GE Fanuc PACSystems RX3i IC695CHS016 16-Slot Universal Backplane

Functional Description

The IC695CHS016 is a high-capacity universal backplane designed for the PACSystems RX3i controller platform. Featuring 16 slots, this rack provides the physical and electrical infrastructure required to house CPUs, power supplies, and high-density I/O modules. The IC695CHS016 (Part Number: IC695CHS016) is unique in its dual-bus architecture, supporting both the high-speed RX3i PCI bus and the serial bus utilized by legacy Series 90-30 modules. This allows for seamless migration and integration of older hardware within a modern control environment.

Technical Specifications

The following technical parameters outline the physical requirements and electrical limits for the IC695CHS016:

• Series Architecture: PACSystems RX3i

• Slot Capacity: 16 Universal slots

• Bus Support: Integrated PCI and Serial bus connectors

• Internal Current Draw: 600 mA at 3.3 VDC; 240 mA at 5 VDC

• Input Voltage: +24 VDC (via terminal block TB1)

• Terminal Block Interface: Terminal 7 (Isolated 24VDC), Terminal 8 (Isolated Ground)

• Hot-Swap Capability: Supported for compatible RX3i modules

• Grounding: Integrated grounding bar included

• Weight: 4.56 lbs (2.07 kg)

Installation and Environmental Requirements

To ensure optimal performance and long-term reliability of the IC695CHS016, specific installation standards must be followed:

• Mounting Orientation: Horizontal mounting is required for proper heat dissipation.

• Minimum Clearance: A minimum of 102 mm (4 inches) must be maintained on all sides (top, bottom, and sides) for ventilation.

• Enclosure Protection: The unit must be installed in a NEMA/UL Type 1 (IP20) or greater enclosure; IP54 is recommended for harsh industrial environments.

• Wiring Standards: Recommended field wiring size is 14 to 22 AWG to ensure secure connections to the terminal block.

Versatility and System Expansion

The 16-slot density of the IC695CHS016 makes it the primary choice for large-scale automation projects where I/O concentration is high. By supporting both the latest RX3i advanced modules and legacy Series 90-30 I/O, it provides a flexible hardware bridge for facility upgrades. The integrated PCI bus allows for rapid data exchange between the CPU and intelligent modules, while the serial bus maintains compatibility with standard digital and analog expansion modules.