KMS Simplekey 4 - Page 4

Key Management Systems Ltd 4 | P a g e
System Wiring Overview ........................................................................................................................ 43
System Wiring Example 1 ....................................................................................................................... 44
System Wiring Example 2 ....................................................................................................................... 45
Security / Alarms .......................................................................................................................................... 46
Power Cut.............................................................................................................................................. 46
Loss of Data .......................................................................................................................................... 46
System Controller ................................................................................................................................ 46
Communications Module ........................................................................................................................... 47
Communication Module Variants ......................................................................................................... 48
CM-4G features ..................................................................................................................................... 48
Communications Module Overview ..................................................................................................... 49
Communications Module LED Key ........................................................................................................ 49
Communications status ....................................................................................................................... 49
GSM Indicator LED ................................................................................................................................ 50
Signal strength ...................................................................................................................................... 50
SEM ................................................................................................................................................................. 51
Introduction .............................................................................................................................................. 51
Connections .............................................................................................................................................. 51
Glossary ......................................................................................................................................................... 52