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- High-Density I/O: Provides 144 digital input/output channels, enabling extensive signal interfacing within a single card footprint.
- 8255 Mode 0 Emulation: Fully emulates the Intel 8255 PPI in Mode 0, ensuring compatibility with existing systems and software designed for 8255-based I/O operations.
- TTL-Level I/O: All channels support standard TTL logic levels, making the card suitable for direct interfacing with a wide range of digital devices, sensors, and actuators.
- Interrupt Support: Supports IRQ2–IRQ7 for change-of-state detection, allowing the system to respond to input transitions efficiently without continuous polling.
- Multiple Connectors: Equipped with six 50-pin connectors, facilitating organized and scalable wiring to external devices or terminal boards.
- Cross-Platform Driver Support: Compatible with both Windows and Unix operating systems, with dedicated driver packages available for easy integration.
- Compact and Modular Design: The 339 mm × 122 mm form factor allows installation in standard industrial enclosures or PC-based control systems.
- Industrial Reliability: Designed for continuous operation in industrial environments, with robust electrical design and stable signal handling.
- 8255 Mode 0 Emulation: Fully emulates the Intel 8255 PPI in Mode 0, ensuring compatibility with existing systems and software designed for 8255-based I/O operations.
- TTL-Level I/O: All channels support standard TTL logic levels, making the card suitable for direct interfacing with a wide range of digital devices, sensors, and actuators.
- Interrupt Support: Supports IRQ2–IRQ7 for change-of-state detection, allowing the system to respond to input transitions efficiently without continuous polling.
- Multiple Connectors: Equipped with six 50-pin connectors, facilitating organized and scalable wiring to external devices or terminal boards.
- Cross-Platform Driver Support: Compatible with both Windows and Unix operating systems, with dedicated driver packages available for easy integration.
- Compact and Modular Design: The 339 mm × 122 mm form factor allows installation in standard industrial enclosures or PC-based control systems.
- Industrial Reliability: Designed for continuous operation in industrial environments, with robust electrical design and stable signal handling.
1. Product Overview
Product Name: 144 DIO Digital Input/Output Card
Model: AX5244
Series: AX5000 Series (Digital I/O Interface Cards)
Article Number: AX5244
Manufacturer: Axiom
The Axiom AX5244 is a high-density digital input/output (DIO) interface card designed for industrial automation, data acquisition, and embedded control systems. It provides 144 channels of TTL-compatible digital I/O and is engineered to emulate the functionality of the Intel 8255 Programmable Peripheral Interface (PPI) operating in Mode 0. This compatibility ensures seamless integration with legacy systems and software that rely on 8255-based I/O control logic. The AX5244 is built for robust performance in both Windows and Unix environments, offering flexible driver support and reliable operation in demanding industrial and laboratory applications.
2. Key Features
- High-Density I/O: Provides 144 digital input/output channels, enabling extensive signal interfacing within a single card footprint.
- 8255 Mode 0 Emulation: Fully emulates the Intel 8255 PPI in Mode 0, ensuring compatibility with existing systems and software designed for 8255-based I/O operations.
- TTL-Level I/O: All channels support standard TTL logic levels, making the card suitable for direct interfacing with a wide range of digital devices, sensors, and actuators.
- Interrupt Support: Supports IRQ2–IRQ7 for change-of-state detection, allowing the system to respond to input transitions efficiently without continuous polling.
- Multiple Connectors: Equipped with six 50-pin connectors, facilitating organized and scalable wiring to external devices or terminal boards.
- Cross-Platform Driver Support: Compatible with both Windows and Unix operating systems, with dedicated driver packages available for easy integration.
- Compact and Modular Design: The 339 mm × 122 mm form factor allows installation in standard industrial enclosures or PC-based control systems.
- Industrial Reliability: Designed for continuous operation in industrial environments, with robust electrical design and stable signal handling.
3. Technical Specifications
- Model: AX5244
- Type: Digital Input/Output (DIO) Interface Card
- Number of Channels: 144 digital I/O channels
- Logic Standard: TTL (Transistor-Transistor Logic)
- Emulation Mode: Intel 8255 Mode 0
- Interrupt Lines: IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 (change-of-state interrupt capability)
- Connectors: 6 × 50-pin connectors (standard ribbon or IDC type)
- Dimensions: 339 mm (length) × 122 mm (height)
- Weight: Approximately 0.5–0.7 kg (typical, depending on configuration and connectors)
- Bus Interface: Parallel digital I/O interface (emulated 8255 architecture)
- Signal Type: TTL-compatible input/output
- Input Voltage Levels: Logic high ≥ 2.0 V, logic low ≤ 0.8 V (typical TTL thresholds)
- Output Drive Capability: Source and sink current per channel typically ±8 mA (depending on TTL driver configuration)
- Operating Temperature Range: 0°C to +50°C (typical industrial operating range)
- Storage Temperature Range: -20°C to +70°C
- Humidity: 10%–90% RH, non-condensing
- Power Requirements: +5 V DC (supplied via system bus or external power source, depending on configuration)
- Mounting Type: Internal card installation (industrial PC or control chassis)
4. Functionality
The AX5244 functions as a high-capacity digital I/O interface card that provides direct access to 144 TTL-level digital lines. Each channel can be configured as either an input or output, depending on the application requirements. The card’s architecture emulates the Intel 8255 PPI in Mode 0, which is a simple input/output mode without handshaking. This makes it ideal for applications requiring straightforward digital control or monitoring.
Operation Principle:
- The card interfaces with the host system through a standard bus or control interface.
- Each of the 144 channels can be individually addressed and controlled via software.
- The 8255 Mode 0 emulation ensures that existing software written for 8255-based systems can operate the AX5244 without modification.
- Interrupt lines (IRQ2–IRQ7) can be configured to trigger on input state changes, allowing event-driven control.
- The six 50-pin connectors provide organized access to the I/O lines, simplifying wiring to external devices such as relays, sensors, switches, or LED indicators.
Use Cases and Applications:
- Industrial automation and process control systems
- Data acquisition and monitoring platforms
- Laboratory instrumentation and test benches
- Embedded control systems requiring high channel density
- Machine control and robotics
- Digital signal monitoring and event logging
- Legacy system upgrades where 8255 compatibility is required
Compatibility:
- Compatible with Windows and Unix operating systems
- Supported by Axiom’s driver packages and software development kits (SDKs)
- Can interface with standard digital I/O terminal boards, relay modules, and signal conditioning units
5. Components & Accessories
Included Items:
- AX5244 144-channel DIO card
- Driver software package (Windows and Unix versions)
- User manual and installation guide
- Configuration utility (for channel setup and testing)
Optional Accessories:
- 50-pin ribbon cables for external connection
- Terminal breakout boards for easy wiring access
- DIN-rail mounting kits (if used in industrial enclosures)
- External power supply (if required for isolated configurations)
- Shielded cable assemblies for noise-sensitive environments
Connectors:
- Six 50-pin connectors (IDC type) arranged for grouped channel access
- Each connector typically supports 24 digital I/O lines plus ground and control signals
- Pin assignments follow standard 8255-compatible mapping for ease of integration
6. Installation & Setup
Requirements:
- Compatible host system with available expansion slot or interface port
- +5 V DC power supply (from system bus or external source)
- Supported operating system (Windows or Unix)
- Administrative privileges for driver installation
Mounting Options:
- Internal installation within an industrial PC or control chassis
- Can be mounted in rack-based or panel-based systems using optional brackets
- Connectors positioned for front or side cable routing depending on enclosure design
Configuration Steps:
1. Power off the host system before installation.
2. Insert the AX5244 card into the designated slot or interface connector.
3. Secure the card using mounting screws or brackets.
4. Connect external devices to the six 50-pin connectors using appropriate cables.
5. Power on the system and install the Axiom driver package.
6. Use the configuration utility to assign I/O directions (input/output) and enable interrupts as needed.
7. Verify operation using test software or diagnostic tools provided by Axiom.
Software Setup:
- Install the appropriate driver for the operating system.
- Configure I/O mapping and interrupt settings via the provided utility.
- Integrate with application software using Axiom’s API or standard I/O libraries.
7. Performance & Capabilities
Speed and Throughput:
- High-speed digital I/O operation suitable for real-time control and monitoring.
- Typical I/O access times in the microsecond range, depending on host system performance.
- Interrupt-driven operation minimizes CPU load and enhances responsiveness.
Capacity:
- 144 independent digital channels provide extensive interfacing capability within a single card.
- Each channel can be individually configured, allowing flexible system design.
Efficiency:
- Emulation of 8255 Mode 0 ensures minimal software overhead and straightforward control logic.
- Efficient interrupt handling reduces latency in event-driven applications.
Limitations:
- TTL-level I/O only; not suitable for direct connection to high-voltage or high-current devices without external isolation or buffering.
- No analog input/output capability (digital-only interface).
- Mode 0 operation only (no handshake or bidirectional modes).
Reliability:
- Designed for continuous operation in industrial environments.
- Stable signal integrity across all channels due to robust PCB design and grounding.
8. Standards & Compliance
Certifications:
- Designed and manufactured in accordance with industrial electronic standards.
- Complies with CE and FCC Class A requirements for electromagnetic compatibility (EMC).
- RoHS-compliant materials and manufacturing processes.
Regulatory Compliance:
- Meets standard safety and environmental directives applicable to industrial control equipment.
- Conforms to ISO 9001 quality management standards in manufacturing.
Industry Standards:
- TTL logic level compatibility (IEEE standard logic thresholds).
- 8255 PPI functional emulation standard for digital I/O control.
- Compatible with standard 50-pin IDC connector pinouts used in industrial I/O systems.
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 1–2 years) covering defects in materials and workmanship.
- Extended warranty options available through Axiom authorized distributors.
Support:
- Technical support available via Axiom’s online portal, email, and phone.
- Comprehensive documentation including user manuals, driver installation guides, and programming references.
- Software updates and driver revisions provided periodically for supported operating systems.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and cables recommended.
- Ensure proper grounding and shielding in electrically noisy environments.
- Firmware and driver updates should be applied as released to maintain compatibility and performance.
Updates and Lifecycle:
- Ongoing driver support for current Windows and Unix versions.
- Backward compatibility maintained for legacy systems using 8255-based control logic.
- Long product lifecycle typical of Axiom industrial hardware, ensuring availability for extended system deployments.
Summary
The Axiom AX5244 144 DIO Card is a robust, high-density digital I/O solution designed for industrial and embedded control applications requiring extensive digital interfacing. With full 8255 Mode 0 emulation, 144 TTL-compatible channels, and support for IRQ2–IRQ7 interrupts, it provides a versatile platform for digital control, monitoring, and automation. Its six 50-pin connectors allow organized wiring, while cross-platform driver support ensures seamless integration with both Windows and Unix systems. Built to industrial standards, the AX5244 delivers reliable performance, long-term availability, and compatibility with a wide range of digital devices and legacy systems.
Product Name: 144 DIO Digital Input/Output Card
Model: AX5244
Series: AX5000 Series (Digital I/O Interface Cards)
Article Number: AX5244
Manufacturer: Axiom
The Axiom AX5244 is a high-density digital input/output (DIO) interface card designed for industrial automation, data acquisition, and embedded control systems. It provides 144 channels of TTL-compatible digital I/O and is engineered to emulate the functionality of the Intel 8255 Programmable Peripheral Interface (PPI) operating in Mode 0. This compatibility ensures seamless integration with legacy systems and software that rely on 8255-based I/O control logic. The AX5244 is built for robust performance in both Windows and Unix environments, offering flexible driver support and reliable operation in demanding industrial and laboratory applications.
2. Key Features
- High-Density I/O: Provides 144 digital input/output channels, enabling extensive signal interfacing within a single card footprint.
- 8255 Mode 0 Emulation: Fully emulates the Intel 8255 PPI in Mode 0, ensuring compatibility with existing systems and software designed for 8255-based I/O operations.
- TTL-Level I/O: All channels support standard TTL logic levels, making the card suitable for direct interfacing with a wide range of digital devices, sensors, and actuators.
- Interrupt Support: Supports IRQ2–IRQ7 for change-of-state detection, allowing the system to respond to input transitions efficiently without continuous polling.
- Multiple Connectors: Equipped with six 50-pin connectors, facilitating organized and scalable wiring to external devices or terminal boards.
- Cross-Platform Driver Support: Compatible with both Windows and Unix operating systems, with dedicated driver packages available for easy integration.
- Compact and Modular Design: The 339 mm × 122 mm form factor allows installation in standard industrial enclosures or PC-based control systems.
- Industrial Reliability: Designed for continuous operation in industrial environments, with robust electrical design and stable signal handling.
3. Technical Specifications
- Model: AX5244
- Type: Digital Input/Output (DIO) Interface Card
- Number of Channels: 144 digital I/O channels
- Logic Standard: TTL (Transistor-Transistor Logic)
- Emulation Mode: Intel 8255 Mode 0
- Interrupt Lines: IRQ2, IRQ3, IRQ4, IRQ5, IRQ6, IRQ7 (change-of-state interrupt capability)
- Connectors: 6 × 50-pin connectors (standard ribbon or IDC type)
- Dimensions: 339 mm (length) × 122 mm (height)
- Weight: Approximately 0.5–0.7 kg (typical, depending on configuration and connectors)
- Bus Interface: Parallel digital I/O interface (emulated 8255 architecture)
- Signal Type: TTL-compatible input/output
- Input Voltage Levels: Logic high ≥ 2.0 V, logic low ≤ 0.8 V (typical TTL thresholds)
- Output Drive Capability: Source and sink current per channel typically ±8 mA (depending on TTL driver configuration)
- Operating Temperature Range: 0°C to +50°C (typical industrial operating range)
- Storage Temperature Range: -20°C to +70°C
- Humidity: 10%–90% RH, non-condensing
- Power Requirements: +5 V DC (supplied via system bus or external power source, depending on configuration)
- Mounting Type: Internal card installation (industrial PC or control chassis)
4. Functionality
The AX5244 functions as a high-capacity digital I/O interface card that provides direct access to 144 TTL-level digital lines. Each channel can be configured as either an input or output, depending on the application requirements. The card’s architecture emulates the Intel 8255 PPI in Mode 0, which is a simple input/output mode without handshaking. This makes it ideal for applications requiring straightforward digital control or monitoring.
Operation Principle:
- The card interfaces with the host system through a standard bus or control interface.
- Each of the 144 channels can be individually addressed and controlled via software.
- The 8255 Mode 0 emulation ensures that existing software written for 8255-based systems can operate the AX5244 without modification.
- Interrupt lines (IRQ2–IRQ7) can be configured to trigger on input state changes, allowing event-driven control.
- The six 50-pin connectors provide organized access to the I/O lines, simplifying wiring to external devices such as relays, sensors, switches, or LED indicators.
Use Cases and Applications:
- Industrial automation and process control systems
- Data acquisition and monitoring platforms
- Laboratory instrumentation and test benches
- Embedded control systems requiring high channel density
- Machine control and robotics
- Digital signal monitoring and event logging
- Legacy system upgrades where 8255 compatibility is required
Compatibility:
- Compatible with Windows and Unix operating systems
- Supported by Axiom’s driver packages and software development kits (SDKs)
- Can interface with standard digital I/O terminal boards, relay modules, and signal conditioning units
5. Components & Accessories
Included Items:
- AX5244 144-channel DIO card
- Driver software package (Windows and Unix versions)
- User manual and installation guide
- Configuration utility (for channel setup and testing)
Optional Accessories:
- 50-pin ribbon cables for external connection
- Terminal breakout boards for easy wiring access
- DIN-rail mounting kits (if used in industrial enclosures)
- External power supply (if required for isolated configurations)
- Shielded cable assemblies for noise-sensitive environments
Connectors:
- Six 50-pin connectors (IDC type) arranged for grouped channel access
- Each connector typically supports 24 digital I/O lines plus ground and control signals
- Pin assignments follow standard 8255-compatible mapping for ease of integration
6. Installation & Setup
Requirements:
- Compatible host system with available expansion slot or interface port
- +5 V DC power supply (from system bus or external source)
- Supported operating system (Windows or Unix)
- Administrative privileges for driver installation
Mounting Options:
- Internal installation within an industrial PC or control chassis
- Can be mounted in rack-based or panel-based systems using optional brackets
- Connectors positioned for front or side cable routing depending on enclosure design
Configuration Steps:
1. Power off the host system before installation.
2. Insert the AX5244 card into the designated slot or interface connector.
3. Secure the card using mounting screws or brackets.
4. Connect external devices to the six 50-pin connectors using appropriate cables.
5. Power on the system and install the Axiom driver package.
6. Use the configuration utility to assign I/O directions (input/output) and enable interrupts as needed.
7. Verify operation using test software or diagnostic tools provided by Axiom.
Software Setup:
- Install the appropriate driver for the operating system.
- Configure I/O mapping and interrupt settings via the provided utility.
- Integrate with application software using Axiom’s API or standard I/O libraries.
7. Performance & Capabilities
Speed and Throughput:
- High-speed digital I/O operation suitable for real-time control and monitoring.
- Typical I/O access times in the microsecond range, depending on host system performance.
- Interrupt-driven operation minimizes CPU load and enhances responsiveness.
Capacity:
- 144 independent digital channels provide extensive interfacing capability within a single card.
- Each channel can be individually configured, allowing flexible system design.
Efficiency:
- Emulation of 8255 Mode 0 ensures minimal software overhead and straightforward control logic.
- Efficient interrupt handling reduces latency in event-driven applications.
Limitations:
- TTL-level I/O only; not suitable for direct connection to high-voltage or high-current devices without external isolation or buffering.
- No analog input/output capability (digital-only interface).
- Mode 0 operation only (no handshake or bidirectional modes).
Reliability:
- Designed for continuous operation in industrial environments.
- Stable signal integrity across all channels due to robust PCB design and grounding.
8. Standards & Compliance
Certifications:
- Designed and manufactured in accordance with industrial electronic standards.
- Complies with CE and FCC Class A requirements for electromagnetic compatibility (EMC).
- RoHS-compliant materials and manufacturing processes.
Regulatory Compliance:
- Meets standard safety and environmental directives applicable to industrial control equipment.
- Conforms to ISO 9001 quality management standards in manufacturing.
Industry Standards:
- TTL logic level compatibility (IEEE standard logic thresholds).
- 8255 PPI functional emulation standard for digital I/O control.
- Compatible with standard 50-pin IDC connector pinouts used in industrial I/O systems.
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 1–2 years) covering defects in materials and workmanship.
- Extended warranty options available through Axiom authorized distributors.
Support:
- Technical support available via Axiom’s online portal, email, and phone.
- Comprehensive documentation including user manuals, driver installation guides, and programming references.
- Software updates and driver revisions provided periodically for supported operating systems.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and cables recommended.
- Ensure proper grounding and shielding in electrically noisy environments.
- Firmware and driver updates should be applied as released to maintain compatibility and performance.
Updates and Lifecycle:
- Ongoing driver support for current Windows and Unix versions.
- Backward compatibility maintained for legacy systems using 8255-based control logic.
- Long product lifecycle typical of Axiom industrial hardware, ensuring availability for extended system deployments.
Summary
The Axiom AX5244 144 DIO Card is a robust, high-density digital I/O solution designed for industrial and embedded control applications requiring extensive digital interfacing. With full 8255 Mode 0 emulation, 144 TTL-compatible channels, and support for IRQ2–IRQ7 interrupts, it provides a versatile platform for digital control, monitoring, and automation. Its six 50-pin connectors allow organized wiring, while cross-platform driver support ensures seamless integration with both Windows and Unix systems. Built to industrial standards, the AX5244 delivers reliable performance, long-term availability, and compatibility with a wide range of digital devices and legacy systems.
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No accessories available.
