Simplex 4905-9929 TrueAlert Addressable Isolator+ Module, IDNAC SLC Short Circuit Isolator

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Simplex 4905-9929 — TrueAlert Addressable Isolator+ Module, short circuit isolation for addressable notification appliance wiring.An IDNAC signaling line circuit shuts down safely when its wiring shorts, taking every appliance on the channel with it. Isolator+ modules at the head of each branch or T-tap confine the fault, so only appliances beyond the module drop out, and each reports its state to the panel. Power comes from 4100ES, 4010ES and 4007ES panels with IDNAC SLCs, from 4009 repeaters, or from legacy TrueAlert SLCs. 18 to 32 VDC from the TrueAlert channel, 10 mA at 24 VDC isolated One address and four unit loads per module, a unit load being 0.8 mA of panel current Class B: up to 12 per SLC, at most 6 in series on a branch. Class A: 6 per loop Isolated circuit wire resistance 1.5 Ω maximum to the farthest appliance Mounts in a 4" square box 2-1/8" deep; on-board yellow status LED Screw terminals 18 to 12 AWG, indoor, UL listed to Standard 864 Match the suffix exactly: 4905-9849 is the IDNAC Isolator2 module, 4905-9816 the TrueAlert adapter module, 4905-9815 the SmartSync adapter. Show more