ICS Triplex T8311 Trusted TMR Expander Interface

SKU T8311

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12-month warranty
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Manufacturer: ICS Triplex
Product No.: T8311
Country of origin:United States
Product Type: Trusted TMR Expander Interface
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1140g
Dimensions: 266 mm x 31 mm x 303 mm (H x W x D)
Shipping port: Xiamen
Warranty: 12 months

Description

The ICS Triplex T8311 is a Triple Modular Redundant (TMR) expander interface module designed for the Trusted safety and critical control system chassis. Operating within an I/O module slot of the main Controller Chassis, this module serves as the master interface bridging the internal Inter-Module Bus (IMB) and the external Expander Bus. The T8311 executes hardware-implemented fault tolerant (HIFT) operations to extend high-bandwidth, fault-tolerant chassis communication across multiple expander chassis using unshielded twisted pair (UTP) cabling or fiber-optic connections. By providing full fault containment across three main Fault Containment Regions (FCR A, B, and C), the expander interface module isolates potential faults to maximize system availability in safety instrumented functions (SIF) and critical process control applications.

Features

Triple Modular Redundant (TMR) fault tolerant architecture supporting 3-2-0 operation.
Hardware Implemented Fault Tolerant (HIFT) design with Byzantine voting across Fault Containment Regions.
Fast fault recognition and automatic fault handling without nuisance alarming.
Support for hot replacement and hot-standby pair configurations.
Front panel LED indicators displaying overall module health, active state, and standby state.

Applications

Safety Instrumented Systems (SIS)
Emergency Shutdown (ESD) systems
Critical process control and burner management systems
Distributed multi-chassis safety automation systems requiring remote expansion

Technical Specifications

Parameter	Specification
Manufacturer	Rockwell Automation / ICS Triplex
Module Type	TMR Expander Interface Module
Module Location	T8100 I/O Module Slot
Backplane (IMB) Supply Voltage	20 Vdc to 32 Vdc
Power Dissipation	54 W Backplane Supply
Field Supply	N/A
Isolation	50 V Basic Insulation, Module to Backplane Supply
Fusing	Not User Serviceable
Expander Bus Data Rate	1.5 Gbps
Inter-Module Bus Data Rate	Up to 12.5 Mbps
Max Distance (UTP Copper Cable TC-301)	30 m
Max Distance (T8314 Fiber TX/RX)	10 km
Operating Temperature	0 degC to +60 degC (+32 degF to +140 degF)
Storage Temperature	-25 degC to +70 degC (-13 degF to +158 degF)
Relative Humidity	10%-95%, non-condensing
Dimensions (H x W x D)	266 mm x 31 mm x 303 mm (10.5 in x 1.2 in x 12.0 in)
Weight	1.14 kg (2.5 lb)

Connections/Interfaces

Connector Pin	Function
SK1	185-way DIN41642 Backplane IMB Connector
PL4	96-way DIN41612 C-type Expander Chassis Bus Connector

Installation Guidelines

Slot Configuration: Install modules in adjacent I/O slots within the Controller Chassis as a pair, starting with an odd-numbered slot on the left.
Interconnection: Use the T8312 Expander Interface Adapter Unit to interconnect paired interface slots.
Mechanical Keying: Ensure field cable keying pins 1, 2, and 6 are removed for the T8311 module prior to fitting.
Handling Precautions: Static sensitive components are present; observe ESD handling precautions and do not touch exposed connector pins or open the module housing.
Hot Swapping: When replacing an active module, release top and bottom ejectors and wait until the module transitions to standby mode before removal. Never remove an active module.

Compliance and Certifications

TÜV Certified IEC 61508 SIL 3

FAQ

What is the primary function of the expander interface module?

The module acts as the master interface bridging the Inter-Module Bus in the controller chassis with the Expander Bus, enabling multi-chassis expansion while maintaining fault-tolerant communication.

What is the maximum communication distance supported by the device?

The device supports up to 30 m using UTP copper cables (TC-301) and up to 10 km when using fiber optic transceivers (T8314).

How should the module be safely removed during online operation?

Release both ejector tabs and wait until the active indicator turns off and the standby indicator illuminates before removing the module to prevent system shutdown.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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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.

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TECHNICAL SPECIFICATIONS

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