Overview
Manuals
UIO-2 Board Pairing
Field Terminal Groups
Current Loop Interfaces
Features:
- Coated redundant UIO-2 termination board for the matched CC-PUIO31 module arrangement.
- Thirty-two field channels on TB1 and TB2, plus four +24 V connections on TB3.
- Signal functions depend on IOM configuration; the IOTA alone does not perform analog conversion.
The CC-TUIO41 IOTA connects field wiring to the redundant UIO-2 electronics rather than acting as an interconnection cable. Honeywell's Series C guide pairs this coated board with CC-PUIO31 modules and shows a twelve-inch redundant layout. TB1 carries channels 1-16 and TB2 carries channels 17-32, each with the documented return and power screw pair. TB3 adds four +24 V screw positions. Module mounting, field wiring and supplied terminal components should therefore be checked separately when defining the replacement assembly.
The paired UIO-2 system can use individual channels for analog current input, analog current output, digital input or digital output. The installation guide permits compatible two-, three- and four-wire current transmitters, with 0-20 mA or 4-20 mA analog input and 4-20 mA analog output. It explicitly excludes direct voltage, thermocouple, RTD and NAMUR inputs without appropriate external interfacing. Select the correct mode and power arrangement for every loop. Retain the complete 51306873-176 board marking and revision; neither a similar connector layout nor a different numeric suffix proves interchangeability.
The CC-TUIO41 51306873-176 Honeywell Redundant UIO-2 Termination Assembly may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-TUIO41 51306873-176 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.
Use the coated CC-TUIO41 redundant IOTA with the documented CC-PUIO31 module arrangement. The board and IOMs perform different functions and are separate supply items. Confirm the receiving hardware, approved system release and redundant configuration. A first-generation UIO board or the smaller nonredundant UIO-2 IOTA is not an automatic mechanical or functional replacement.
The redundant IOTA terminal table assigns channels 1-16 to TB1 and channels 17-32 to TB2. Each channel has the specified return and power screw pair. TB3 positions 1 through 4 are labelled +24 V. Verify terminal labels and circuit drawings before reconnection; these four power positions are not four additional process channels.
With compatible UIO-2 electronics, analog-input channels accept 0-20 mA or 4-20 mA current signals from appropriately powered devices. Analog outputs use 4-20 mA. Direct voltage, thermocouple, RTD and NAMUR inputs are outside the documented AI interface. Use an approved external converter or interface where required, and verify loop power, polarity and selected IOM mode together.
