RC Systems ViewSmart 1600+ Operation Manual page 20

When a Standard Relay is configured for Failsafe Mode (or the Fault Relay), the alarm condition is used to
de-energize a device such as a Green Steady Light (all clear). In this case, the light is wired to the C and NO
terminals, and Power is wired to the C terminal just as described previously. However, since the relay is
in Failsafe mode, the circuit is complete, and the device is powered. When the alarm (fault) state is
reached, the relay de-energizes, and the light turns off. This is very useful for indicating a loss of power to
the ViewSmart 1600+.
When powering multiple devices with the same voltage requirements, placing wires across the C terminals
of the relays with common load requirements can simplify wiring.
UM-1097
Revision B 10