Relay Control Panel – This is an 18 channel interface between the equipment
being controlled, the computer control signals, and manual backup signals from
thermostats and time clocks for automatic back-up protection in the event any
computer problem. Also included is the computer watchdog signal which provides
automatic switching of the devices being controlled in the event of a malfunction
or power failure. It also provides for isolation of different control voltages, and
source voltages.