GE IC693CHS398C Expansion Baseplates

The GE IC693CHS398C serves as the primary IC693CHS398 10-Slot Expansion Baseplate utilized to execute passive bus expansion and parallel power distribution across GE Series 90-30 platforms. Accommodating one dedicated power supply module in the leftmost position alongside ten universal I/O slots, the passive backplane routes data and power signals from the primary CPU chassis over a single 50-pin expansion cable port across operating environments up to 60 deg C.

Hardware Specifications

Deterministic Network and High-Density Expansion

The IC693CHS398C chassis structure maintains high backplane bus communication velocity across all 10 module positions, enabling deterministic parallel signal transmission back to the host CPU rack. Designed to facilitate dense I/O density scaling, the expansion backplane supports any combination of discrete, analog, and specialty modules without inducing latency. Internal signal trace patterns strictly observe firmware flash compatibility parameters to ensure transparent addressing across extended multi-rack topologies.

Frequently Asked Questions

Q: Does the IC693CHS398C passive backplane contain internal energy storage or active electronic components?

A: No, the backplane is completely passive and contains zero internal energy storage components, drawing logic and field power directly from the installed power supply module.

Q: What is the maximum permitted cable distance between the primary CPU baseplate and the IC693CHS398C?

A: The expansion chassis supports cable runs up to 50 feet away from the primary CPU base, requiring shielded expansion cabling for lengths exceeding 5 feet to maintain bus signal integrity.

Q: Can an I/O module be inserted into the dedicated leftmost slot of the IC693CHS398C baseplate?

A: No, the dedicated leftmost slot is exclusively keyed and wired for the Series 90-30 system power supply module.

Field Installation Guidelines

1. Mount the heavy-duty steel chassis securely to a flat panel or rack enclosure using four mounting screws.
2. Install the system power supply module into the dedicated leftmost slot prior to populating any peripheral I/O cards.
3. Attach the 50-pin expansion cable between the expansion port of the primary CPU rack and the IC693CHS398C port, ensuring system power is completely isolated before connection.
4. Verify physical slot keying alignment before inserting individual discrete, analog, or specialty I/O cards into slots 1 through 10.
5. Bond the chassis protective grounding point directly to the cabinet protective earth (PE) bus to suppress noise on signal communication paths.