Installation
May 2008 – Revision 1.3
Page 24 of 62
3M™ Wireless Communication System Model XT-1
Installation Manual
Simple Circuit Example
The diagram below shows a simple DC circuit (a light and DC power supply)
being operated by auxiliary relay 3. To make the light turn on when a vehicle is
detected, terminals RELAY3_COM and RELAY3_NO (normally open) would
be used. To make the light turn off when a vehicle is detected, terminals
RELAY3_COM and RELAY3_NC (normally closed) would be used.
Vehicle Approach Monitor
If one of your vehicle detectors will be used as a vehicle approach monitor, use
an auxiliary as shown below.