Edwards EST SIGA-IB4 Smoke 4-Inch Detector Mounting Base with Fault Isolator, comes with Trim Skirt wall-mounted Simplex 4100U

Simplex 4100U

built-in field configurable pre- and post-announce tone generators and a fully supervised Notification Appliance Circuit (NAC) with 2

the WFDEXP’s retard timing can be verified

Addressable Power Supply

Edwards EST SIGA-IB4 Smoke 4-Inch Detector Mounting Base with Fault Isolator, comes with Trim Skirt wall-mounted Simplex 4100UThe SIGA IB is a Signature Series detector base with a built in line fault isolator for use on a Class A signaling line circuit (SLC). It does not operate without a detector and does not support the SIGA LED. The isolator operates as follows: A short on the line causes all isolators to open within 23 ms; at 10 ms intervals, beginning on the side of the Class A circuit nearest the loop controller, the isolators close to provide the next isolator down