1. Product Overview

Name: Extra Input Expansion Board for E‑Series Analog I/O
Model: ATUH‑16(PCI)
Series: Intelligent E Series Analog I/O Accessories
Article Number: ATUH‑16(PCI)
Manufacturer: CONTEC Co., Ltd. (Osaka, Japan)

The CONTEC ATUH‑16(PCI) is an analog input expansion sub‑board designed as an accessory for the AD12‑16U(PCI)‑series multifunction analog input boards. It extends the number of available analog input channels from 16 single‑ended (8 differential) to a total of 32 single‑ended or 16 differential inputs. The board connects directly to the host E‑series PCI analog input board via a 37‑pin D‑SUB interface and provides additional analog input capacity with full ±10 V input range compatibility. It is part of CONTEC’s Intelligent E‑Series family, which supports high‑speed, high‑precision data acquisition with onboard memory and advanced sampling control.

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2. Key Features

- Channel Expansion: Adds 16 single‑ended or 8 differential analog input channels to compatible E‑series boards (AD12‑16U(PCI)E, AD12‑16U(PCI)EH, AD16‑16U(PCI)EH, AD12‑16(PCI)E, AD16‑16(PCI)E).
- Voltage Range: Supports bipolar input ranges up to ±10 V, matching the host board’s analog input specifications.
- Interface: Uses a 37‑pin female D‑SUB connector for direct connection to the host board’s expansion port (CN3).
- Compact Form Factor: Small PCB footprint (80 mm × 60 mm) suitable for internal PCI chassis installation.
- High‑Precision Signal Path: Maintains the same analog signal quality and impedance characteristics as the base board, ensuring consistent measurement accuracy.
- Seamless Integration: Recognized automatically by the host board’s driver and software environment; no separate configuration required.
- Industrial Reliability: Designed for stable operation in industrial measurement and control environments with noise‑resistant analog circuitry.
- Software Compatibility: Fully supported by CONTEC’s API‑PAC(W32) and API‑TOOLs for Windows and Linux, as well as LabVIEW VI‑DAQ and MATLAB ML‑DAQ libraries.
- Accessory Ecosystem: Compatible with CONTEC’s analog terminal units (EPD‑37A, EPD‑37, ATP‑16) and shielded cables (PCB37PS, PCA37PS).

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3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Analog Input Channels | 16 single‑ended or 8 differential (expands host board total to 32 SE / 16 DI) |
| Input Range | Bipolar: ±10 V (typical), ±5 V, ±2.5 V; Unipolar: 0 – +10 V, 0 – +5 V |
| Input Impedance | ≥ 1 MΩ (same as host board) |
| Maximum Input Voltage | ±20 V (absolute maximum, non‑destructive) |
| Connector Type | 37‑pin D‑SUB female |
| Dimensions | 80 mm (L) × 60 mm (W) |
| Mounting | Internal PCI slot accessory board (occupies one slot) |
| Compatible Host Boards | AD12‑16U(PCI)E, AD12‑16U(PCI)EH, AD16‑16U(PCI)EH, AD12‑16(PCI)E, AD16‑16(PCI)E |
| Input Type | Single‑ended or differential (software‑selectable on host) |
| Input Coupling | DC‑coupled |
| Input Protection | Over‑voltage protection up to ±30 V |
| Operating Temperature | 0 °C – 50 °C |
| Storage Temperature | –10 °C – 60 °C |
| Humidity | 20 % – 90 % RH (non‑condensing) |
| Weight | Approx. 100 g |
| Material | FR‑4 PCB, gold‑plated edge connector |
| Compliance | PCI mechanical form factor, RoHS compliant |

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4. Functionality

The ATUH‑16(PCI) functions as a passive analog multiplexer sub‑board that connects to the expansion connector (CN3) of the host E‑series PCI analog input board. It routes additional analog input channels through the host board’s A/D converter circuitry, effectively doubling the number of available input channels without altering the sampling characteristics.

Operating Principle:
- The host board’s analog multiplexer selects input channels sequentially from both the onboard and ATUH‑16(PCI) channels.
- The A/D converter on the host board performs digitization at the same resolution and speed as the base configuration.
- The expansion board does not require separate power; it draws signal reference and ground from the host board.
- Channel selection, input range, and sampling control are managed entirely by the host board’s driver software.

Use Cases:
- Multi‑point voltage measurement systems.
- Data acquisition for laboratory instrumentation.
- Industrial process monitoring requiring more than 16 analog inputs.
- Expansion of existing E‑series systems for additional sensor inputs.

Compatibility:
- Fully compatible with CONTEC’s E‑series analog input boards.
- Supported by Windows and Linux drivers, LabVIEW VI‑DAQ, and MATLAB ML‑DAQ.
- Works with CONTEC’s terminal units and shielded cables for signal wiring.

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5. Components & Accessories

Included Items:
- ATUH‑16(PCI) expansion board (main unit)
- Mounting bracket for PCI slot
- User documentation (included with host board manual)

Optional Accessories:
- Cables:
- PCB37PS‑0.5P / PCB37PS‑1.5P (37‑pin D‑SUB shielded cable)
- PCA37PS‑0.5P / PCA37PS‑1.5P (37‑pin D‑SUB to open‑end shielded cable)
- Terminal Units:
- EPD‑37A / EPD‑37 (DIN‑rail mountable screw terminal blocks)
- ATP‑16 (BNC panel terminal unit for analog inputs)
- Signal Conditioning Boards:
- ATII‑8A (Isolated signal conditioning terminal board)
- ATLF‑8 (Low‑pass filter terminal board)
- ATSS‑16 (Simultaneous sample & hold board)
- Mounting Accessories:
- DIN‑ADP1 (DIN‑rail adapter for terminal units)

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6. Installation & Setup

Requirements:
- Compatible host board installed in a PCI slot.
- Available adjacent slot for the ATUH‑16(PCI) expansion board.
- Proper analog cabling and terminal units for external connections.

Installation Procedure:
1. Power off the PC and disconnect the power cord.
2. Remove the PC chassis cover and locate the host E‑series board.
3. Insert the ATUH‑16(PCI) into an adjacent PCI slot.
4. Connect the 37‑pin D‑SUB cable from the ATUH‑16(PCI) to the CN3 expansion connector on the host board.
5. Secure the board with the supplied bracket screw.
6. Reassemble the PC and power on.
7. The host board’s driver automatically detects the additional channels; no separate driver installation is required.
8. Configure channel assignments and input ranges using CONTEC’s API‑PAC(W32) or the provided configuration utility.

Mounting Options:
- Standard PCI bracket mounting.
- DIN‑rail mounting of terminal units via DIN‑ADP1.

Configuration:
- Channel mode (single‑ended/differential) and input range are set through the host board’s software interface.
- No jumpers or switches are present on the ATUH‑16(PCI).

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7. Performance & Capabilities

The ATUH‑16(PCI) inherits the performance characteristics of the host E‑series board. When connected, the total system performance remains consistent with the base board’s specifications.

| Parameter | Performance (with AD12‑16U(PCI)E) |
|----------------|----------------------------------------|
| A/D Resolution | 12 bit or 16 bit (depending on host) |
| Conversion Speed | Up to 1 µs/ch (AD12‑16U(PCI)E) |
| Input Range | ±10 V, ±5 V, ±2.5 V, 0–10 V, 0–5 V |
| Input Impedance | ≥ 1 MΩ |
| Accuracy | ±3 LSB (typical) |
| Sampling Control | Software, external trigger, or analog level trigger |
| Buffer Memory | 256 K‑word FIFO or ring buffer (on host) |
| Synchronization | Fully synchronized with host sampling clock |
| Isolation | Bus‑isolated via host board circuitry |
| Noise Immunity | Equivalent to host board; designed for industrial environments |

Limitations:
- The ATUH‑16(PCI) does not include its own A/D converter; it relies on the host board’s converter.
- Sampling speed per channel may decrease proportionally when total channel count increases.
- Only one expansion board can be connected per host board.

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8. Standards & Compliance

- Bus Interface: PCI mechanical form factor (for physical mounting only; no electrical PCI interface).
- Electrical Safety: Designed to meet IEC/EN 61010‑1 for measurement equipment.
- EMC Compliance: Conforms to EN 61326‑1 (industrial environment).
- RoHS Directive: Compliant with EU RoHS 2011/65/EU.
- Quality Assurance: Manufactured under ISO 9001‑certified quality management system.
- Environmental Standards: Lead‑free soldering, halogen‑free PCB materials.
- Operating Environment: 0 – 50 °C, 20 – 90 % RH (non‑condensing).
- Storage Environment: –10 – 60 °C, 10 – 95 % RH.

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9. Additional Information

Warranty:
Three‑year limited warranty covering defects in materials and workmanship under normal use. Warranty excludes damage due to improper installation, misuse, or modification.

Technical Support:
- Japan: CONTEC Co., Ltd., Osaka (Headquarters)
- USA: CONTEC Microelectronics USA, Milpitas, CA
- Europe: CONTEC Microelectronics Europe B.V., Hoofddorp, Netherlands
- Asia: Regional offices in Korea, China, and Taiwan

Maintenance:
- Periodic inspection of connectors and cables for secure contact.
- Avoid exposure to excessive dust, vibration, or humidity.
- Clean using anti‑static brush or compressed air; do not use solvents.

Software & Updates:
- Free driver and library downloads available at [www.contec.com](http://www.contec.com).
- Supported software packages:
- API‑PAC(W32): Windows 32‑bit/64‑bit driver and API library.
- API‑TOOLs for Linux: Kernel module and shared library for Linux systems.
- LabVIEW VI‑DAQ: VI library for National Instruments LabVIEW.
- MATLAB ML‑DAQ: MATLAB interface library for data acquisition.
- Runtime libraries are license‑free and include sample code and documentation.

Recommended System Configuration:
- PC with available PCI slot for host board and adjacent slot for expansion.
- Windows 10/11 or Linux kernel 5.x or later.
- Minimum 4 GB RAM and 1 GHz CPU for high‑speed sampling applications.

Maintenance & Calibration:
- The ATUH‑16(PCI) contains no active components requiring calibration.
- Calibration of analog input accuracy is performed on the host board only.

Service & Replacement:
- Return Merchandise Authorization (RMA) required for service.
- Repairs and replacements handled through authorized CONTEC service centers.

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### Summary

The CONTEC ATUH‑16(PCI) is a dedicated analog input expansion sub‑board for the AD12‑16U(PCI)‑series E‑series multifunction analog input boards. It doubles the available analog input channels to 32 single‑ended or 16 differential while maintaining the same ±10 V input range, impedance, and precision as the host board. The compact 80 × 60 mm board connects via a 37‑pin D‑SUB interface and integrates seamlessly with CONTEC’s software ecosystem, including Windows, Linux, LabVIEW, and MATLAB environments. Designed for industrial and laboratory data acquisition systems, the ATUH‑16(PCI) provides a reliable, high‑quality solution for expanding analog measurement capacity without compromising performance or accuracy.