Multi Flex Sounder Base Sounder Base: VF4990-0M Standard Features - Compatible panel silence functions - Sync network “self tests” to ensure synchronized output if “upstream” sync signal is lost - Sounders will operate in “failsafe” mode if sync network is compromised - Sync modules available in MR-1 enclosures, snap track or chassis mount for standard 2-gang box - Intelligent trouble reporting via onboard Trouble LED The Multi-Flex family of the smoke detector sounder cases and synchronization modules provide today’s most advanced functionality and performance, delivering flexible notification capabilities for Apollo conventional and analog addressable systems. The bases offer selectable steady or temporal pattern output and selectable high or low volume levels. The three-pulse temporal pattern is required by NFPA 72 for fire alarm evacuation for commercial and residential applications. Available synchronization modules (SM) allow temporal pattern sounder base circuits to be completely synchronized and installed in almost limitless configurations, and also provide an onboard latching test function. USCG Type Approved The sounder base requires an external 24VDC power supply. In the absence of a synchronization module, a means for polarity reversal is required for test and general alarm functionality. The connections for the external power supply and the communication loop are opto-isolated to prevent electrical interaction between them. Technical Specifications - Multi Flex Sounder Base Sounder Base Part Number Compatible Smoke Detectors Analog Addressable (Discovery or XP95A) Conventional (Series 65 or Series 60A) Sounder Base Operating Voltage Sounder Base Alarm Currents Sounder Base Standby Current Sounder Base Audible Intensity High Volume Selection: 85dB @ 10 feet Low Volume Selection: 75dB @ 24VDC Wiring Environmental Material Dimensions Approvals Solid or Stranded; #12 to #22 AWG Terminals 32°F to 100°F (0°C to 38°C) 0% to 85% RH; Non-Consending/Non-Freezing Makrolon 6455 or 6555 (polycarbonate); 94V-0 6”L x 6”W x 1.6”D (152mm x 152mm x 41mm) UL Listed File Pending - CSFM Pending - MEA Pending Fireboy-Xintex, Inc. O-379 Lake Michigan Drive Grand Rapids, MI 49534 . 616.735.9380 Fireboy-Xintex, Ltd Unit 10 Holton Road, Holton Industrial Estate Poole, Dorset BH166LT UK . 44 (0) 845 389 9462

Technical Specifications - Multi Flex Synchronization Module MD-SDRT-SM/G Two-Gang Box Mounted (H x W x D) Enclosure Mounted (H x W x D) Cover Material Enclosure/Mounting Details Metal 2-Gang Mounting Chassis with Appropriate Wall Plate Cover Operating Voltage Range Gray ABS Plastic; 94V-0 Low-profile SnapTrack with Provided Mounting Screws 18Ga. CRS, Plated with 1/2 “ Conduit Knockouts, Top and Bottom Current Requirements Input/Output Details 24VDC - Power Circuit (SM): 16mA Standby; 16mA Alarm SIL NAC - Silence Circuit (SM): 7.5mA Standby; 2mA Alarm SYNC IN - Synchronization Signal In (SM):...