1. Basic Product Information

• Part Number: 5X00226G01

• Manufacturer: Emerson Automation Solutions (Former Westinghouse)

• Product Type: 8-slot I/O backplane base unit / I/O mounting rack

• Compatible System: Ovation DCS Distributed Control System

• Slot Quantity: Maximum 8 standard Ovation electronic I/O modules installable

• Installation Method: Fixed mounting inside standard 19-inch DCS control cabinet

• Power Input: 24VDC logic power from cabinet system power distribution

• Protection Grade: IP20, exclusive for indoor cabinet installation

• Maintenance Feature: Supports hot swap of single I/O module; no power shutdown required for module replacement

• Structure: Integrated backplane bus + integrated power distribution terminal block, standard FRU spare part

2. Core Technical Specifications & Functional Features

2.1 Bus & Power Distribution Design

• Embedded exclusive Ovation high-speed parallel backplane bus, realizes real-time cyclic data exchange between each slot I/O module and upper PCRL interface card/controller CPU

• Independent branch power distribution circuit built inside the base unit; each slot is supplied with isolated 24VDC logic power separately

• Independent fuse overcurrent protection for each channel; short-circuit or overload fault of one single I/O module will not cause power loss or bus failure of other slots on the same backplane

• Unified standardized wiring terminals for main power access, convenient centralized cabinet wiring and later circuit inspection

2.2 Mechanical Structure & Compatibility

• High-strength corrosion-resistant aluminum alloy frame, shock and vibration resistant structure, adapts to long-term low-frequency vibration environment of control room cooling fans and cabinet operation

• Precision guide rails for each slot ensure accurate insertion and reliable gold finger contact of I/O modules

• Fully compatible with all Ovation standard I/O main modules and supporting personality configuration modules; multiple backplanes can be cascaded flexibly for I/O capacity expansion according to project point quantity

• Compact integrated layout saves cabinet installation space, suitable for dense arrangement of multi-group I/O racks

2.3 Environmental & Reliability Indicators

• Operating Temperature Range: 0℃ ~ +60℃

• Storage Temperature Range: -40℃ ~ +85℃

• Relative Humidity: 5%–95% RH, non-condensing

• Complies with IEC 61000 series industrial EMC electromagnetic compatibility standards, strong immunity to power frequency and electromagnetic interference from nearby controller racks

• Service life matches the full lifecycle of complete Ovation DCS equipment; long-term stable operation without maintenance

2.4 Operation & Maintenance Advantages

• Modular split design; only the faulty I/O module needs to be replaced during overhaul, no disassembly or replacement of the entire backplane required

• Unified standard spare part specifications, easy spare parts inventory management for power plants, petrochemical enterprises and other process users

• Applicable to new DCS cabinet assembly, system expansion, old control system renovation and large-scale I/O point reconstruction projects

3. Application Fields