The Allen-Bradley 1734-IT2I, also cataloged as the 1734-IT2I POINT I/O 2 Point Thermocouple Input, operates as a dedicated hardware component for differential temperature signal acquisition within distributed industrial control networks.

Model Identification and Suffix Structure

• Base Model Identifier: 1734-IT2I
• Spare Catalog Variants: 1734IT2I, 1734-IT2I/C
• Platform Series: POINT I/O
• Hardware Function: 2-Point Differential Thermocouple Input Module

Hardware Specifications

Network Communication and Backplane Integration

The module facilitates high-speed data exchanges across backplane bus communication velocity frameworks within Allen-Bradley node configurations. It supports deterministic EtherNet/IP networks, allowing seamless I/O density scaling and complete firmware flash compatibility to match host controller revisions across modern distributed control architectures.

Ordering Information

• 2 x 1734-IT2I Thermocouple Input Module units
• 2 x Removable terminal block bases
• 1 x Technical documentation reference sheet

Field Installation Guidelines

• DIN-Rail Mounting: Securely snap the open-style module onto a standard 35 mm industrial DIN rail inside an appropriate enclosure.
• Thermocouple Wiring: Connect differential thermocouple leads using matched compensation extension wire to minimize thermal junction errors.
• Grounding Compliance: Terminate signal shields to designated earth ground bus bars to prevent electromagnetic susceptibility.
• Power Verification: Supply regulated 24 V DC power to the terminal base before activating the I/O backplane communication.

Technical Inquiry and System Verification

• What is the total current draw required from the point bus?

  The module requires 175 mA of point bus current during operation.

• What supply voltage powers the module input circuitry?

  The module operates on a nominal 24 V DC supply voltage.

• How many input channels are integrated into the hardware?

  The hardware provides 2 differential thermocouple inputs.

• What physical mounting format does the module utilize?

  It utilizes standard DIN rail mounting in an open-style chassis configuration.

• Is firmware flash compatibility supported by this unit?

  Yes, firmware updates are supported for integration with compatible controllers.

• How are signal shields managed during field installation?

  Shields must be terminated directly to designated earth ground bus bars.

• What specific thermocouple types are processed by the inputs?

  The channels process differential temperature inputs from standard thermocouple sensors.

• What is the recorded weight of the individual hardware unit?

  The unit weight is precisely 0.1 kg.