1. Product Overview

Product Name: PCI Bus Isolated 32/32 High Voltage Channel Digital I/O PCI Card
Model: PIO-32/32H(PCI)H
Series: PIO-H Series (High Voltage, Opto-Isolated Digital I/O Boards)
Article Number: PIO-32/32H(PCI)H
Manufacturer: CONTEC Co., Ltd.
Version: Ver.1.12 (previous Ver.1.10)

The CONTEC PIO-32/32H(PCI)H is a PCI bus–compliant digital input/output interface board designed for high-voltage industrial control and automation systems. It provides 32 optically isolated input channels and 32 optically isolated open-collector output channels, supporting 24–48 V DC operation. The board is engineered for robust noise immunity, flexible interrupt handling, and reliable high-voltage switching, making it suitable for factory automation, process control, and equipment monitoring applications.

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2. Key Features

- High-Voltage I/O Compatibility: Supports 24–48 V DC input and output levels, suitable for industrial control environments.
- Optical Isolation: Complete optocoupler isolation between the PCI bus and I/O interface ensures 500 Vrms dielectric strength and excellent noise immunity.
- Flexible Power Configuration: Each group of 16 channels shares a common external power supply, allowing independent voltage domains.
- Interrupt Capability: All 32 input channels can be configured as interrupt inputs, with selectable rising or falling edge triggers.
- Digital Noise Filter: Built-in digital filter prevents false triggering due to noise or contact bounce.
- High Output Drive: Each output channel supports up to 60 V DC and 100 mA sink current.
- Protection Circuits: Zener diode surge protection and PolySwitch overcurrent protection (per 8 channels) safeguard outputs.
- Low Residual Voltage: ≤ 0.5 V at ≤ 50 mA, ≤ 1.0 V at ≤ 100 mA ensures compatibility with TTL-level inputs.
- Software Support: Includes Windows driver library (API-PAC(W32)), Linux driver (API-DIO(LNX)), and LabVIEW VI-DAQ library.
- Multiple Board Support: Up to 16 boards can be installed in a single system.
- Universal PCI Interface: 32-bit, 33 MHz PCI bus with universal keying (supports both 3.3 V and 5 V slots).
- RoHS, CE, and VCCI Certified: Complies with major environmental and electromagnetic standards.

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3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Input Channels | 32 opto-isolated channels (negative logic, current sink compatible) |
| Output Channels | 32 opto-isolated open-collector channels (current sink type) |
| Input Voltage Range | 24–48 V DC (±10%) |
| Input Resistance | 15 kΩ |
| Input ON Current | ≥ 1.36 mA |
| Input OFF Current | ≤ 0.16 mA |
| Output Voltage (Max) | 60 V DC |
| Output Current (Max) | 100 mA per channel |
| Isolation Voltage | 500 Vrms (bus to I/O) |
| Response Time | ≤ 200 µs |
| External Power Supply | 24–48 V DC (±10%) |
| Power Consumption (PCI Bus) | +5 V DC, 200 mA (max) |
| Operating Temperature | 0–50 °C |
| Operating Humidity | 10–90% RH (non-condensing) |
| Signal Extension Distance | Approx. 50 m (depends on wiring environment) |
| PCI Bus Specification | 32-bit, 33 MHz, universal keying |
| Dimensions | 176.41 mm (L) × 105.68 mm (H) |
| Weight | Approx. 215 g |
| Connector Type | 96-pin half-pitch D-type female (HONDA PCR-E96LMD) |
| Dielectric Strength | 500 Vrms |
| Certifications | RoHS, CE, VCCI |
| Board Count Supported | Up to 16 boards (including master) |

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4. Functionality

The PIO-32/32H(PCI)H provides isolated digital I/O interfacing between a host PC and external devices. Each input channel detects the ON/OFF state of current-driven devices such as switches, sensors, or transistor outputs. Each output channel drives external loads such as relays, LEDs, or TTL-level inputs through open-collector transistor outputs.

Input Operation:
- Accepts current-sinking outputs from external devices.
- Requires external 24–48 V DC power supply.
- Optocoupler isolation ensures electrical separation and noise immunity.
- All 32 inputs can generate interrupts with selectable edge triggering.

Output Operation:
- Open-collector, current-sinking type outputs.
- Drives up to 60 V DC, 100 mA per channel.
- Zener diode surge protection and PolySwitch overcurrent protection.
- Outputs reset to OFF state when PC is powered on.

Applications:
- Factory automation and process control.
- PLC and relay interface systems.
- Machine status monitoring and alarm systems.
- Data acquisition and digital control in test equipment.
- Integration with LabVIEW, Visual Basic, C/C++, or Linux-based control systems.

Compatibility:
- Windows (XP/2000/7/10 and later) via API-PAC(W32).
- Linux distributions (Red Hat, TurboLinux, etc.) via API-DIO(LNX).
- LabVIEW via VI-DAQ library.

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5. Components & Accessories

Included Items:
- PIO-32/32H(PCI)H board × 1
- First Step Guide × 1
- Driver Software Disk [API-PAC(W32)] × 1 (includes drivers and user’s guide)
- Serial Number Label × 1
- Product Registration Card & Warranty Certificate × 1

Optional Accessories:
- Relay Terminal Units:
- EPD-96 (for crimping, requires PCB96P/PCB96PS cable)
- EPD-37A / EPD-37 (for crimping, requires PCB96W/PCB96WS cable)
- Terminal Unit for Cables: DTP-64(PC)
- Converter Board: CCB-96 (96-pin half-pitch to dual 37-pin D-Sub)
- Cables:
- Shielded 96-pin half-pitch cables (PCB96PS series, 0.5–5 m)
- Flat 96-pin half-pitch cables (PCB96P series, 1.5–5 m)
- Shielded one-end cables (PCA96PS series, 0.5–5 m)
- Flat one-end cables (PCA96P series, 1.5–5 m)
- Distribution cables (PCB96W/PCB96WS series, 1.5–5 m)
- Connectors: CN5-H96F (96-pin half-pitch female connector set, 5 pcs)

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6. Installation & Setup

Requirements:
- PCI slot with +5 V supply (universal keying supports 3.3 V/5 V slots).
- External 24–48 V DC power supply for I/O circuits.
- Compatible operating system (Windows or Linux).

Installation Steps:
1. Install Software:
- Run the API-PAC(W32) installer from the included disk before inserting the board.
- Select “Digital I/O” driver and perform full installation.
2. Set Hardware:
- Configure board ID (0–Fh) using rotary switch SW1 if multiple boards are used.
- Verify jumper and switch settings (factory default is ID = 0).
3. Insert Board:
- Power off PC, insert board into PCI slot, secure with screw.
- Ensure no contact with metal terminals.
4. Driver Setup:
- Upon reboot, Windows detects new hardware.
- Specify INF file location (e.g., \INF\Win2000\DIO\PCI).
- Ignore unsigned driver warning and continue installation.
5. Initialize Software:
- Launch “API-TOOL Configuration” to detect and register the board.
- Save settings to registry.
6. Verification:
- Use the bundled “Diagnosis Program” to test input/output and interrupt functions.

Linux Setup:
- Extract and compile API-DIO(LNX) driver from CD-ROM.
- Run `make install` and execute configuration script (`./config`).
- Start driver using `./contec_dio_start.sh`.

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7. Performance & Capabilities

- Input Response Time: ≤ 200 µs.
- Output Switching Speed: Suitable for high-speed digital control.
- Interrupt Handling: 32 interrupt-capable inputs combined into one INTA signal.
- Digital Filter Timing: Adjustable from 0–20 (hex 14h) corresponding to 2ⁿ / (8 × 10⁶) s.
- Output Protection:
- Zener diode (RD68FM or equivalent) for surge suppression.
- PolySwitch resettable fuse per 8 output channels.
- Residual Voltage:
- ≤ 0.5 V at ≤ 50 mA load.
- ≤ 1.0 V at ≤ 100 mA load.
- Board Count: Up to 16 boards can be installed simultaneously.
- Signal Extension: Up to 50 m depending on cable and environment.
- Reliability: Optocoupler isolation ensures long-term stability in noisy environments.

Limitations:
- Requires external power for I/O circuits.
- Outputs reset to OFF at system startup.
- Digital filter applies globally to all inputs (not per channel).

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8. Standards & Compliance

- Electrical Safety: 500 Vrms isolation between PCI bus and I/O interface.
- Environmental Compliance: RoHS compliant (lead-free).
- EMC Compliance: CE and VCCI certified for electromagnetic compatibility.
- PCI Compliance: 32-bit, 33 MHz PCI bus, universal keying (3.3 V/5 V).
- Operating Environment:
- Temperature: 0–50 °C
- Humidity: 10–90% RH (non-condensing)
- No corrosive gases or conductive dust.

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9. Additional Information

Warranty:
- Limited three-year warranty from date of purchase.
- Covers defects in materials and workmanship.
- Excludes damage due to misuse, modification, or improper installation.
- Repairs require Return Merchandise Authorization (RMA) and proof of purchase.

Support & Maintenance:
- Technical documentation, updated drivers, and sample programs available at:
- Japanese: [https://www.contec.co.jp/](https://www.contec.co.jp/)
- English: [https://www.contec.com/](https://www.contec.com/)
- Chinese: [https://www.contec.com.cn/](https://www.contec.com.cn/)
- Free downloads: updated drivers, differential files, and LabVIEW VI-DAQ library.
- Diagnostic and configuration utilities included (API-TOOL, Diagnosis Program).
- Maintenance: keep board free from dust and static; store in anti-static packaging.

Safety & Handling Precautions:
- Do not install/remove board while PC power is on.
- Avoid exposure to flammable gases, moisture, or static electricity.
- Handle by edges; avoid touching gold-plated terminals.
- Ensure adequate power supply capacity for all installed boards.
- Follow local regulations for disposal.

Software Updates:
- API-PAC(W32) and API-DIO(LNX) regularly updated on CONTEC’s website.
- VI-DAQ for LabVIEW available as a free download.

Documentation:
- User’s Guide (PDF) included on CD-ROM.
- Contains setup, wiring, and programming instructions.

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Summary

The CONTEC PIO-32/32H(PCI)H is a robust, high-voltage, optically isolated digital I/O PCI card designed for industrial automation and control systems requiring reliable 24–48 V DC interfacing. With 32 input and 32 output channels, full interrupt support, and comprehensive software libraries for Windows, Linux, and LabVIEW, it provides a flexible platform for digital signal acquisition and control. Its isolation, surge protection, and compliance with international standards ensure dependable operation in demanding environments. The board’s modular accessories and extensive software ecosystem make it a versatile choice for engineers developing custom control, monitoring, or data acquisition solutions.