Overview
The Allen-Bradley 74102-481-51 terminal interface board is a printed circuit board assembly engineered for industrial automation and PLC systems. Manufactured by Allen-Bradley (Rockwell Automation), this PCB serves as a critical interface component in control systems requiring reliable device-to-device communication and signal management. Available in used condition, this part offers a cost-effective solution for system maintenance, repair, and expansion projects.
Key Features
- Terminal interface design for multi-device communication in automation systems
- Industrial-grade PCB assembly suitable for harsh control environments
- Compatible with Allen-Bradley drive and PLC architectures
- Proven reliability in legacy and modern industrial control setups
- Used condition—functionally tested and ready for deployment
Technical Specifications
This board functions as a terminal interface module within Allen-Bradley control ecosystems. The 74102-481-51 works in conjunction with related assemblies such as the 74102-480-04A (referenced as Revision 03). As an interface board, it supports signal routing, terminal block connections, and communication pathways between major PLC and drive components. Exact electrical parameters and I/O specifications depend on the hosting system architecture.
Typical Applications
- PLC-to-drive communication links
- Industrial automation control panel integration
- Legacy system repair and component replacement
- System upgrades and expansion projects
- Manufacturing equipment control and monitoring
Compatibility & Replacements
The 74102-481-51 is engineered for use within Allen-Bradley integrated control systems. Related or complementary PCB assemblies in the 74102 series—such as the 74102-480-04A and other terminal interface modules—may be cross-referenced when evaluating replacement options. Always verify part compatibility with your system documentation or contact Rockwell Automation technical support to ensure correct integration. Used parts may carry older date codes; verify form-fit-function match before installation.
