Overview
The Allen-Bradley 77128-144-52 is a port adapter converter engineered for serial communication in legacy industrial control environments. As a discontinued component, this adapter is sought after by maintenance technicians and system integrators working with established Allen-Bradley PLC installations that require RS-232 connectivity.
Key Features
- RS-232 serial communication standard for compatibility with legacy systems
- Open-style mounting design for flexible installation options
- Connector/terminal configuration for straightforward wiring integration
- Proven Allen-Bradley manufacturing reliability and build quality
- Discontinued product—ideal for exact replacement in mature control systems
Technical Specifications
This adapter is classified as a connector/terminal component for serial port applications in industrial automation. The open-style, mountable design allows integration into existing control panel layouts and cabinet assemblies.
Typical Applications
- PLC-5 and legacy Allen-Bradley system RS-232 connections
- Serial communication interfaces in mature industrial control systems
- Maintenance and replacement of aging port adapters in operational facilities
- System integration where exact connector compatibility is required
Compatibility & Replacements
The 77128-144-52 is a legacy component no longer manufactured by Rockwell Automation. For systems still requiring RS-232 connectivity, this adapter serves as a direct replacement for original installations. Engineers evaluating modernization should consult with Rockwell Automation or system integrators regarding current-generation Ethernet/IP alternatives for new deployments.
