Samsung iDCS 500 General Description Manual page 14

LOCAL AREA NETWORK (LAN)
This daughter board installs in either position MCP-D2 or MCP-D3 of the Main Control
Processor and provides a 10/100 base T Ethernet LAN connection. In addition to the LAN
connection, the LAN board provides 0.5 megabytes of SRAM to support the increased I/O
functions of this card. The LAN board also provides the hardware to drive the third and
fourth Serial I/O ports in the main cabinet.
The LAN daughter board consists of the following:
10/100 base T LAN Interface
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0.5 Megabytes SRAM (for expanded database functions)
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2 serial I/O ports (maximum asynchronous speed 38.4 Kbps)
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SWITCH AND CONFERENCE MODULE (SCM)
The Switch and Conference Module installs on the MCP or the SCM processor cards. In a
single cabinet system the SCM can be installed in MCP-D1, however in a multiple cabinet
system the SCM must be installed on the SCP as the MCP must have the ESM and IPM
daughter boards. The system, regardless of size can only support one SCM daughter
board. Adding a SCM daughter board to the system increases the number of conference
paths in the system from six to twenty four. In addition, the SCM also adds twelve DSPs for
DTMF and tone detection.
Twelve (12) DSPs for DTMF and tone detection
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Eighteen (18) conference paths (for a system total of 24)
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MULTI-FREQUENCY MODULE (MFM)
The MFM Module installs in any position of any of the processor cards. The main purpose
of the RCM daughter board is to provide DSPs for DTMF and tone detection.
The receivers are also used for DID trunks, E&M trunks, DISA, DNIS and ANI.
Twelve (12) DSPs for DTMF and tone detection.
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EXPANDED SWITCH MODULE (ESM)
The Expanded Switch Module is used to expand the time switch matrix from 512 chan-
nels in a single cabinet to the 1024 channels required for a multiple cabinet system.
The ESM daughter board installs in position MCP-D1 and consists of the following:
1024 x 1024 time switch
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