Edwards EST SIGA-IM Isolator Module The Edwards / EST SIGA-CR

The Edwards / EST SIGA-CR Control Relay Module provides a Form “C” dry relay contact to control external appliances such as door closers

Industrial

and instant inspection in a series of specialty conventional devices

and voice evacuation

The SK-RELAY allows a Silent Knight FACP to switch discrete contacts by code command

Edwards EST SIGA-IM Isolator Module The Edwards / EST SIGA-CREdwards EST SIGA IM Isolator Module (IM) is an addressable device that protects a signaling line circuit (SLC) from a to wire to wire short. The SIGA IM module monitors line voltages and opens the data line when a short is detected, isolating the short between the two modules located electrically closest to the short.