ICS TRIPLEX T3481 Guarded Digital Output Module 

Technical Specifications

Model:T3481

Brand:ICS TRIPLEX

Product type:TMR monitored guarded digital output module

System series:Trusted T8000 SIS

Bus type:Triple redundant parallel backplane bus

Compatible modules:Trusted processor boards,AI/DI input modules,backplane base units,redundant power supply

Redundancy:TMR triple modular redundant hot swap architecture

Power bus:5V DC,24VDC field power supply

Operating temperature:0~+60℃

Relative humidity:5~95% non-condensing

Weight:4.20kg

Certification:CE,TÜV,SIL3

System compatibility

This output hardware belongs to ICS TRIPLEX Trusted SIS safety instrumented system and is installed inside Trusted rack cabinet. It receives validated safety interlock commands from TMR processor module and controls field solenoid valves and safety actuators. It communicates with system engineering workstation,widely deployed in oil & gas,petrochemical and chemical plants for ESD emergency shutdown and fire & gas safety protection.

Function

T3481 serves as the high integrity guarded safety output unit of Trusted TMR SIS. It executes safety output commands,provides 16-channel guarded discrete signals to field safety loads. It continuously runs per-channel self-diagnosis to detect open circuit,short circuit and output circuit hardware fault in real time. Its guarded design prevents unintended energization caused by single internal failure.

Installation

Insert the module vertically into dedicated I/O slot of Trusted SIS rack. Complete field actuator wiring and backplane bus connection,verify channel output status and fault diagnosis via Trusted Workbench engineering software.

Interface

‑Gold finger connector for triple redundant backplane bus communication

‑Field terminal block for solenoid valve and actuator connection

‑Onboard TMR voting and guarded output driving circuit

‑LED indicators for channel running,alarm and fault prompt

Circuit feature

Conformal coated multi-layer PCB design,built-in surge and overvoltage protection circuit. Triple channel hardware voting and guarded safety design,fully compliant with SIL3 functional safety hardware specifications.

Feature

T3481 is a spare guarded digital output board for ICS TRIPLEX Trusted SIS system. Common faults include output drive circuit damage,channel detection chip failure and field wiring fault. Confirm rack slot definition and firmware compatibility before replacement.

Diagnostic

When channel open circuit,short circuit or hardware breakdown is detected,the module will trigger fault alarm and upload diagnostic messages to safety workstation.

Built‑in function

Safety guarded discrete control signal output and channel hardware self-diagnosis for Trusted TMR safety rack,used as SIS guarded digital output spare replacement.

Product Brief

T3481 is ICS TRIPLEX Trusted SIL3 16-channel monitored guarded digital output module,supporting TMR triple modular redundant architecture. Verify rack compatibility before ordering. ESD anti-static protection must be followed during handling installation.