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. 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 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. • Allows slave module operation Agency Listings S5512 S4011 CS548/549 7300-1209:179 The MDL 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. 0D4A7.AY 254-97-M Sync•Circuit™ Module Specifications Architectural/Engineering Specifications Synchronization Circuit Module shall be a System Sensor Sync•Circuit Model _________ listed to UL464 and shall be approved for fire protective service. The module shall synchronize SpectrAlert® strobes at 1 Hz and horns at temporal 3. Also, the module shall be capable of silencing the horns on horn/strobe models, while operating the strobes, over a single pair of wires. The module shall be capable of mounting to a 411⁄16˝× 411⁄16˝× 21⁄8˝ back box and shall control two Style Y (class B) or one Style Z (class A) circuit. The module shall be capable of multiple zone synchronization by connecting multiple modules together via a slave-in/ slave-out arrangement and re-synchronizing each other along the chain. Note: The module shall not operate on a coded power supply. Physical Specifications Dimensions 51⁄4˝ L × 51⁄4˝ W Mounting 411⁄16˝ × 411⁄16˝ × 21⁄8˝ back box Indoor Operating Temperature 32° to 120° F (0° to 49° C) Electrical/Operating Specifications Operating Voltage 12 or 24 VDC and FWR unfiltered Operating Voltage Range (12 V) 9 to 17.5 VDC Operating Voltage Range (24 V) 17 to 33 VDC Maximum Load on Loop 3 Amps/zone HORNS SILENCED OVER TWO WIRE CIRCUIT U.S. Patent Nos. 5,598,139 MASTER MODULE HORN CONTROL CONNECTS 5,850,178 TO INTERRUPTABLE POWER SOURCE Horns and Chimes Silenced Over Two-Wire Circuit 1. Any mix of Horn/Strobes, Chime/Strobes or Strobe only devices is acceptable 2. Horn and chime control connects to interruptible power source MASTER MODULE FACP #1 (+) EOL NAC1 (–) (+) NAC2 (–) (+) NAC3 (–) } } } } (+) (–) HORN CONTROL ZONE 1 OUT (+) (–) ZONE 1 IN ZONE 2 OUT (+) (–) ZONE 2 IN SYNC ERROR (+) (–) SLAVE IN SLAVE OUT SLAVE MODULE FACP #2 } } } } )+( )–( TO NEXT SPECTRALERT DEVICE OR EOL )+( )–( (+) NAC1 (–) (+) )+( )–( TO NEXT SPECTRALERT DEVICE OR EOL )+( )–( NAC2 (–) } } } } )+( )–( HORN CONTROL ZONE 1 OUT (+) (–) ZONE 1 IN ZONE 2 OUT (+) (–) ZONE 2 IN SYNC ERROR (+) (–) SLAVE IN SLAVE OUT TEMP JUMPER OFF TEMP JUMPER OFF } } } } )+( )–( )+( )–( )+( )–( )+( )–( TO NEXT SPECTRALERT DEVICE OR EOL TO NEXT SPECTRALERT DEVICE OR EOL All SpectrAlert horns, horn/strobes, and strobes will operate in sync. Current Draw and Ordering Information Red MDL, MDLA (Canadian) White MDLW, MDLWA (Canadian) Voltage 12 24 Average Current (mA) DC FWR 10 12 11 15 3825 Ohio Avenue • St. Charles, IL 60174 Phone: 800-SENSOR2 • Fax: 630-377-6495 Peak Current (mA) DC FWR 30 31 35 37 In-rush Current (mA) DC FWR 87 122 198 262 ©2007 System Sensor. Product specifications subject to change without notice. Visit systemsensor.com for current product information, including the latest version of this data sheet. A05-1007-005 • 6/07 • #1676