Wheelock DSM-12/24-R Sync Module

The Wheelock DSM-12/24-R synchronization module combines separate strobe and audible NAC inputs into a single synchronized output for compatible Wheelock notification appliances. It supports synchronized Code 3 temporal horn and synchronized strobe flash, and it can silence the horn while keeping strobes active using one pair of wires. It controls one Class A or two Class B NAC circuits and handles up to 3 A per circuit at 12 or 24 VDC. Key Specifications: Type: NAC synchronization module (dual circuit) Core Function(s): Syncs Code 3 horn and strobe flash, supports audible silence with strobes active on a 2-wire output, supports T3 and T4 patterns for 520 Hz CO sounder applications Loop/Protocol: Conventional NAC interface for Wheelock sync compatible appliances Power: 12/24 VDC input; average current 0.020 A at 12 VDC and 0.035 A at 24 VDC; 3 A max load per NAC circuit Indicators/UI: Polarized for DC supervision; screw terminals for #18 to #12 AWG; supports interconnection of multiple modules (up to 20) Compatible Devices: Compatible with Wheelock synchronization-capable notification appliances including horns, horn strobes, strobes, multitone, chime strobes, speaker strobes, and low frequency sounder strobes (model dependent). System Compatibility: Compatible with standard fire alarm control panels providing separate strobe and audible NAC inputs for Wheelock sync capable notification appliances.