1. Basic Product Information

• Part Number: 5X00225G01

• Manufacturer: Emerson Automation Solutions (Former Westinghouse)

• Product Type: 4-slot I/O backplane base unit / I/O mounting rack

• Compatible System: Ovation DCS Distributed Control System

• Slot Capacity: Supports installation of maximum 4 standard Ovation electronic I/O modules

• Installation Method: Fixed mounting inside standard DCS control cabinet

• Power Input: 24VDC system backplane power supply

• Total Power Consumption: Max 20W

• Overall Dimension: 232mm × 132mm × 61mm

• Net Weight: Approx 2.5kg

• Housing Material: High-strength anti-corrosion aluminum alloy

• Protection Grade: IP67 (module mounting interior IP20, cabinet installation area)

• Maintenance Feature: Supports hot swap of individual I/O modules on the base unit, no need to cut off base unit power during module replacement

• Structure: Integrated backplane bus + power distribution terminal integrated design

2. Core Technical Specifications & Functional Features

2.1 Electrical Bus & Power Distribution Design

• Embedded dedicated Ovation high-speed parallel backplane bus, realizing real-time bidirectional data transmission between each inserted I/O module and upper controller interface card

• Integrated independent multi-channel power branching circuit inside the base unit; distributes 24VDC logic power to each slot separately

• Built-in branch fuse overcurrent protection; overload or short-circuit fault of a single inserted I/O module will not cause power failure of other slots on the same base unit

• Standard unified wiring terminals for cabinet main power access, convenient centralized wiring construction

2.2 Mechanical Structure & Expandability

• Compact integrated aluminum alloy frame, anti-vibration and shock-resistant structure, adapts to long-term vibration environment inside power plant and chemical plant control cabinets

• Each slot adopts precise positioning guide rail design, ensuring accurate insertion and reliable electrical contact of I/O modules

• Multiple 4-slot base units can be cascaded and combined to expand the total number of I/O points according to project measurement & control point quantity requirements

• Universal compatibility: fits all standard Ovation series I/O main modules and supporting personality configuration modules

2.3 Environmental & Reliability Indicators

• Operating Temperature Range: -40℃ ~ +70℃

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

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

• Fully complies with IEC 61000 series EMC electromagnetic compatibility standards, strong anti-interference ability

• Long service life design matching the full lifecycle of Ovation DCS complete set equipment

• Passed CE, UL international industrial safety certification

2.4 Operation & Maintenance Advantages

• Modular split structure, only the faulty single I/O module needs to be replaced during maintenance, the base unit itself does not need disassembly

• Unified standard spare part specifications, convenient spare parts inventory management for process enterprises

• Suitable for new DCS cabinet assembly, system capacity expansion, old control system renovation and I/O point reconstruction projects

3. Application Fields