Availability: In stock SKU: HTRI-R
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Siemens HTRI-R Intelligent Single Interface Module

The Siemens ─ Fire Safety HTRI-R Intelligent interface module is designed to provide the means of interfacing direct shorting devices to the fire-alarm control panel (FACP) loop circuit.

The HTRI-series modules provide the most advanced method of address programming and supervision on the market ─ combined with sophisticated control panel communication. Each HTRI-series interface module incorporates a microcomputer chip, and each interface module achieves the state of an `intelligent device’ through its microcomputer-chip technology, combined with its sophisticated, bi-directional communication capabilities with the FACP.


The Siemens Mode HTRI-series intelligent interface modules are available in three (3) types: Model HTRI-D | -DZ, as well as Models HTRI-S | -SZ and HTRI-R | -RZ, which are both designed to monitor a (N.O) or (N.C) dry contact. The interface module reports the status of the (N.O) or (N.C) contact to the control panel.

Model HTRI-S | -SZ can only monitor and report the status of the contact, while Model HTRI-R | -RZ incorporates an addressable `Form C’ relay.

The Model HTRI-R | -RZ relay and contact device input are controlled at the same address. For the FACP, the relay and input contact can be controlled as a separate function. The relay is typically used where control or shunting of external equipment is required.

The Model HTRI-D | -DZ is a dual-input module that is designed to supervise and monitor two (2) sets of dry contacts. Model HTRI-D | -DZ only requires one (1) address but responds independently to each input. Model HTRI-D | -DZ is ideal for monitoring a water flow switch and its respective valve tamper switch.

Datasheet HTRI-R

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Additional information

Weight 1 lbs
Dimensions 6 × 6 × 2 in
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