WOODWARD 5453-279 MicroNet TMR Chassis

Technical Overview

The 5453-279 (5453-279) is a specialized 12-slot chassis specifically engineered for Woodward’s MicroNet Triple Modular Redundancy (TMR) control systems. This ruggedized frame serves as the central hardware foundation for mission-critical turbine and engine control applications. By utilizing TMR architecture, the 5453-279 (5453-279) ensures that a single point of hardware failure does not result in system downtime, making it a prerequisite for high-availability industrial automation where safety and continuous operation are non-negotiable.

Detailed Technical Specifications

The following parameters define the structural and operational capabilities of the 5453-279 (5453-279):

• Module Capacity: 12 dedicated high-speed slots for I/O and communication modules.

• Fault Tolerance: Triple Modular Redundancy (TMR) hardware voting logic support.

• Processor Compatibility:

• Supports TMR5200 processors utilizing Redundant Trunk Network (RTN) for integrated I/O sharing.

• Supports TMR040 processors via specialized transceivers and dedicated cabling for point-to-point I/O.

• Power Architecture: Dual dedicated slots for redundant kernel power supply units to ensure consistent logic power.

• Physical Footprint:

• Dimensions: 190 mm x 120 mm x 135 mm.

• Net Weight: 0.9 kg.

• Manufacturing Standard: Produced in the USA to aerospace-grade industrial tolerances.

• System Scalability: Designed to house up to 12 I/O modules for diverse analog, digital, and speed-sensing inputs/outputs.

System Integration & Reliability

The 5453-279 (5453-279) chassis is the "brain stem" of a Woodward MicroNet system. Its primary role is to provide a synchronized backplane for three independent processing paths. In a TMR setup, three CPUs process the same data simultaneously; if one fails or reports an error, the chassis backplane allows the remaining two to outvote the faulting unit, maintaining uninterrupted control. This makes the module indispensable for large-scale power generation, gas turbine control, and critical offshore platforms.