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SDS-8311TrustedTM Industrial Control System

TrustedTMTMR Expander Interface-T8311

Issue 5 Jan 2006

FRONT PANEL

T8311

TrustedExpanderInterface

Healthy

Active

Standby

DESCRIPTION

The TrustedTM TMR Expander Interface

module resides in the TrustedTM

ControllerChassis and provides the master interfacebetween the Inter-Module Bus (IMB) in theController Chassis and the Expander Bus. TheExpander Bus allows multiple chassis systemsto be implemented using UTP cableconnections whilst maintaining the faulttolerant, high bandwidth IMB capabilities.

The module provides fault containment

for the Expander Bus, the module itselfand the IMB in the Controller Chassis,ensuring that the effects of thesepotential faults are localised and systemavailability maximised. The module isfault tolerant with HardwareImplemented Fault Tolerant (HIFT),Triple Modular Redundant (TMR)architecture. Comprehensivediagnostics, monitoring and testingprovide rapid fault identification. Hotstandby and module sparingconfigurations are supported, allowing

automatic and manual repair strategies.

Communication between the ExpanderInterface and the TMR Processor is viathe IMB on the backplane of theController Chassis. The IMB providesfault tolerance and high bandwidthcommunications between the InterfaceModules and the TMR Processor. Alltransactions are voted, localising faultsto a Fault Containment Region (FCR)within the IMB should they occur.

Communication between the InterfaceModule and the TMR ExpanderProcessor in the Expander Chassis isvia the Expander Bus. The ExpanderBus is triplicated, point-to-pointarchitecture. Each channel of theExpander Bus comprises separatecommand and response media. Votingis provided at the Expander BusInterface to ensure that cable faults aretolerated, and the remainder of theExpander Processor operates in a fullytriplicated mode, even in case of cablefaults occurring.

The TMR Expander Interface Modulederives its internal voltages from dualredundant +24V dc power supplied viathe module connector from theTrusted

TM Controller Chassisbackplane. Each FCR derives therequired supplies independently.

Non-critical monitoring and modulestatus display functions (front panelLEDs) are also provided.

FEATURES

Triple ModularRedundant (TMR)fault tolerant (3-2-0)operation

HardwareImplemented FaultTolerant (HIFT)architecture

Dedicated hardwareand software test

regimes whichprovide fast faultrecognition andresponse times

Automatic faulthandling withoutnuisance alarming

Hot replaceable

Front panel statusLEDs

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SDS-8311TrustedTM Industrial Control System

TrustedTMTMR Expander Interface-T8311

ICS Triplex Technical data sheets are intended forinformation and guidance. The Companyhas a policy of continual productdevelopment and improvement.Specifications are subject to changewithout notice. For latest information, visitour Website:- www.icstriplex.com

BLOCK DIAGRAM

ELECTRICAL SPECIFICATION

Power Requirements 20 to 32V dc

Maximum Load 40W

Heat Dissipation 40W

Use with Chassis T8300

Module Clocks 50MHz

Expander Bus Data Rate 250Mbps

I/O Interface Expander Chassis backplane

MECHANICAL

SPECIFICATION

Dimensions (HxWxD):241mm x 30mm x 300mm(9.5ins x 1.2ins x 11.8ins)

Weight:2.71kg(6lbs)

ENVIRONMENTAL

Operating Temperature:

-5C to 60C

(23F to 140F)

Operating Humidity:5 to 95%, non-condensing

Vibration:

10 to 57Hz 0.075mm57 to 150Hz 1.0g

Shock:15g, sine wave, 11ms

EMI (IEC 801):ESDAir discharge to 15kVContact discharge to 8kV

Radiated Fields10V/m, 27MHz to500MHz

Transients and Bursts2kV, 2.5kHz fort=60 seconds