USCG Type Approved Sounder Control Module: VF5666-0M Standard Features - Allows sounders to be operated continuously or be pulsed, 1 second on, one second off - May be synchronized when in pulsed operation - Can also be used for public address speakers - Visible LED The Sounder Control Module monitors and controls a circuit of alarm notification appliances or speakers. It is mounted on a plastic face plate for use with a 4” square or 2 gang electrical box. The module requires a separate 24VDC supply to power notification appliances. In addition to individual Sounder Control Module operation, multiple modules can be controlled simultaneously as a group. A red LED flashes in synchronization with the current pulse for reply from the device. Technical Specifications Dimensions: 4 1/2” x 4 1/2” x1” Temperature Range: 32°F to 120°F Humidity: 10 to 93% RH Non-Condensing Wiring Size: 24AWG - 14AWG Signal Line Circuit (SLC): Supervised power limited Working Voltage: 17-28VDC Modulation Voltage: 5-9V (Peak to Peak) Supervisory Current: 1.3mA Surge Current: 7.5mA Maximum Current: 4mA 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