Honeywell 51198873-100 I/O Link Cable

Configured for high-reliability signal transmission between Field Termination Assemblies (FTAs) and I/O Processors (IOPs) in DCS networks, the Honeywell 51198873-100 (Honeywell 51198873 I/O Link Cable Assembly) provides direct physical/electrical execution.

Hardware Specifications

Process Control Integration & Channel Shielding

The 51198873-100 operates as the dedicated physical layer connecting process processing components, deploying specific isolation and shielding methods:

• 4-20 mA HART Loop Shielding: The overall metallic braid provides continuous, full-circumference coverage that limits the entry of high-frequency electromagnetic field lines, maintaining signal integrity on 4-20 mA HART loop protocol lines.
• Channel-to-Channel Isolation Protection: Grounding the integrated shielding braid to the main enclosure earth plane prevents parasitic transient voltages from spreading across adjacent modules, preserving the designed channel-to-channel isolation of the IOP.
• Fixed-Impedance Coupling: The multi-core copper conductor internal geometry is structured to prevent impedance mismatches over the 30.48 m run, reducing signal reflections on high-speed serial links.

Frequently Asked Questions

Q: Can this cable assembly be modified or cut to length in the field?

A: No. The 51198873-100 is a factory-assembled and tested unit with pre-molded proprietary connectors. Field cutting or manual splicing will alter the impedance characteristics, compromise the metallic shield coverage, and void system-level verification.

Q: Does this cable support both analog and digital signals on the same link?

A: Yes. The multi-core configuration and shielding enable it to carry multiple high-speed digital communications and discrete or analog signal pathways simultaneously without inducing cross-talk.

Field Installation Guidelines

• Cable Routing Segregation: Route the I/O link cable inside dedicated low-voltage wireways. Maintain a minimum separation of 300 mm from AC power distribution lines to prevent electromagnetic coupling.
• Bend Radius Restrictions: Do not exceed a minimum bending radius of ten times the outer cable diameter during installation to prevent dynamic stress on the internal copper cores and metallic braid.
• Connector Engagement: Align the pins of the pre-molded Honeywell connector with the receptacle before locking. Tighten any integrated thumbscrews securely to ensure low contact resistance and prevent accidental disconnects under vibration.
• Shield Grounding Continuity: Ensure the cable shield terminates to ground through the pre-designed connector shell interface, ensuring a continuous path to the cabinet common earth point.