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- Opto-Isolated Outputs:
Each of the 32 output channels is optically isolated from the PC’s internal logic circuits, preventing electrical interference and protecting the host system from voltage spikes or ground loops.
- On-Board Power Supply:
Equipped with an integrated 12VDC (240mA) power source to drive the output circuit photocouplers, eliminating the need for an external power supply for isolation circuits.
- Open Collector Output Configuration:
Current sinking type outputs capable of switching up to 35VDC at 200mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Noise Immunity:
Opto-coupler isolation ensures excellent noise resistance, making the board suitable for electrically noisy industrial environments.
- Surge and Overcurrent Protection:
Each output transistor includes built-in protection circuits (Zener diode and current limiting) to prevent damage from voltage surges or excessive current.
- Fast Response Time:
Maximum output response time of 200 microseconds, enabling rapid switching for real-time control applications.
- Compact ISA Form Factor:
Standard ISA AT bus card dimensions (163.0 mm × 122.0 mm) compatible with legacy and industrial PC systems.
- Standard 37-Pin D-Sub Connector:
Provides a robust and widely supported interface for external wiring and connection to terminal blocks or cable assemblies.
- Software Support:
Compatible with CONTEC’s API-PAC(W32) driver library for Windows and Linux, as well as LabVIEW VI-DAQ libraries for easy integration into measurement and control systems.
Each of the 32 output channels is optically isolated from the PC’s internal logic circuits, preventing electrical interference and protecting the host system from voltage spikes or ground loops.
- On-Board Power Supply:
Equipped with an integrated 12VDC (240mA) power source to drive the output circuit photocouplers, eliminating the need for an external power supply for isolation circuits.
- Open Collector Output Configuration:
Current sinking type outputs capable of switching up to 35VDC at 200mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Noise Immunity:
Opto-coupler isolation ensures excellent noise resistance, making the board suitable for electrically noisy industrial environments.
- Surge and Overcurrent Protection:
Each output transistor includes built-in protection circuits (Zener diode and current limiting) to prevent damage from voltage surges or excessive current.
- Fast Response Time:
Maximum output response time of 200 microseconds, enabling rapid switching for real-time control applications.
- Compact ISA Form Factor:
Standard ISA AT bus card dimensions (163.0 mm × 122.0 mm) compatible with legacy and industrial PC systems.
- Standard 37-Pin D-Sub Connector:
Provides a robust and widely supported interface for external wiring and connection to terminal blocks or cable assemblies.
- Software Support:
Compatible with CONTEC’s API-PAC(W32) driver library for Windows and Linux, as well as LabVIEW VI-DAQ libraries for easy integration into measurement and control systems.
Comprehensive Product Summary – Opto-Isolated 32-Channel Digital Output ISA Card with On-Board Power (PO-32B(PC)H)
### 1. Product Overview
- Product Name: Opto-Isolated 32-Channel Digital Output ISA Card with On-Board Power
- Model: PO-32B(PC)H
- Article Number: PO-32B(PC)H
- Series: Digital I/O Interface Boards – Opto-Isolated Output Series
- Manufacturer: CONTEC Co., Ltd. (Japan)
- Product Category: Industrial Automation / Measurement and Control / Digital I/O Interface Boards
- Bus Type: ISA (AT Bus)
- Product Description:
The CONTEC PO-32B(PC)H is an opto-isolated 32-channel digital output interface card designed for ISA bus systems. It integrates an on-board 12VDC power supply to drive the output circuit photocouplers, providing reliable isolation between the PC and external control circuits. The board supports open collector outputs rated up to 35VDC and 200mA per channel, with built-in surge and overcurrent protection. It is ideal for industrial automation, process control, and equipment interfacing applications requiring robust electrical isolation and stable digital output performance.
### 2. Key Features
- Opto-Isolated Outputs:
Each of the 32 output channels is optically isolated from the PC’s internal logic circuits, preventing electrical interference and protecting the host system from voltage spikes or ground loops.
- On-Board Power Supply:
Equipped with an integrated 12VDC (240mA) power source to drive the output circuit photocouplers, eliminating the need for an external power supply for isolation circuits.
- Open Collector Output Configuration:
Current sinking type outputs capable of switching up to 35VDC at 200mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Noise Immunity:
Opto-coupler isolation ensures excellent noise resistance, making the board suitable for electrically noisy industrial environments.
- Surge and Overcurrent Protection:
Each output transistor includes built-in protection circuits (Zener diode and current limiting) to prevent damage from voltage surges or excessive current.
- Fast Response Time:
Maximum output response time of 200 microseconds, enabling rapid switching for real-time control applications.
- Compact ISA Form Factor:
Standard ISA AT bus card dimensions (163.0 mm × 122.0 mm) compatible with legacy and industrial PC systems.
- Standard 37-Pin D-Sub Connector:
Provides a robust and widely supported interface for external wiring and connection to terminal blocks or cable assemblies.
- Software Support:
Compatible with CONTEC’s API-PAC(W32) driver library for Windows and Linux, as well as LabVIEW VI-DAQ libraries for easy integration into measurement and control systems.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Bus Interface | ISA AT Bus |
| Output Channels | 32 channels |
| Output Type | Opto-Isolated Open Collector (Current sinking type) |
| Output Rating | 35VDC, 200mA per channel (max) |
| Output Protection | Surge and overcurrent protection (Zener diode and current limiting) |
| Response Time (Max) | 200 µsec |
| Internal Power Supply | On-board 12VDC, 240mA |
| External Power Requirement | +5VDC from ISA bus |
| Power Consumption (Max) | 5VDC 50mA (external), 5VDC 800mA (on-board) |
| Isolation Voltage | Up to 5kV between PC and I/O circuits |
| Wiring Distance | Up to 50 meters |
| Connector Type | 37-pin D-type female (DCL-J37SAF-20L9 [JAE] or equivalent) |
| Dimensions (mm) | 163.0 (L) × 122.0 (H) |
| Weight | Approx. 200g |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -10°C to +60°C |
| Humidity | 10–90% RH (non-condensing) |
| Mounting | Internal ISA slot mounting |
| Insulation Resistance | 500MΩ or more at 500VDC |
| Dielectric Strength | 1500VAC for 1 minute between I/O and logic circuits |
### 4. Functionality
The PO-32B(PC)H functions as a digital output interface board that allows a PC to control external devices through optically isolated transistor outputs. Each output channel operates as an open collector transistor capable of sinking current from external loads. The opto-isolation barrier ensures that electrical noise or transient voltages from external equipment do not affect the PC’s internal circuitry.
Typical Use Cases:
- Industrial automation control systems
- PLC and machine interface expansion
- Process control and monitoring
- Relay and solenoid actuation
- LED or indicator control
- Data acquisition systems requiring isolated digital outputs
Compatibility:
- Compatible with ISA AT bus architecture
- Works with CONTEC’s API-PAC(W32) driver suite for Windows and Linux
- Supports LabVIEW via VI-DAQ library for graphical programming environments
- Can be integrated with CONTEC’s terminal blocks (EPD-37, EPD-37A) and cable assemblies (PCB37P, PCA37P)
### 5. Components & Accessories
Included Components:
- PO-32B(PC)H ISA card
- User manual and setup guide
- Software driver package (API-PAC(W32))
Optional Accessories:
- Cables:
- PCB37P / PCB37PS (37-pin D-Sub cable, 1.5m or 0.5m)
- PCA37P / PCA37PS (alternative cable assemblies)
- Terminal Blocks:
- EPD-37 / EPD-37A (37-pin D-Sub terminal block)
- CM-32(PC)E (screw terminal interface)
- Connector Sets:
- CN5-D37M (D-Sub male connector set)
- Mounting Accessories:
- Bracket and screws for ISA slot installation
Connector Pinout:
Standard 37-pin D-Sub female connector compatible with CONTEC’s digital I/O accessory ecosystem.
### 6. Installation & Setup
System Requirements:
- IBM PC/AT compatible computer with available ISA slot
- Operating system: Windows (API-PAC supported versions) or Linux
- +5VDC power supply from ISA bus
Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the PO-32B(PC)H card into an available ISA slot.
3. Secure the card using the bracket screw.
4. Connect the external I/O cable (e.g., PCB37P) to the 37-pin D-Sub connector.
5. Connect the cable to a terminal block or external device.
6. Power on the PC and install the driver software.
7. Configure I/O addresses and verify operation using the provided utility or API functions.
Configuration:
- I/O address can be set to any 8-byte or 16-byte boundary.
- Supports up to two interrupt lines simultaneously (IRQ 3–7, 9–12, 14, 15).
- Output logic and control can be managed via software commands through the API library.
### 7. Performance & Capabilities
- Output Drive Capability:
Each channel can sink up to 200mA at 35VDC, allowing direct control of medium-power loads such as relays or indicator lamps.
- Response Speed:
200 microseconds maximum ensures fast switching suitable for real-time control loops.
- Isolation Performance:
Optical isolation up to 5kV provides robust protection against transient voltages and ground potential differences.
- Noise Immunity:
Opto-coupler isolation and internal filtering minimize susceptibility to electrical noise, ensuring stable operation in industrial environments.
- Reliability:
Designed for continuous operation in industrial control systems with high MTBF and low maintenance requirements.
- Limitations:
- Not suitable for AC load switching.
- Requires external load power supply for driving connected devices.
- Limited to ISA bus systems (legacy interface).
### 8. Standards & Compliance
- Bus Standard: ISA AT Bus compliant
- Electrical Safety:
- Isolation voltage: 5kV (I/O to logic)
- Surge and overcurrent protection integrated
- Environmental Compliance:
- RoHS compliant (lead-free manufacturing)
- CE marking (for electromagnetic compatibility and safety)
- Software Standards:
- Windows API-PAC(W32) driver conforms to Win32 API standards
- Linux driver supports module-style device driver architecture
- LabVIEW VI-DAQ library compatible with National Instruments’ DAQ VI format
### 9. Additional Information
Warranty & Support:
- Standard manufacturer warranty (typically 1 year, extendable via CONTEC service agreements).
- Technical support available through CONTEC’s global portal (www.contec.com).
- Firmware and driver updates downloadable from the manufacturer’s website.
Maintenance:
- No periodic maintenance required beyond standard dust removal.
- Ensure proper grounding and cable strain relief to maintain isolation integrity.
- Avoid exposure to excessive humidity or corrosive environments.
Software & Development Tools:
- API-PAC(W32):
Provides a comprehensive set of DLL-based functions for Windows applications, enabling direct control of digital outputs.
- Linux Drivers:
Open-source compatible drivers with shared library support for C/C++ development.
- LabVIEW VI-DAQ:
Free downloadable VI library for integrating CONTEC boards into LabVIEW environments, simplifying data acquisition and control programming.
Documentation & Resources:
- User manual with detailed pin assignments, circuit diagrams, and sample code.
- Application notes for integrating with PLCs, sensors, and actuators.
- Online support portal with FAQs, driver downloads, and firmware updates.
Related Models:
- PO-32L(PC)H: 32-channel opto-isolated output without on-board power.
- PO-64L(PC)H: 64-channel version for higher I/O density.
- PIO-16/16B(PC)H: Combined 16 input / 16 output board with on-board power.
- PI-32B(PC)H: 32-channel opto-isolated input board with on-board power.
Typical Applications:
- Factory automation and process control
- Machine tool control and monitoring
- Test and measurement systems
- Building automation and environmental monitoring
- Embedded control in industrial PCs
### Summary
The CONTEC PO-32B(PC)H is a robust, industrial-grade opto-isolated digital output board designed for ISA bus systems. With 32 open collector outputs, integrated 12VDC power supply, and comprehensive protection features, it provides reliable and noise-immune digital control for a wide range of automation and instrumentation applications. Its compatibility with CONTEC’s software ecosystem (Windows, Linux, LabVIEW) and accessory lineup (cables, terminal blocks) ensures seamless integration into both legacy and modern control systems.
This board exemplifies CONTEC’s commitment to providing high-quality, durable, and flexible I/O solutions for industrial and laboratory environments requiring precise and isolated digital output control.
### 1. Product Overview
- Product Name: Opto-Isolated 32-Channel Digital Output ISA Card with On-Board Power
- Model: PO-32B(PC)H
- Article Number: PO-32B(PC)H
- Series: Digital I/O Interface Boards – Opto-Isolated Output Series
- Manufacturer: CONTEC Co., Ltd. (Japan)
- Product Category: Industrial Automation / Measurement and Control / Digital I/O Interface Boards
- Bus Type: ISA (AT Bus)
- Product Description:
The CONTEC PO-32B(PC)H is an opto-isolated 32-channel digital output interface card designed for ISA bus systems. It integrates an on-board 12VDC power supply to drive the output circuit photocouplers, providing reliable isolation between the PC and external control circuits. The board supports open collector outputs rated up to 35VDC and 200mA per channel, with built-in surge and overcurrent protection. It is ideal for industrial automation, process control, and equipment interfacing applications requiring robust electrical isolation and stable digital output performance.
### 2. Key Features
- Opto-Isolated Outputs:
Each of the 32 output channels is optically isolated from the PC’s internal logic circuits, preventing electrical interference and protecting the host system from voltage spikes or ground loops.
- On-Board Power Supply:
Equipped with an integrated 12VDC (240mA) power source to drive the output circuit photocouplers, eliminating the need for an external power supply for isolation circuits.
- Open Collector Output Configuration:
Current sinking type outputs capable of switching up to 35VDC at 200mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Noise Immunity:
Opto-coupler isolation ensures excellent noise resistance, making the board suitable for electrically noisy industrial environments.
- Surge and Overcurrent Protection:
Each output transistor includes built-in protection circuits (Zener diode and current limiting) to prevent damage from voltage surges or excessive current.
- Fast Response Time:
Maximum output response time of 200 microseconds, enabling rapid switching for real-time control applications.
- Compact ISA Form Factor:
Standard ISA AT bus card dimensions (163.0 mm × 122.0 mm) compatible with legacy and industrial PC systems.
- Standard 37-Pin D-Sub Connector:
Provides a robust and widely supported interface for external wiring and connection to terminal blocks or cable assemblies.
- Software Support:
Compatible with CONTEC’s API-PAC(W32) driver library for Windows and Linux, as well as LabVIEW VI-DAQ libraries for easy integration into measurement and control systems.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Bus Interface | ISA AT Bus |
| Output Channels | 32 channels |
| Output Type | Opto-Isolated Open Collector (Current sinking type) |
| Output Rating | 35VDC, 200mA per channel (max) |
| Output Protection | Surge and overcurrent protection (Zener diode and current limiting) |
| Response Time (Max) | 200 µsec |
| Internal Power Supply | On-board 12VDC, 240mA |
| External Power Requirement | +5VDC from ISA bus |
| Power Consumption (Max) | 5VDC 50mA (external), 5VDC 800mA (on-board) |
| Isolation Voltage | Up to 5kV between PC and I/O circuits |
| Wiring Distance | Up to 50 meters |
| Connector Type | 37-pin D-type female (DCL-J37SAF-20L9 [JAE] or equivalent) |
| Dimensions (mm) | 163.0 (L) × 122.0 (H) |
| Weight | Approx. 200g |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -10°C to +60°C |
| Humidity | 10–90% RH (non-condensing) |
| Mounting | Internal ISA slot mounting |
| Insulation Resistance | 500MΩ or more at 500VDC |
| Dielectric Strength | 1500VAC for 1 minute between I/O and logic circuits |
### 4. Functionality
The PO-32B(PC)H functions as a digital output interface board that allows a PC to control external devices through optically isolated transistor outputs. Each output channel operates as an open collector transistor capable of sinking current from external loads. The opto-isolation barrier ensures that electrical noise or transient voltages from external equipment do not affect the PC’s internal circuitry.
Typical Use Cases:
- Industrial automation control systems
- PLC and machine interface expansion
- Process control and monitoring
- Relay and solenoid actuation
- LED or indicator control
- Data acquisition systems requiring isolated digital outputs
Compatibility:
- Compatible with ISA AT bus architecture
- Works with CONTEC’s API-PAC(W32) driver suite for Windows and Linux
- Supports LabVIEW via VI-DAQ library for graphical programming environments
- Can be integrated with CONTEC’s terminal blocks (EPD-37, EPD-37A) and cable assemblies (PCB37P, PCA37P)
### 5. Components & Accessories
Included Components:
- PO-32B(PC)H ISA card
- User manual and setup guide
- Software driver package (API-PAC(W32))
Optional Accessories:
- Cables:
- PCB37P / PCB37PS (37-pin D-Sub cable, 1.5m or 0.5m)
- PCA37P / PCA37PS (alternative cable assemblies)
- Terminal Blocks:
- EPD-37 / EPD-37A (37-pin D-Sub terminal block)
- CM-32(PC)E (screw terminal interface)
- Connector Sets:
- CN5-D37M (D-Sub male connector set)
- Mounting Accessories:
- Bracket and screws for ISA slot installation
Connector Pinout:
Standard 37-pin D-Sub female connector compatible with CONTEC’s digital I/O accessory ecosystem.
### 6. Installation & Setup
System Requirements:
- IBM PC/AT compatible computer with available ISA slot
- Operating system: Windows (API-PAC supported versions) or Linux
- +5VDC power supply from ISA bus
Installation Steps:
1. Power off the PC and remove the cover.
2. Insert the PO-32B(PC)H card into an available ISA slot.
3. Secure the card using the bracket screw.
4. Connect the external I/O cable (e.g., PCB37P) to the 37-pin D-Sub connector.
5. Connect the cable to a terminal block or external device.
6. Power on the PC and install the driver software.
7. Configure I/O addresses and verify operation using the provided utility or API functions.
Configuration:
- I/O address can be set to any 8-byte or 16-byte boundary.
- Supports up to two interrupt lines simultaneously (IRQ 3–7, 9–12, 14, 15).
- Output logic and control can be managed via software commands through the API library.
### 7. Performance & Capabilities
- Output Drive Capability:
Each channel can sink up to 200mA at 35VDC, allowing direct control of medium-power loads such as relays or indicator lamps.
- Response Speed:
200 microseconds maximum ensures fast switching suitable for real-time control loops.
- Isolation Performance:
Optical isolation up to 5kV provides robust protection against transient voltages and ground potential differences.
- Noise Immunity:
Opto-coupler isolation and internal filtering minimize susceptibility to electrical noise, ensuring stable operation in industrial environments.
- Reliability:
Designed for continuous operation in industrial control systems with high MTBF and low maintenance requirements.
- Limitations:
- Not suitable for AC load switching.
- Requires external load power supply for driving connected devices.
- Limited to ISA bus systems (legacy interface).
### 8. Standards & Compliance
- Bus Standard: ISA AT Bus compliant
- Electrical Safety:
- Isolation voltage: 5kV (I/O to logic)
- Surge and overcurrent protection integrated
- Environmental Compliance:
- RoHS compliant (lead-free manufacturing)
- CE marking (for electromagnetic compatibility and safety)
- Software Standards:
- Windows API-PAC(W32) driver conforms to Win32 API standards
- Linux driver supports module-style device driver architecture
- LabVIEW VI-DAQ library compatible with National Instruments’ DAQ VI format
### 9. Additional Information
Warranty & Support:
- Standard manufacturer warranty (typically 1 year, extendable via CONTEC service agreements).
- Technical support available through CONTEC’s global portal (www.contec.com).
- Firmware and driver updates downloadable from the manufacturer’s website.
Maintenance:
- No periodic maintenance required beyond standard dust removal.
- Ensure proper grounding and cable strain relief to maintain isolation integrity.
- Avoid exposure to excessive humidity or corrosive environments.
Software & Development Tools:
- API-PAC(W32):
Provides a comprehensive set of DLL-based functions for Windows applications, enabling direct control of digital outputs.
- Linux Drivers:
Open-source compatible drivers with shared library support for C/C++ development.
- LabVIEW VI-DAQ:
Free downloadable VI library for integrating CONTEC boards into LabVIEW environments, simplifying data acquisition and control programming.
Documentation & Resources:
- User manual with detailed pin assignments, circuit diagrams, and sample code.
- Application notes for integrating with PLCs, sensors, and actuators.
- Online support portal with FAQs, driver downloads, and firmware updates.
Related Models:
- PO-32L(PC)H: 32-channel opto-isolated output without on-board power.
- PO-64L(PC)H: 64-channel version for higher I/O density.
- PIO-16/16B(PC)H: Combined 16 input / 16 output board with on-board power.
- PI-32B(PC)H: 32-channel opto-isolated input board with on-board power.
Typical Applications:
- Factory automation and process control
- Machine tool control and monitoring
- Test and measurement systems
- Building automation and environmental monitoring
- Embedded control in industrial PCs
### Summary
The CONTEC PO-32B(PC)H is a robust, industrial-grade opto-isolated digital output board designed for ISA bus systems. With 32 open collector outputs, integrated 12VDC power supply, and comprehensive protection features, it provides reliable and noise-immune digital control for a wide range of automation and instrumentation applications. Its compatibility with CONTEC’s software ecosystem (Windows, Linux, LabVIEW) and accessory lineup (cables, terminal blocks) ensures seamless integration into both legacy and modern control systems.
This board exemplifies CONTEC’s commitment to providing high-quality, durable, and flexible I/O solutions for industrial and laboratory environments requiring precise and isolated digital output control.
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