Comprehensive Product Summary – CONTEC PO‑32B(PCI)H Opto‑Isolated 32‑Channel Digital Output PCI Card (Ver.1.12)

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### 1. Product Overview

Product Name: Opto‑Isolated 32‑Channel Digital Output PCI Card with On‑Board Power Supply
Model: PO‑32B(PCI)H
Series: PCI Digital I/O Interface Boards (Opto‑Isolated Type)
Article Number: PO‑32B(PCI)H
Manufacturer: CONTEC CO., LTD. (Japan)
Version: 1.12
Product Category: PCI Bus Digital Output Interface Board

The CONTEC PO‑32B(PCI)H is a high‑performance, opto‑isolated digital output interface board designed for PCI bus systems. It provides 32 independent output channels with robust electrical isolation between the PC and external devices. The board integrates an internal 12 VDC, 240 mA power supply for driving optocouplers, while also supporting external 12–24 VDC power sources. It is engineered for industrial automation, control, and data acquisition applications requiring reliable digital signal output with noise immunity and surge protection.

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### 2. Key Features

- 32 Opto‑Isolated Digital Output Channels:
Provides 32 independent output lines, grouped in four 8‑channel ports (Output Port 0–3). Each group of 16 channels shares a common power supply line, allowing flexible power domain configuration.

- Optocoupler Isolation:
Complete electrical isolation between the PCI bus and output interface ensures high noise immunity and protection against ground potential differences.

- Internal or External Power Supply Selection:
The board includes an internal 12 VDC, 240 mA power source for driving optocouplers. Users can alternatively select an external 12–24 VDC (±10%) supply via onboard jumpers (JP1–JP4).

- High Output Capability:
Each channel supports up to 35 VDC output voltage and 100 mA current (maximum per channel). The output format is open‑collector (current sink type, negative logic).

- Surge and Overcurrent Protection:
Each output transistor is protected by a Zener diode (RD47FM or equivalent) against surge voltages. Overcurrent protection circuits are provided for every eight output channels.

- Fast Response Time:
Typical output response time is within 200 µs, suitable for real‑time control and automation tasks.

- Software Support:
Bundled with CONTEC’s API‑PAC(W32) driver library, supporting Windows (API‑DIO(WDM)/API‑DIO(98/PC)) and Linux (API‑DIO(LNX)). Includes sample programs for Visual Basic, Visual C/C++, and gcc.
Compatible with LabVIEW through DAQfast and VI‑DAQ libraries (available free from CONTEC’s website).

- PCI Bus Compliance:
Fully compliant with 32‑bit, 33 MHz PCI bus specifications. Supports universal key shapes for both 3.3 V and 5 V PCI slots.

- Compact and Lightweight:
Board dimensions: 176.41 mm (L) × 105.68 mm (H); weight: approximately 150 g.

- Regulatory Compliance:
Certified to VCCI Class A, CE Marking (EMC Directive Class A), and RoHS Directive standards.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Output Format | Opto‑isolated open‑collector output (current sink type, negative logic) |
| Number of Channels | 32 channels (one common power supply per 16 channels) |
| Output Voltage (Max.) | 35 VDC |
| Output Current (Max.) | 100 mA per channel |
| Residual Voltage (Output ON) | ≤ 0.5 V (@ ≤ 50 mA), ≤ 1.0 V (@ ≤ 100 mA) |
| Response Time | ≤ 200 µs |
| Surge Protection | Zener diode RD47FM (NEC) or equivalent |
| Overcurrent Protection | Provided per 8 channels |
| Isolation Method | Optocoupler isolation between PCI bus and output interface |
| External Circuit Power Supply | 12–24 VDC (±10%) |
| Internal Power Supply | 12 VDC 240 mA (on‑board) |
| Power Consumption | 5 VDC 1200 mA (max., internal power) / 5 VDC 300 mA (max., external power) |
| Operating Temperature | 0 – 50 °C |
| Operating Humidity | 10 – 90 % RH (non‑condensing) |
| Allowable Signal Cable Length | Approx. 50 m (depending on wiring environment) |
| Bus Interface | PCI 32‑bit, 33 MHz, universal key (3.3 V and 5 V slots supported) |
| I/O Address | Any 32‑byte boundary |
| Interrupt Level | Not used |
| Maximum Boards per System | Up to 16 boards (including master) |
| Dielectric Strength | 500 Vrms |
| Dimensions | 176.41 mm (L) × 105.68 mm (H) |
| Weight | Approx. 150 g |
| Standards | VCCI Class A, CE Marking (EMC Directive Class A), RoHS Directive |

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### 4. Functionality

Operating Principle:
The PO‑32B(PCI)H outputs digital control signals from a host PC to external devices such as relays, LEDs, or TTL‑level inputs. Each output channel uses an optocoupler and transistor stage to provide isolated, current‑sink type outputs. The board can drive loads directly or interface with external logic circuits.

Use Cases and Applications:
- Industrial automation and process control
- PLC and relay control systems
- Machine I/O expansion for PCs
- Signal output to actuators, solenoids, or indicator lamps
- TTL‑level signal generation for test and measurement systems
- Integration with LabVIEW or custom Windows/Linux control software

Compatibility:
- PCI bus (32‑bit, 33 MHz) systems supporting +5 V supply
- Windows OS (through API‑DIO(WDM)/API‑PAC(W32))
- Linux OS (through API‑DIO(LNX))
- LabVIEW DAQfast and VI‑DAQ libraries

Output Logic:
Negative logic (data “0” = High level, data “1” = Low level).
When “1” is output, the transistor turns ON and current flows through the load; when “0” is output, the transistor turns OFF.

Isolation and Protection:
Each output channel is optically isolated from the PCI bus, ensuring that electrical noise or surges on external circuits do not affect the host PC. Zener diodes and overcurrent protection circuits enhance reliability in industrial environments.

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### 5. Components & Accessories

Included Items (Packing List):
1. PO‑32B(PCI)H Board × 1
2. First Step Guide × 1
3. Driver Library Disk (API‑PAC(W32)) × 1 (includes drivers and User’s Guide)
4. Warranty Certificate × 1
5. Serial Number Label × 1

Optional Cables:
- Flat Cables (37‑Pin D‑Type Connectors on Both Ends):
PCB37P‑1.5 (1.5 m), PCB37P‑3 (3 m), PCB37P‑5 (5 m)
- Shielded Cables (37‑Pin D‑Type Connectors on Both Ends):
PCB37PS‑0.5P (0.5 m), PCB37PS‑1.5P (1.5 m), PCB37PS‑3P (3 m), PCB37PS‑5P (5 m)
- Flat Cables (One 37‑Pin Connector):
PCA37P‑1.5 (1.5 m), PCA37P‑3 (3 m), PCA37P‑5 (5 m)
- Shielded Cables (One 37‑Pin Connector):
PCA37PS‑0.5P (0.5 m), PCA37PS‑1.5P (1.5 m), PCA37PS‑3P (3 m), PCA37PS‑5P (5 m)

Optional Terminal Boards and Accessories:
- Screw Terminal (M3 × 37P): EPD‑37A (“spring‑up” type)
- Screw Terminal (M3.5 × 37P): EPD‑37
- General Purpose Terminal: DTP‑3A
- Termination Panel: DTP‑4C
- Signal Monitor for Digital I/O: CM‑32L

(*Note: A PCB37P or PCB37PS cable is required for connection to these accessories.*)

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

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### 6. Installation & Setup

System Requirements:
- PCI bus slot (32‑bit, 33 MHz, +5 V supply)
- Windows or Linux operating system with CONTEC drivers installed
- Sufficient power capacity from PC power supply

Installation Steps:
1. Software Installation:
Install API‑PAC(W32) driver library before hardware installation.
Choose API‑DIO(WDM) for modern Windows systems or API‑DIO(98/PC) for legacy systems.
Linux users install API‑DIO(LNX) from the bundled disk or CONTEC website.

2. Hardware Configuration:
- Set Board ID (SW1) from 0 to F for multi‑board systems (up to 16 boards).
- Configure jumpers JP1–JP4 to select internal or external power supply.
- Verify factory defaults (Board ID = 0, internal power enabled).

3. Board Installation:
- Power off the PC and insert the board into an available PCI slot.
- Secure the bracket with a screw and reassemble the PC chassis.
- Power on the PC and allow the OS to detect the new hardware.

4. Driver Initialization:
- Use Device Manager to verify installation under “CONTEC Devices.”
- Assign a unique device name if multiple boards are installed.

5. Operation Check:
- Run the diagnostic utility included with API‑PAC(W32) to verify I/O operation.
- Confirm that output channels respond correctly to software commands.

Caution:
Do not insert or remove the board while the PC is powered on. Ensure adequate power supply capacity for all installed boards.

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### 7. Performance & Capabilities

- Output Speed: Response time ≤ 200 µs per channel.
- Output Capacity: Up to 100 mA per channel at 35 VDC (max).
- Power Efficiency: Internal power supply 12 VDC 240 mA supports up to 200 mA output current to external loads.
- Noise Immunity: Optocoupler isolation and Zener protection ensure stable operation in electrically noisy environments.
- Scalability: Supports up to 16 boards in a single system (512 output channels total).
- Reliability: Overcurrent protection per 8 channels prevents damage from short circuits or load faults.
- Limitations: No interrupt function (suitable for output operations only). Requires +5 V PCI bus power (not compatible with 3.3 V‑only systems).

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### 8. Standards & Compliance

- Electrical Safety: Dielectric strength 500 Vrms between bus and I/O circuits.
- EMC Compliance: VCCI Class A, CE Marking (EMC Directive Class A).
- Environmental Compliance: RoHS Directive compliant (lead‑free construction).
- PCI Bus Standard: 32‑bit, 33 MHz PCI Specification Rev. 2.2 compatible.
- Operating Environment: 0–50 °C, 10–90 % RH (non‑condensing).

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### 9. Additional Information

Warranty:
Limited three‑year warranty against defects in materials and workmanship from the date of purchase. Covers electronic circuitry only; damage from misuse or modification is excluded.

Support & Service:
- Technical support and driver updates available at [https://www.contec.com](https://www.contec.com)
- Free downloads of updated drivers, sample programs, and LabVIEW libraries.
- Return Merchandise Authorization (RMA) required for repairs or replacements.

Maintenance:
- Periodically inspect connectors and clean edge contacts with industrial alcohol.
- Store in anti‑static packaging away from moisture and direct sunlight.
- Dispose of according to local electronic waste regulations.

Software Updates:
API‑PAC(W32) and API‑DIO libraries are periodically updated to support new operating systems and enhanced functions. Users should check the CONTEC website for the latest versions.

Differences from Previous Model (PO‑32B(PCI)):
- Added surge protection (Zener diodes) on outputs.
- Slightly reduced board height (105.68 mm vs. 106.68 mm).
- Improved noise immunity and reliability.

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### Summary

The CONTEC PO‑32B(PCI)H is a robust, opto‑isolated 32‑channel digital output PCI card engineered for industrial and laboratory automation. It combines high‑voltage/current output capability, electrical isolation, and flexible power options in a compact PCI form factor. With comprehensive driver support for Windows, Linux, and LabVIEW, it enables seamless integration into custom control systems and data acquisition frameworks. Surge and overcurrent protection, universal PCI compatibility, and compliance with international EMC and RoHS standards make it a dependable choice for demanding digital output applications.