Figure 1-2 Idcs Two Cabinet System - Samsung iDCS500 Manual

Two Cabinet System
When it is required that the basic system be expanded to provide a capacity greater than that
described above, the Signal Control Processor (SCP) card must be installed in slot nine of the first
cabinet. This card provides an intermediate level of processing to control the first cabinet therefore
freeing resources on the Main Control Processor (MCP) to control the entire system. Adding the SCP
card therefore reduces the number of universal card slots in the first cabinet to eight. In addition, the
MCP card must be equipped with a ESM daughter board and a IPM daughter board. Only a LAN
daughter board may optionally occupy the remaining daughter board position on the MCP card. All
other types of daughter boards must be installed on the SCP card or LCP card.
Adding one expansion cabinet makes the system a two cabinet system with 17 universal card slots
(see Figure 1–2). This allows a maximum of 240 stations or 232 lines when using TEPRI cards.
Without the TEPRI cards, the maximum number of lines is 136 while the maximum number of stations
remains at 240. This second cabinet is controlled by a Local Control Processor (LCP) in a similar
manner to the SCP in the first cabinet and connects to the MCP via a 25 pair cable. The LCP
processor card resides in a dedicated slot 10 of the second cabinet and therefore does not deplete the
number of universal card slots.
NOTE: The first power supply slot in each cabinet must be occupied by a PSU-B to supply sufficient
power to all 10 slots (9 universal and a processor slot) and support up to 56 stations. The second
power supply slot can be occupied by either a PSU60 or PSU-B. Do not use a PSU40 in either PSU
slot.
Figure 1–2 iDCS Two Cabinet System
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