Siemens XTRI-S Addressable Single Input Interface Module Cerberus PRO NEW

The XTRI Series Addressable Modules from Siemens Industry, Inc., interface direct shorting devices to the device loop circuit of the Siemens Desigo and Cerberus PRO Fire Alarm Systems. Refer to the Configuration Tool for details. The XTRI modules support two operation modes: polarity insensitive mode and isolator mode. The module can be wired for either mode (refer to Figures 8 through 13). During the isolator mode, the built-in dual isolators will work at both sides of the module to isolate the line short in front or behind the module. The XTRI modules are available in three models. The XTRI-S, P/N S54370-B3-A1, and XTRI-R, P/N S54370-B1-A1, can monitor a normally open or closed dry contact. The XTRI-S can only monitor and report the status of the contact, while the XTRI-R incorporates an addressable Form C relay. The XTRI-D, P/N S54370-B2-A1, is a dual input module that supervises and monitors two sets of dry contacts.