1. Product Overview
Product Name: ATCH-16(PC)
Model: ATCH-16(PC)
Series: AD12/AD16 Series Expansion Modules
Article Number: ATCH-16(PC)
Manufacturer: Contec Co., Ltd.

The Contec ATCH-16(PC) is an analog and digital input expansion module designed as an accessory for Contec’s AD12-16(PC)EH and AD16-16(PC)EH data acquisition boards. It provides additional input capacity, extending the total number of available channels to 32 single-ended (SE) analog inputs and 16 digital inputs (DI). The module is engineered for integration into PC-based measurement and control systems, offering a compact, slot-mounted form factor that ensures seamless mechanical and electrical compatibility with the host boards.

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2. Key Features
- Expansion Capability: Extends the input capacity of compatible Contec AD series boards (AD12-16(PC)EH and AD16-16(PC)EH) to a total of 32 single-ended analog inputs and 16 digital inputs.
- Voltage Range: Supports analog input signals up to ±10 V, suitable for a wide range of industrial and laboratory measurement applications.
- Compact Form Factor: Designed as a slot bracket module with dimensions of 75 mm × 40 mm, allowing easy installation within standard PC chassis or instrumentation enclosures.
- Seamless Integration: Functions as an accessory module that directly interfaces with the host AD board, maintaining full compatibility with Contec’s data acquisition architecture.
- High Signal Density: Provides a large number of input channels in a small physical footprint, optimizing space utilization in multi-channel measurement systems.
- Robust Construction: Manufactured by Contec, known for high-quality industrial-grade electronic components, ensuring durability and long-term reliability.
- Ease of Installation: Mounts directly as a slot bracket, minimizing additional hardware requirements and simplifying system expansion.
- Flexible Application Range: Suitable for analog signal monitoring, digital input acquisition, and mixed-signal data collection in automation, testing, and control environments.

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3. Technical Specifications
- Product Type: Input Expansion Module
- Model Number: ATCH-16(PC)
- Compatible Host Devices: AD12-16(PC)EH, AD16-16(PC)EH
- Analog Input Channels: 32 Single-Ended (SE) channels (when combined with host board)
- Digital Input Channels: 16 channels (when combined with host board)
- Input Voltage Range: ±10 V maximum
- Mounting Type: Slot bracket (PC expansion slot mounting)
- Physical Dimensions: 75 mm (width) × 40 mm (height)
- Material: Industrial-grade PCB with metal bracket housing
- Weight: Approximately 50–100 g (typical for slot-mounted accessory modules; exact weight may vary)
- Operating Environment: Designed for standard PC internal environments (0–50°C typical operating temperature range, non-condensing humidity)
- Electrical Interface: Direct connection to compatible AD board via internal connector or ribbon cable (depending on host configuration)
- Power Supply: Draws power from host AD board; no separate external power required
- Signal Type: Analog (single-ended) and digital input signals
- Input Impedance: High impedance input circuitry (typical of Contec AD series boards, ensuring minimal signal loading)
- Construction: Rigid PCB assembly with precision connectors and shielded bracket for noise reduction

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4. Functionality
The ATCH-16(PC) functions as an input expansion accessory for Contec’s AD12-16(PC)EH and AD16-16(PC)EH analog-to-digital converter (ADC) boards. When installed, it increases the total number of available input channels, enabling the host system to handle more simultaneous analog and digital signals.

Operational Principle:
- The module connects directly to the host AD board through a dedicated expansion interface.
- Analog signals (up to ±10 V) are routed through the ATCH-16(PC) to the host ADC circuitry for conversion and processing.
- Digital input lines are similarly extended, allowing the system to monitor additional discrete signals such as switches, sensors, or logic-level inputs.
- The host board’s driver and software automatically recognize the additional channels, integrating them into the existing data acquisition framework.

Use Cases and Applications:
- Industrial Automation: Expanding sensor input capacity for process monitoring and control systems.
- Laboratory Measurement: Increasing the number of analog channels for simultaneous data collection from multiple instruments.
- Testing and Validation: Supporting multi-point signal acquisition in product testing setups.
- Embedded PC Systems: Providing additional I/O capability for PC-based controllers and embedded data acquisition platforms.
- Research and Development: Facilitating high-channel-count experiments requiring synchronized analog and digital data capture.

Compatibility:
- Fully compatible with Contec AD12-16(PC)EH and AD16-16(PC)EH boards.
- Designed to operate within the same software and driver environment as the host board, ensuring plug-and-play functionality.
- Compatible with standard PC expansion slots for mechanical mounting.

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5. Components & Accessories
Included Items:
- ATCH-16(PC) expansion module (main unit)
- Slot bracket mounting hardware (integrated)
- Connection interface (pre-installed connector for host board linkage)
- Basic installation documentation or quick-start guide (depending on packaging)

Optional Accessories:
- Signal cables for connecting external sensors or signal sources to the input terminals.
- Terminal blocks or breakout boards for easier wiring and signal management.
- Shielded cables for noise-sensitive analog applications.
- Mounting screws or brackets for securing the module in custom enclosures.

Connectors:
- Internal connector for interfacing with AD12-16(PC)EH or AD16-16(PC)EH boards.
- External signal input connectors (depending on host board configuration).
- Grounding and shielding points to minimize electrical interference.

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

Installation Procedure:
1. Power off the PC and disconnect it from the power source.
2. Open the PC chassis and locate the installed Contec AD board.
3. Attach the ATCH-16(PC) module to the designated expansion connector on the host board.
4. Secure the module using the provided slot bracket mounting hardware.
5. Connect external analog and digital input lines to the appropriate terminals.
6. Close the chassis and power on the system.
7. Verify module recognition through Contec’s driver software or diagnostic utilities.

Configuration:
- The module requires no separate configuration beyond physical installation.
- Channel mapping and calibration are managed through the host board’s software interface.
- Input range (±10 V) is fixed and automatically recognized by the system.

Mounting Options:
- Standard PC slot bracket mounting (default).
- Optional custom panel or rack mounting using the same bracket dimensions (75 × 40 mm).

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7. Performance & Capabilities
Analog Input Performance:
- Input Range: ±10 V maximum per channel.
- Channel Count: Expands total system capacity to 32 SE channels.
- Signal Type: Single-ended analog inputs (common ground reference).
- Input Resolution: Determined by host AD board (12-bit for AD12-16, 16-bit for AD16-16).
- Sampling Rate: Dependent on host board’s ADC performance; the ATCH-16(PC) does not limit sampling speed.
- Input Impedance: High impedance input circuitry ensures minimal signal distortion.

Digital Input Performance:
- Channel Count: Expands total system capacity to 16 DI channels.
- Logic Levels: Compatible with TTL/CMOS logic levels (as defined by host board).
- Response Time: Determined by host board’s digital input circuitry.

Efficiency and Limitations:
- The ATCH-16(PC) serves as a passive expansion interface; it does not perform signal conditioning or conversion independently.
- Performance parameters such as resolution, sampling rate, and accuracy are governed by the host AD board.
- The ±10 V input range defines the maximum allowable signal amplitude; exceeding this may result in clipping or damage.
- The module’s compact size and passive design ensure negligible power consumption and minimal heat generation.

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8. Standards & Compliance
Certifications and Compliance:
- Designed and manufactured by Contec Co., Ltd., a company known for compliance with international quality and safety standards.
- RoHS Compliant: Constructed using lead-free materials and environmentally safe manufacturing processes.
- CE Mark (typical for Contec products): Indicates conformity with European safety and electromagnetic compatibility (EMC) directives.
- EMC Compliance: Designed to minimize electromagnetic interference when installed in compliant PC systems.
- Quality Assurance: Manufactured under ISO 9001-certified quality management systems (typical for Contec production facilities).

Industry Standards:
- Compatible with standard PC expansion slot dimensions and mechanical specifications.
- Electrical interface adheres to Contec’s proprietary AD series expansion standard.
- Signal levels and grounding conform to typical industrial analog/digital I/O conventions.

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9. Additional Information
Warranty:
- Standard Contec limited warranty (typically 1 year from date of purchase; subject to regional variations).
- Covers defects in materials and workmanship under normal operating conditions.

Support:
- Technical support available through Contec’s global service network.
- Access to product documentation, driver updates, and software tools via Contec’s official website.
- Application notes and integration guides provided for system developers and engineers.

Maintenance:
- The ATCH-16(PC) requires minimal maintenance due to its passive electronic design.
- Periodic inspection recommended to ensure secure connections and clean contact surfaces.
- Avoid exposure to excessive dust, moisture, or vibration to maintain long-term reliability.

Firmware and Software Updates:
- The module itself does not contain firmware; updates are managed through the host AD board’s driver and software environment.
- Contec periodically releases driver updates to enhance compatibility with new operating systems and development environments.

Service Life and Reliability:
- Designed for continuous operation in industrial and laboratory environments.
- High-quality components ensure long operational life and stable performance.

Environmental Considerations:
- Compliant with environmental directives for electronic equipment disposal (WEEE).
- Compact design minimizes material usage and environmental footprint.

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### Summary
The Contec ATCH-16(PC) is a dedicated input expansion module engineered to extend the analog and digital input capacity of Contec’s AD12-16(PC)EH and AD16-16(PC)EH data acquisition boards. With support for up to 32 single-ended analog inputs and 16 digital inputs, a ±10 V input range, and a compact 75 × 40 mm slot-mounted design, it provides a robust, space-efficient solution for high-channel-count measurement systems. Its seamless integration, industrial-grade construction, and compliance with international standards make it an ideal choice for engineers and system integrators seeking scalable, reliable data acquisition expansion in PC-based environments.