GE PACSystems RX3i IC694CHS392 – Universal Backplane for Modular PLC Architectures

The GE IC694CHS392 is a PACSystems RX3i backplane designed to host CPU, power supply, and I/O modules in a clean, serviceable layout. From my experience, it’s the sort of baseplate you choose when you want long-term stability, easy module access, and a straightforward path to expand or migrate from existing 90-30/RX3i assets. You might notice that it slots right into standard control cabinets and typically works with the familiar RX3i power supplies and CPUs, so project teams don’t have to relearn everything.

Order Placement Process and Guarantees

• Warranty: 365 days
• Lead time: 1 week if in stock; no more than one month at the latest
• Payment terms: 50% advance payment; full payment before delivery
• Express carriers: FedEx, UPS, DHL

Key Features

• RX3i ecosystem compatibility – Works with PACSystems RX3i CPUs, power supplies, and I/O modules, making upgrades and expansions straightforward.
• Modular, service-friendly layout – Clear slot addressing and keyed connectors typically reduce wiring mistakes and speed up maintenance.
• Backplane power distribution – Powered via an RX3i power supply module installed on the base; no separate power wiring to the backplane itself.
• Robust industrial build – Designed for cabinet installation in factory environments; in many cases it runs reliably across typical industrial temperature and humidity ranges.
• Scalable control – Add digital/analog I/O, motion, and comm modules as the process grows, without changing the cabinet footprint.
• Migration-friendly – Commonly used where teams are standardizing on RX3i while maintaining continuity with proven GE/Emerson control hardware.

Technical Specifications

Related or Supporting Products

• IC695PSA040 / IC695PSD040 – RX3i power supplies commonly paired with this backplane.
• IC695CPU315 / IC695CPU320 – RX3i CPUs for mid-to-large control tasks; select based on memory and performance needs.
• IC694MDL645 / IC694MDL654 – Digital input/output modules; fast response for machine I/O.
• IC694ALG223 / IC694ALG392 – Analog input/output modules; suitable for process signals (e.g., 4–20 mA, 0–10 V) depending on module.
• IC695CHS012 / IC695CHS016 – Alternative RX3i universal backplanes if you need different slot capacities or a newer mechanical format.

Installation & Maintenance

• Cabinet & mounting – Mount the backplane on a rigid, grounded panel. Keep at least 50 mm clearance above/below for airflow. Horizontal alignment typically improves module retention and cooling.
• Power & grounding – Bond cabinet ground to the designated backplane/PSU ground points. Route 24 VDC power to the RX3i PSU as specified; avoid sharing supply returns with high-noise loads.
• Wiring & segregation – Run field I/O cables away from high-voltage and VFD motor leads. Use shielded twisted pair for analog signals; terminate shields per GE wiring practices.
• Safety – De-energize the system before inserting/removing modules. ESD protection is recommended when handling boards or connectors.
• Routine maintenance – Inspect module latches and connectors quarterly. Lightly clean dust with dry air. Firmware updates (CPU/comm modules) should be scheduled during planned downtime and validated in a test cell when possible.
• Spare strategy – Keeping one spare backplane on hand typically shortens recovery time after mechanical damage or connector wear.

Quality & Certifications

• Designed for industrial use; commonly found with CE and UL/cUL approvals for RX3i system components
• RoHS compliance is typical within the RX3i family
• Manufacturer’s standard quality processes (ISO-based production at the platform level)
• Warranty provided by us: 365 days (see ordering terms above)