I/O modules

The GE IC693CHS392J expansion rack provides 10 I/O slots for system scalability and flexible configuration. This passive backplane unit connects to the main CPU rack for distributed control architectures. Its sturdy chassis measures 270 mm in height, 445 mm in width, and 120 mm in depth.

Technical Specifications

Expansion Architecture and System Scalability

The GE IC693CHS392J provides 10 I/O slots for expanding control system capacity beyond the main rack. Users can add this rack to any Series 90-30 system with available CPU expansion ports. The passive backplane design eliminates active components that could fail over time. Each slot accepts standard Series 90-30 I/O modules for consistent system integration.

Power Distribution and Backplane Design

This rack distributes 5 V DC power to all connected modules through the passive backplane. The backplane supports up to 5.0 A total current draw from installed I/O modules. Two power supply positions allow flexible placement of the power supply module. The left or right placement option accommodates various cabinet layouts and wiring routes.

Physical Construction and Chassis Durability

The GE IC693CHS392J chassis uses powder-coated steel construction for maximum industrial durability. This robust material resists corrosion, impact, and vibration in factory environments. The beige finish matches other Series 90-30 components for uniform appearance. The chassis includes mounting tabs on the top and bottom edges for secure panel installation.

Backplane Connectors and Slot Configuration

Each slot contains a 48-pin connector that interfaces with the I/O module edge connectors. The backplane uses gold-plated contact surfaces for reliable signal transmission. The passive design routes signals between slots without active processing or buffering. Module slots accept all Series 90-30 discrete, analog, and communication modules.

Expansion Cable and Remote Installation

A shielded ribbon cable connects this rack to the main CPU rack or previous expansion rack. The maximum cable length reaches 15.2 m (50 ft) for flexible physical placement. This distance permits positioning I/O racks near field devices for reduced wiring costs. The cable carries both power and data signals between the racks efficiently.

Installation and Panel Mounting

Mount the GE IC693CHS392J on a flat panel surface using the factory-provided mounting tabs. Use four M6 screws to secure the rack firmly to the mounting surface. Ensure at least 100 mm clearance above and below the chassis for airflow and cable entry. Mounting orientation remains either vertical or horizontal depending on cabinet space.

Module Insertion and Removal

Insert modules into the GE IC693CHS392J slots using the standard guide rails and locking mechanism. The chassis supports hot-swapping in systems with redundant power supplies. Remove modules by pressing the retaining tabs and pulling the module handle forward. The passive backplane requires no power-down sequence for module exchange operations.

Details