The Siemens XTRI-S Intelligent Interface Modules are design to provide the means of interfacing direct shorting devices to the fire alarm control panel (FACP) SLC. All modules take up one (1) address on the loop.
In general, each Siemens XTRI-S interface module provides the “built-in” ISOtechnology feature – intelligent dual isolation meeting NFPA 72 Class X (Style 7) wiring requirements. Up to 252 isolators per loop and up to 30 devices between isolators (wired in polarity insensitive mode). Additionally, the devices between isolators can either be ‘H’-series or the more contemporary ‘X’-series detection devices.
Overall, the built-in isolators improve the diagnostics and location of the problem, including a short. The modules are configurable by a Siemens compatible FACP (or panels) in an isolator (polarity sensitive) or non-isolator (polarity insensitive) mode. When an XTRI series interface module is configure as an isolator; that module has the capacity of functioning as both an in/out device, as well as an isolator.
Advanced troubleshooting is provided by compatible panels by identifying when a XTRI-series interface module is configured as an isolator, but is wired incorrectly in a polarity-insensitive mode.
Features / Specifications
- Low current draw
- Multi-color light-emitting diode (LED) indicates system status
- Mounts in a 4-inch (10.2 cm.) square, 2– ¼” (5.7 cm.) deep single-gang or double-gang back box
- Non-obstructive front-end access to programming port and wiring terminals
- Restriction of Hazardous Substances (RoHS) compliant