Unit installation

iii
Contents
Introduction .................................................................................... xi
Quick Setup .................................................................................. xiii
SECTION 1: SYSTEM ARCHITECTURE ........................1
Overview ..........................................................................................1
Stand-by Battery .................................................................................6
System Installation and Wiring ........................................................6
RS485 Data Communication Line (AB Line) .........................................7
Memory ..............................................................................................8
RS485 Wiring Recommendations ................................................................................... 8
Zones ................................................................................................9
Wiring Zones ......................................................................................9
Wiring Multiple Zones ........................................................................ 10
Wiring Keyswitches ..........................................................................10
Wiring Exit Terminators (Push-to-Set) ................................................ 10
Wiring the Line Fail Zone ................................................................... 11
Line Fail in the Unset State ........................................................................................... 11
Line Fail in the Set State ............................................................................................... 11
Outputs ............................................................................................ 11
Fixed Outputs ...................................................................................12
Bell ............................................................................................................................... 12
Strobe ..........................................................................................................................12
Horn ............................................................................................................................. 12
Voltage Outputs ................................................................................ 13
Auxiliary 12 V d.c. ....................................................................................................... 13
Hold-Off ....................................................................................................................... 13
Programmable Outputs ..................................................................... 13
Telecoms Connections (Galaxy 16 plus only) ................................ 14
Connection to the PSTN .................................................................... 14
Connecting Additional Telecom Apparatus .................................................................. 15
The Galaxy 16 plus and BT RedCare STUs ................................................................. 15
Regulations ...................................................................................... 15
Public Switched Telephone Network (PSTN) Approval ......................... 16
REN and SEN Numbers .................................................................... 16
Private Branch Exchange (PBX) Connection ....................................... 17
Table of contents