Honeywell 51202329-736 Extension Cable

The Honeywell 51202329-736 (also cataloged as 51202329 Extension Cable) is a 48-inch (1.2 m) paired I/O link extension cable designed for signal routing in Honeywell Experion PKS (C300) and TDC 3000 control platforms. It connects controller modules to field termination assemblies while preserving signal integrity in dense panel layouts.

Cable Pairing and Signal Routing

This extension assembly operates as a paired cable system comprising Cable A (yellow label, 51202329-734) and Cable B (green label, 51202329-735). Both cables must be installed together to ensure correct signal mapping and channel-to-channel isolation between control hardware and I/O interfaces.

Construction and Fieldbus Compliance

The cable features a distinctive violet outer jacket for rapid identification in complex control cabinets. As a passive cable assembly, it consumes no power and is designed to preserve noise immunity for FOUNDATION Fieldbus and Profibus PA network connections.

Technical Specifications

Field Installation Guidelines

1. Install both Cable A and Cable B together to maintain correct signal routing across the I/O link interface.
2. Route extension cables away from high-voltage AC conductors to minimize electromagnetic interference.
3. Ground cable shields exclusively at the controller termination point to prevent ground loop currents.
4. Verify channel assignment using the violet cable jacket and colored labels (yellow for Cable A, green for Cable B).
5. Perform continuity and signal integrity checks with loop test equipment prior to system commissioning.

Frequently Asked Questions

Q: Can the 51202329-736 extension cable be used individually?

A: No, it operates as a paired system and must be installed with both Cable A (51202329-734) and Cable B (51202329-735) for proper I/O link extension.

Q: How should the cable shielding be grounded during installation?

A: Cable shielding must be grounded at the control system end only to prevent ground loop currents.

Q: Does this cable support redundant system configurations?

A: The cable provides standard I/O link extensions, with redundancy managed at the system controller level rather than within the cable itself.