ICS Triplex T8312 Trusted TMR Expander Interface Adapter Unit

Product:ICS Triplex T8312 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.

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.

1 connects to the first Expander Chassis (which has its three ID switches configured to address 2). 2 connects to the second Expander Chassis (which has its three ID switches configured to address 3). … 8 connects to the eighth Expander Chassis (which has its three ID switches configured to address 8). The addresses are set 2,3,4…8 to fit logically with the Processor Chassis virtual address of 1. If more than eight Chassis are needed, a second Expander Interface is required. The address switches on these Chassis are also set 2,3,4…8 but the virtual addresses (as seen by the application and diagnostics) are 9,10,11…15 as set in the System.INI configuration. Refer to PD-8300 for further explanations on ID settings.

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FEATURES

• 40 TMR output channels per module
• Five isolated groups of eight outputs each
• Six-element voted output array
• Comprehensive diagnostics and self-test
• First fault – Fault Tolerant, Second fault – Fail Safe
• Line monitoring on a per channel basis
• Automatic over-current protection – no fuses required
• 2500V dc Opto-Isolation
• Hot replaceable
• Front panel status LEDs for each channel
• Module fault and status indicators
• IEC 61508, SIL 3 safety applications
• On-board 1ms resolution Sequence of Events reporting

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