MU-KFTA08 51201420-008 Honeywell FTA I/O Signal Connection Cable

Overview

Configured for signal and power interconnection in Honeywell distributed control systems, the Honeywell MU-KFTA08 51201420-008 (MU-KFTA08 FTA I/O Signal Connection Cable) provides direct physical and electrical connection between Field Termination Assemblies and compatible I/O control hardware. The 8 m cable supports analog and digital signal paths and uses multi-core twisted conductors with overall shielding to reduce externally induced electrical interference.

Hardware Specifications

Process Signal Transmission and Channel Isolation Practices

The MU-KFTA08 51201420-008 supports physical signal routing between Honeywell FTA hardware and compatible I/O modules. Its twisted-pair conductor arrangement helps control noise pickup on analog and digital circuits, while the foil and tinned copper braid provide an additional shielding path against electromagnetic and radio-frequency interference.

In DCS installations, correct cable routing also supports channel-to-channel signal separation. Keep the cable away from high-current switching conductors, motor feeders, and variable-frequency drive output wiring. In addition, terminate shielding according to the grounding method specified for the associated Honeywell FTA and I/O architecture.

Where connected circuits operate with 4-20 mA HART instrumentation, the cable functions as the physical interconnection path only. HART communication performance depends on the connected I/O hardware, field device configuration, loop impedance, and overall system installation.

Frequently Asked Questions

Q: Can the MU-KFTA08 51201420-008 carry both analog and digital I/O signals?
A: The provided specifications state compatibility with Analog Inputs/Outputs and Digital Inputs/Outputs. The actual signal assignment depends on the connected Honeywell FTA and I/O module configuration.

Q: Does the cable require a separate power supply?
A: No independent cable power consumption is specified. The assembly acts as an interconnection cable, while connected field and I/O circuits provide the required operating power.

Q: Can the MU-KFTA08 cable shielding be connected arbitrarily at both ends?
A: No. Shield termination should follow the grounding and shielding requirements of the connected Honeywell FTA and control system. Incorrect shield termination can create ground-loop or interference problems.

Field Installation Guidelines

• Verify that the full cable designation MU-KFTA08 51201420-008 matches the required Honeywell hardware before installation.
• Isolate or de-energize connected equipment when the applicable system maintenance procedure requires it.
• Align each high-density D-Sub connector carefully before engagement and tighten the locking screws without forcing the connector.
• Do not sharply bend, crush, twist excessively, or mechanically load the cable near connector exits.
• Route the cable separately from motor power cables, high-current conductors, and switching circuits where practical.
• Maintain the cable shielding system according to the grounding requirements of the connected FTA and I/O architecture.
• Inspect connectors and cable jackets for contamination, mechanical damage, corrosion, or insulation deterioration before commissioning.
• After installation, verify signal continuity and confirm correct channel mapping through the associated Honeywell control system configuration.

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