1. Product Overview
Product Name: Extension Board 32SE/16DI Channels
Model: ATUH-16(PC)
Article Number: ATUH-16(PC)
Series: AD12-16U / AD16-16U Expansion Series
Manufacturer: Contec Co., Ltd.

The Contec ATUH-16(PC) is a dedicated extension board designed to expand the analog and digital input capabilities of Contec’s AD12-16U(PC)EH and AD16-16U(PC)EH data acquisition units. It provides additional 32 single-ended (SE) analog input channels and 16 digital input (DI) channels, enabling users to scale their measurement and control systems efficiently. The board is engineered for PC-based data acquisition systems, offering a compact form factor and reliable electrical performance for industrial, laboratory, and automation applications.

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2. Key Features
- Expansion Capability: Adds up to 32 single-ended analog inputs and 16 digital inputs to compatible Contec DAQ boards.
- Compatibility: Specifically designed for AD12-16U(PC)EH and AD16-16U(PC)EH models, ensuring seamless integration and signal consistency.
- Voltage Range: Supports analog input signals up to ±10 V, suitable for a wide range of sensor and instrumentation interfaces.
- Compact Design: Compact 80 mm × 60 mm board size allows easy installation within PC enclosures using a slot bracket mounting system.
- High-Density Input Configuration: Enables high channel density without requiring additional PCI slots or external modules.
- Stable Signal Transmission: Optimized PCB layout and grounding design minimize noise and crosstalk between analog and digital channels.
- Accessory Integration: Functions as an accessory input expansion for Contec’s AD series, maintaining consistent software and driver compatibility.
- Industrial Reliability: Built with high-quality components and robust connectors for long-term operation in demanding environments.

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3. Technical Specifications
- Product Type: Analog/Digital Input Extension Board
- Model Number: ATUH-16(PC)
- Manufacturer: Contec Co., Ltd.
- Supported Host Devices: AD12-16U(PC)EH, AD16-16U(PC)EH
- Analog Input Channels: 32 Single-Ended (SE)
- Digital Input Channels: 16
- Analog Input Voltage Range: ±10 V maximum
- Input Type: Single-ended analog, TTL-compatible digital inputs
- Mounting Method: Slot bracket (internal PC mounting)
- Board Dimensions: 80 mm (W) × 60 mm (D)
- Weight: Approximately 50–80 g (typical for small expansion boards; varies by configuration)
- Material: Multi-layer FR-4 PCB with gold-plated edge connectors
- Operating Temperature Range: Typically 0°C to +50°C (standard for Contec PC boards)
- Storage Temperature Range: -20°C to +60°C
- Humidity Range: 10–90% RH (non-condensing)
- Power Supply: Supplied via host board interface (no external power required)
- Signal Connector Type: Board-to-board or ribbon cable interface (depending on host configuration)
- Isolation: Non-isolated (uses common ground with host board)
- Compliance: Designed for CE and RoHS conformity

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4. Functionality
The ATUH-16(PC) functions as an input expansion module for Contec’s AD12-16U and AD16-16U data acquisition systems. When connected, it extends the total number of available input channels, allowing users to measure more analog and digital signals simultaneously.

Operational Principle:
- The board interfaces directly with the host DAQ card through a dedicated expansion connector.
- Analog signals (up to ±10 V) are routed through the board’s input terminals and processed by the host’s A/D converter.
- Digital input channels accept TTL-level signals, enabling monitoring of switches, sensors, or logic states.
- The board does not perform independent signal conversion; instead, it multiplexes additional input lines to the host’s A/D and digital input circuitry.

Use Cases and Applications:
- Industrial Automation: Monitoring multiple analog sensors (temperature, pressure, flow) and digital status signals.
- Laboratory Measurement Systems: Expanding channel count for multi-sensor experiments or data logging setups.
- Process Control: Integrating additional analog feedback and digital control signals into existing DAQ systems.
- Educational and Research Environments: Providing flexible input expansion for teaching and prototyping.
- Test and Measurement Equipment: Supporting high-channel-count data acquisition in compact PC-based systems.

Compatibility:
- Fully compatible with Contec AD12-16U(PC)EH and AD16-16U(PC)EH models.
- Supported by Contec’s standard driver libraries and software tools for Windows and Linux environments.
- Integrates with Contec’s API and SDK for custom application development.

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5. Components & Accessories
Included Items:
- ATUH-16(PC) extension board (main unit)
- Slot bracket for PC mounting
- Connection cable (if applicable, depending on host configuration)
- Installation guide or quick-start documentation

Optional Accessories:
- Additional signal cables or terminal blocks for analog/digital input wiring
- Shielded cable assemblies for noise-sensitive environments
- Mounting hardware for custom enclosures
- Software utilities and driver packages (available from Contec’s support site)

Connectors:
- Expansion connector for host board interface
- Input connectors for analog and digital signals (typically via ribbon or pin header)
- Ground reference terminals for signal integrity

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6. Installation & Setup
Requirements:
- Compatible host board (AD12-16U(PC)EH or AD16-16U(PC)EH) installed in a PC system
- Available internal slot space for mounting the extension board
- Proper grounding and shielding for analog signal integrity

Mounting Options:
- The ATUH-16(PC) is designed for slot bracket mounting, allowing it to be secured within a PC chassis.
- The board connects to the host DAQ card via a dedicated expansion connector or cable.

Configuration Steps:
1. Power off the PC and disconnect it from the power source.
2. Install the host DAQ card (if not already installed).
3. Attach the ATUH-16(PC) to the host card using the provided connector or cable.
4. Secure the board using the slot bracket to ensure mechanical stability.
5. Reconnect power and boot the system.
6. Install or update Contec’s driver software to recognize the additional input channels.
7. Verify operation using Contec’s diagnostic or configuration utility.

Safety Considerations:
- Ensure all connections are made with the system powered off.
- Avoid exceeding the ±10 V input range to prevent damage.
- Maintain proper grounding to minimize noise and interference.

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7. Performance & Capabilities
Analog Input Performance:
- Supports up to 32 single-ended analog inputs, expanding the host’s measurement capacity.
- Input voltage range of ±10 V, suitable for standard industrial sensors and transducers.
- Signal routing designed for minimal crosstalk and low noise.

Digital Input Performance:
- Provides 16 digital input channels, compatible with TTL logic levels.
- Capable of reading high/low states for switches, relays, or digital sensors.

Speed and Throughput:
- Sampling rate determined by the host DAQ card (the extension board does not alter conversion speed).
- Maintains full-speed operation of the host’s A/D converter across all channels.

Capacity and Efficiency:
- Expands total system input capacity to 32SE/16DI channels when combined with the host.
- Efficient signal routing ensures minimal latency and consistent timing across channels.

Limitations:
- Operates only as an extension; cannot function independently.
- Analog input range limited to ±10 V.
- Non-isolated inputs share a common ground with the host system.

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8. Standards & Compliance
- CE Marking: Designed to meet European safety and EMC requirements.
- RoHS Compliance: Manufactured in accordance with the Restriction of Hazardous Substances Directive.
- Quality Standards: Produced under Contec’s ISO 9001-certified quality management system.
- Environmental Standards: Conforms to standard operating and storage environmental conditions for PC-based instrumentation.
- Electrical Safety: Designed for low-voltage operation within PC enclosures; complies with standard PC interface safety guidelines.

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9. Additional Information
Warranty:
- Typically covered by Contec’s standard one-year limited warranty, providing repair or replacement for manufacturing defects.

Technical Support:
- Comprehensive technical documentation, driver downloads, and software updates available from Contec’s official website.
- Customer support includes email and phone assistance for installation, configuration, and troubleshooting.

Maintenance:
- Minimal maintenance required; periodic inspection for dust accumulation and connector integrity recommended.
- Avoid exposure to excessive humidity or vibration.

Software & Firmware Updates:
- Fully supported by Contec’s driver suite and API libraries.
- Compatible with updates to the AD12-16U and AD16-16U firmware and software packages.

Service Life & Reliability:
- Designed for long-term operation in continuous-use environments.
- High-quality PCB materials and connectors ensure stable performance over extended periods.

Documentation:
- User manual and datasheet provide detailed pin assignments, wiring diagrams, and configuration examples.
- Application notes available for integration with Contec’s measurement software and third-party platforms.

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### Summary
The Contec ATUH-16(PC) is a compact, high-density extension board engineered to expand the analog and digital input capacity of Contec’s AD12-16U(PC)EH and AD16-16U(PC)EH data acquisition systems. Offering 32 single-ended analog inputs and 16 digital inputs with a ±10 V signal range, it enables users to scale their measurement systems efficiently without additional PCI slots. Its 80 × 60 mm form factor and slot bracket mounting make it ideal for integration into PC-based industrial, laboratory, and automation environments.

Built to Contec’s high manufacturing standards, the ATUH-16(PC) ensures reliable signal integrity, compatibility with existing software ecosystems, and compliance with CE and RoHS standards. It is a robust, cost-effective solution for engineers and system integrators seeking to expand input capacity while maintaining compact system design and consistent performance.