GE IC693CHS398J Expansion Baseplate, operates

The GE IC693CHS398J, also cataloged as the IC693CHS398 5-Slot Expansion Baseplate, operates as a dedicated hardware component for localized I/O module bus interconnection and power distribution within GE Series 90-30 platforms. The chassis provides five module slots to extend physical I/O layout capabilities from a primary CPU baseplate via a dedicated expansion cable interface, maintaining high-speed bus communication across all installed cards.

Hardware Specifications

Deterministic Network and I/O Density Scaling

The IC693CHS398J backplane structure maintains high backplane bus communication velocity across all 5 option slots, allowing real-time data propagation back to the host CPU baseplate. By supporting rapid I/O density scaling, the expansion chassis enables additional discrete and analog cards to integrate into the controller network without signal degradation. Internal trace routing and connector pinning adhere to strict firmware flash compatibility guidelines to ensure transparent address mapping and deterministic scan cycles.

Frequently Asked Questions

Q: Can a CPU module be installed directly into the IC693CHS398J baseplate?

A: No, the IC693CHS398J is an expansion baseplate and does not accept a CPU module. CPU modules must be installed in a primary CPU baseplate.

Q: How is power supplied to the modules installed in this 5-slot expansion chassis?

A: Operating power for the backplane and installed I/O modules is delivered from the main CPU baseplate power supply via the expansion cable.

Q: Is bus termination required when linking the IC693CHS398J in an expansion chain?

A: Yes, proper expansion bus cabling and terminal resistors must be applied at the end of the expansion chain to maintain signal integrity across the backplane bus.

Field Installation Guidelines

1. Securely mount the 5-slot baseplate to a panel surface using grounded mounting screws inside an industrial enclosure.
2. Ensure system power to the main CPU rack is completely isolated before attaching or removing expansion cables from the baseplate bus connector.
3. Align I/O modules with the card guide rails of the designated slot and seat them firmly into the backplane connector until latched.
4. Verify that the functional earth ground strap on the baseplate chassis is bonded to the enclosure protective earth (PE) bus.
5. Confirm expansion cable routing is kept clear of high-voltage AC lines to prevent electrical noise interference on the expansion bus.