Tektronix PIO-12 Programmable Digital I/O Module

Description:

The Tektronix PIO-12 Programmable Digital I/O Module is used to provide programmable digital input and output interfaces for computer-based data acquisition, industrial automation, and instrument control systems. Commonly installed in ISA bus-based industrial computers and automated test systems for monitoring digital signals, controlling external devices, relay switching, alarm monitoring, and machine automation. Maintenance technicians, system integrators, and automation engineers use this digital I/O module for equipment upgrades, process control, test system integration, and replacement of legacy digital interface hardware.

Applications:

The Tektronix PIO-12 is designed for high-speed programmable digital I/O in laboratory, manufacturing, and industrial control environments. It is commonly used for contact closure monitoring, PLC interfacing, relay and solenoid control, digital signal acquisition, alarm monitoring, display driving, and automated test equipment (ATE) where reliable TTL/CMOS-compatible digital communication is required.

Technical Specifications:

• Manufacturer: Tektronix, Inc. (formerly Keithley MetraByte compatible)
• Model: PIO-12
• Product Type: Programmable Digital I/O Module
• Bus Interface: ISA (Industry Standard Architecture) PC Bus
• Digital I/O Lines: 24 Programmable TTL/CMOS-Compatible Lines
• I/O Ports: Port A (8-bit), Port B (8-bit), Port C (8-bit, configurable as two 4-bit ports)
• Programmable Interface: Intel 8255 Programmable Peripheral Interface (PPI)
• I/O Modes: Unidirectional, Bidirectional, and Strobed I/O
• Interrupt Support: Programmable Interrupt Input with Selectable PC Interrupt Levels
• Logic Compatibility: TTL, NMOS, and CMOS Compatible
• Address Selection: User-Selectable Base I/O Address
• Software Compatibility: Compatible with Keithley MetraByte PIO-12 Software and Register Set
• Typical Applications: Digital Process Control, Instrument Automation, Alarm Monitoring, Relay Control, Contact Closure Monitoring, and Automated Test Equipment (ATE)

Common Replacements:

• Tektronix PIO-24 Programmable Digital I/O Module
• Tektronix PIO-96 Programmable Digital I/O Module
• Keithley MetraByte PIO-12 Digital I/O Module