Comprehensive Product Summary – PIO‑16/16B(PCI)H Opto‑Isolated 16/16‑Channel Digital I/O PCI Card

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### 1. Product Overview

Product Name: Opto‑Isolated 16/16‑Channel Digital Input/Output PCI Card with On‑Board Power
Model: PIO‑16/16B(PCI)H
Series: CONTEC PCI Digital I/O Interface Series
Article Number: PIO‑16/16B(PCI)H
Manufacturer: CONTEC CO., LTD., Osaka, Japan
Version: Ver.1.14 (as of November 2018)

The CONTEC PIO‑16/16B(PCI)H is a PCI‑compliant digital I/O interface board designed for industrial and laboratory automation systems requiring reliable, optically isolated digital signal input and output. It provides 16 opto‑isolated input channels and 16 opto‑isolated output channels, each capable of handling TTL or 12–24 V DC logic levels. The board includes an internal 12 V DC power supply for driving optocouplers and supports both internal and external power configurations. It is compatible with Windows and Linux environments and includes driver libraries and LabVIEW support for rapid application development.

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### 2. Key Features

- Optical Isolation: Complete galvanic isolation between the PCI bus and I/O interface using optocouplers ensures high noise immunity and protection against ground loops.
- 16 × 16 Digital Channels: Provides 16 opto‑isolated input channels and 16 opto‑isolated open‑collector output channels.
- Flexible Power Configuration: Selectable internal (12 V DC, 240 mA) or external (12–24 V DC ± 10%) power supply for driving optocouplers.
- Interrupt Capability: All 16 input channels can be configured as interrupt request sources; selectable rising or falling edge trigger.
- Digital Filtering: Built‑in digital filter prevents false triggering due to noise or contact bounce; programmable filter time from 0.25 µs to 131 ms.
- Output Protection: Each group of eight output channels includes overcurrent protection and Zener diode surge suppression (RD47FM or equivalent).
- High Output Drive: Supports up to 35 V DC, 100 mA per channel (open‑collector sink type).
- Fast Response: Typical input/output response time within 200 µs.
- Software Support: Includes CONTEC API‑PAC(W32) driver library for Windows (API‑DIO(WDM)/API‑DIO(98/PC)), Linux driver (API‑DIO(LNX)), and LabVIEW libraries (DAQfast and VI‑DAQ).
- Multiple Board Support: Up to 16 boards can be installed in a single system, each with a unique board ID.
- Universal PCI Interface: 32‑bit, 33 MHz PCI bus with universal keying for both 3.3 V and 5 V slots.
- Compact Design: Available in two board lengths (121.69 mm or 176.41 mm) for different chassis configurations.
- Regulatory Compliance: Conforms to VCCI Class A, CE (EMC Directive Class A), and RoHS standards.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Input Type | Optocoupler‑isolated, compatible with current‑sink output (negative logic) |
| Input Channels | 16 channels (all interrupt‑capable) |
| Input Resistance | 4.7 kΩ |
| Input ON Current | ≥ 2.0 mA |
| Input OFF Current | ≤ 0.16 mA |
| Output Type | Optocoupler‑isolated open‑collector (current sink, negative logic) |
| Output Channels | 16 channels |
| Max. Output Voltage | 35 V DC |
| Max. Output Current | 100 mA per channel |
| Residual Voltage (ON) | ≤ 0.5 V @ ≤ 50 mA; ≤ 1.0 V @ ≤ 100 mA |
| Response Time | ≤ 200 µs (input/output) |
| Surge Protection | Zener diode RD47FM (NEC) or equivalent |
| Overcurrent Protection | Provided per 8‑channel output group |
| Interrupts | 16 input signals combined into single INTA output; edge‑selectable (rising/falling) |
| Digital Filter Range | 0.25 µs – 131.072 ms (programmable) |
| External Power Supply | 12–24 V DC ± 10% |
| Internal Power Supply | 12 V DC 240 mA (for optocouplers) |
| Power Consumption | 5 V DC 1200 mA (internal power) / 300 mA (external power) |
| Operating Temperature | 0 – 50 °C |
| Humidity Range | 10 – 90 % RH (non‑condensing) |
| Dielectric Strength | 500 Vrms isolation |
| Signal Cable Length | Up to ≈ 50 m (depending on environment) |
| Bus Interface | PCI 32‑bit, 33 MHz, universal keying (3.3 V/5 V) |
| Dimensions | 121.69 (L) × 105.68 (H) mm (No. 8756x) or 176.41 (L) × 105.68 (H) mm (No. 7238x) |
| Weight | Approx. 150 g |
| Standards | VCCI Class A, CE Marking (EMC Class A), RoHS Directive |

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### 4. Functionality

The PIO‑16/16B(PCI)H enables a PC to interface directly with external digital devices such as sensors, switches, relays, and actuators. Each input channel detects the ON/OFF state of external current‑driven devices, while each output channel controls external loads such as relays, LEDs, or TTL‑level inputs.

Operation Principle:
- Inputs: Current‑sink compatible; optocouplers isolate external circuits from the PCI bus. The board senses current flow (≥ 2 mA) as logic “1”.
- Outputs: Open‑collector transistors sink current from external loads; logic “1” activates the transistor (ON).
- Interrupts: Any input transition can generate an interrupt; edge selection allows HIGH‑to‑LOW or LOW‑to‑HIGH triggering.
- Digital Filtering: The board samples input signals and validates only those stable for the configured filter time, eliminating noise and contact bounce.

Typical Applications:
- Industrial automation and process control
- Machine status monitoring and relay control
- Laboratory instrumentation and data acquisition
- PLC interfacing and signal conditioning
- Test benches requiring opto‑isolated digital I/O

Compatibility:
- Windows 10/8/7/XP (32/64‑bit) via API‑DIO(WDM)
- Linux kernel modules via API‑DIO(LNX)
- National Instruments LabVIEW via DAQfast or VI‑DAQ libraries

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### 5. Components & Accessories

Included in Package:
1. PIO‑16/16B(PCI)H board
2. First Step Guide (quick start manual)
3. Driver and documentation disk [API‑PAC(W32)]
4. Warranty certificate
5. Serial number label

Optional Cables:
- Flat Cables (37‑pin D‑type connectors both ends):
PCB37P‑1.5 (1.5 m), PCB37P‑3 (3 m), PCB37P‑5 (5 m)
- Shielded Cables (37‑pin D‑type connectors both ends):
PCB37PS‑0.5P (0.5 m), PCB37PS‑1.5P (1.5 m), PCB37PS‑3P (3 m), PCB37PS‑5P (5 m)
- Single‑ended Flat Cables: PCA37P‑1.5/3/5
- Single‑ended Shielded Cables: PCA37PS‑0.5P/1.5P/3P/5P

Optional Terminal Boards and Accessories:
- EPD‑37A (M3 × 37P spring‑up screw terminal)
- EPD‑37 (M3.5 × 37P screw terminal)
- DTP‑3A (general‑purpose terminal)
- DTP‑4C (screw terminal)
- CM‑32L (signal monitor for digital I/O)

*Note: Optional cables (PCB37P or PCB37PS) are required for terminal board connection.*

Connector Type:
37‑pin D‑SUB female (JAE DCLC‑J37SAF‑20L9 or equivalent)
Thumb screw: UNC #4‑40
Compatible male connectors: DDK 17JE‑23370‑02(D8C), HIROSE FDCD‑37P, JAE DC‑37P‑N.

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### 6. Installation & Setup

System Requirements:
- PCI slot supporting +5 V supply (universal keying for 3.3 V/5 V)
- Windows or Linux operating system
- Administrator privileges for driver installation

Installation Steps:
1. Software Installation: Install API‑PAC(W32) before inserting the board.
2. Hardware Configuration:
- Set Board ID (SW1 rotary switch, 0–Fh) for multi‑board systems.
- Configure Power Source (JP1–JP4) for internal or external supply.
3. Board Insertion: Power off PC, insert board into PCI slot, secure bracket.
4. Driver Setup: Upon reboot, Windows detects new hardware; install automatically via API‑PAC(W32).
5. Verification: Use the included diagnostic utility to test I/O and interrupts.

Power Selection Jumpers (JP1–JP4):
- Internal Power: Provides +12 V DC from onboard regulator (default).
- External Power: Accepts 12–24 V DC ± 10% from external source.
*Do not connect both simultaneously.*

Board Dimensions:
- No. 8756x – 121.69 (L) × 105.68 (H) mm
- No. 7238x – 176.41 (L) × 105.68 (H) mm

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### 7. Performance & Capabilities

- Input/Output Speed: 200 µs typical response time ensures reliable real‑time control.
- Output Drive: 100 mA per channel allows direct control of relays, solenoids, or indicator lamps.
- Noise Immunity: Optical isolation and digital filtering minimize false triggers in noisy environments.
- Interrupt Handling: Single INTA line aggregates 16 interrupt sources; software‑configurable edge detection.
- Digital Filter Timing: Adjustable from 0.25 µs to 131 ms (20 steps).
- Signal Extension: Reliable operation up to ~50 m cable length depending on shielding and environment.
- Power Efficiency: 5 V DC 300 mA (external power mode) or 1200 mA (internal power mode).
- Reliability: Overcurrent and surge protection circuits safeguard outputs; automatic reset to OFF on power‑up.
- Scalability: Up to 16 boards can coexist in one system, each with unique ID and address space (32‑byte boundary).

Limitations:
- Requires +5 V PCI slot (not compatible with 3.3 V‑only systems).
- Output current limited to 100 mA per channel; external relays required for higher loads.
- Digital filter applies globally to all inputs (not per‑channel configurable).

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### 8. Standards & Compliance

- Electrical Safety: 500 Vrms dielectric strength between bus and I/O circuits.
- EMC Compliance: CE Marking (EMC Directive Class A).
- Emission Standard: VCCI Class A (for industrial environments).
- Environmental Compliance: RoHS Directive compliant (lead‑free).
- Bus Standard: PCI Local Bus Specification Rev. 2.2, 32‑bit, 33 MHz, universal keying.
- Operating Environment: 0–50 °C, 10–90 % RH (non‑condensing).
- Storage Conditions: Room temperature, dry, dust‑free, away from vibration and static discharge.

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### 9. Additional Information

Software & Development Support:
- Windows Drivers: API‑DIO(WDM) and API‑DIO(98/PC) (Win32 DLLs).
- Linux Drivers: API‑DIO(LNX) kernel modules and shared libraries.
- LabVIEW Libraries: DAQfast and VI‑DAQ (free download from CONTEC website).
- Sample Programs: Provided for Visual Basic, Visual C/C++, and gcc.
- Diagnostic Tools: GUI‑based test utility for verifying I/O, interrupts, and timing.

Maintenance & Handling:
- Avoid mechanical shock, bending, or touching edge connectors.
- Clean contacts with industrial alcohol if contaminated.
- Do not install/remove board while PC power is ON.
- Ensure adequate power supply capacity for all installed boards.

Warranty & Support:
- Warranty Period: 3 years from original purchase date.
- Coverage: Free repair for defects in materials or workmanship (excluding misuse or modification).
- Service Procedure: Obtain RMA number before returning product; include invoice copy.
- Exclusions: Physical damage, misuse, or unauthorized modification.
- Support Resources:
- Website: [https://www.contec.com](https://www.contec.com)
- Downloads: Drivers, manuals, sample code, and updates.
- Documentation: Comprehensive PDF manuals and API references.

Safety & Environmental Notes:
- Do not use in environments with flammable or corrosive gases.
- Ensure proper grounding and shielding for long‑distance wiring.
- Dispose of the product according to local electronic waste regulations.

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### Summary

The CONTEC PIO‑16/16B(PCI)H is a robust, opto‑isolated digital I/O PCI interface board engineered for industrial automation, control, and data acquisition applications. With 16 input and 16 output channels, full interrupt capability, programmable digital filtering, and flexible power options, it provides a reliable bridge between PC‑based control systems and external digital devices. Its universal PCI interface, comprehensive driver support for Windows, Linux, and LabVIEW, and compliance with international EMC and RoHS standards make it a versatile and dependable solution for system integrators and developers requiring high‑integrity digital I/O in demanding environments.