Comprehensive Product Summary: ADLINK PCI-7296 Digital I/O Card

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### 1. Product Overview

Product Name: PCI-7296
Model: PCI-7296
Series: PCI-7224 / PCI-7248 / PCI-7296 Opto-22 Compatible Digital I/O Series
Article Number: PCI-7296
Manufacturer: ADLINK Technology Inc.
Product Type: PCI-Bus Digital I/O Card, 96-Channel, Opto-22 Compatible
Form Factor: Full-size 5V PCI card
Manufacturer Website: [www.adlinktech.com](http://www.adlinktech.com)

The ADLINK PCI-7296 is a high-density, 96-channel parallel digital input/output (DIO) card designed for industrial automation, data acquisition, and control applications. It is part of ADLINK’s NuDAQ PCI DIO series and provides full compatibility with the industry-standard Opto-22 I/O module interface. The card emulates four 8255 Programmable Peripheral Interface (PPI) chips operating in Mode 0, offering flexible digital I/O configurations and robust performance for PC-based control systems.

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### 2. Key Features

- High-Density Digital I/O:
96 TTL/DTL-compatible digital I/O channels organized as four 24-bit ports (Port A, B, C per PPI).

- Opto-22 Compatibility:
Fully compatible with Opto-22 standard 50-pin connectors, allowing direct connection to Opto-22 I/O modules and termination boards.

- 8255 PPI Emulation:
Emulates four industry-standard 8255 PPI chips in Mode 0 configuration, providing 24 I/O lines per chip.

- Buffered I/O Circuits:
Buffered input/output circuitry ensures higher driving capability and signal integrity.

- Programmable Timer/Counter:
Includes one 16-bit event counter and a cascaded 32-bit timer for interrupt generation and event counting.

- Dual Interrupt System:
Supports two independent interrupt sources (INT1 and INT2) selectable from DIO channels or timer outputs.

- Power Output Protection:
Provides +5V and +12V outputs on Opto-22 connectors with resettable fuses for external device protection.

- Plug and Play PCI Interface:
Fully compliant with PCI Plug and Play specifications; no manual configuration of IRQ or I/O address required.

- Software Support:
Comprehensive driver and library support for DOS, Windows 95/98/NT/2000, and Linux (via PCIS-DASK/X).
Compatible with LabVIEW®, HP VEE™, DASYLab™, InTouch™, ISaGRAF™, and OPC systems.

- Output Status Readback:
Allows software to verify output states for reliable control feedback.

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### 3. Technical Specifications

Digital I/O:
- Number of Channels: 96 input/output lines
- Logic Standard: 5V TTL/DTL compatible
- Input Voltage Levels:
- Logic High: 2.0 V to 5.25 V
- Logic Low: 0.0 V to 0.8 V
- Input Current:
- High: 20 µA
- Low: -0.2 mA
- Output Voltage Levels:
- High (Port A/B): ≥ 2.4 V
- Low (Port A/B): ≤ 0.5 V
- High (Port C): ≥ 2.4 V
- Low (Port C): ≤ 0.4 V
- Output Drive Capability:
- Source Current: 2.6 mA (Port A/B), 15 mA (Port C)
- Sink Current: 24 mA

Timer/Counter:
- 8254 programmable timer/counter chip
- One 16-bit event counter (Mode 0)
- Cascaded 32-bit timer (Mode 2)
- Input Clock Frequency: 2 MHz
- Max Timer Frequency: 500 kHz
- Min Timer Frequency: 0.000466 Hz

Power Requirements:
- +5 VDC @ 860 mA (typical), 940 mA (maximum)

Environmental:
- Operating Temperature: 0°C to 60°C
- Storage Temperature: -20°C to 80°C
- Humidity: 5% to 95%, non-condensing

Physical:
- Dimensions: 166 mm (L) × 102 mm (H)
- Connectors: Four 50-pin male ribbon connectors (CN1–CN4)
- Bus Interface: 5V PCI bus, 32-bit, Plug and Play compliant

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### 4. Functionality

Operation Principle:
The PCI-7296 functions as a 32-bit PCI target device, providing 96 programmable digital I/O lines. Each group of 24 lines corresponds to one 8255 PPI chip, divided into three 8-bit ports (A, B, C). Ports can be configured independently as input or output. The card supports both read and write operations through software libraries.

Use Cases and Applications:
- Industrial process monitoring and control
- Digital signal acquisition and generation
- Machine automation and test systems
- Contact closure and switch status monitoring
- Keyboard or relay matrix scanning
- Integration with A/D and D/A modules for hybrid data acquisition systems
- Direct interface with Opto-22 I/O modules for isolated control

Compatibility:
- Hardware: Opto-22 standard connectors and termination boards
- Software: Compatible with ADLINK’s NuDAQ, PCIS-DASK, and PCIS-DASK/X libraries
- Operating Systems: DOS, Windows 95/98/NT/2000, Linux
- Supported APIs: C/C++, Visual Basic, Delphi, LabVIEW, HP VEE, DASYLab, OPC, ISaGRAF, InTouch

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### 5. Components & Accessories

Included Items:
- PCI-7296 96-Channel DIO Card
- ADLINK Software & Utility CD
- User Manual and Software Installation Guide

Optional Termination Boards:
- TB-24R/24: 24-CH relay output board (24V coil, includes 1.5m ACL-10150 cable)
- TB-24P/24: 24-CH isolated digital input board (includes 1.5m ACL-10150 cable)
- TB-16P8R/24: 16 isolated DI + 8 relay outputs (includes 1.5m ACL-10150 cable)
- DIN-24G: 24-CH Grayhill I/O module board with DIN-rail mounting
- DIN-24R/24: 24-CH relay output board with DIN-rail mounting
- DIN-24P/24: 24-CH isolated digital input board with DIN-rail mounting

Cables:
- ACL-10150 1.5-meter 50-pin flat ribbon cable (included with termination boards)

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### 6. Installation & Setup

System Requirements:
- Available 32-bit PCI slot (5V signaling)
- Compatible PC running DOS, Windows 95/98/NT/2000, or Linux

Installation Steps:
1. Power off the PC and disconnect peripherals.
2. Insert the PCI-7296 into an available PCI slot.
3. Secure the card and reconnect system power.
4. The Plug and Play BIOS automatically assigns I/O addresses and IRQs.
5. Install ADLINK drivers from the provided CD.
6. Verify installation using the 7296UTIL.EXE diagnostic utility.

Jumper Configuration:
- JA1–JC4: Set power-on state (High, Low, or Floating) for each port.
- JP1–JP4: Configure +12V pins on CN1–CN4 as power or ground (default: ground).

Connector Pinout (per CN1–CN4):
- 50-pin male header, Opto-22 compatible
- Pins 1–25: Signal lines (PnA0–PnC7)
- Pins 26–50: Ground and power (+5V, +12V selectable)

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### 7. Performance & Capabilities

- Data Transfer Mode: Programmed I/O
- Maximum Transfer Rate: 500 Kbytes/s
- Interrupt Handling: Dual interrupt system (INT1, INT2)
- Event Counter: 16-bit, edge-triggered (P1C4 input)
- Timer Resolution: 32-bit cascaded, 2 MHz base clock
- Output Readback: Supported for verification
- Power Output: +5V and +12V available on each connector (0.5A max per connector, resettable fuse protected)

Limitations:
- No hardware isolation on I/O lines (requires external isolation boards)
- Limited current sourcing capability on Ports A/B (2.6 mA)
- PCI bus current limited to 0.5A per voltage rail

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### 8. Standards & Compliance

- Bus Interface: PCI Local Bus Specification Rev. 2.1 compliant
- Logic Standard: TTL/DTL compatible
- Opto-22 Interface: Fully compliant with Opto-22 standard pinout
- Environmental Compliance:
- Operating: 0–60°C
- Storage: -20–80°C
- Humidity: 5–95% non-condensing
- Safety & Protection: Resettable fuses on +5V and +12V outputs
- Software Standards:
- PCIS-DASK API for Windows 98/NT/2000
- PCIS-DASK/X for Linux
- LabVIEW and HP VEE certified drivers
- Regulatory: CE and FCC Class A (industrial environment)

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### 9. Additional Information

Warranty:
- Standard 2-year limited warranty from ADLINK Technology Inc.
- Covers defects in materials and workmanship under normal use.
- Excludes damage from misuse, modification, or environmental factors.

Support & Service:
- Technical Support: service@adlinktech.com
- Phone: +886-2-82265877
- Fax: +886-2-82265717
- Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan
- Website: [www.adlinktech.com](http://www.adlinktech.com)

Maintenance:
- No periodic calibration required.
- Keep connectors clean and free from dust.
- Use anti-static precautions during handling.

Software Updates:
- Latest drivers and utilities available on ADLINK’s website.
- Compatible with PCIS-DASK and DAQBench ActiveX control libraries for modern Windows systems.

Documentation:
- User’s Guide: NuDAQ PCI-7224/7248/7296 Digital I/O Card Manual Rev. 2.60
- Part No.: 50-11104-201
- Includes detailed register maps, programming examples, and C/C++ library references.

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### Summary

The ADLINK PCI-7296 is a robust, high-density digital I/O solution for industrial and laboratory automation. With 96 TTL-compatible channels, programmable interrupt and timer functions, and full Opto-22 compatibility, it provides a flexible interface for digital control and monitoring applications. Its plug-and-play PCI architecture, comprehensive software support, and optional termination boards make it ideal for system integrators and engineers requiring reliable, scalable digital I/O expansion in PC-based systems.