MS850 Installation Manual - Page 7
4-Pin Sensor Harness
Pin 1 - RED: Sensor Power +12v.
Pin 2 - BLACK: Sensor Ground. This wire provides ground to turn on the sensor only during
Sensor Test Mode and when the alarm is Armed.
Pin 3 - WHITE/violet: Trigger (-) input.
Pin 4 - VIOLET/yellow: Warn Away (-) input.
Other Harnesses
For details on the Status LED and Override Switch, see
Mounting Components.
Extra LEDs
Up to 3 extra LEDs can be added. Cut the Red LED wire and connect in series as shown.
LED
Connector
installation_850.qxd 9/10/99 6:26 PM Page 7