Appendix B: Driving A Relay From A Phase Selector - OPTICOM 764 Installation Manual

Intersection Equipment Installation Instructions

Appendix B: Driving a Relay from a Phase Selector

It is possible to drive an electro-mechanical or solid-state relay from a phase selector output. However, this
application falls outside of the intended use of the Opticom™ GPS System and the system was not designed
for this application. Should you do so on your own, it is important to use a relay that falls within the
parameters described below to prevent damage to the phase selector. It is recommended that you use a
Model 770 or 1045 Gate opener card rack which includes a relay. See Appendix C for details.
Figure 19-1 is a wiring diagram that shows how the relay is connected to the phase selector.
This section only applies when using a 760 card rack. Contact technical service if you are using a
different model card rack.
Figure 19-1 Wiring Diagram
*Numbers 1 – 4 correspond to the numbers in the following Recommendations section.
66