6
Power Cable Diagram
Fig. 3 Power Cable Description
The 4 pin power cable is the only harness needed if install requires ONE positive input sensor / GPIO1
(in addition to normal 3-wire install).
PIN2 (green wire) will be covered by heat shrink. Installer will need to cut back heat shrink to expose
for sensor install.
NOTE: While the power cable is backwards compatible with the VT-2200, PIN2 (green wire) is not
functional on VT-2200 devices.