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SX-200 ICP MX Technician’s Handbook
Connecting the Phones and Trunks
ONS/CLASS, DNIC and LS/CLASS ports
Cross connect the ONS, DNIC and LS/CLASS ports to lines at the
breakout box according to the Amphenol connector pin assignments in
table below.
After connecting the LS trunks, use the Line Quality Test to program the
audio configuration settings. For more information, see “Running the Line
Quality Test for LS Trunks” on page 140.
Table 9: Amphenol Connector Pin Assignments
Pair(s) Circuit Type Bay/Slot/Circuit Default DN
1/26 and 2/27 ONS/CLASS 1/13/3, 1/13/4 200 and 201
3/28 and 4/29 ONS/CLASS 1/13/5, 1/13/6 Unassigned
5/30 Not Used
6/31 and 7/32 DNIC 1/13/1, 1/13/2 198 - SC 1000
199 - Subattendant
8/33 to 10/35 Not Used
11/36 to 16/41 LS/CLASS 1/13/7 - 1/13/12
17/42 to 22/47 LS/CLASS 1/13/13 - 1/13/18
23/48 to 25/50 Not Used
Notes:
1. ONS/CLASS ports do not support high-voltage message-
waiting lamps.
2. Circuits 1/13/5 and 1/13/6 are on the Analog Option Board.
3. Trunks circuits 1/13/7 and 1/13/8 are System Fail Transfer
trunks. In the event of a system or power failure, the trunks
connect to ONS circuits 1/13/3 and 1/13/3 respectively.
4. ONS ports are not designed with the necessary safety protection
for off premise connections. ONS ports must not be used to
connect to off premise phones.