Nortel Networks 553-3001-211 manual Connector pin assignments

Page 170 of 894 NT1R20 Off-Premise Station Analog Line card

Connector pin assignments

The OPS analog line card brings the eight analog telephone lines to the IPE backplane through a 160-pin connector shroud. The backplane is cabled to the input/output (I/O) panel on the rear of the module, which is then connected to the Main Distribution Frame (MDF) by 25-pair cables.

Telephone lines from station equipment cross connect to the OPS analog line card at the MDF using a wiring plan similar to that used for trunk cards. A typical connection example is shown in Figure 23 on page 171, and a list of the connections to the analog line card is shown in Table 69. See Communication Server 1000M and Meridian 1: Large System Installation and Configuration (553-3021-210) for more detailed I/O panel connector information and wire assignments for each tip/ring pair.

Table 69

OPS analog line card – backplane pinouts

Backplane		Backplane
Connector		Connector
Pin	Signal	Pin	Signal
12A	Unit 0, Ring	12B	Unit 0, Tip
13A	Unit 1, Ring	13B	Unit 1, Tip
14A	Unit 2, Ring	14B	Unit 2, Tip
15A	Unit 3, Ring	15B	Unit 3, Tip
16A	Unit 4, Ring	16B	Unit 4, Tip
17A	Unit 5, Ring	17B	Unit 5, Tip
18A	Unit 6, Ring	18B	Unit 6, Tip
19A	Unit 7, Ring	19B	Unit 7, Tip

553-3001-211 Standard 2.00 September 2004