Siemens HTRI-DZ Addressable Interface Module

The Siemens HTRI-DZ Intelligent interface module is design to provide the means of interfacing direct shorting devices to the fire alarm control panel (FACP) loop circuit.

In general, the HTRI-series modules provide the most advanced method of address programming and supervision on the market ─ combined with sophisticated control panel communication. Also, 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 HTRI-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 waterflow switch and its respective valve tamper switch.

Siemens HTRI-DZ flashes twice ─ once for each address, and Model HTRI-R | -RZ LED indicates a change of state in the relay. The device’s microcomputer chip has the capacity of storing, in memory, identification information; as well as important operating-status data.

Features / Specifications

• Interfacing and supervising normally open (N.O) or normally closed (N.C) contacts
• Integral single-pole, double-throw (SPDT) relay on Model HTRI-R | -RZ (up to 4 amps)
• Polarity insensitive with SureWireTM technology
• Dynamic supervision
• Two-wire operation
• 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