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Basic Installation
Peripheral Cabinet Interface Cards and Modules
The following table lists the peripheral cabinet interface cards and modules
supported by the SX-200 ICP.
Table 7: Peripheral Cabinet Interface Cards and Modules
Interface Card Devices supported Circuits Maximum loop resistance
/loop lengths
DID Trunk card
(high power)
Direct Inward Dial (DID)
trunks from CO
6 Loop resistance: 2450 W
(includes set resistance)
Loop length:
26 AWG - 7986 m (25955 ft.)
22 AWG - 19995 m (64984 ft.)
LS/GS Trunk
card
(low power)
Ground start and Loop
start CO trunks
6 not applicable
LS/CLASS
Trunk card
(low power)
Loop Start CO trunks 8 not applicable
ONS/CLASS
Line card
(low power)
DTMF telephone sets
Rotary telephone sets
12 External loop resistance:
600 W (includes set resistance)
External wire resistance:
400 W
External loop length:
22 AWG - 3560 m (11700 ft.)
24 AWG - 2250m (7400 ft.)
OPS Line card
(low power)
DTMF telephone sets
Rotary telephone sets
6 External loop resistance: 1800 W
(includes set resistance)
External wire resistance:
1600 W
External loop length:
26 AWG - 7225 m (23700 ft.)
22 AWG - 18290 m (60000 ft.)
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