Overview; Physical Description; Self Test; Functional Description - Meridian Nortel 1 Option 11C Technical Reference Manual

Page 424 of 544

Overview

Physical description

Self Test

Functional description

553-3011-100 Standard 14.00
NT1R20 Off Premise Station (OPS) analog line card
The NT1R20 Off-Premise Station (OPS) Analog Line Card is an intelligent
peripheral equipment (IPE) device that can be installed in any IPE slot in the
main or expansion cabinets. The OPS analog line card connects eight analog
telephone lines to the Option 11C with secondary hazard and surge
protection.
Each unit is independently configured in software in the Single-line
Telephone Administration program (LD 10).
The OPS card measures 31.75 by 25.40 cm (12.5 by 10 in.) It connects to the
IPE backplane through a 160-pin connector shroud. A 25-pair amphenol
connector below the card is cabled to the cross connect terminal. Telephone
lines from station equipment cross connect to the OPS analog line card at the
cross connect using a wiring plan similar to trunk cards. (See the Option 11C
Planning and Installation (553-3021-210) for cross connect terminations).
The faceplate of the card is equipped with a red, light-emitting diode (LED).
When an OPS analog line card is installed, the LED remains lit for two to five
seconds while the self-test runs. If the self-test completes successfully, the
LED flashes (off/on) three times and remains lit until the card is configured
and enabled in software, then the LED goes out.
This functional description of the NT1R20 Off-Premise Station Analog Line
Card is divided into two parts. First, a description of the card's control,
signaling, and power interfaces is given, followed by a description of how the
card itself functions.
January 2002