4193SNP addressable V-Plex® input expanders are ideal for systems where additional zone inputs are required. These expanders provide one supervised and one unsupervised zone that are compatible with any conventional detection device providing a dry contact output. Examples of these devices are door and window contacts, motion, glass, smoke and heat detectors, fire pull stations, and help-request buttons. They can also be used to monitor machine status outputs for normal, trouble and alarm status, environmental conditions and in other critical status applications. Features & Benefits: Can be located anywhere along the 2-wire addressable V-Plex bus Converts any conventional detection device to an addressable device (conventional detector must provide dry contact output) System automatically learns device serial number so no DIP switch addressing is required Small size fits easily into most sensing detector enclosures or splice boxes Two-zone inputs: one supervised with 10K EOLR, one unsupervised loop Loop 1 provides a broad, 300? tolerance Supervised for open, shorted or normal circuit conditions UL Listed for commercial burglary and fire alarm applications