The GE IC694CHS392 is a PACSystems RX3i 10-slot serial expansion baseplate (rack) used to extend the capacity of GE RX3i PLC systems. It allows multiple I/O, analog, and special function modules to be installed in a distributed rack architecture, connected to the main CPU rack via a high-speed serial expansion link.
This baseplate is widely used in large-scale industrial automation systems, where control systems require modular expansion beyond a single backplane. It is a key infrastructure component in RX3i architectures, enabling flexible system scaling while maintaining deterministic PLC communication.
Unlike standard I/O modules, the IC694CHS392 is a rack-level hardware platform, forming the structural foundation for PLC module installation.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | GE (General Electric / Emerson legacy) |
| Model | IC694CHS392 |
| Product Type | Serial Expansion Baseplate / PLC Rack |
| Series | PACSystems RX3i |
| Slot Count | 10 slots |
| Module Support | Digital, analog, and special function modules |
| CPU Slot | Not included |
| Power Slot | Required (leftmost slot) |
| Expansion Type | High-speed serial backplane |
| Max Expansion Distance | Up to 15 m (50 ft) |
| Power Module Compatibility | IC694PWR321 / IC694PWR330 / IC694PWR331 |
| Backplane Power Consumption | ~150 mA @ 5 VDC |
| Network Capability | Supports system expansion chaining |
| Mounting Type | Panel / rack mounting |
| Hot Swap Support | Not supported |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
Physical Dimensions (L × W × H)
| Item | Value |
|---|---|
| Size | 105 × 125 × 38 mm |
| Weight | ~0.30 – 0.50 kg |
The compact 105 × 125 × 38 mm structure allows high-density installation inside industrial control cabinets while supporting up to 10 I/O modules in a single expansion rack.
Recommended Related Models
- GE IC694CHS398 – 5-slot RX3i expansion baseplate
- GE IC695CHS012 – RX3i CPU rack base system
- GE IC694MDL646 – Digital input module
- GE IC694MDL740 – Relay output module
- GE IC695CPU310 – RX3i processor module
Popular GE RX3i Rack & System Components
- RX3i CPU main racks and expansion racks
- Distributed I/O baseplate systems
- Industrial power supply modules (IC694PWR series)
- High-speed serial communication backplanes
- Modular PLC expansion architectures
These components are widely used in process automation, manufacturing lines, energy systems, and large-scale industrial control environments.
