8U-TAOXA1 Series 8 Analog Output Terminal Assembly | Honeywell

The Honeywell 8U-TAOXA1, also cataloged as the 8U-TAOXA1 Analog Output Terminal Assembly, operates as a dedicated hardware component for field wiring interface and electrical connection execution within Honeywell Experion PKS Series 8 I/O platforms.

Hardware Specifications

4-20 mA HART Loop Protocol and Channel Routing

The Honeywell 8U-TAOXA1 terminal assembly establishes direct physical cable termination paths for 16-channel 4-20 mA HART loop protocol analog output signals. Acting as an unpowered passive interface, it routes control current signals from Series 8 analog output modules directly to field actuators and control valves. The internal circuit trace routing ensures strict signal separation to maintain channel-to-channel isolation provided by the host I/O module, preventing crosstalk, reducing ground potential offsets, and permitting uninterrupted HART digital FSK communication pass-through.

Frequently Asked Questions

Q: Does the 8U-TAOXA1 perform analog signal conversion?

A: No. The 8U-TAOXA1 is a terminal assembly that provides field wiring termination. The associated Analog Output I/O module performs signal generation and control processing.

Q: Can the 8U-TAOXA1 support HART communication?

A: Yes. HART pass-through communication is available when the terminal assembly operates with a compatible Honeywell Series 8 Analog Output module supporting HART functionality.

Q: Is the 8U-TAOXA1 suitable for redundant I/O configurations?

A: The terminal assembly can be installed within Series 8 I/O configurations that support redundancy. The exact redundant wiring arrangement depends on the selected I/O module and system design.

Field Installation Guidelines

1. Ensure panel supply power to field loops is turned off prior to connecting or landing individual wire conductors onto the terminal block.
2. Align the mounting tabs of the 8U-TAOXA1 terminal assembly with the slot guides of the Series 8 carrier assembly.
3. Seat the unit firmly onto the carrier backplane header until mechanical latches engage completely.
4. Secure retaining screws to verify mechanical stability and ensure ground continuity across the chassis.
5. Terminate field actuator signal wires onto dedicated terminal points using recommended wire strip lengths and torque values.
6. Connect all shielded pair cable drain wires directly to the dedicated cabinet master ground bus bar to maintain signal integrity and channel isolation.