Overview
Manuals
Termination Role
Paired Electronics
Source Boundary
Features:
- Honeywell identifies 8C-TAOXA1 as a coated, non-redundant analog-output IOTA.
- The manufacturer pairs it with HART and non-HART 16-channel analog-output IOMs.
- 8C-TAOXB1 is a separately identified redundant IOTA, not the same termination assembly.
The Honeywell Series 8 specification names 8C-TAOXA1 in its I/O summary and detailed analog-output tables. It is a coated, non-redundant, 6-inch IOTA for 8C-PAOHA1 HART and 8C-PAONA1 non-HART output IOMs. The function matrix confirms those pairings and contrasts redundant 8C-TAOXB1. The manufacturer lists 4-20 mA and 16 output channels in the IOM tables, which describe the complete output arrangement rather than a standalone signal-processing board built into the IOTA. This distinction prevents ratings from being copied onto the wrong assembly.
Before procurement, identify the installed Series 8 cabinet, actual AO IOM, IOTA coating and form, loop assignments, field supply, termination pattern and non-redundant versus redundant architecture. The direct Honeywell PDF establishes the 8C-TAOXA1 model and compatible IOM categories but does not map extra website number 51307135-175. Confirm that number from the supplied physical label or a manufacturer parts record. Record baseline outputs and diagnostics before authorized maintenance, follow site isolation and current Honeywell procedures, then prove each affected loop after replacement. Do not infer a redundant IOTA can replace this unit merely because the TAOX prefix matches.
The 8C-TAOXA1 51307135-175 Honeywell Series 8 Non-Redundant Analog Output IOTA may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell 8C-TAOXA1 51307135-175 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Honeywell identifies 8C-TAOXA1 as a coated, non-redundant analog-output IOTA. It is a 6-inch termination assembly, not the electronic output module. The paired 8C-PAOHA1 and 8C-PAONA1 IOMs provide output processing. The manufacturer names larger 8C-TAOXB1 as redundant hardware. Match cabinet size, terminal arrangement and physical label before ordering.
The manufacturer's output tables pair 8C-TAOXA1 with HART and non-HART analog-output IOMs. Their 4-20 mA, channel-count and accuracy figures belong to each full IOM arrangement, not independently to a passive IOTA. Verify which electronic module is installed and how its loops are wired. A shared IOTA option does not make HART and non-HART IOMs universally interchangeable.
The direct Honeywell PDF prints 8C-TAOXA1 and its non-redundant AO role, but does not map additional website number 51307135-175. Verify that number on the actual supplied item or in a Honeywell parts record. The same document lists 8C-TAOXB1 as a distinct redundant IOTA. Confirm physical revision, cabinet, loop wiring and redundancy design before treating another TAOX suffix as a replacement.
