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- High-Resolution Analog-to-Digital Conversion:
12-bit resolution ensures precise signal digitization suitable for scientific and industrial measurement applications.
- Flexible Input Configuration:
Supports 16 single-ended (SE) or 8 differential (DI) analog input channels, allowing users to select between higher channel count or improved noise immunity.
- Multiple Input Voltage Ranges:
Configurable input ranges of ±10 V, ±5 V, and 0–10 V, enabling compatibility with a wide variety of analog sensors and transducers.
- Sampling Rate:
Maximum sampling speed of 50 kS/s (50,000 samples per second), providing sufficient temporal resolution for medium-speed data acquisition tasks.
- ISA Bus Interface:
Designed for ISA-bus PCs, ensuring compatibility with legacy industrial systems and laboratory setups that rely on ISA expansion slots.
- Integrated Counter/Timer:
Equipped with an Intel 8254-2 programmable counter/timer with a 1 µs resolution, suitable for event counting, frequency measurement, and timing control.
- Digital I/O Capability:
Includes 1 input and 1 output TTL-level I/O line, allowing simple digital control or status signaling.
- Interrupt Support:
Supports multiple interrupt request (IRQ) lines: IRQ 2, 3, 4, 5, 6, or 7, providing flexible system integration and efficient data handling.
- Compact Form Factor:
Physical dimensions of 143 mm × 107 mm, optimized for standard ISA slots while maintaining sufficient space for connectors and circuitry.
- Standard Connector Interface:
Features a D-type 37-pin female connector, providing a robust and standardized interface for analog and digital signal connections.
- Industrial Reliability:
Manufactured by Contec, a trusted provider of industrial PC components, ensuring long-term reliability, stable performance, and consistent quality.
12-bit resolution ensures precise signal digitization suitable for scientific and industrial measurement applications.
- Flexible Input Configuration:
Supports 16 single-ended (SE) or 8 differential (DI) analog input channels, allowing users to select between higher channel count or improved noise immunity.
- Multiple Input Voltage Ranges:
Configurable input ranges of ±10 V, ±5 V, and 0–10 V, enabling compatibility with a wide variety of analog sensors and transducers.
- Sampling Rate:
Maximum sampling speed of 50 kS/s (50,000 samples per second), providing sufficient temporal resolution for medium-speed data acquisition tasks.
- ISA Bus Interface:
Designed for ISA-bus PCs, ensuring compatibility with legacy industrial systems and laboratory setups that rely on ISA expansion slots.
- Integrated Counter/Timer:
Equipped with an Intel 8254-2 programmable counter/timer with a 1 µs resolution, suitable for event counting, frequency measurement, and timing control.
- Digital I/O Capability:
Includes 1 input and 1 output TTL-level I/O line, allowing simple digital control or status signaling.
- Interrupt Support:
Supports multiple interrupt request (IRQ) lines: IRQ 2, 3, 4, 5, 6, or 7, providing flexible system integration and efficient data handling.
- Compact Form Factor:
Physical dimensions of 143 mm × 107 mm, optimized for standard ISA slots while maintaining sufficient space for connectors and circuitry.
- Standard Connector Interface:
Features a D-type 37-pin female connector, providing a robust and standardized interface for analog and digital signal connections.
- Industrial Reliability:
Manufactured by Contec, a trusted provider of industrial PC components, ensuring long-term reliability, stable performance, and consistent quality.
1. Product Overview
Product Name: PC AD Card 50kS/s 12bit 16SE/8DI 1/1 TTL IO
Model: ADC-35(PC)
Series: ADC Series – PC-based Analog-to-Digital Conversion Cards
Article Number: ADC-35(PC)
Manufacturer: Contec Co., Ltd.
The Contec ADC-35(PC) is a high-performance analog-to-digital (A/D) conversion card designed for ISA-bus PC systems. It provides precise analog signal acquisition and digital input/output capabilities for industrial, laboratory, and embedded measurement applications. With a sampling rate of up to 50 kS/s, 12-bit resolution, and support for 16 single-ended or 8 differential input channels, the ADC-35(PC) delivers reliable and accurate data acquisition for a wide range of analog measurement tasks. The card integrates a programmable counter/timer (Intel 8254-2), TTL-level I/O, and flexible voltage input ranges, making it a versatile solution for engineers and system integrators requiring dependable analog input performance in legacy PC-based control and monitoring systems.
2. Key Features
- High-Resolution Analog-to-Digital Conversion:
12-bit resolution ensures precise signal digitization suitable for scientific and industrial measurement applications.
- Flexible Input Configuration:
Supports 16 single-ended (SE) or 8 differential (DI) analog input channels, allowing users to select between higher channel count or improved noise immunity.
- Multiple Input Voltage Ranges:
Configurable input ranges of ±10 V, ±5 V, and 0–10 V, enabling compatibility with a wide variety of analog sensors and transducers.
- Sampling Rate:
Maximum sampling speed of 50 kS/s (50,000 samples per second), providing sufficient temporal resolution for medium-speed data acquisition tasks.
- ISA Bus Interface:
Designed for ISA-bus PCs, ensuring compatibility with legacy industrial systems and laboratory setups that rely on ISA expansion slots.
- Integrated Counter/Timer:
Equipped with an Intel 8254-2 programmable counter/timer with a 1 µs resolution, suitable for event counting, frequency measurement, and timing control.
- Digital I/O Capability:
Includes 1 input and 1 output TTL-level I/O line, allowing simple digital control or status signaling.
- Interrupt Support:
Supports multiple interrupt request (IRQ) lines: IRQ 2, 3, 4, 5, 6, or 7, providing flexible system integration and efficient data handling.
- Compact Form Factor:
Physical dimensions of 143 mm × 107 mm, optimized for standard ISA slots while maintaining sufficient space for connectors and circuitry.
- Standard Connector Interface:
Features a D-type 37-pin female connector, providing a robust and standardized interface for analog and digital signal connections.
- Industrial Reliability:
Manufactured by Contec, a trusted provider of industrial PC components, ensuring long-term reliability, stable performance, and consistent quality.
3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model | ADC-35(PC) |
| Bus Interface | ISA (Industry Standard Architecture) |
| Analog Input Channels | 16 Single-Ended (SE) or 8 Differential (DI) |
| Resolution | 12 bits |
| Sampling Rate | Up to 50 kS/s |
| Input Voltage Ranges | ±10 V, ±5 V, 0–10 V |
| Input Type | Voltage input |
| Input Connector | D-type 37-pin female |
| Digital I/O | 1 TTL input, 1 TTL output |
| Counter/Timer | Intel 8254-2, 3-channel programmable counter/timer, 1 µs base clock |
| Interrupt Lines | Selectable: IRQ 2, 3, 4, 5, 6, or 7 |
| Dimensions | 143 mm (W) × 107 mm (D) |
| Weight | Approx. dependent on configuration (typically < 200 g) |
| Power Requirements | Supplied via ISA bus (standard PC power rails) |
| Operating Temperature | Typically 0–50°C (standard industrial range) |
| Storage Temperature | -20°C to +70°C (typical) |
| Relative Humidity | 10–90% (non-condensing) |
| Mounting | Internal PC ISA slot |
| Material | PCB with metal bracket and D-sub connector |
| Manufacturer | Contec Co., Ltd. |
4. Functionality
The ADC-35(PC) functions as an analog-to-digital conversion interface card for PC-based data acquisition systems. Installed in an ISA slot, it allows the host computer to sample analog signals from external sensors, transducers, or instrumentation devices. The card converts analog voltage inputs into 12-bit digital values, which can then be processed, displayed, or logged by software running on the PC.
Operational Workflow:
1. Signal Input: Analog signals are connected to the D-type 37-pin connector. Depending on configuration, the card can accept up to 16 single-ended or 8 differential inputs.
2. Range Selection: Input voltage range (±10 V, ±5 V, or 0–10 V) is selected via software or jumper settings.
3. Sampling: The onboard A/D converter samples the input signals at rates up to 50 kS/s.
4. Data Transfer: Converted digital data is transferred to the PC memory through the ISA bus interface.
5. Interrupt Handling: The card can generate interrupts on selected IRQ lines to signal data readiness or event completion.
6. Digital I/O: The TTL input/output lines can be used for triggering, control signals, or synchronization with external devices.
7. Timing and Counting: The integrated 8254-2 counter/timer provides precise timing control for sampling intervals, event counting, or pulse generation.
Applications:
- Industrial process monitoring and control
- Laboratory data acquisition and instrumentation
- Sensor signal measurement and logging
- Educational and research experiments
- Legacy system upgrades and maintenance
- Embedded control systems using ISA-based PCs
Compatibility:
- Compatible with standard ISA-bus PCs and industrial computers.
- Works with Contec’s software drivers and SDKs for data acquisition.
- Supports integration with custom software via standard I/O addressing and interrupt handling.
5. Components & Accessories
Included Components:
- ADC-35(PC) main card (ISA form factor)
- D-type 37-pin female connector (onboard)
- Metal mounting bracket for PC chassis installation
- User manual and installation guide (typically provided by Contec)
Optional Accessories (available separately):
- Shielded analog input cables (37-pin D-sub to terminal block)
- External terminal boards for signal wiring (e.g., Contec analog I/O terminal boards)
- Signal conditioning modules (for filtering, isolation, or amplification)
- Software development kit (SDK) and driver packages for Windows or DOS environments
- Mounting screws and standoffs for secure installation
Connectors:
- Analog/Digital I/O Connector: D-type 37-pin female
- Channels 0–15 (analog input)
- Digital I/O lines (TTL input/output)
- Ground and reference pins
- Counter/timer signal lines (if applicable)
6. Installation & Setup
System Requirements:
- PC with available ISA expansion slot
- Compatible operating system (typically DOS, Windows 95/98/XP, or industrial OS supporting ISA drivers)
- Power supplied through ISA bus (no external power required)
Installation Procedure:
1. Power off the PC and disconnect it from the power source.
2. Remove the PC chassis cover to access the ISA slots.
3. Insert the ADC-35(PC) card firmly into an available ISA slot.
4. Secure the card using the mounting screw on the bracket.
5. Connect external analog and digital signals to the D-type 37-pin connector.
6. Configure jumpers or DIP switches for input range, channel mode (SE/DI), and IRQ selection as required.
7. Power on the PC and install the appropriate Contec driver or software package.
8. Verify operation using the provided diagnostic or test utility.
Configuration Options:
- Channel Mode Selection: Jumper or software setting for 16SE or 8DI mode.
- Voltage Range Selection: Jumper or software configuration for ±10 V, ±5 V, or 0–10 V.
- Interrupt Selection: Hardware jumper to assign IRQ line (2, 3, 4, 5, 6, or 7).
- Counter/Timer Setup: Configurable via software for timing, counting, or pulse generation tasks.
Mounting Options:
- Standard internal mounting in PC chassis via ISA slot.
- Optional external breakout boards can be mounted on DIN rails or panels for convenient wiring access.
7. Performance & Capabilities
Analog Performance:
- Resolution: 12 bits (4096 discrete levels)
- Sampling Rate: Up to 50,000 samples per second
- Input Range Accuracy: Dependent on calibration and environmental conditions; typically within ±0.1% of full scale
- Input Impedance: High impedance input stage to minimize loading effects on signal sources
- Channel Crosstalk: Low crosstalk between channels in differential mode for improved signal integrity
Digital I/O Performance:
- Logic Levels: TTL-compatible (0–5 V)
- Input Threshold: Standard TTL input thresholds (Low < 0.8 V, High > 2.0 V)
- Output Drive Capability: Sufficient to drive standard TTL loads
Counter/Timer Performance:
- Base Clock: 1 µs resolution
- Functionality: Event counting, frequency measurement, pulse width modulation, or timing control
- Programmable Modes: Supports standard 8254 modes (Mode 0–5)
System Performance:
- Bus Throughput: Optimized for ISA bus data transfer rates
- Interrupt Latency: Dependent on system configuration; supports efficient interrupt-driven data acquisition
- Reliability: Industrial-grade design ensures stable operation under continuous use
Limitations:
- ISA bus dependency limits use to legacy or industrial PCs with ISA slots
- Maximum sampling rate (50 kS/s) may not be sufficient for high-speed applications
- Limited digital I/O (1 input, 1 output) restricts complex control tasks
8. Standards & Compliance
- Bus Standard: Complies with ISA (Industry Standard Architecture) electrical and mechanical specifications
- Signal Standards: TTL-compatible digital I/O
- Component Standards: Utilizes Intel 8254-2 counter/timer, a widely recognized industry-standard component
- Safety & EMC Compliance: Designed to meet general industrial electronic equipment standards (specific certifications may vary by region)
- Quality Assurance: Manufactured under Contec’s ISO-certified quality management system
- Environmental Compliance: RoHS-compliant materials and lead-free soldering (depending on production batch)
9. Additional Information
Warranty:
Typically covered by Contec’s standard limited warranty (duration varies by region, commonly 1 year). Warranty covers defects in materials and workmanship under normal operating conditions.
Technical Support:
Contec provides comprehensive technical support, including driver downloads, software updates, and application notes. Support is available through Contec’s website, email, or authorized distributors.
Maintenance:
- Periodic inspection of connectors and contacts recommended to ensure reliable signal transmission.
- Avoid exposure to excessive dust, humidity, or vibration.
- Calibration may be performed periodically to maintain measurement accuracy.
Software & Updates:
- Compatible with Contec’s data acquisition software and SDKs.
- Driver support typically available for legacy Windows and DOS environments.
- Example programs and libraries provided for rapid integration into custom applications.
Service & Replacement:
- Replacement parts and accessories available through Contec’s authorized service centers.
- Long-term availability of ISA products maintained for industrial customers requiring extended lifecycle support.
Documentation:
- User manual includes detailed pin assignments, jumper settings, and programming references.
- Application notes and wiring diagrams assist in system integration and troubleshooting.
Summary
The Contec ADC-35(PC) is a robust, high-precision 12-bit, 50 kS/s analog-to-digital conversion card designed for ISA-bus PCs. It offers 16 single-ended or 8 differential analog input channels, configurable voltage ranges, and integrated digital I/O for versatile data acquisition and control applications. With its Intel 8254-2 counter/timer, TTL-level I/O, and flexible interrupt configuration, the ADC-35(PC) provides a complete solution for engineers and developers working with legacy or industrial PC systems. Its compact design, reliable performance, and Contec’s proven quality make it an ideal choice for measurement, monitoring, and control tasks in industrial, laboratory, and educational environments.
Product Name: PC AD Card 50kS/s 12bit 16SE/8DI 1/1 TTL IO
Model: ADC-35(PC)
Series: ADC Series – PC-based Analog-to-Digital Conversion Cards
Article Number: ADC-35(PC)
Manufacturer: Contec Co., Ltd.
The Contec ADC-35(PC) is a high-performance analog-to-digital (A/D) conversion card designed for ISA-bus PC systems. It provides precise analog signal acquisition and digital input/output capabilities for industrial, laboratory, and embedded measurement applications. With a sampling rate of up to 50 kS/s, 12-bit resolution, and support for 16 single-ended or 8 differential input channels, the ADC-35(PC) delivers reliable and accurate data acquisition for a wide range of analog measurement tasks. The card integrates a programmable counter/timer (Intel 8254-2), TTL-level I/O, and flexible voltage input ranges, making it a versatile solution for engineers and system integrators requiring dependable analog input performance in legacy PC-based control and monitoring systems.
2. Key Features
- High-Resolution Analog-to-Digital Conversion:
12-bit resolution ensures precise signal digitization suitable for scientific and industrial measurement applications.
- Flexible Input Configuration:
Supports 16 single-ended (SE) or 8 differential (DI) analog input channels, allowing users to select between higher channel count or improved noise immunity.
- Multiple Input Voltage Ranges:
Configurable input ranges of ±10 V, ±5 V, and 0–10 V, enabling compatibility with a wide variety of analog sensors and transducers.
- Sampling Rate:
Maximum sampling speed of 50 kS/s (50,000 samples per second), providing sufficient temporal resolution for medium-speed data acquisition tasks.
- ISA Bus Interface:
Designed for ISA-bus PCs, ensuring compatibility with legacy industrial systems and laboratory setups that rely on ISA expansion slots.
- Integrated Counter/Timer:
Equipped with an Intel 8254-2 programmable counter/timer with a 1 µs resolution, suitable for event counting, frequency measurement, and timing control.
- Digital I/O Capability:
Includes 1 input and 1 output TTL-level I/O line, allowing simple digital control or status signaling.
- Interrupt Support:
Supports multiple interrupt request (IRQ) lines: IRQ 2, 3, 4, 5, 6, or 7, providing flexible system integration and efficient data handling.
- Compact Form Factor:
Physical dimensions of 143 mm × 107 mm, optimized for standard ISA slots while maintaining sufficient space for connectors and circuitry.
- Standard Connector Interface:
Features a D-type 37-pin female connector, providing a robust and standardized interface for analog and digital signal connections.
- Industrial Reliability:
Manufactured by Contec, a trusted provider of industrial PC components, ensuring long-term reliability, stable performance, and consistent quality.
3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model | ADC-35(PC) |
| Bus Interface | ISA (Industry Standard Architecture) |
| Analog Input Channels | 16 Single-Ended (SE) or 8 Differential (DI) |
| Resolution | 12 bits |
| Sampling Rate | Up to 50 kS/s |
| Input Voltage Ranges | ±10 V, ±5 V, 0–10 V |
| Input Type | Voltage input |
| Input Connector | D-type 37-pin female |
| Digital I/O | 1 TTL input, 1 TTL output |
| Counter/Timer | Intel 8254-2, 3-channel programmable counter/timer, 1 µs base clock |
| Interrupt Lines | Selectable: IRQ 2, 3, 4, 5, 6, or 7 |
| Dimensions | 143 mm (W) × 107 mm (D) |
| Weight | Approx. dependent on configuration (typically < 200 g) |
| Power Requirements | Supplied via ISA bus (standard PC power rails) |
| Operating Temperature | Typically 0–50°C (standard industrial range) |
| Storage Temperature | -20°C to +70°C (typical) |
| Relative Humidity | 10–90% (non-condensing) |
| Mounting | Internal PC ISA slot |
| Material | PCB with metal bracket and D-sub connector |
| Manufacturer | Contec Co., Ltd. |
4. Functionality
The ADC-35(PC) functions as an analog-to-digital conversion interface card for PC-based data acquisition systems. Installed in an ISA slot, it allows the host computer to sample analog signals from external sensors, transducers, or instrumentation devices. The card converts analog voltage inputs into 12-bit digital values, which can then be processed, displayed, or logged by software running on the PC.
Operational Workflow:
1. Signal Input: Analog signals are connected to the D-type 37-pin connector. Depending on configuration, the card can accept up to 16 single-ended or 8 differential inputs.
2. Range Selection: Input voltage range (±10 V, ±5 V, or 0–10 V) is selected via software or jumper settings.
3. Sampling: The onboard A/D converter samples the input signals at rates up to 50 kS/s.
4. Data Transfer: Converted digital data is transferred to the PC memory through the ISA bus interface.
5. Interrupt Handling: The card can generate interrupts on selected IRQ lines to signal data readiness or event completion.
6. Digital I/O: The TTL input/output lines can be used for triggering, control signals, or synchronization with external devices.
7. Timing and Counting: The integrated 8254-2 counter/timer provides precise timing control for sampling intervals, event counting, or pulse generation.
Applications:
- Industrial process monitoring and control
- Laboratory data acquisition and instrumentation
- Sensor signal measurement and logging
- Educational and research experiments
- Legacy system upgrades and maintenance
- Embedded control systems using ISA-based PCs
Compatibility:
- Compatible with standard ISA-bus PCs and industrial computers.
- Works with Contec’s software drivers and SDKs for data acquisition.
- Supports integration with custom software via standard I/O addressing and interrupt handling.
5. Components & Accessories
Included Components:
- ADC-35(PC) main card (ISA form factor)
- D-type 37-pin female connector (onboard)
- Metal mounting bracket for PC chassis installation
- User manual and installation guide (typically provided by Contec)
Optional Accessories (available separately):
- Shielded analog input cables (37-pin D-sub to terminal block)
- External terminal boards for signal wiring (e.g., Contec analog I/O terminal boards)
- Signal conditioning modules (for filtering, isolation, or amplification)
- Software development kit (SDK) and driver packages for Windows or DOS environments
- Mounting screws and standoffs for secure installation
Connectors:
- Analog/Digital I/O Connector: D-type 37-pin female
- Channels 0–15 (analog input)
- Digital I/O lines (TTL input/output)
- Ground and reference pins
- Counter/timer signal lines (if applicable)
6. Installation & Setup
System Requirements:
- PC with available ISA expansion slot
- Compatible operating system (typically DOS, Windows 95/98/XP, or industrial OS supporting ISA drivers)
- Power supplied through ISA bus (no external power required)
Installation Procedure:
1. Power off the PC and disconnect it from the power source.
2. Remove the PC chassis cover to access the ISA slots.
3. Insert the ADC-35(PC) card firmly into an available ISA slot.
4. Secure the card using the mounting screw on the bracket.
5. Connect external analog and digital signals to the D-type 37-pin connector.
6. Configure jumpers or DIP switches for input range, channel mode (SE/DI), and IRQ selection as required.
7. Power on the PC and install the appropriate Contec driver or software package.
8. Verify operation using the provided diagnostic or test utility.
Configuration Options:
- Channel Mode Selection: Jumper or software setting for 16SE or 8DI mode.
- Voltage Range Selection: Jumper or software configuration for ±10 V, ±5 V, or 0–10 V.
- Interrupt Selection: Hardware jumper to assign IRQ line (2, 3, 4, 5, 6, or 7).
- Counter/Timer Setup: Configurable via software for timing, counting, or pulse generation tasks.
Mounting Options:
- Standard internal mounting in PC chassis via ISA slot.
- Optional external breakout boards can be mounted on DIN rails or panels for convenient wiring access.
7. Performance & Capabilities
Analog Performance:
- Resolution: 12 bits (4096 discrete levels)
- Sampling Rate: Up to 50,000 samples per second
- Input Range Accuracy: Dependent on calibration and environmental conditions; typically within ±0.1% of full scale
- Input Impedance: High impedance input stage to minimize loading effects on signal sources
- Channel Crosstalk: Low crosstalk between channels in differential mode for improved signal integrity
Digital I/O Performance:
- Logic Levels: TTL-compatible (0–5 V)
- Input Threshold: Standard TTL input thresholds (Low < 0.8 V, High > 2.0 V)
- Output Drive Capability: Sufficient to drive standard TTL loads
Counter/Timer Performance:
- Base Clock: 1 µs resolution
- Functionality: Event counting, frequency measurement, pulse width modulation, or timing control
- Programmable Modes: Supports standard 8254 modes (Mode 0–5)
System Performance:
- Bus Throughput: Optimized for ISA bus data transfer rates
- Interrupt Latency: Dependent on system configuration; supports efficient interrupt-driven data acquisition
- Reliability: Industrial-grade design ensures stable operation under continuous use
Limitations:
- ISA bus dependency limits use to legacy or industrial PCs with ISA slots
- Maximum sampling rate (50 kS/s) may not be sufficient for high-speed applications
- Limited digital I/O (1 input, 1 output) restricts complex control tasks
8. Standards & Compliance
- Bus Standard: Complies with ISA (Industry Standard Architecture) electrical and mechanical specifications
- Signal Standards: TTL-compatible digital I/O
- Component Standards: Utilizes Intel 8254-2 counter/timer, a widely recognized industry-standard component
- Safety & EMC Compliance: Designed to meet general industrial electronic equipment standards (specific certifications may vary by region)
- Quality Assurance: Manufactured under Contec’s ISO-certified quality management system
- Environmental Compliance: RoHS-compliant materials and lead-free soldering (depending on production batch)
9. Additional Information
Warranty:
Typically covered by Contec’s standard limited warranty (duration varies by region, commonly 1 year). Warranty covers defects in materials and workmanship under normal operating conditions.
Technical Support:
Contec provides comprehensive technical support, including driver downloads, software updates, and application notes. Support is available through Contec’s website, email, or authorized distributors.
Maintenance:
- Periodic inspection of connectors and contacts recommended to ensure reliable signal transmission.
- Avoid exposure to excessive dust, humidity, or vibration.
- Calibration may be performed periodically to maintain measurement accuracy.
Software & Updates:
- Compatible with Contec’s data acquisition software and SDKs.
- Driver support typically available for legacy Windows and DOS environments.
- Example programs and libraries provided for rapid integration into custom applications.
Service & Replacement:
- Replacement parts and accessories available through Contec’s authorized service centers.
- Long-term availability of ISA products maintained for industrial customers requiring extended lifecycle support.
Documentation:
- User manual includes detailed pin assignments, jumper settings, and programming references.
- Application notes and wiring diagrams assist in system integration and troubleshooting.
Summary
The Contec ADC-35(PC) is a robust, high-precision 12-bit, 50 kS/s analog-to-digital conversion card designed for ISA-bus PCs. It offers 16 single-ended or 8 differential analog input channels, configurable voltage ranges, and integrated digital I/O for versatile data acquisition and control applications. With its Intel 8254-2 counter/timer, TTL-level I/O, and flexible interrupt configuration, the ADC-35(PC) provides a complete solution for engineers and developers working with legacy or industrial PC systems. Its compact design, reliable performance, and Contec’s proven quality make it an ideal choice for measurement, monitoring, and control tasks in industrial, laboratory, and educational environments.
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