Comprehensive Product Summary – PIO‑16/16B(LPCI)H Opto‑Isolated Digital I/O Board

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### 1. Product Overview

Product Name: Opto‑Isolated 16/16‑Channel Digital Input/Output Low‑Profile PCI Card with On‑Board Power Supply
Model: PIO‑16/16B(LPCI)H
Series: PIO‑B Series (Low‑Profile PCI)
Article Number: PIO‑16/16B(LPCI)H
Manufacturer: CONTEC CO., LTD. (Japan)
Version: Ver.1.11 / Ver.1.10

The CONTEC PIO‑16/16B(LPCI)H is a PCI‑compliant digital I/O interface board designed for industrial and laboratory automation systems requiring opto‑isolated signal interfacing. It provides 16 opto‑isolated digital input channels and 16 opto‑isolated digital output channels, supporting both 12–24 V DC logic levels and TTL compatibility. The board is engineered for low‑profile PCI slots but can also be used in standard PCI slots using the supplied interchangeable bracket. It includes an internal 12 V DC, 250 mA power supply for driving optocouplers and supports external power operation as well.

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### 2. Key Features

- Opto‑Isolation: Complete galvanic isolation between the PCI bus and I/O interface using optocouplers, ensuring high noise immunity and protection against ground loops.
- Dual Power Options: Selectable internal (12 V DC, 250 mA) or external (12–24 V DC ± 10%) power supply for driving input/output circuits.
- Flexible I/O Configuration: 16 opto‑isolated inputs and 16 opto‑isolated open‑collector outputs (current sink type).
- Interrupt Capability: All 16 input channels can be configured as interrupt inputs; selectable rising or falling edge trigger.
- Digital Filtering: Built‑in digital filter to suppress noise and contact chatter; configurable filter times from 0.25 µs to 131 ms.
- Surge and Overcurrent Protection: Zener diode surge absorbers and PolySwitch resettable fuses protect outputs; each group of eight outputs has independent overcurrent protection.
- High Output Drive: Up to 35 V DC, 100 mA per channel output capability.
- Low‑Profile PCI Compliance: Supports both low‑profile and standard PCI slots (universal keying for 3.3 V/5 V signaling).
- Software Support:
- Windows driver library API‑PAC(W32) (Win32 DLL interface).
- Linux driver API‑DIO(LNX).
- LabVIEW VI library VI‑DAQ for seamless integration with NI LabVIEW.
- Diagnostic and Development Tools: Includes API‑TOOL configuration utility, sample programs, and diagnostic software for verifying board operation.
- RoHS, CE, and VCCI Certified: Meets international environmental and electromagnetic compliance standards.

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### 3. Technical Specifications

| Category | Specification |
|---------------|------------------|
| Input Section | |
| Input Format | Optocoupler‑isolated input (current sink compatible, negative logic) |
| Channels | 16 channels (all interrupt‑capable, 1 common) |
| Input Resistance | 4.7 kΩ |
| Input ON Current | ≥ 2.0 mA |
| Input OFF Current | ≤ 0.16 mA |
| Response Time | ≤ 200 µs |
| Interrupt | 16 inputs combined into one INTA output; edge‑selectable (rising/falling) |
| Output Section | |
| Output Format | Optocoupler‑isolated open‑collector output (current sink type, negative logic) |
| Channels | 16 channels (1 common) |
| Output Voltage | Up to 35 V DC |
| Output Current | Max. 100 mA per channel |
| Residual Voltage | ≤ 0.5 V @ 50 mA, ≤ 1.0 V @ 100 mA |
| Surge Protection | Zener diode (RD47FM or equivalent) |
| Overcurrent Protection | PolySwitch resettable fuse per 8‑channel group |
| Response Time | ≤ 200 µs |
| Common / Power | |
| External Circuit Power | 12–24 V DC (± 10%) |
| Built‑in Power Supply | 12 V DC 250 mA |
| Power Consumption | 5 V DC 600 mA (max, internal supply) / 150 mA (max, external supply) |
| Dielectric Strength | 1000 Vrms isolation between bus and I/O |
| Allowable Signal Cable Length | Approx. 50 m (depends on environment) |
| PCI Interface | |
| Bus Specification | PCI 33 bit, 33 MHz, universal keying (3.3 V/5 V) |
| Required Slot Power | +5 V DC (board not operable on +3.3 V‑only systems) |
| I/O Address | Any 32‑byte boundary |
| Interrupt Level | 1 level usable |
| Max. Boards per System | Up to 16 boards (including master) |
| Physical Characteristics | |
| Dimensions | 121.69 mm (L) × 63.41 mm (H) |
| Weight | Approx. 60 g |
| Operating Temperature | 0 – 50 °C |
| Operating Humidity | 10 – 90 % RH (non‑condensing) |
| Certifications | CE, VCCI, RoHS compliant |

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### 4. Functionality

Operating Principle:
The PIO‑16/16B(LPCI)H interfaces digital control signals between a host PC and external devices. Each input channel detects the ON/OFF state of external current‑driven devices (switches, sensors, transistor outputs) through optocouplers, converting them into logic levels readable by the PC. Each output channel drives external loads or logic inputs via opto‑isolated open‑collector transistors.

Use Cases and Applications:
- Industrial automation and process control
- Machine I/O monitoring and control
- Laboratory instrumentation and data acquisition
- PLC interfacing and signal conditioning
- Embedded control systems requiring galvanic isolation

Compatibility:
- Compatible with Windows (XP/2000/NT/Me/98) and Linux distributions (RedHat, TurboLinux, etc.).
- Supports programming in Visual C/C++, Visual Basic, Delphi, Builder, gcc, and Kylix.
- Integrates with National Instruments LabVIEW via VI‑DAQ library.

Digital Filter Function:
Each input channel can apply a programmable digital filter to reject transient noise. Filter times range from 0.25 µs to 131 ms (21 selectable settings). The filter ensures that only stable signals are recognized as valid inputs.

Interrupt Control:
All 16 inputs can generate interrupts. Each bit’s interrupt can be enabled/disabled individually, and the trigger edge (rising/falling) is selectable. Interrupt status bits identify which input caused the interrupt.

Data I/O Operation:
- Input: Logic “1” corresponds to ON state; “0” to OFF.
- Output: Writing “1” activates the transistor (ON), “0” deactivates (OFF).
- All outputs reset to OFF when the PC powers up.

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### 5. Components & Accessories

Included Items (Standard Package):
1. PIO‑16/16B(LPCI)H board × 1
2. First Step Guide × 1
3. Driver Software Disk (API‑PAC(W32)) × 1
4. Standard PCI bracket × 1
5. Serial number label × 1
6. Product registration card and warranty certificate × 1

Optional Cables:
- Shielded 50‑Pin Mini‑Ribbon Cables (both ends):
PCB50PS‑0.5P (0.5 m), PCB50PS‑1.5P (1.5 m), PCB50PS‑3P (3 m), PCB50PS‑5P (5 m)
- Shielded 50‑Pin Mini‑Ribbon Cable (one end):
PCA50PS‑0.5P (0.5 m), PCA50PS‑1.5P (1.5 m), PCA50PS‑3P (3 m), PCA50PS‑5P (5 m)
- Conversion Cable (50‑Pin → 37‑Pin D‑SUB):
PCE50/37PS‑0.5P (0.5 m)

Optional Accessories:
- Screw Terminal Units:
- EPD‑50A (M3, 50 points)
- EPD‑37A (M3, 37 points)
- EPD‑37 (M3.5, 37 points)
- Termination Panels:
- DTP‑3(PC) (M3)
- DTP‑4(PC)
- Signal Monitor: CM‑32(PC)E

*Note: Appropriate cables (PCB50PS‑*P or PCE50/37PS‑0.5P) are required for connection to accessories.*

Connector Type:
- On‑board connector CN1: 50‑Pin Mini‑Ribbon (3M 10250‑52A2JL)
- Mating connector: 3M 10150‑6000EL

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### 6. Installation & Setup

Hardware Installation Steps:
1. Power Off PC: Ensure system power is off before installation.
2. Bracket Selection: Replace the low‑profile bracket with the standard PCI bracket if required.
3. Set Board ID: Use rotary switch SW1 to assign a unique ID (0–Fh) when multiple boards are installed.
4. Select Power Source: Configure jumpers JP1–JP4 to choose internal or external power for input/output ports.
- JP1/JP3: Input ports (+0/+1)
- JP2/JP4: Output ports (+2/+3)
5. Insert Board: Plug into a PCI slot (supports both 3.3 V and 5 V keyed slots).
6. Secure Bracket: Fasten with screws and reassemble PC chassis.
7. Power On: Boot the PC; the OS detects the board automatically.

Software Setup:
- Install API‑PAC(W32) before hardware installation (Windows).
- Use “Found New Hardware Wizard” to register the board driver.
- Configure board parameters via API‑TOOL Configuration utility.
- Verify operation using the built‑in Diagnosis Program.

Linux Installation:
- Copy and extract `/linux/dio/cdioXXX.tgz` from the CD.
- Compile and install using `make` and `make install`.
- Configure with `./config` and start driver via `contec_dio_start.sh`.

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### 7. Performance & Capabilities

- Input/Output Speed: 200 µs maximum response time for both input and output transitions.
- Output Drive: 100 mA per channel, 35 V DC maximum.
- Noise Immunity: Opto‑isolation and digital filtering ensure reliable operation in electrically noisy environments.
- Interrupt Latency: Hardware‑level interrupt generation for real‑time event handling.
- Signal Extension: Reliable operation up to approximately 50 m cable length (depending on wiring conditions).
- Power Efficiency: Internal power mode consumes up to 600 mA from PCI +5 V; external mode reduces consumption to 150 mA.
- Reliability: PolySwitch resettable fuses prevent permanent damage from overcurrent; automatic recovery after fault removal.
- Limitations: Requires +5 V PCI slot; not compatible with +3.3 V‑only systems. Outputs reset to OFF on power‑up.

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### 8. Standards & Compliance

- Electrical Safety: Dielectric strength 1000 Vrms between PCI bus and I/O circuits.
- Environmental Compliance: RoHS compliant (lead‑free manufacturing).
- Electromagnetic Compatibility: CE and VCCI certified for EMI/EMC standards.
- PCI Compliance: Conforms to PCI Local Bus Specification (33 bit, 33 MHz, universal keying).
- Operating Environment:
- Temperature: 0 – 50 °C
- Humidity: 10 – 90 % RH (non‑condensing)
- No corrosive gases or excessive dust permitted.

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### 9. Additional Information

Warranty:
Limited three‑year warranty from date of purchase covering defects in materials and workmanship. Warranty excludes physical damage, misuse, or modification. Repairs require Return Merchandise Authorization (RMA) and proof of purchase.

Support & Maintenance:
- Technical Support: Available via CONTEC’s regional offices and online resources.
- Web Resources:
- Japanese: [http://www.contec.co.jp](http://www.contec.co.jp)
- English: [http://www.contec.com](http://www.contec.com)
- Chinese: [http://www.contec.com.cn](http://www.contec.com.cn)
- Software Updates: Free driver and library updates downloadable from CONTEC’s website.
- Documentation: Comprehensive user manual and API help files included on the installation disk.
- Maintenance: Periodic inspection recommended—check connectors for dust, corrosion, or mechanical stress. Store in anti‑static packaging when not in use.
- Disposal: Follow local electronic waste regulations for environmentally safe disposal.

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### Summary

The CONTEC PIO‑16/16B(LPCI)H is a robust, opto‑isolated digital I/O interface board optimized for industrial and laboratory automation systems requiring reliable, noise‑immune digital signal interfacing. With 16 input and 16 output channels, selectable internal/external power, and comprehensive software support across Windows, Linux, and LabVIEW environments, it provides a flexible platform for control and monitoring applications. Its low‑profile PCI form factor, universal keying, and compliance with CE, VCCI, and RoHS standards make it suitable for integration into compact industrial PCs and embedded systems. The board’s combination of hardware protection, programmable filtering, and interrupt capabilities ensures dependable performance in demanding environments.