Keithley / MetraByte PIO-12 Digital I/O Module
Keithley / MetraByte Digital Input Board. Channels: ** 24 lines across three ports, Current: ** 1.7 mA, Current: ** –200 µA.
- Model
- Keithley / MetraByte PIO-12
- Calibration
- Available on request
- Price
- $110
- Status
- In stock
- RFQ ref
- PIO-12
This unit
The Keithley/MetraByte PIO-12 is a 24-line parallel digital I/O interface board for IBM PC and compatible systems. It has configurable TTL/CMOS-compatible input and output channels via three 8-bit ports, with interrupt capability and flexible address decoding for industrial automation, laboratory research, and educational applications.
Technical Specifications
Digital I/O Channels: 24 lines across three ports
Port Configuration: Port A and Port B are byte-wide (8 bits each), independently configurable as inputs or outputs. Port C is byte-wide and partitionable into Port C Lower and Port C Upper (4 bits each), each independently configurable as input or output
Logic Levels: TTL/CMOS-compatible with input logic low -0.5V to 0.8V and input logic high 2.0V to 5.0V
Sink Current: 1.7 mA
Source Current: –200 µA
Bus Interface: ISA slot
Address Decoding: 10-bit I/O address decode; uses four consecutive I/O addresses
Interrupt Support: Six interrupt levels available on PC bus with active-low enable line
Power Requirements: ±5V, ±12V from computer supply; +5VDC @ 1.6A typical
Operating Temperature: 0 to 50°C (32 to 122°F)
Storage Temperature: 0 to 70°C (32 to 158°F)
Humidity: 20 to 90% non-condensing
Key Features
37-pin D-type connector
CMOS pull-up capability via external 10kΩ resistor to +5V
Compact form factor: 13.2 in L × 4.25 in H × 0.75 in D (335mm × 108mm × 19mm)
Typical Applications Industrial automation, laboratory instrumentation, real-time device monitoring and control, educational embedded systems development.
Compatibility & Integration Compatible with IBM PC/XT, PC AT, and compatible computers. Supports DriverLINX software framework with LabVIEW, TestPoint, VisualSCOPE, and ExceLINX drivers. Accessory panels include screw-terminal connectors (STC-37), electromechanical relay boards (ERB-24, ERA-01), and ribbon cable assemblies (C-1800).
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | ±12V supply |
Keithley / MetraByte PIO-12 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley / MetraByte PIO-12. Calibration covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Keithley / MetraByte PIO-12 faults: ESD-damaged input protection, failed driver ICs, connector pin damage. Most failures involve ESD-damaged input protection circuitry, failed logic driver ICs, or mechanical connector pin damage. Board-level component replacement is standard practice.
Keithley / MetraByte PIO-12 price
This Keithley / MetraByte PIO-12 is listed at $110. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley / MetraByte PIO-12 calibration cost
NIST-traceable calibration for the Keithley / MetraByte PIO-12 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
