Acces PCI-DIO-72 Digital Input / Output Module
Acces Digital Input Board. Voltage / Current Range: +5V supply, 32 mA source / 64 mA sink per line, Channels: 72, Voltage: +5 VDC available to user.
- Model
- Acces PCI-DIO-72
- Calibration
- Available on request
- Price
- $550
- Status
- In stock
- RFQ ref
- PCI-DIO-72
This unit
The Acces PCI-DIO-72 is a 72-channel digital input/output module for PCI bus systems, delivering flexible interfacing for industrial automation, data acquisition, and control applications. Built on programmable peripheral interface (PPI) architecture using 8255-5 chips, the module provides individually buffered I/O lines with 32 mA sourcing and 64 mA sinking capability per channel. Port configuration - two 8-bit ports (A, B) and two 4-bit ports (C_high, C_low) per PPI group - is software-selectable as input or output latches.
Output buffers feature 10 kΩ pull-up resistors to +5 VDC. The card occupies 16 bytes of I/O address space with system-assigned base addressing and requires no manual jumper configuration.
Technical Specifications
- Interface: PCI Bus
- Digital I/O Channels: 72
- Current Drive: 32 mA source / 64 mA sink per I/O line
- Programmable Peripheral Interface Chips: 8255-5
- Port Configuration: Two 8-bit ports (A, B) and two 4-bit ports (C_high, C_low) per PPI; all ports independently configurable as input or output latches
- Group C Nibble Control: Each 4-bit group independently selectable as input or output
- Output Pull-up Resistors: 10 kΩ to +5 VDC
- I/O Address Space: 16 bytes
- Supply Voltage: +5 VDC available to user
- Logic Level Support: 5 V, 3.3 V, 2.5 V, 1.8 V (jumper selectable on compatible models)
- PCI Compatibility: Universal PCI, PCI-X, 3.3 V and 5 V compatible
- Card Length: 12.2 inches (310 mm)
- Connector: 50-pin male header on mounting bracket; ribbon cable compatible
Key Features
- Automatic operating system detection (Windows 95/98/NT without manual base address or IRQ configuration)
- Driver and utility support for DOS, Linux, and Windows XP and newer
- Long PCI slot form factor
- Each I/O line fully buffered
Typical Applications
- Industrial automation control systems
- Data acquisition platforms
- Sensor and device interfacing
- Digital signal routing and switching
Compatibility & Integration Automatic plug-and-play detection eliminates manual configuration. The module integrates into standard PCI motherboards and is compatible with industry-standard I/O rack systems.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | '+5V supply, 32 mA source / 64 mA sink per line |
Acces PCI-DIO-72 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Acces PCI-DIO-72. 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 Acces PCI-DIO-72 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.
Acces PCI-DIO-72 price
This Acces PCI-DIO-72 is listed at $550. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Acces PCI-DIO-72 calibration cost
NIST-traceable calibration for the Acces PCI-DIO-72 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 →
