Trusted TMR Expander Interface Adapter Unit 

Product Overview 

This document provides general information for the Trusted® Triple Modular Redundant (TMR) 

Expander Interface Adapter Unit T8312. Two versions of the Unit are available; one providing 

inter-connection between the Trusted Expander Interface Modules in the Controller Chassis and 

four Expander Chassis (T8312-4), and the other providing inter-connection to seven Expander 

Chassis (T8312-7). 

Features: 

• Allows easy inter-connection of Controller and Expander Chassis. 

• Unit is fully shielded for Electro-Magnetic Compatibility (EMC). 

• Version available for smaller Trusted Systems – up to four Expander Chassis. 

• Locking connectors for increased reliability.

Description 

The Trusted Expander Interface Adapter Unit T8312 comprises four, or seven 12-pin ODU 

connectors (dependent on type of Unit), a printed circuit board (PCB), a 96-way C type 

connector which plugs into a double 96-way connector assembly designed to be connected 

to the Trusted Expander Interface Modules resident in the Controller Chassis. The Unit is 

contained within a metal enclosure and is designed to be clipped onto the Controller Chassis 

rear connectors. A release button is provided to enable the Unit to be disconnected.