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Page 279 of 332

Chapter 19 — Connecting an external alarm

This chapter describes the procedures for connecting an external alarm to the

Option 11C Mini system. This chapter contains the following procedure:

Procedure 43: “Installing an alarm using an alarm port” on page 279

The following are the two methods of connecting an external alarm to the

Option 11C Mini system:

through an alarm port assigned in software

through contacts in a QUA6 Power Failure Transfer Unit (PFTU)

Alarm port assigned in software

You can equip the system with an alarm port. Connect an analog line to an analog (500/250 type) telephone or another similar type of ringing or alerting device.

Procedure 43

Installing an alarm using an alarm port

1Install an analog (500/2500 type) line as described in “Chapter 17

— Connecting the telephones” on page 229.

2Connect an analog (500/2500 type) telephone, or another similar alerting device used as an alarm, to the line.

You can assign the set as Model 20.

Option 11C Mini Planning and Installation Guide

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Nortel Networks Option 11C Mini manual Connecting an external alarm, Alarm port assigned in software, 279