Honeywell 51202789-900 Link Interface Cable

Honeywell 51202789-900 Link Interface Cable

The Honeywell 51202789-900, also cataloged as the 51202789 Link Interface Cable, operates as a shielded extender assembly for I/O communication between Honeywell controllers and MOXA interface devices in distributed control system (DCS) environments.

Hardware Specifications

FOUNDATION Fieldbus / Profibus PA Connectivity

The cable is optimized for Honeywell Experion PKS (C300 controllers) and Series C I/O modules, while maintaining backward compatibility with TDC 3000 systems. Full EMI/RFI shielding ensures stable communication in high-noise environments. Channel-to-channel isolation is preserved through conductor geometry, supporting FOUNDATION Fieldbus and Profibus PA connectivity standards for extended cabinet layouts.

Frequently Asked Questions

Q: Can the 51202789-900 be used with non-Honeywell controllers? A: No, it is factory-terminated with Honeywell-specific headers and designed for Experion PKS and Series C systems.

Q: What is the maximum current rating for this cable? A: The cable supports up to 10 A continuous current within its rated voltage limits.

Q: How should shielding be terminated during installation? A: Shielding must be grounded at the controller end only to prevent ground loop currents.

Field Installation Guidelines

• Install into cabinet routing with full connector engagement on RJ45 and Honeywell-specific headers.
• Route separately from high-voltage conductors to minimize EMI/RFI interference.
• Ground shielding at the controller termination point only.
• Verify continuity and insulation integrity before commissioning.
• Avoid mechanical stress or bending beyond manufacturer specifications.