Comprehensive Product Summary: ADLINK PCI-7432 Isolated Digital I/O Card

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### 1. Product Overview

Product Name: PCI-7432
Model: PCI-7432
Series: NuDAQ / NuIPC 743X Series
Article Number: PCI-7432
Manufacturer: ADLINK Technology Inc.
Manufacturer Website: [www.adlinktech.com](http://www.adlinktech.com)

The ADLINK PCI-7432 is a high-density, isolated digital input/output (DIO) interface card designed for industrial and laboratory automation applications. It provides 32 isolated digital input channels and 32 isolated digital output channels, offering robust electrical isolation and high current drive capability. The PCI-7432 is part of ADLINK’s 743X series, which includes multiple variants for PCI, PCI Express, and CompactPCI platforms, ensuring compatibility across a wide range of system architectures.

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### 2. Key Features

- 64-Channel Total I/O Capacity: 32 isolated digital inputs and 32 isolated digital outputs on a single PCI card.
- Optical Isolation: 2500 V RMS isolation between channels and the host system, protecting against voltage surges and ground loops.
- High Output Drive Capability: Each isolated output channel can sink up to 500 mA at 24 V DC, suitable for driving relays, solenoids, and actuators.
- Non-Polarity Digital Inputs: Accepts non-polarity input voltage ranges from 5 V to 24 V DC (standard) or up to 50 V DC for the high input range (HIR) version.
- Interrupt Support: Two external interrupt sources (DI channel 0 and DI channel 1) for event-driven control.
- Opto-22 Compatibility: Compatible with Opto-22 standard digital I/O modules and terminal boards.
- High Reliability: Optical isolation and robust design ensure long-term stability in noisy industrial environments.
- Software Support: Comprehensive driver and SDK support for Windows and Linux, including LabVIEW®, MATLAB®, C/C++, Visual Basic, and Visual Studio.NET.
- Form Factor: Standard 32-bit 5 V PCI bus interface, plug-and-play compliant with PCI specification Rev. 2.1.
- Utility Software: Includes AD-Logger for data monitoring and logging.

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### 3. Technical Specifications

Physical Dimensions:
- 156 mm (L) × 106 mm (H) (6.08" × 4.13")
- Compact PCI form factor for standard PC chassis installation

Weight: Approx. 200 g (typical, excluding accessories)

Connector Type:
- 100-pin SCSI-II female connector (AMP-787082-9 compatible)

Operating Environment:
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -20°C to 80°C (-4°F to 176°F)
- Relative Humidity: 5% to 95%, non-condensing

Power Requirements:
- +5 V DC @ 530 mA typical
- +12 V DC @ 150 mA typical
- +3.3 V DC @ 36.6 mA typical

Isolation Voltage:
- 2500 V RMS channel-to-system isolation

Input Resistance:
- 2.4 kΩ @ 0.5 W (standard input range)
- 4.7 kΩ @ 0.5 W (high input range version)

Output Type:
- Open collector Darlington transistor array (ULN2803A)
- Sink current: 500 mA max per channel @ 24 V DC
- Supply voltage range: 5 V to 35 V DC

Power Dissipation:
- Max. 2.25 W per chip (8 DO channels)

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### 4. Functionality

The PCI-7432 provides isolated digital input and output channels for interfacing with external devices such as sensors, switches, relays, and actuators. Each input channel is optically isolated to prevent ground loops and protect the host system from high-voltage transients. The output channels use open-collector Darlington transistors capable of sinking high currents, making them ideal for driving inductive loads.

Typical Use Cases:
- Industrial process control and monitoring
- Machine automation and robotics
- Data acquisition systems
- Event counting and frequency generation
- Relay and solenoid control
- Laboratory instrumentation and test automation

Compatibility:
- PCI bus (32-bit, 5 V signaling)
- Opto-22-compatible terminal boards and accessories
- Supported operating systems: Windows 7/8.1 (x86/x64), Linux

Software Integration:
- Drivers and SDKs for LabVIEW®, MATLAB®, C/C++, Visual Basic, and .NET environments
- AD-Logger utility for real-time data acquisition and logging

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### 5. Components & Accessories

Included Items:
- PCI-7432 board
- ADLINK software CD (drivers, SDKs, utilities)
- User’s manual and installation guide

Optional Accessories:
- DIN-100S-01: Terminal board with one 100-pin SCSI-II connector and DIN-rail mounting
- ACL-102100-1: 100-pin SCSI-II cable (1 m length, AMP-787082-9 compatible)
- Legacy Replacement: DIN-502S can be replaced by two DIN-50S-01 boards and one ACL-10252-1 (100-pin to dual 50-pin cable, 1 m)

Connector Pinout:
- 100-pin SCSI-II female connector provides access to all 32 DI and 32 DO channels, grouped in 8-channel banks with common VDD and ground pins.
- Pin assignments follow Opto-22 conventions for easy integration with existing terminal boards.

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### 6. Installation & Setup

System Requirements:
- Available 32-bit PCI slot (5 V signaling)
- Compatible PC or industrial computer running Windows or Linux

Installation Procedure:
1. Power off the host system and disconnect all peripherals.
2. Insert the PCI-7432 card into an available PCI slot.
3. Secure the card with the chassis screw.
4. Connect the external I/O devices via the 100-pin SCSI-II connector.
5. Power on the system; the BIOS automatically assigns resources (I/O address and IRQ).
6. Install the ADLINK driver and software from the included CD or website.

Configuration:
- Plug-and-play PCI configuration (no manual address or IRQ setup required).
- Interrupt sources can be enabled on DI channel 0 and DI channel 1.
- Software utilities allow testing and verification of I/O functionality.

Mounting Options:
- Standard PCI slot installation in desktop or industrial PC chassis.
- DIN-rail mounting available via optional terminal board (DIN-100S-01).

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### 7. Performance & Capabilities

Digital Input Performance:
- Channels: 32 isolated inputs
- Input Voltage Range: 5–24 V DC (standard), 12–50 V DC (HIR version)
- Input Logic Levels:
- Logic High: 5–24 V (standard) / 12–50 V (HIR)
- Logic Low: 0–1.3 V (standard) / 0–2 V (HIR)
- Input Resistance: 2.4 kΩ (standard) / 4.7 kΩ (HIR)
- Throughput: 10 kHz (0.1 ms response time)
- Interrupt Sources: DI channel 0 and DI channel 1

Digital Output Performance:
- Channels: 32 isolated outputs
- Output Type: Open collector Darlington transistor
- Sink Current:
- Single channel ON: 500 mA @ 24 V
- All channels ON: 120 mA @ 24 V
- Output Voltage Range: 5–35 V DC
- Power Dissipation: 2.25 W per chip (8 channels)
- Isolation Voltage: 2500 V RMS
- Data Transfer Mode: Programmed I/O

Limitations:
- No hardware counter/timer functions (digital I/O only)
- Limited to 10 kHz switching frequency
- Requires external power supply for inductive loads

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### 8. Standards & Compliance

Bus Interface Standards:
- PCI Local Bus Specification Rev. 2.1 compliant
- 32-bit, 5 V signaling

Form Factor:
- Standard PCI card (156 mm × 106 mm)

Isolation & Safety:
- Optical isolation: 2500 V RMS (channel-to-system)
- Overvoltage protection up to 24 V DC (standard) or 50 V DC (HIR)

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

Industry Standards:
- Opto-22 compatibility for terminal connections
- CompactPCI and PCI Express variants available for system integration

Regulatory Compliance:
- CE and FCC Class A (industrial environment)
- RoHS compliant

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### 9. Additional Information

Warranty:
- Two-year limited warranty from date of shipment
- Covers manufacturing defects and component failures under normal use
- Excludes damage from misuse, improper installation, or environmental factors

Technical Support:
- Email: service@adlinktech.com
- Automation Products: automation@adlinktech.com
- NuDAQ/NuIPC Support: nudaq@adlinktech.com
- Phone: +886-2-82265877
- Fax: +886-2-82265717
- Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan

Maintenance:
- Periodic inspection of connectors and cables recommended
- Avoid exposure to excessive humidity or dust
- Use anti-static precautions during handling

Software Updates & Drivers:
- Available from ADLINK’s official website
- Includes PCIS-DASK driver package, LabVIEW® VIs, and sample code
- Supports Windows 7/8.1 (x86/x64) and Linux

Documentation & Resources:
- User’s Manual (Rev. 3.34, Part No. 50-11108-202)
- Software Installation Guide
- C/C++ Library Reference
- LabVIEW® and MATLAB® integration guides

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### Summary

The ADLINK PCI-7432 is a robust, high-performance isolated digital I/O card designed for industrial automation, data acquisition, and control applications. With 32 isolated digital inputs and 32 isolated digital outputs, 2500 V RMS optical isolation, and high current drive capability, it provides reliable interfacing between control systems and external devices. Its compatibility with Opto-22 terminal boards, comprehensive software support, and plug-and-play PCI configuration make it an ideal choice for engineers and system integrators seeking a dependable digital I/O solution for PC-based control systems.