1. Basic Product Information

• Part Number: 5X00226G02

• Manufacturer: Emerson Automation Solutions (Former Westinghouse)

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

• Compatible System: Ovation DCS Distributed Control System

• Slot Capacity: 8 standard Ovation electronic I/O module slots

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

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

• Protection Grade: IP20, indoor control cabinet exclusive installation

• Maintenance Feature: Single I/O module hot swappable; no backplane power shutdown required for replacement

• Structure: Integrated backplane bus + independent branch power distribution terminals, standard FRU spare part

• Origin: United States

2. Core Technical Specifications & Functional Features

2.1 Bus & Power Distribution Upgrade Design

• Upgraded Ovation dedicated high-speed backplane bus with enhanced differential signal shielding, lower crosstalk and more deterministic cyclic data refresh rate, suitable for fast closed-loop control loops

• Each slot is equipped with independent fuse overcurrent protection; short-circuit or overload of one I/O module only cuts off the corresponding slot power, without affecting other slots and the whole backplane bus operation

• Optimized internal power distribution circuit with lower voltage drop, stable 24VDC power supply even under full-load 8-module simultaneous operation

• Standard unified wiring terminals for main power access, convenient centralized wiring construction and later circuit troubleshooting

2.2 Mechanical Structure & Compatibility Advantages

• Reinforced high-strength aluminum alloy frame with thicker anti-corrosion coating, stronger shock and vibration resistance than the G01 version, adapting to long-term low-frequency vibration environment of control room cooling fans

• Precision positioning guide rails and gold finger locking structure ensure reliable electrical contact after repeated plugging and unplugging of I/O modules

• Fully backward compatible with all Ovation standard I/O main modules and personality modules; multiple backplanes can be cascaded flexibly for I/O point capacity expansion

• Compact integrated layout saves cabinet installation space, supports dense multi-group I/O rack arrangement

2.3 Environmental & Reliability Indicators

• Operating Temperature Range: 0℃ ~ +60℃

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

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

• Complies with full IEC 61000 series industrial EMC electromagnetic compatibility standards, stronger immunity to strong electromagnetic interference from nearby controller racks and high-power equipment

• Conformal coating optional for harsh corrosive environment control rooms, extending service life

• Certified with CE, UL international industrial safety certifications

2.4 Operation & Maintenance Advantages

• Modular split design; only the faulty single I/O module needs replacement during maintenance, no disassembly or replacement of the entire backplane required

• Universal interchangeability with G01 version backplanes, seamless substitution during old system renovation without cabinet reconstruction

• Standard spare part specifications, easy unified inventory management for energy and chemical process enterprises

• Applicable to new high-reliability cabinet assembly, system capacity expansion, old DCS system upgrade and large-scale I/O point reconstruction projects

3. Application Fields