Comprehensive Product Summary – ADLINK RTV‑I4 4‑Channel GPIO Extension Board

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### 1. Product Overview

Product Name: RTV‑I4
Model: RTV‑I4
Series: Angelo / RTV Series Frame Grabber Accessories
Article Number: RTV‑I4
Manufacturer: ADLINK Technology Inc.
Associated Mainboard: RTV‑24 Real‑Time Video Frame Grabber
Part Number (Manual Reference): 50‑12419‑001
Revision: Manual Rev. 1.00, March 31, 2003
Manufacturer Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan
Website: [www.adlinktech.com](http://www.adlinktech.com)

The ADLINK RTV‑I4 is a four‑channel isolated General Purpose Input/Output (GPIO) extension board designed specifically for the RTV‑24 frame grabber in the Angelo series. It expands the digital I/O capabilities of the base frame grabber, providing additional isolated channels for external control, triggering, and signal monitoring in real‑time video acquisition systems.

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### 2. Key Features

- Four Isolated GPIO Channels: Provides four independent, optically isolated digital I/O channels for enhanced signal integrity and protection against electrical noise and surges.
- Seamless Integration with RTV‑24: Designed as a plug‑in extension board for the ADLINK RTV‑24 frame grabber, extending its I/O functionality without additional interface hardware.
- TTL‑Compatible Logic Levels: Supports standard 5 V TTL logic for compatibility with a wide range of industrial sensors, actuators, and control devices.
- Bidirectional Configuration: Each GPIO line can be configured as input or output, allowing flexible control and monitoring setups.
- Electrostatic and Overload Protection: Built‑in protection circuitry ensures reliable operation in electrically noisy environments.
- Software‑Configurable I/O: Fully programmable through ADLINK’s ViewCreator utility and the AngeloRTV API library.
- Real‑Time Triggering Support: Enables hardware and software triggers for synchronized image capture and external event control.
- Compact Form Factor: Small, lightweight board designed for internal installation within PC‑based vision systems.
- Industrial Reliability: Designed for continuous operation in surveillance, machine vision, and automation environments.

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### 3. Technical Specifications

Electrical Characteristics (per GPIO line):
- Input High Voltage (5 µA): 2.0 V – 5.25 V
- Input Low Voltage (–5 µA): 0.0 V – 0.8 V
- Output High Voltage (–1.0 mA): 5.0 V
- Output Low Voltage (100 mA): –0.5 V
- Internal Pull‑Up: Enabled on all I/O lines

Interface:
- Two 10‑pin header connectors (CN8, CN9) for GPIO and trigger signals
- 10‑pin ribbon cable interface for connection to RTV‑24 mainboard

Channel Count:
- 4 isolated GPIO channels (configurable as input or output)
- 4 software‑trigger output lines

Trigger Output Timing:
- Programmable pulse width: 60 µs – 16 ms

EEPROM:
- 1 Kbit user‑programmable EEPROM for configuration storage

Form Factor:
- Compact PCI/PCI extension module (half‑size board)
- 32‑bit, 33/66 MHz PCI bus interface (via RTV‑24)

Environmental:
- Operating Temperature: 0 °C – 50 °C (typical)
- Storage Temperature: –20 °C – 70 °C
- Humidity: 5 % – 95 % non‑condensing

Mechanical:
- Dimensions: matches RTV‑24 half‑size PCI board footprint
- Weight: approximately 100 g (board only)
- Mounting: internal PCI slot or chassis bracket via RTV‑24

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### 4. Functionality

The RTV‑I4 functions as an isolated digital I/O expansion module for the ADLINK RTV‑24 frame grabber. It provides four additional GPIO channels that can be used for:

- External Triggering: Initiating image capture sequences from external sensors or controllers.
- Alarm Signaling: Sending or receiving alarm signals in surveillance or monitoring systems.
- Machine Control: Interfacing with actuators, relays, or PLCs in industrial automation.
- Status Monitoring: Reading digital states from external devices such as limit switches or motion sensors.
- Synchronized Acquisition: Coordinating multiple cameras or frame grabbers using hardware triggers.

The board connects directly to the RTV‑24 via a 10‑pin ribbon cable, extending the GPIO interface without additional power or bus connections. Each channel is software‑configurable through the AngeloRTV API, allowing developers to define input/output direction, trigger timing, and interrupt handling.

Compatibility:
- Fully compatible with ADLINK RTV‑24 frame grabber
- Supported under Windows 98/NT/2000/XP via WDM drivers
- Programmable using C/C++, Visual Basic, Delphi, and Borland C++ Builder
- Integrated with ADLINK’s ViewCreator utility for configuration and testing

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### 5. Components & Accessories

Included Components:
- RTV‑I4 4‑Channel GPIO Extension Board
- 10‑pin ribbon cable for connection to RTV‑24
- Mounting hardware (standoffs, screws)
- User manual and driver CD (included with RTV‑24 package)

Connectors:
- CN8 / CN9 GPIO Headers:
- IN0–IN3: External interrupt inputs
- OUT0–OUT3: Digital outputs
- Software Trigger 0–3: Programmable trigger outputs
- +5 V and GND pins for external reference

Optional Accessories:
- Additional ribbon cables for extended channel configurations
- Shielded enclosures for EMI protection
- External breakout boards for easier wiring

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### 6. Installation & Setup

System Requirements:
- Host PC with installed ADLINK RTV‑24 frame grabber
- Available internal space for extension board and ribbon cable routing
- Supported operating system: Windows 98/NT/2000/XP

Installation Steps:
1. Power off the PC and remove the cover.
2. Locate the RTV‑24 frame grabber installed in a PCI slot.
3. Connect the RTV‑I4 to the RTV‑24 using the supplied 10‑pin ribbon cable.
4. Secure the extension board using the provided mounting hardware.
5. Reassemble the PC and power on the system.
6. Install or update the ADLINK WDM driver if required.
7. Use the ViewCreator utility to verify GPIO functionality and configure I/O direction.

Configuration:
- I/O direction and trigger parameters are set via software using the AngeloRTV API.
- EEPROM can store user‑defined configuration data for persistent settings.
- Software triggers and watchdog functions are accessible through the same API used by the RTV‑24.

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### 7. Performance & Capabilities

Electrical Performance:
- Fast response time suitable for real‑time video synchronization.
- Trigger pulse width adjustable from 60 µs to 16 ms for precise timing control.
- Supports simultaneous multi‑channel triggering.
- Input and output lines capable of handling TTL‑level signals up to 5.25 V.

System Integration:
- Operates in conjunction with the RTV‑24’s four video channels, enabling synchronized acquisition and control.
- Supports up to 16 total video channels when combined with multiple RTV‑24 boards and extensions.
- Provides reliable digital interfacing for automation and vision systems requiring deterministic timing.

Limitations:
- Designed exclusively for use with ADLINK RTV‑24; not a standalone PCI device.
- Limited to TTL‑level signaling; external buffering required for higher‑voltage control.
- Software support limited to Windows platforms specified in the RTV‑24 driver package.

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### 8. Standards & Compliance

Electrical & Safety:
- TTL logic level compliance (5 V standard)
- ESD and overload protection on all I/O lines
- Designed for compliance with CE and FCC Class A industrial standards (via RTV‑24 system certification)

Software & Interface Standards:
- WDM driver architecture for Windows 98/NT/2000/XP
- API library compliant with standard C/C++ calling conventions
- Compatible with PCI 2.2 electrical specifications through RTV‑24 interface

Environmental & Quality:
- Manufactured under ISO 9001 quality management system
- RoHS compliance (for later production revisions)
- Designed for long‑term industrial operation

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### 9. Additional Information

Warranty:
- Two‑year limited warranty from date of shipment (per ADLINK standard policy)
- Covers defects in materials and workmanship under normal use
- Excludes damage from misuse, improper installation, or environmental factors

Technical Support:
- Email: service@adlink.com.tw
- Product‑specific support:
- NuDAQ: nudaq@adlink.com.tw
- NuDAM: nudam@adlink.com.tw
- NuIPC: nuipc@adlink.com.tw
- NuPRO: nupro@adlink.com.tw
- Software: sw@adlink.com.tw
- Telephone: +886‑2‑8226‑5877
- Fax: +886‑2‑8226‑5717

Maintenance:
- Periodic inspection of connectors and cables recommended
- Avoid exposure to high humidity or corrosive environments
- Firmware and driver updates available via ADLINK website

Software Tools:
- ViewCreator Utility: GUI‑based configuration and testing tool for video and GPIO functions.
- AngeloRTV API Library: Comprehensive programming interface supporting system initialization, configuration, image capture, GPIO control, EEPROM access, watchdog timer, and software triggers.

Programming Support:
- Languages: C/C++, Visual Basic, Delphi, Borland C++ Builder
- Example functions include:
- `AngeloRTV_Set_GPIO_Sts()` / `AngeloRTV_Get_GPIO_Sts()` for digital I/O control
- `AngeloRTV_Write_EEPROM()` / `AngeloRTV_Read_EEPROM()` for configuration storage
- `AngeloRTV_Trigger_Config()` / `AngeloRTV_Trigger_Start()` for trigger generation
- `AngeloRTV_Set_WDT()` for watchdog timer configuration

Use Cases:
- Surveillance Systems: Triggering alarms or recording events based on external sensor input.
- Machine Vision: Synchronizing camera capture with conveyor or robotic motion.
- Scientific Instrumentation: Coordinating data acquisition with experimental triggers.
- Medical Imaging: Controlling illumination or capture timing in diagnostic systems.

Support & Updates:
- Driver and software updates downloadable from ADLINK’s support portal.
- Firmware revisions periodically released to enhance stability and compatibility.
- RMA service available for defective units; customers must complete RMA form via ADLINK website.

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### Summary

The ADLINK RTV‑I4 4‑Channel GPIO Extension Board is a dedicated expansion module engineered to extend the digital I/O capabilities of the RTV‑24 real‑time video frame grabber. It provides four isolated, TTL‑compatible GPIO channels with programmable direction, trigger control, and EEPROM configuration storage. Designed for industrial and scientific imaging systems, the RTV‑I4 enables precise synchronization between video acquisition and external events, ensuring reliable operation in demanding environments such as surveillance, machine vision, and automation.

With robust electrical protection, flexible software control via the AngeloRTV API, and seamless integration into ADLINK’s Angelo series architecture, the RTV‑I4 delivers a dependable and scalable solution for developers and system integrators requiring advanced digital interfacing in PC‑based vision systems.