System Sensor MDL3R Sync Circuit Module

The Sync-Circuit module synchronizes SpectrAlert® Advance strobes at 1 Hz and horns and chimes at temporal 3 over a single pair of wires. Patented module technology also allows the silencing of horns or chimes on horn/strobe and chime/strobe models over a pair of wires.

The MDL3 Module is designed to work with the SpectrAlert and SpectrAlert Advance series of notification appliances to provide a means of synchronizing the temporal-coded horns and chimes, synchronizing the one-second flash timing of the strobe, and silencing the horns and chimes of the horn/strobe and chime/ strobes combination over a two-wire circuit while leaving the strobes active. Application Flexibility.

The Sync-Circuit module is designed to power and synchronize either two 3-amp circuits wired in Class B, or one 3-amp circuit powered as Class A. Should more than two zones require synchronization, additional modules can be added by interconnecting the “slave” input and output terminals between modules.

Main Features

• Two-wire operation from module to the devices
• Silences horns and chimes over a two-wire loop
• Synchronizes strobes at 1 Hz
• Synchronizes horns and chimes to temporal 3 pattern
• Patented technology
• Interconnects modules for multiple zone synchronization
• Module controls two Style Y (Class B) circuits or one Style Z (Class A) circuit
• New NAC slave feature enables the interconnection of slave modules over a supervised NAC loop