Digital Monitoring Products XR2500F Guía de instalación descargar pdf (Pagina 14)

Digital Monitoring Products XR2500F Installation Guide

INTRODUCTION

XR2500F Installation Guide Digital Monitoring Products

INTRODUCTION

Two 866 NAC Modules

5.1 Description

Each 866 provides one style W indicating circuit for supervising UL polarized notication appliances, such as

bells, strobes, and horns. See Table 1: Notication Appliances for a list of approved notication appliances.

5.2 Connection

Each 866 module is pre-installed on the removable backplate using the standard three-hole conguration.

The modules are factory pre-wired to each other, the 504-24, and the XR2500F panel. Refer to the gure

below and to Figure 2: XR2500F System for wiring connections.

You can connect 24 VDC Notication Appliances to terminals 5 and 6 of each module. Each module provides

a zone of notication and can be activated separately.

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Figure 5: 866 Modules Wiring

5.3 Bell Silence/Bell Trouble

A bell silence switch on the 866 module is provided to prevent indicating devices from sounding during

system testing. When the Silence position is selected, a 15-second delay occurs before the 866 bell trouble

contacts (terminals 7 and 8) open. Select the Normal position after testing to return the 866 module to

normal operation.

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Digital Monitoring Products XR2500F Guía de instalación Pagina 14

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