Honeywell 8C-TPOXA1 Input/Output Terminal Assembly

The Honeywell 8C-TPOXA1, also cataloged as the 8C-TPOXA1 Input/Output Terminal Assembly, operates as a dedicated hardware component for field wiring termination and network communication within Honeywell Experion PKS Series 8 C300 controller platforms.

Hardware Specifications

4-20 mA HART Loop Protocol Pass-Through and Channel Isolation

The Honeywell 8C-TPOXA1 provides physical routing and channel-to-channel isolation for field signal connections, isolating high-speed backplane processing from field-side electrical interference. Integrated communication paths support 4-20 mA HART loop protocol signals across connected modules, allowing direct digital variable pass-through to the C300 controller while maintaining low-noise transmission across redundant Fault Tolerant Ethernet (FTE) link interfaces.

Frequently Asked Questions

Q: Does the 8C-TPOXA1 support redundant hardware configurations?

A: Yes, the assembly features a dedicated CAT5e redundancy sync cable port alongside dual FTE A and FTE B connectors to enable active backup synchronization between redundant controller modules.

Q: What is the significance of the conformal coating on the 8C-TPOXA1?

A: Conformal coating protects the printed wiring assembly components against airborne contaminants, moisture, and corrosive atmospheric gases commonly encountered in industrial cabinet environments.

Field Installation Guidelines

1. Secure the IOTA assembly directly to the cabinet DIN-rail frame, verifying electrical continuity to the functional earth bus.
2. Connect dual FTE Ethernet cables (Yellow for FTE A, Green for FTE B) to establish redundant network links prior to applying 24 VDC power.
3. Route field wiring separately from high-voltage AC conductors and terminate cable drain shields at a single ground bar.
4. Ensure all enclosure conduit interface fittings achieve a minimum of 5 full threads engagement to preserve environmental sealing.