Samsung iDCS 500 General Description Manual page 7

SINGLE CABINET SYSTEM
A single cabinet system has nine
universal card slots, a processor
slot and two power supply slots, the
first of which must be occupied by
a PSU-B (see Figure 1–1). Station
or trunk (line) cards can be installed
in any of the nine universal slots.
The T1/PRI cards must be installed
in slots 1, 2 or 3. This allows a maxi-
mum of 120 stations of any kind or
120 lines in a single cabinet sys-
tem. Without using T1/PRI cards,
the maximum number of CO lines
in the basic KSU is 72.
NOTE: The first power supply slot 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.
TWO CABINET SYSTEM
When it is required that the basic system be ex-
panded to provide a capacity greater than that de-
scribed above, the Signal Control Processor (SCP)
card must be installed in slot nine of the first cabinet.
This card provides an intermediate level of process-
ing to control the first cabinet therefore freeing re-
sources on the Main Control Processor (MCP) to con-
trol 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 op-
tionally occupy the remaining daughter board posi-
tion 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 T1/PRI cards. Without the T1/PRI cards, the maximum number of lines is 136 while
the maximum number of stations remains at 240. This second cabinet is controlled by a
1.3
FIGURE 1–1
FIGURE 1–2