Edwards EST MR604/T Four-Position SPDT Relay with LEDs 16/02 the secondary telephone line may

the secondary telephone line may be retained providing backup communication over the public switched telephone line

and Lighting Control Systems

They feature a unique bi-colored LED to indicate minor or major attacks

— GSA-LED Remote Alarm LED (not for EN54 applications)

Edwards EST MR604/T Four-Position SPDT Relay with LEDs 16/02 the secondary telephone line mayThe MR600 Series Relays provide SPDT, 10 Amp contacts with manual override capability by means of an ON AUTO OFF switch. The relay requires a 24 Vac or 24 Vdc power source supplied by the controlling system. With the switch in the ON position the power relay is energized. With the switch in the AUTO position the relay is allowed to operate as signaled by the controlling system. With the switch in the OFF position the relay cannot be energized. Each