SMS SenTRI2, Installation Instructions Manual, Page: 2 / 44

2
Contents
Contents
Preface 3
Associated Documents 3
Symbols on product 3
Conventions 3
Abbreviations 3
Notes 4
Installation 4
Second fix 4
Fixture and fittings 4
As fitted drawings 4
Cable type and routing 4
Fire sensor covers 4
Earth continuity 5
Power supply 5
Mains supply 5
Local Manual Call Point 5
EN54 information 6
Optional functions with requirements of
European standard 6
System wiring 7
Cable separation 7
Lightning protection 7
Cables for a SENTRI4 system 8
Cable for wiring Mains Supply 8
Cable for wiring system equipment 8
Cable length 8
Cable for wiring to RS232/RS485 ports 8
Cable length 8
Loop cables 9
Enhanced loop cables 9
Standard loop cables 9
2.5mm² Loop cable (2.5Km loop) 9
Network cables 10
Enhanced Network cables 10
Standard Network cables 10
Loop circuit design 12
Loop Card 12
Condition of use of Loop Card 12
Battery Standby and Loop load calculator
tool 13
Loop Cable length 13
Loop device load and length
calculations 13
What are Lumped and Distributed
alarm device loads? 13
Distributed alarm device load 13
Lumped alarm device load 13
Typical SENTRI4 System 14
SENTRI4 panel 15
Features 15
Technical data 16
Control panel 16
Batteries 18
Power supply 18
Panel installation 20
Mounting & cable entry points 21
Semi-Flush fixing the control panel 22
Cable termination on enclosure 23
Wiring tests 23
Mains & battery supply cables 23
Mains supply 24
Terminals for external circuits 25
Device loop circuits 26
Master alarm circuits 27
Clean contacts 27
Auxiliary relay circuits 28
RS232 / RS485 Communication 29
Wiring a Remote printer 30
Copper Network 31
Network connections 32
Network wiring 32
Network cable screen continuity 33
How to minimise cross talk 33
Domain Bridge across Networks 34
Methods of domain bridging 34
Star connection 34
RS232 Domain bridge using
Domain IO card 35
On completion of wiring installation 35
SenTRI Sensors 36
Base 36
IP21 Base 36
Indicators 36
Dust Cover 36
Siting 37
Do’s and Don’t 37
Metal back box 38
In - Out wiring to SenTRI bases 38
Programmable input/output 39
Tools for SenTRI Sensor 40
SenTRI4 Panel and Sensors parts 41