Siemens DSC Dual Sync Control Module, Red

The DSC Dual SYNC Control Unit is an optional accessory for a fire alarm system control unit. This unit provides synchronization of the MC and HMC strobes and synchronization and silenceability to the MTH series of electronic audible signals. When connected to a compatible polarity reversal type of notification appliance circuit, there is supervision of the wiring from the control unit through the DSC unit to the End-of-Line device.