GE 8707-CA-08 8-Slot I/O Module Carrier

The GE 8707-CA-08 is an 8-slot I/O carrier base for Emerson PAC8000 distributed control system. It acts as the mechanical and electrical backbone, providing mounting slots, internal Railbus communication and DC power distribution for up to eight matched I/O modules.

This carrier supports DIN rail or panel mounting and features an isolated earth bar for cable shielding. It is widely stocked as spare parts for hazardous-area automation retrofit in oil & gas, chemical and power industries.

Main Specifications

• Brand: GE / Emerson; Model: 8707-CA-08; Type: 8-Slot I/O Module Carrier
• Applicable System: PAC8000 distributed I/O control platform
• Core Tasks: Module mounting, Railbus signal transmission, power distribution, shield grounding
• Installation: DIN rail or flat panel mounting in control cabinets
• Capacity: Supports up to 8 PAC8000 series I/O modules and field terminal units
• Bus: Internal Railbus for address, data and power routing
• Operating Environment: 0℃ ~ +60℃, 5%‑95% RH non‑condensing, industrial anti‑vibration grade
• Certifications: CE, suitable for hazardous area approved configurations

Core Functions

• Provide standard slots for installing digital/analog I/O modules and corresponding field terminal assemblies.
• Distribute DC field power and internal Railbus communication signals to each mounted module reliably.
• Equipped with isolated earthing bar to connect cable shields and reduce electromagnetic interference.
• Realize data exchange between BIM bus interface modules, controllers and each I/O unit through the backplane bus.
• Modular carrier design allows independent replacement of I/O modules without disassembling the entire rack base.
• Rugged molded housing and printed wiring board adapt to long-term operation in industrial control rooms.

Application Scenarios

• Spare-part replacement for PAC8000 control cabinets in oil & gas, chemical, petrochemical and power plant sites.
• Base mounting hardware for distributed I/O cabinets used in explosion-proof hazardous process loops.
• Maintenance backup inventory for renovation and after-sales maintenance projects of legacy PAC8000 automation systems.
• Matching carrier cooperating with BIM interface modules, power supplies and PAC8000 analog/digital I/O modules.
• Retrofit replacement for aged carriers with backplane damage, poor contact and power distribution faults.

• Global aftermarket spare supply for automation maintenance teams maintaining Emerson PAC8000 distributed control equipment worldwide.