Overview
The Allen-Bradley 1775-CM communication cable is a PLC-3 memory communication cable assembly engineered for secure, dependable communication between legacy Allen-Bradley PLC systems and peripheral devices. Though discontinued by the manufacturer, this cable remains a critical spare part for maintaining uptime in established automation environments where PLC-3 hardware is deployed.
Key Features
- 50-pin D-sub connectors — Standard industrial connector format for reliable signal transmission
- PLC-3 compatibility — Purpose-built for Allen-Bradley PLC-3 systems and memory expansion modules
- Industrial-grade construction — Shielded and jacketed for electromagnetic interference mitigation in factory environments
- Proven reliability — Decades of field deployment in automation control cabinets and control centers
Technical Specifications
- Connector Type: 50-pin D-sub (male/female)
- Application: PLC-3 Memory and inter-device communication
- Manufacturer Status: Discontinued
- Part Number: 965047-05
- Condition: New (No Original Box)
Typical Applications
The 1775-CM cable serves critical roles in legacy automation systems:
- PLC-3 processor-to-memory module communication
- Remote I/O expansion rack connectivity
- Control center to distributed I/O connections
- Retrofit and spare parts inventory for legacy systems undergoing maintenance
Compatibility & Replacements
The 1775-CM is specifically designed for Allen-Bradley PLC-3 systems and cannot be substituted with modern Logix processors or EtherNet/IP infrastructure without redesign. For systems requiring modern alternatives, consult Rockwell Automation documentation or contact your systems integrator. As a discontinued part, supply is limited; inventory from authorized surplus dealers and specialized distributors is the primary source for replacement stock.
