
…always there
CONTENTS
INTRODUCTION ............................................................................... 4
Scope.............................................................................................. 4
Static Sensitive Devices ...................................................................... 4
Decommissioning Procedure ............................................................... 4
3GSTU OVERVIEW ............................................................................ 6
Specifications ................................................................................... 8
Safety.............................................................................................. 9
Power Supply.................................................................................... 9
Compatibility.................................................................................... 9
REN ................................................................................................ 9
INSTALLATION ................................................................................. 10
Training Courses ............................................................................... 10
Pre-Installation Requirements.............................................................. 10
Connecting the Telephone Line and Earth.............................................. 11
Mains Fail......................................................................................... 13
Tamper ........................................................................................... 13
Power Connection ............................................................................. 13
Alarm Inputs..................................................................................... 14
Output Relays................................................................................... 15
Control Output ................................................................................. 15
Return Path Signalling Output (RPS) ..................................................... 15
Line Fault Output .............................................................................. 16
Telephone Line Selection (LK1) ............................................................ 17
INSTALLING THE NVM....................................................................... 17
Pin Alarm Polarity.............................................................................. 18
PROGRAMMING THE NVM ................................................................. 18
Input............................................................................................... 19
Switch ............................................................................................. 19
STATUS INDICATORS ........................................................................ 24
STU Status LED Meanings................................................................... 25
SYSTEM COMMISSIONING ................................................................. 25
Testing the System ............................................................................ 26
Warranty ......................................................................................... 27
Repairs............................................................................................ 27
TROUBLESHOOTING......................................................................... 28
Chirps ............................................................................................. 28
Equipment Compatibility Issues ........................................................... 28
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