Product Details
The Honeywell 51304476-175, also cataloged as the 51304476-175 Analog Output Termination Board (TAOX02), operates as a dedicated hardware component for field wiring termination and signal routing of 4-20 mA analog output channels within Honeywell TDC 3000 and Process Manager (PM/APM/HPM) architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 51304476-175 (TAOX02) |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.44 lbs |
| Dimensions | Standard Honeywell FTA Envelope Dimensions |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive field termination (Loop-powered by I/O processor) |
| Channel Type | Analog Output (4-20 mA) |
| Signal Protocol | 4-20 mA HART loop protocol support |
| Circuit Board Designation | TAOX02 PC Board |
4-20 mA HART Loop Protocol & Channel Isolation
The termination assembly routes 4-20 mA field control signals from the upstream analog output processor to final control elements such as control valve positioners and variable frequency drives. Signal conditioning circuitry maintains impedance matching and passive noise rejection across every output loop. Integrated surge protection components and channel-to-channel isolation networks prevent electrical field transients, cross-talk, and ground loops from feeding back into the system I/O backplane.
Frequently Asked Questions
Q: Does the 51304476-175 termination board supply active loop power to field devices?
A: No, the board acts as a passive termination interface (TAOX02) that routes the driving current supplied directly by the associated Honeywell Analog Output I/O processor card.
Q: How is field wiring terminated on this specific assembly?
A: Field cables connect directly via screw-terminal compression blocks integrated onto the printed circuit board assembly, supporting multi-core shielded twisted pair wiring.
Field Installation Guidelines
- Mount the printed circuit board assembly securely onto the designated cabinet DIN-rail or standard Field Termination Assembly (FTA) mounting rack.
- Route multi-pair shielded field cables through cabinet wire ducting to maintain physical separation from high-voltage AC power conductors.
- Connect 4-20 mA output loop field wiring to the designated screw terminals, observing correct positive and negative loop polarity.
- Terminate all cable drain wires to the cabinet earth ground bar at a single entry point to maintain shield effectiveness and prevent circulating ground currents.
- Inspect all terminal screws for proper torque specification prior to applying system loop power.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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