Siemens TRI-D Dual Input Interface Module P/N:500-896226

The Siemens TRI-D Dual Input Interface Module P/N: 500-896226 is an intelligent addressable initiating interface designed for compatible Siemens fire alarm systems. It provides two independently supervised inputs, allowing two separate dry-contact initiating devices to interface with an addressable fire alarm control panel.

The TRI-D uses two device addresses—one for each input—so the fire alarm system can independently identify and process the status of both connected circuits.

Product Functions

• Provides two intelligent supervised inputs
• Monitors two independent dry-contact circuits
• Uses two addressable device points
• Provides individual identification for each input
• Supports normally open dry contacts
• Provides dynamic supervision
• Supports alarm and supervisory applications
• Uses electronic device addressing
• Provides multi-color LED indication
• Uses screw-terminal connections
• Supports compatible Siemens addressable loops
• Designed for MXL and FireFinder XLS systems
• Can monitor two related initiating devices from one module

Dual Input Operation

The TRI-D provides:

Input 1

and

Input 2

as independently supervised initiating circuits.

Each input can monitor a separate dry-contact device and communicate its status independently to the compatible fire alarm control panel.

This allows one TRI-D to perform the work that would otherwise require two individual single-input interface modules.

Two Address Operation

The TRI-D requires:

Two device addresses

with one address assigned to each monitored input.

This allows the fire alarm control panel to distinguish between the two connected devices and provide separate point descriptions, event reporting, and system responses.

Dry Contact Monitoring

The TRI-D is designed to supervise normally open dry-contact initiating devices.

Typical compatible devices can include:

• Sprinkler waterflow switches
• Valve supervisory switches
• Pressure switches
• Conventional pull stations
• Equipment status contacts
• Other approved dry-contact initiating devices

A common application is monitoring a sprinkler waterflow switch and its associated valve tamper switch with a single TRI-D module.

Electronic Addressing

The TRI-D uses electronic addressing rather than mechanical DIP switches, rotary switches, or address jumpers.

Compatible programming equipment includes:

DPU — Device Programming Unit

FPI-32 — Field Programmer/Tester

The programmed addresses are stored in non-volatile memory, helping eliminate problems associated with mechanical address switches.

Multi-Color LED

The TRI-D incorporates a multi-color status LED.

Available indication colors include:

Green

Amber

Red

The LED provides local status information related to module operation and monitored input conditions.

Addressable Loop Compatibility

The TRI-D can operate on compatible Siemens intelligent addressable circuits alongside other supported devices, including:

• FP Series intelligent detectors
• IL Series detectors
• ID-60 Series detectors
• MSI Series addressable manual stations
• CZM modules
• ICP modules
• Other compatible intelligent Siemens devices

Exact compatibility depends on the installed Siemens fire alarm control system.

Electrical & Interface Information

Model: TRI-D

Part Number: 500-896226

Device Type: Dual Input Intelligent Interface Module

Inputs: Two

Input Type: Supervised dry contact

Addresses Required: Two

Addressing: Electronic

Field Connections: Screw terminals

Status Indicator: Multi-color LED

Shipping Weight: Approximately 7 oz / 0.2 kg

Compatible Systems: Siemens MXL / applicable FireFinder XLS systems

Product Status

The TRI-D is a legacy Siemens interface module. Third-party legacy-parts references identify it as discontinued and replaced by the newer:

XTRI-D — Dual Input Interface Module

For replacement applications, control-panel compatibility, device-loop protocol, addressing requirements, and system programming should be verified before substituting the XTRI-D for an existing TRI-D.

TRI-D Datasheet