Honeywell 8C- TAOXA1 Analog Output IOTA Module

Product Overview

The 8C-TAOXA1 (8C-TAOXA1) is a specialized Input Output Termination Assembly (IOTA) designed for the Honeywell Series 8 platform. This module provides the physical interface and termination points for 16-channel analog output signals, supporting both standard and HART-enabled modules. To ensure longevity in harsh industrial climates, this unit features a conformal coating that protects sensitive circuitry against moisture, dust, and corrosive elements. Its compact 6-inch footprint is optimized for high-density cabinet installations where rail space is at a premium.

Technical Specifications

• Component Type Analog Output Termination Assembly (IOTA)

• Part Number 8C-TAOXA1

• Configuration Non-Redundant (Simplex)

• Channel Capacity 16 Channels

• System Compatibility Honeywell Series 8 Controllers

• Associated Modules 8C-PAOHA1 (HART), 8C-PAONA1 (Non-HART)

• Nominal Operating Voltage 24 VDC

• Current Consumption 110 mA

• Conversion Resolution 16 bits

• Input Signal Range 4-20 mA (via 250 Ω resistance)

• Input Scan Frequency 50 ms

• Hardware Precision ±0.075% of full-scale (at 23.5°C ± 2°C)

• Common Mode Rejection (CMRR) 70 dB (DC to 60 Hz)

• Normal Mode Rejection (NMRR) 19 dB (at 60 Hz)

• Filter Characteristics Single-pole RC, -3 dB @ 6.5 Hz

• Maximum Voltage Tolerance ±30 Volts peak (non-destructive)

• Physical Dimensions 6 inches (152 mm)

• Environmental Protection Conformal Coated (CC)

Installation & Application

The 8C-TAOXA1 (8C-TAOXA1) serves as the bridge between the Series 8 control processor and field elements such as control valves, positioners, and variable speed drives.

• Designed for mounting on standard Series 8 carrier rows.

• Ideal for non-critical loops where redundancy is not a requirement.

• Built-in support for HART digital pass-through when paired with the 8C-PAOHA1 module.