Overview
The Metrabyte MDI-16R 9619/C adapter (PC6252 Rev C) is a peripheral I/O adapter designed for Metrabus system integration. This module supports connection and control of digital and analog I/O lines in legacy data acquisition and industrial measurement setups. The MDI-16 series adapters were commonly used in 1980s–1990s laboratory automation, test and measurement, and industrial control environments.
Key Features
- 16-channel I/O capability for Metrabus systems
- Rev C board revision with documented compatibility
- Compact form factor suitable for card cage mounting
- Legacy support for discontinued data acquisition platforms
- Used condition—fully tested and functional for drop-in replacement
Technical Specifications
- Model: MDI-16R (9619/C designation)
- Revision: PC6252 Rev C
- I/O Channels: 16
- Connector Type: Metrabus edge connector
- Mounting: Card cage (DIN-rail or backplane compatible)
- Operating Condition: Used, tested, fully functional
Typical Applications
- Retrofit and repair of legacy Keithley MetraByte systems
- Laboratory automation and test equipment
- Industrial process monitoring and control
- Legacy data acquisition platform maintenance
- Equipment restoration and system rebuild projects
Compatibility & Replacements
Compatible With
- Keithley MetraByte Metrabus systems
- MetraByte DAS and DAQ product families
- Legacy ISA and industrial backplane systems
- Custom OEM data acquisition installations
Replaces / Drop-In Replacement For
- Original Metrabyte MDI-16 I/O adapters
- Compatible with legacy PC6252 series configurations
- Verify compatibility with your system integrator before ordering to confirm interconnect requirements.
Works With
- Metrabus protocol and command set
- Legacy MetraByte driver software (DOS, early Windows)
- Standard edge-connector I/O bus architectures
- Custom firmware and application-specific configurations




