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- 32 Opto‑Isolated Output Channels: Each channel is individually isolated via high‑quality opto‑couplers to prevent electrical interference and ground loops.
- Negative Common Configuration: Designed as a current‑sourcing (open‑collector) output type where loads are connected between the output terminal and the negative common of the external power supply.
- High Output Capacity: Supports up to 35 V DC and 150 mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Isolation Voltage: Isolation withstands up to 1 kVrms between the PC logic and external circuits, ensuring safety and noise immunity.
- Opto‑Coupler Isolation: Protects the host PC from voltage surges, transient spikes, and ground potential differences.
- Compact Form Factor: Standard PC‑Bus card size (approx. 160 × 122 mm) for easy integration into industrial PCs.
- Standard 37‑Pin D‑SUB Connector: Provides a reliable and widely supported interface for external wiring.
- Software Support: Compatible with CONTEC’s API‑TOOL driver suite for Windows® and Linux®, and VI‑DAQ library for LabVIEW®.
- Industrial‑Grade Reliability: Designed for continuous operation in factory automation, process control, and test systems.
- Flexible Integration: Can be combined with CONTEC terminal blocks, cables, and accessories for simplified wiring and maintenance.
- Negative Common Configuration: Designed as a current‑sourcing (open‑collector) output type where loads are connected between the output terminal and the negative common of the external power supply.
- High Output Capacity: Supports up to 35 V DC and 150 mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Isolation Voltage: Isolation withstands up to 1 kVrms between the PC logic and external circuits, ensuring safety and noise immunity.
- Opto‑Coupler Isolation: Protects the host PC from voltage surges, transient spikes, and ground potential differences.
- Compact Form Factor: Standard PC‑Bus card size (approx. 160 × 122 mm) for easy integration into industrial PCs.
- Standard 37‑Pin D‑SUB Connector: Provides a reliable and widely supported interface for external wiring.
- Software Support: Compatible with CONTEC’s API‑TOOL driver suite for Windows® and Linux®, and VI‑DAQ library for LabVIEW®.
- Industrial‑Grade Reliability: Designed for continuous operation in factory automation, process control, and test systems.
- Flexible Integration: Can be combined with CONTEC terminal blocks, cables, and accessories for simplified wiring and maintenance.
Comprehensive Product Summary – PO‑32RL(PC) Opto‑Isolated 32‑Channel Digital Output Card (Negative Common)
### 1. Product Overview
Product Name: Opto‑Isolated 32‑Channel Digital Output Card (Negative Common)
Model: PO‑32RL(PC)
Article Number: PO‑32RL(PC)
Series: CONTEC 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
Bus Type: PC‑Bus (ISA/AT‑compatible)
Product Type: Opto‑Isolated Digital Output Interface Card
Connector Type: 37‑pin D‑SUB (female)
Dimensions: 160 mm × 122 mm (approx.)
Manufacturer Website: [www.contec.com](https://www.contec.com)
The CONTEC PO‑32RL(PC) is a 32‑channel opto‑isolated digital output interface card designed for PC‑based industrial control systems. It provides electrically isolated open‑collector outputs with negative‑common configuration, ensuring reliable signal separation between the PC logic and external control circuits. The board is engineered for robust operation in noisy industrial environments and supports external load driving up to 35 V DC and 150 mA per channel.
### 2. Key Features
- 32 Opto‑Isolated Output Channels: Each channel is individually isolated via high‑quality opto‑couplers to prevent electrical interference and ground loops.
- Negative Common Configuration: Designed as a current‑sourcing (open‑collector) output type where loads are connected between the output terminal and the negative common of the external power supply.
- High Output Capacity: Supports up to 35 V DC and 150 mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Isolation Voltage: Isolation withstands up to 1 kVrms between the PC logic and external circuits, ensuring safety and noise immunity.
- Opto‑Coupler Isolation: Protects the host PC from voltage surges, transient spikes, and ground potential differences.
- Compact Form Factor: Standard PC‑Bus card size (approx. 160 × 122 mm) for easy integration into industrial PCs.
- Standard 37‑Pin D‑SUB Connector: Provides a reliable and widely supported interface for external wiring.
- Software Support: Compatible with CONTEC’s API‑TOOL driver suite for Windows® and Linux®, and VI‑DAQ library for LabVIEW®.
- Industrial‑Grade Reliability: Designed for continuous operation in factory automation, process control, and test systems.
- Flexible Integration: Can be combined with CONTEC terminal blocks, cables, and accessories for simplified wiring and maintenance.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Model | PO‑32RL(PC) |
| Bus Interface | PC‑Bus (ISA/AT compatible) |
| Output Channels | 32 opto‑isolated digital outputs |
| Output Type | Open‑collector, current‑sourcing (negative common) |
| Output Voltage Range | 5 – 35 V DC (max.) |
| Output Current Capacity | 150 mA per channel (max.) |
| Isolation Voltage | 1 kVrms (between PC and external circuits) |
| Response Time | ≤ 200 µs typical |
| Common Configuration | Negative common (current source type) |
| External Power Supply | 12 – 24 V DC typical (user‑supplied) |
| Connector Type | 37‑pin D‑SUB female (DCL‑J37SAF‑20L9 or equivalent) |
| Dimensions (W × H) | 160 mm × 122 mm |
| Weight | Approx. 200 g |
| Power Consumption | +5 V DC ± 5 %, 250 mA (from PC bus) |
| Operating Temperature | 0 – 50 °C |
| Storage Temperature | –10 – 60 °C |
| Humidity | 10 – 90 % RH (non‑condensing) |
| Insulation Resistance | ≥ 100 MΩ at 500 V DC |
| Dielectric Strength | 1 kVrms for 1 minute between I/O and logic |
| Mounting | Internal PC expansion slot |
| PCB Size Standard | Full‑height PC card (approx. 6.3 in × 4.8 in) |
### 4. Functionality
The PO‑32RL(PC) functions as a digital output interface board that allows a PC to control external devices through optically isolated transistor outputs. Each output channel acts as a current source (negative logic), meaning that the load is connected between the output terminal and the negative common of the external power supply. When a logic “1” is written to the output register, the corresponding transistor conducts, sourcing current to the load.
Typical Use Cases:
- Driving indicator lamps, LEDs, or relays in automation systems
- Controlling solenoid valves, contactors, or DC actuators
- Interfacing with PLC input modules or external logic circuits
- Signal output for test benches, production lines, or monitoring systems
Compatibility:
- Compatible with standard PC/AT‑type computers equipped with ISA expansion slots.
- Works with CONTEC’s API‑TOOL driver suite for Windows and Linux.
- Supported by LabVIEW® through the VI‑DAQ library.
- Can be used with CONTEC terminal blocks (e.g., EPD‑37A, EPD‑37) and shielded cables (e.g., PCB37P, PCB37PS).
### 5. Components & Accessories
Included Items:
- PO‑32RL(PC) main board
- User manual and setup guide
- Driver software (downloadable from CONTEC website)
Optional Accessories:
- Cables:
- PCB37P / PCB37PS (37‑pin D‑SUB cable, 1.5 m or 3 m)
- PCA37P / PCA37PS (alternative cable sets)
- Terminal Blocks:
- EPD‑37A, EPD‑37 (screw‑type terminal blocks for 37‑pin D‑SUB)
- CM‑32(PC)E (DIN‑rail mount terminal block)
- Connector Sets:
- CN5‑D37M (male D‑SUB connector kit)
- Mounting Accessories:
- Brackets and screws for PC chassis installation
These accessories simplify wiring between the board and external devices, ensuring secure and maintainable connections in industrial environments.
### 6. Installation & Setup
System Requirements:
- PC/AT‑compatible computer with available ISA expansion slot
- +5 V DC power supply from PC bus
- External DC power supply (12 – 24 V DC) for load driving
Installation Procedure:
1. Power off the PC and disconnect it from the mains.
2. Insert the PO‑32RL(PC) card into an available ISA slot.
3. Secure the bracket to the chassis.
4. Connect the external wiring via the 37‑pin D‑SUB connector.
5. Connect the external power supply (negative common configuration).
6. Install the appropriate driver software (API‑TOOL for Windows/Linux).
7. Configure I/O addresses and verify operation using the provided utility.
Configuration:
- I/O address can be assigned to any 32‑byte boundary.
- Output logic and channel mapping are controlled via software.
- No external jumpers required for standard operation.
Mounting Options:
- Standard internal PC mounting (full‑height bracket).
- Compatible with industrial PC chassis and rackmount systems.
### 7. Performance & Capabilities
- Output Drive Capability: Each channel can source up to 150 mA at 35 V DC, allowing direct control of medium‑power loads.
- Response Time: Typical switching time ≤ 200 µs, suitable for most automation and control applications.
- Isolation Performance: 1 kVrms isolation between PC logic and external circuits ensures robust noise immunity.
- Wiring Distance: Up to 50 m between the board and external devices (depending on cable type and environment).
- Reliability: Opto‑coupler isolation prevents damage from transient surges and ground potential differences.
- Protection: Built‑in surge suppression and overcurrent protection circuits safeguard both the board and connected devices.
- Limitations:
- Designed for DC loads only (no AC output capability).
- Requires external power supply for load driving.
- Not intended for high‑frequency PWM or analog control applications.
### 8. Standards & Compliance
- Bus Standard: PC‑Bus (ISA/AT) compliant
- Electrical Safety: Isolation withstands 1 kVrms between logic and I/O
- EMC Compliance: Designed to meet industrial noise immunity standards
- RoHS Compliance: Conforms to EU RoHS Directive for hazardous substance restriction
- CE Marking: Available on request for European market models
- Environmental Standards: Designed for industrial temperature and humidity ranges
- Software Standards:
- Windows® API‑TOOL driver (Win32 API compatible)
- Linux® API‑TOOL driver (module‑style device driver)
- LabVIEW® VI‑DAQ library (compatible with NI Data Acquisition VIs)
### 9. Additional Information
Warranty:
- Standard 1‑year manufacturer warranty covering defects in materials and workmanship.
- Extended warranty and maintenance contracts available through CONTEC distributors.
Technical Support:
- Comprehensive documentation and driver downloads available at [www.contec.com](https://www.contec.com).
- Free technical support via email and online knowledge base.
- Sample programs and API references provided for rapid development.
Maintenance:
- No periodic calibration required.
- Recommended to inspect connectors and cables periodically for secure contact.
- Keep board free from dust and moisture; use in clean, dry environments.
Software Updates:
- API‑TOOL drivers and VI‑DAQ libraries are updated regularly to support new OS versions.
- Backward compatibility maintained for legacy systems.
Service & Integration:
- Compatible with CONTEC’s full range of digital I/O, analog I/O, and communication boards.
- Can be integrated into distributed monitoring and control networks (F&eIT systems).
- Supported by CONTEC’s industrial PCs, panel PCs, and box PCs for turnkey automation solutions.
### Summary
The CONTEC PO‑32RL(PC) is a robust, opto‑isolated 32‑channel digital output card designed for PC‑based industrial control applications requiring electrical isolation and reliable DC load driving. Its negative‑common open‑collector outputs provide flexible interfacing with external devices operating up to 35 V DC and 150 mA per channel, while 1 kVrms isolation ensures protection against electrical noise and surges. The board’s 37‑pin D‑SUB connector, compact 160 × 122 mm form factor, and comprehensive software support make it ideal for integration into automation, monitoring, and test systems.
With API‑TOOL drivers for Windows and Linux, and LabVIEW VI‑DAQ compatibility, the PO‑32RL(PC) offers developers a straightforward path to implement reliable digital output control in industrial PCs. Its rugged design, surge protection, and opto‑coupler isolation make it a dependable choice for demanding environments where signal integrity and system safety are paramount.
Keywords for Technical Search:
PO‑32RL(PC), CONTEC, opto‑isolated digital output card, 32‑channel output board, negative common, open collector, 35 V 150 mA, 1 kVrms isolation, 37‑pin D‑SUB, PC‑Bus ISA, industrial automation, digital I/O interface, API‑TOOL driver, LabVIEW VI‑DAQ, surge protection, opto‑coupler isolation, CONTEC digital I/O series.
### 1. Product Overview
Product Name: Opto‑Isolated 32‑Channel Digital Output Card (Negative Common)
Model: PO‑32RL(PC)
Article Number: PO‑32RL(PC)
Series: CONTEC 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
Bus Type: PC‑Bus (ISA/AT‑compatible)
Product Type: Opto‑Isolated Digital Output Interface Card
Connector Type: 37‑pin D‑SUB (female)
Dimensions: 160 mm × 122 mm (approx.)
Manufacturer Website: [www.contec.com](https://www.contec.com)
The CONTEC PO‑32RL(PC) is a 32‑channel opto‑isolated digital output interface card designed for PC‑based industrial control systems. It provides electrically isolated open‑collector outputs with negative‑common configuration, ensuring reliable signal separation between the PC logic and external control circuits. The board is engineered for robust operation in noisy industrial environments and supports external load driving up to 35 V DC and 150 mA per channel.
### 2. Key Features
- 32 Opto‑Isolated Output Channels: Each channel is individually isolated via high‑quality opto‑couplers to prevent electrical interference and ground loops.
- Negative Common Configuration: Designed as a current‑sourcing (open‑collector) output type where loads are connected between the output terminal and the negative common of the external power supply.
- High Output Capacity: Supports up to 35 V DC and 150 mA per channel, suitable for driving relays, lamps, solenoids, and other DC loads.
- High Isolation Voltage: Isolation withstands up to 1 kVrms between the PC logic and external circuits, ensuring safety and noise immunity.
- Opto‑Coupler Isolation: Protects the host PC from voltage surges, transient spikes, and ground potential differences.
- Compact Form Factor: Standard PC‑Bus card size (approx. 160 × 122 mm) for easy integration into industrial PCs.
- Standard 37‑Pin D‑SUB Connector: Provides a reliable and widely supported interface for external wiring.
- Software Support: Compatible with CONTEC’s API‑TOOL driver suite for Windows® and Linux®, and VI‑DAQ library for LabVIEW®.
- Industrial‑Grade Reliability: Designed for continuous operation in factory automation, process control, and test systems.
- Flexible Integration: Can be combined with CONTEC terminal blocks, cables, and accessories for simplified wiring and maintenance.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Model | PO‑32RL(PC) |
| Bus Interface | PC‑Bus (ISA/AT compatible) |
| Output Channels | 32 opto‑isolated digital outputs |
| Output Type | Open‑collector, current‑sourcing (negative common) |
| Output Voltage Range | 5 – 35 V DC (max.) |
| Output Current Capacity | 150 mA per channel (max.) |
| Isolation Voltage | 1 kVrms (between PC and external circuits) |
| Response Time | ≤ 200 µs typical |
| Common Configuration | Negative common (current source type) |
| External Power Supply | 12 – 24 V DC typical (user‑supplied) |
| Connector Type | 37‑pin D‑SUB female (DCL‑J37SAF‑20L9 or equivalent) |
| Dimensions (W × H) | 160 mm × 122 mm |
| Weight | Approx. 200 g |
| Power Consumption | +5 V DC ± 5 %, 250 mA (from PC bus) |
| Operating Temperature | 0 – 50 °C |
| Storage Temperature | –10 – 60 °C |
| Humidity | 10 – 90 % RH (non‑condensing) |
| Insulation Resistance | ≥ 100 MΩ at 500 V DC |
| Dielectric Strength | 1 kVrms for 1 minute between I/O and logic |
| Mounting | Internal PC expansion slot |
| PCB Size Standard | Full‑height PC card (approx. 6.3 in × 4.8 in) |
### 4. Functionality
The PO‑32RL(PC) functions as a digital output interface board that allows a PC to control external devices through optically isolated transistor outputs. Each output channel acts as a current source (negative logic), meaning that the load is connected between the output terminal and the negative common of the external power supply. When a logic “1” is written to the output register, the corresponding transistor conducts, sourcing current to the load.
Typical Use Cases:
- Driving indicator lamps, LEDs, or relays in automation systems
- Controlling solenoid valves, contactors, or DC actuators
- Interfacing with PLC input modules or external logic circuits
- Signal output for test benches, production lines, or monitoring systems
Compatibility:
- Compatible with standard PC/AT‑type computers equipped with ISA expansion slots.
- Works with CONTEC’s API‑TOOL driver suite for Windows and Linux.
- Supported by LabVIEW® through the VI‑DAQ library.
- Can be used with CONTEC terminal blocks (e.g., EPD‑37A, EPD‑37) and shielded cables (e.g., PCB37P, PCB37PS).
### 5. Components & Accessories
Included Items:
- PO‑32RL(PC) main board
- User manual and setup guide
- Driver software (downloadable from CONTEC website)
Optional Accessories:
- Cables:
- PCB37P / PCB37PS (37‑pin D‑SUB cable, 1.5 m or 3 m)
- PCA37P / PCA37PS (alternative cable sets)
- Terminal Blocks:
- EPD‑37A, EPD‑37 (screw‑type terminal blocks for 37‑pin D‑SUB)
- CM‑32(PC)E (DIN‑rail mount terminal block)
- Connector Sets:
- CN5‑D37M (male D‑SUB connector kit)
- Mounting Accessories:
- Brackets and screws for PC chassis installation
These accessories simplify wiring between the board and external devices, ensuring secure and maintainable connections in industrial environments.
### 6. Installation & Setup
System Requirements:
- PC/AT‑compatible computer with available ISA expansion slot
- +5 V DC power supply from PC bus
- External DC power supply (12 – 24 V DC) for load driving
Installation Procedure:
1. Power off the PC and disconnect it from the mains.
2. Insert the PO‑32RL(PC) card into an available ISA slot.
3. Secure the bracket to the chassis.
4. Connect the external wiring via the 37‑pin D‑SUB connector.
5. Connect the external power supply (negative common configuration).
6. Install the appropriate driver software (API‑TOOL for Windows/Linux).
7. Configure I/O addresses and verify operation using the provided utility.
Configuration:
- I/O address can be assigned to any 32‑byte boundary.
- Output logic and channel mapping are controlled via software.
- No external jumpers required for standard operation.
Mounting Options:
- Standard internal PC mounting (full‑height bracket).
- Compatible with industrial PC chassis and rackmount systems.
### 7. Performance & Capabilities
- Output Drive Capability: Each channel can source up to 150 mA at 35 V DC, allowing direct control of medium‑power loads.
- Response Time: Typical switching time ≤ 200 µs, suitable for most automation and control applications.
- Isolation Performance: 1 kVrms isolation between PC logic and external circuits ensures robust noise immunity.
- Wiring Distance: Up to 50 m between the board and external devices (depending on cable type and environment).
- Reliability: Opto‑coupler isolation prevents damage from transient surges and ground potential differences.
- Protection: Built‑in surge suppression and overcurrent protection circuits safeguard both the board and connected devices.
- Limitations:
- Designed for DC loads only (no AC output capability).
- Requires external power supply for load driving.
- Not intended for high‑frequency PWM or analog control applications.
### 8. Standards & Compliance
- Bus Standard: PC‑Bus (ISA/AT) compliant
- Electrical Safety: Isolation withstands 1 kVrms between logic and I/O
- EMC Compliance: Designed to meet industrial noise immunity standards
- RoHS Compliance: Conforms to EU RoHS Directive for hazardous substance restriction
- CE Marking: Available on request for European market models
- Environmental Standards: Designed for industrial temperature and humidity ranges
- Software Standards:
- Windows® API‑TOOL driver (Win32 API compatible)
- Linux® API‑TOOL driver (module‑style device driver)
- LabVIEW® VI‑DAQ library (compatible with NI Data Acquisition VIs)
### 9. Additional Information
Warranty:
- Standard 1‑year manufacturer warranty covering defects in materials and workmanship.
- Extended warranty and maintenance contracts available through CONTEC distributors.
Technical Support:
- Comprehensive documentation and driver downloads available at [www.contec.com](https://www.contec.com).
- Free technical support via email and online knowledge base.
- Sample programs and API references provided for rapid development.
Maintenance:
- No periodic calibration required.
- Recommended to inspect connectors and cables periodically for secure contact.
- Keep board free from dust and moisture; use in clean, dry environments.
Software Updates:
- API‑TOOL drivers and VI‑DAQ libraries are updated regularly to support new OS versions.
- Backward compatibility maintained for legacy systems.
Service & Integration:
- Compatible with CONTEC’s full range of digital I/O, analog I/O, and communication boards.
- Can be integrated into distributed monitoring and control networks (F&eIT systems).
- Supported by CONTEC’s industrial PCs, panel PCs, and box PCs for turnkey automation solutions.
### Summary
The CONTEC PO‑32RL(PC) is a robust, opto‑isolated 32‑channel digital output card designed for PC‑based industrial control applications requiring electrical isolation and reliable DC load driving. Its negative‑common open‑collector outputs provide flexible interfacing with external devices operating up to 35 V DC and 150 mA per channel, while 1 kVrms isolation ensures protection against electrical noise and surges. The board’s 37‑pin D‑SUB connector, compact 160 × 122 mm form factor, and comprehensive software support make it ideal for integration into automation, monitoring, and test systems.
With API‑TOOL drivers for Windows and Linux, and LabVIEW VI‑DAQ compatibility, the PO‑32RL(PC) offers developers a straightforward path to implement reliable digital output control in industrial PCs. Its rugged design, surge protection, and opto‑coupler isolation make it a dependable choice for demanding environments where signal integrity and system safety are paramount.
Keywords for Technical Search:
PO‑32RL(PC), CONTEC, opto‑isolated digital output card, 32‑channel output board, negative common, open collector, 35 V 150 mA, 1 kVrms isolation, 37‑pin D‑SUB, PC‑Bus ISA, industrial automation, digital I/O interface, API‑TOOL driver, LabVIEW VI‑DAQ, surge protection, opto‑coupler isolation, CONTEC digital I/O series.
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ContecCatalog2011-2012-en-H Digital IO.pdf
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