GE Fanuc IC694CHS398 PACSystems RX3i Serial Expansion Backplanes
Manufacturer: GE Fanuc
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Part Number: IC694CHS398
Condition：New with Original Package
Product Type: PLC Backplanes
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
GE Fanuc IC694CHS398 PACSystems RX3i Serial Expansion Backplane
The GE Fanuc IC694CHS398, also cataloged as the IC694CHS398 serial expansion backplane, operates as a dedicated hardware component for housing and interconnecting RX3i system modules within PACSystems RX3i platforms. It manages physical bus connectivity and power distribution across five expansion slots for discrete, analog, and communication cards.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC694CHS398 |
| Brand | GE Fanuc / Emerson |
| Origin | USA |
| Weight | 0.88 kg (1.94 lbs) |
| Dimensions | 35 x 130 x 135 mm |
| Operating Temp | 0 to 40 deg C |
| Power Consumption | 0.85 W (170 mA internal current draw at 5 VDC) |
| Slot Count | 5 slots |
| Bus Voltage | 5 VDC internal logic supply |
| Installation Altitude | 1000 MSL |
| Operating Humidity | 80% non-condensing |
PACSystems RX3i Deterministic Backplane Bus
The IC694CHS398 routes high-speed serial backplane communication signals between expansion modules and the main CPU baseplate. Backplane bus communication velocity allows rapid rack-to-rack data exchanges without imposing bandwidth bottlenecks. Integrated firmware compatibility across the RX3i family ensures predictable scan timing and deterministic I/O density scaling throughout distributed rack topologies.
Frequently Asked Questions
Q: Does the IC694CHS398 expansion backplane support local CPU installation?
A: No, serial expansion backplanes do not host local RX3i CPU modules directly. You must connect this backplane to a primary CPU baseplate using dedicated expansion bus cables.
Q: How does the internal power distribution function across the 5 slots?
A: The backplane distributes logic power provided by the system power supply module across all expansion slots, drawing an internal baseline power consumption of 0.85 W (170 mA at 5 VDC) for its own bus circuitry.
Q: Can Series 90-30 modules be installed directly into this RX3i expansion backplane?
A: Selected Series 90-30 I/O modules are mechanically and electrically compatible with RX3i serial expansion backplanes, provided the host RX3i CPU system configuration supports the specific module catalog numbers.
Field Installation Guidelines
Mount the IC694CHS398 backplane securely onto a grounded metal panel inside the control enclosure using standard mounting screws. Verify that the enclosure frame connects to local earth ground before applying power. Route the serial expansion bus cables away from high-voltage motor conductors by at least 300 mm to suppress electromagnetic interference. Maintain unimpeded vertical air circulation around the rack structure to ensure operating ambient temperatures remain below 40 deg C under full load conditions.