Siemens HTRI-R Addressable Input Interface Module w/ Relay FireFinder XLS NEW

The HTRI Series Addressable Modules from Siemens Industry, Inc. interface direct shorting devices to the DLC loop circuit of the FireFinder-XLS or FS-250 System. The HTRI modules are available in three models. The HTRI-S and HTRI-R can monitor a normally open or closed dry contact. The HTRI-S can only monitor and report the status of the contact, while the HTRI-R incorporates an addressable Form C relay. The HTRI-D is a dual input module that supervises and monitors two sets of dry contacts