Triconex

Triconex 3481 / AO3481 Analog Output Module

SKU AO3481

In stock
  • 12-month warranty
  • Free returns within 30 days

  • Manufacturer: Triconex

  • Product No.: AO3481

  • Country of origin:United States

  • Product Type: Analog Output Modules

  • Payment: T/T, Western Union

  • Weight: 1100g

  • Dimensions: 30.5 cm x 7.6 cm x 26.7 cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

The Triconex 3481 (AO3481) is an analog output module designed for controlling analog field devices in Tricon safety-critical systems. Operating on a Triple Modular Redundant (TMR) architecture, the 3481 processes output data received over the system I/O bus from Main Processor modules and converts digital values into 4-20 mA analog output current signals. The module incorporates three independent execution channels to ensure fault tolerance and output voting before current delivery to connected final control elements.

Features

  • TMR architecture for high reliability in safety-critical control loops
  • 4-20 mA current loop output generation
  • Onboard diagnostic checking and status reporting via module indicators
  • Galvanic isolation between logic side and field control circuitry
  • Online hot-swappable installation without process interruption

Applications

  • Emergency Shutdown (ESD) systems
  • Fire and Gas (F&G) detection and control systems
  • Burner Management Systems (BMS)
  • Turbomachinery control and protection

Technical Specifications

Parameter Specification
Manufacturer Triconex / Invensys
Model 3481
Module Type Analog Output Module (AO3481)
Output Signal Range 4 to 20 mA
System Architecture Triple Modular Redundant (TMR)
Compatibility Tricon Main Chassis / I/O Expansion Chassis

Installation Guidelines

  • Chassis Slots: Insert the module into the designated analog output slot on the primary or expansion chassis backplane.
  • Hot Swap Procedure: When replacing an active module, ensure the secondary slot keying matches before inserting the replacement card.
  • Wiring: Connect field wiring to the corresponding external termination panel (ETP) screw terminals to prevent mechanical stress on module connectors.

FAQ

What output signal range does the module provide?
The module delivers standard 4 to 20 mA current loop output signals to field equipment.

Does the module support hot-swapping during operation?
The module supports online replacement without interrupting active process operations.

Which architecture is utilized for output execution?
The module utilizes a Triple Modular Redundant architecture across three isolated execution channels.

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  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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