Overview
The Bailey 6638514A1 operator keyboard is a Rev A10 external membrane keyboard manufactured by ABB Bailey Controls for use in INFI 80 and INFI 90 distributed control systems. This unit serves as a hardware input device for process operators managing industrial automation, flow control, and discrete manufacturing applications. Designed for rugged industrial environments, the membrane keyboard eliminates mechanical key-switch failures and provides sealed, washdown-resistant operation.
Key Features
- External membrane keyboard design for sealed, durable operation in harsh industrial environments
- Rev A10 revision ensures compatibility with mature INFI 80 and INFI 90 systems
- Direct integration with OIS20 (operator interface station) consoles
- Reduced mechanical failure points compared to traditional mechanical keyboards
- Standard #6-32 stud mounting pattern for straightforward panel integration
Technical Specifications
- Manufacturer: ABB Bailey Controls
- Model Number: 6638514A1 (AB 638514A1PS012K)
- Revision: A10
- System Compatibility: INFI 80, INFI 90
- Interface Type: External Membrane Keyboard
- Mounting: #6-32 studs, 0.5" length (standard)
- Condition: Used, fully functional
- OIS Console: OIS20 compatible
Typical Applications
The Bailey 6638514A1 keyboard is used in:
- Process automation and control systems in chemical, petrochemical, and refining industries
- Power generation and utility control stations
- Manufacturing and discrete automation environments where operator input is required
- Legacy system maintenance and replacement where OIS20 consoles are deployed
- Retrofit projects updating older INFI 80/90 control stations
Compatibility & Replacements
Compatible With
- ABB Bailey INFI 80 process control system
- ABB Bailey INFI 90 process control system
- OIS20 operator interface station
- Bailey distributed control architectures from the 1990s–2010s era
- Standard 19" panel mounting configurations
Replaces / Drop-In Replacement For
- Bailey 6638514A1 (same model, all revisions prior to A10)
- Verify compatibility with your system integrator before ordering, as keyboard configurations may vary by console model
Works With
- Bailey INFI control system firmware and operator interface software
- OIS20 external keyboard protocol
- Standard industrial automation engineering platforms supporting legacy Bailey systems
- BMS (Building Management Systems) and process SCADA networks using INFI 80/90
