Architects and Engineering Specification Advance Synchronization Module Circuit Module shall be a System Sensor Sync Model _________ listed to UL 464 UL 1971 and shall be approved for fire protective service. The module shall synchronize SpectrAlert SpectrAlert Advance strobes at 1 Hz and horns at temporal 3. Also, the module shall be capable of the horns on horn/strobe models, while operating the strobes, over a single pair of wires. The shall be capable of mounting to a 411 411 21 back box and shall control two Style Y B) or one Style Z (class A) circuit. The module shall be capable of multiple zone synchronization by multiple modules (slaves) together. Slaves can be driven from either the slave output of a prior or from the NAC output of the master. Using the NAC enables all wiring to be supervised, whereas slave-out terminals are not supervised, so their use is confined to specific applications. The module not operate on a coded power supply. 2011
