You are here:
  1. Home
  2. Product
  3. I/O Modules
  4. Analog Output Modules
  5. ICS Triplex T9881 Trusted Analog Output Field Termination Assembly
Sale!
SKU: T9881

ICS Triplex T9881 Trusted Analog Output Field Termination Assembly

The ICS Triplex T9881 is a high-integrity Analog Output Field Termination Assembly designed for the Trusted TMR system. It provides an 8-channel interface for 4-20mA signals, featuring robust isolation and redundant power support for SIL 3 safety-critical valve and actuator control.

Request a Quote

Product Overview

The ICS Triplex T9881 serves as the specialized Field Termination Assembly (FTA) designed for use within the Trusted TMR (Triple Modular Redundant) system. This module acts as the physical interface between the T9481 or T9482 Analog Output modules and the industrial field equipment. By facilitating secure and organized signal distribution, the T9881 ensures that critical control commands reach actuators, valves, and positioners with maximum integrity and minimal electrical interference.

Technical Functionality and Operation

The T9881 manages the routing of 4-20mA current signals through high-density termination points. Because safety is paramount in Trusted architectures, this FTA incorporates robust isolation and protection circuitry to prevent field-side faults from propagating back to the main controller. It supports redundant power feed configurations, ensuring that the analog loops remain energized even if a single power source fails. Furthermore, the module simplifies system maintenance by providing clear labeling and accessible test points, which allow technicians to verify loop integrity without disconnecting field wiring.

Key Technical Specifications

  • Manufacturer: ICS Triplex (Rockwell Automation)
  • Model Number: T9881
  • Product Series: Trusted System
  • Module Type: Analog Output Field Termination Assembly (FTA)
  • Channel Capacity: Supports up to 8 High-Integrity Channels
  • Signal Compatibility: 4-20 mA Current Loop
  • Connection Type: Compression-style screw terminals for field wiring
  • Mounting Configuration: Standard DIN rail or Trusted Chassis mounting
  • Physical Protection: Designed for high-vibration and industrial temperature ranges
  • System Integrity: Suitable for SIL 3 rated safety loops when used with Trusted TMR modules

Strategic Industrial Applications

Engineers deploy the T9881 in high-availability environments where precise analog control is vital for process safety. Consequently, it is a standard component in the following scenarios:

  • Control Valve Actuation: Provides the final connection for modulating valves in critical oil and gas pipelines.
  • Speed Governor Interfacing: Manages analog speed setpoints for large turbines and compressors in power plants.
  • Hazardous Chemical Dosing: Ensures accurate delivery of chemical agents by maintaining stable signal paths to metering pumps.
  • Positioning Systems: Facilitates precise movement of heavy industrial dampers and actuators in complex manufacturing processes.
Tags:

You may also like

Sale!
Allen Bradley 1756-OF8 ControlLogix Analog Output Module

Allen Bradley 1756-OF8 ControlLogix Analog Output Module

Configured for multi-channel analog signal generation in ControlLogix automation platforms, the Allen Bradley 1756-OF8 (1756-OF8 Analog Output Module) provides direct electrical execution of voltage and current control loops.

Hardware Specifications

ParameterSpecification
Model1756-OF8
BrandAllen Bradley
OriginUSA
Weight0.35 kg
Dimensions23.3 x 18.3 x 5.3 cm
Operating TempIndustrial Standard
Power ConsumptionSystem Backplane Dependent
Output Channels8 Points

Industrial Control and Network Characteristics

The 1756-OF8 module utilizes backplane bus communication velocity to process high-resolution analog output signals within the ControlLogix chassis. Integration into Profinet and EtherNet/IP deterministic networks enables synchronous command execution across distributed I/O racks. Firmware flash compatibility allows for version alignment with current control software, while configurable I/O density scaling supports expansion in modular automation architectures without degrading signal update rates.

Frequently Asked Questions

Q: Does the 1756-OF8 support Removal and Insertion Under Power (RIUP)?A: Yes, the module supports RIUP within a ControlLogix chassis, provided that the associated field wiring arm is secured correctly and the system is operating within defined environmental limits.Q: How is the channel isolation configured for this module?A: The 1756-OF8 utilizes internal galvanic isolation between the backplane and the I/O channels. No external isolation is required for standard loop power configurations, though ground referencing must be verified to prevent common-mode noise.

Field Installation Guidelines

  1. Ensure the ControlLogix chassis power is isolated before initiating module insertion.
  2. Align the module keying to the chassis slot to prevent incorrect installation.
  3. Slide the 1756-OF8 into the chassis until the backplane connector is fully engaged.
  4. Secure the module using the top and bottom latching mechanisms.
  5. Terminate field wiring to the Removable Terminal Block (RTB) according to the specific voltage or current loop wiring diagram (0-10 V or 4-20 mA).
  6. Verify shield termination at the cabinet entry point to suppress electromagnetic interference before energizing the chassis.
Sale!
Yokogawa ADR541-P10 S1 Analog Output Module

Yokogawa ADR541-P10 S1 Analog Output Module

The Yokogawa ADR541-P10 S1 is a 16-channel analog output module designed for the CENTUM VP DCS. It features PWM and time-proportional control, providing precise signal management for field devices in demanding industrial automation environments.
Sale!
Allen-Bradley 1794-OE12 Analog Output Module

Allen-Bradley 1794-OE12 Analog Output Module

The Allen-Bradley 1794-OE12 is a 12-channel FLEX I/O analog output module. It offers 16-bit resolution for ±10V and 4-20mA signals with 0.1% accuracy. This high-density module provides precise control for actuators and process valves in distributed I/O systems.
Sale!
Allen-Bradley 1756-OF6VI Isolated Analog Output Module

Allen-Bradley 1756-OF6VI Isolated Analog Output Module

The Allen-Bradley 1756-OF6VI is a 6-channel isolated analog voltage output module for ControlLogix systems. It features 13-bit resolution and 250V channel-to-channel isolation. This module provides precise ±10V control for actuators and drives in demanding industrial environments.
Sale!
Allen-Bradley 1746-NO4I Analog Output Module

Allen-Bradley 1746-NO4I Analog Output Module

The Allen-Bradley 1746-NO4I is a 4-channel analog current output module for SLC 500 controllers. It provides 16-bit resolution for 0-20mA and 4-20mA signals. This compact 0.2kg module ensures precise control for valves and drives in industrial automation.
Sale!
Triconex AO 3481S2 Analog Output Module

Triconex AO 3481S2 Analog Output Module

The Triconex AO 3481S2 is an 8-channel TMR Analog Output module designed for SIL 3 safety systems. It provides high-precision 4-20mA control with triple-redundant voting logic and integrated self-calibration for mission-critical industrial loops.
Sale!
Triconex 3806E Triple Modular Redundant Analog Output Module

Triconex 3806E Triple Modular Redundant Analog Output Module

The Triconex 3806E is a TMR Analog Output module providing SIL 3 rated performance for critical industrial control. Featuring 4-20 mA and 20-320 mA support, it ensures high-precision signal accuracy and fault-tolerant operation in DCS and SIS environments. This module includes advanced self-diagnostics and channel isolation for maximum system reliability
Sale!
Yokogawa AAI543-H50 S1 Analog Output Module

Yokogawa AAI543-H50 S1 Analog Output Module

The Yokogawa AAI543-H50 S1 is a 16-channel analog output module featuring HART 7 communication and ±0.1% accuracy. Designed for CENTUM VP systems, this 4-20mA current output module offers high-density control and robust isolation for critical industrial actuators and valves.
Sale!
GE Fanuc IC200ALG320 VersaMax 4-Channel Analog Output Module

GE Fanuc IC200ALG320 VersaMax 4-Channel Analog Output Module

The GE Fanuc IC200ALG320 is a 4-channel analog output module for the VersaMax I/O system. It delivers precise 0-10 VDC signals with 12-bit resolution, ideal for controlling VFDs, actuators, and proportional valves in automated environments.
Sale!
Triconex 3481 Analog Output Module

Triconex 3481 Analog Output Module

The Triconex 3481 is an 8-channel Analog Output module designed for the Triple Modular Redundant (TMR) Tricon safety system. Featuring SIL 3 compliance, high-precision 4–20 mA signals, and integrated loopback diagnostics, this module provides the fault-tolerant control required for critical actuators, modulating valves, and speed governors in industrial safety environments.
Sale!
Allen-Bradley 1769-OF4 CompactLogix Analog Output Module

Allen-Bradley 1769-OF4 CompactLogix Analog Output Module

The Allen-Bradley 1769-OF4 is a 4-channel analog output module for CompactLogix and MicroLogix 1500 systems. Equipped with 15-bit resolution and support for both voltage and current signals, it provides precise control for VFDs and actuators in industrial environments.