Installation Instructions

Galaxy 2 Series Installation Manual

Figure 15. GSM Module fitted to underside of Galaxy 2-44 PCB

Built-in Dialler/Modem

The built-in dialler allows signalling to an Alarm Receiving Centre (ARC), SMS signalling and remote servicing

from a PC.

LED’S

There are two LED’s on the Galaxy 2–44+ PCB. Pulsing of the red LED1 indicates an active telecommuni-

cations. Illumination of the green LED2 indicates the presence of AC mains supply.

There is one LED on the Galaxy 2–20 PCB. Pulsing of this LED indicates an active telecommunications.

Audio Header (2–44+ Only)

This is a 14-way shrouded header for audio connection. When an alarm is received at the ARC, the ARC can

communicate through a loudspeaker at the premises, and ask for a password before authenticating the alarm.

GSM Interface (2–44+ Only)

This module provides a mobile telecommunications interface to provide an alternative to the land line. The

GSM interface provides the same functionality as the built-in dialler/modem. The module attaches to the

underside of the PCB and also connects to the antenna on the edge of the enclosure box.

ECP Bus (2–44+ Only)

The ECP bus can operate at the same time as the RS485 bus. The cable can be standard 4-core and can be

spurred or T wired.

The maximum length of cable run is 100 metres.

Figure 14. ECP Line - T Wire Configuration

ECP Bus

GSM

Module

Heatsink

to antenna on

enclosure box

Galaxy

2-44 PCB

(underside)

Galaxy 2-44

Control Panel

Keypad

Peripheral

ECP Bus