the DCCP to expand the
switch matrix to 512 time slots. The addition of the D4SWD board also provides 16 DTMF
receivers. The DCCP supports the following options.
8 position DIP Switch (make busy IO, T1 clocking and default numbering plan)
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Manual reset switch
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MOH Volume Control
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2 Page Relays (via 6 pin modular jack #1)
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External Page Output / External MOH Input (via 6 pin modular jack #2)
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MOH Internal Melody chip
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2 SIO ports (RS-232c-9pin) (1 built-in and 1 optional)
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8 LED's giving operational status of the CPU, major and minor alarms, T1 clocking
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and maintenance and administration indications.
EXPANSION CONTROL PROCESSOR (DECP)
To expand the DCS 400si to more than a single cabinet system, the expansion control
processor card is required in the second cabinet. The DECP processor communicates via
a high level data link control (HDLC) to the DCCP. The special HDLC cable connects the
DCCP to the DECP. The DECP can have one of two types of daughterboards installed on
it to increase the systems DSP resources for station use or Caller I.D. use.
2.4 INTERFACE CARDS
These cards provide the interface connections for telephone lines, stations and
miscellaneous functions to the DCS 400si. These cards fit into the universal card slots in
the main and expansion cabinet to configure the system as required. As the system utilizes
dynamic time slot allocation each interface card is assigned only the required number of
time slots or ports. This provides for more efficient use of the 384 ports.
8 UNIVERSAL TRUNK CARD (D8UTK)
The DCS 400si 8 port Universal Trunk card is selectable on a per circuit basis for loop
start, ground start, DID and E&M tie line type trunks. All trunk types supported are soft-
ware programmable. It can be inserted into any universal slot. Each D8UTK uses 8 ports.
16 CIRCUIT TRUNK CARD (D16TK)
The DCS 400si 16 port Trunk card provides 16 loop start trunks. The D16TK supports
Caller ID service and can be inserted into any universal slot. Each D16TK uses 16 ports.
2.2
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