Honeywell Galaxy 3-48C Installation Instruction

The ISDN Module is an optional add-on to the existing Galaxy product range. It connects directly to the
Galaxy RS485 communication bus, allowing signalling and remote servicing over an ISDN network. The
ISDN Module is housed inside the Galaxy enclosure in the same way as the existing Telecom Module.
The ISDN Module supports the following features:

•

Full existing Galaxy Telecom Module functionality

•

Analogue/digital/X.25 communication

•

Support for existing DTMF, SIA, Contact ID and Microtech signalling formats in addition to two
receiver specific X.25 protocols

•

Hardware and software line snatch

•

Comprehensive line fail detection and rteporting

•

Two-way communication using B-Channel and D-Channel.

The ISDN Module is allocated keypad address C on line 1 of the panel, and reports itself as Comm Mod 3.
As a result of the addition of the ISDN Module, keypad address C is not available on line 1. If this keypad is
required, the ISDN Module should be removed.

The position of components on the ISDN PCB may vary with different hardware revisions.

The ISDN module is programmed from the Galaxy 3 Series control panel using menu option
56 - Communications. The menu is allocated as option 3 after the Int. Telecom and Ext. RS232 Modules.

PROCESSOR

12V GND RS485

ISDN  IN

ISDN  OUT

PROM

JP3

Jumper
Links

LED's

D22

D23

IMOD 1 Rev 4

JP2

JP1