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- High Channel Density: 64 isolated digital input channels, enabling large-scale signal acquisition within a single expansion slot.
- Optical Isolation: Each input channel is optically isolated, providing up to 3.5 kV isolation protection between field signals and the host system, safeguarding against voltage surges and ground loops.
- Wide Input Voltage Range: Accepts digital input signals from 5 VDC to 24 VDC, compatible with a wide variety of industrial sensors, switches, and logic-level devices.
- Selectable Power Source: Supports both internal and external power supply configurations, allowing flexible integration into different system architectures.
- ISA/AT Bus Interface: Designed for legacy and industrial PC systems using the AT (ISA) bus standard, ensuring compatibility with existing control platforms.
- Interrupt Support: Configurable interrupt request (IRQ) lines from IRQ2 to IRQ15, enabling event-driven data acquisition and efficient CPU utilization.
- Compact Half-Size Form Factor: Fits into standard half-size ISA slots, optimizing space utilization in control cabinets or embedded PC systems.
- Dual Connector Interface: Equipped with one D-sub connector and one flat cable connector for flexible wiring and easy integration with external terminal boards or signal conditioning modules.
- Industrial-Grade Design: Rugged construction and high isolation make it suitable for harsh industrial environments with electrical noise, vibration, or temperature variations.
- Optical Isolation: Each input channel is optically isolated, providing up to 3.5 kV isolation protection between field signals and the host system, safeguarding against voltage surges and ground loops.
- Wide Input Voltage Range: Accepts digital input signals from 5 VDC to 24 VDC, compatible with a wide variety of industrial sensors, switches, and logic-level devices.
- Selectable Power Source: Supports both internal and external power supply configurations, allowing flexible integration into different system architectures.
- ISA/AT Bus Interface: Designed for legacy and industrial PC systems using the AT (ISA) bus standard, ensuring compatibility with existing control platforms.
- Interrupt Support: Configurable interrupt request (IRQ) lines from IRQ2 to IRQ15, enabling event-driven data acquisition and efficient CPU utilization.
- Compact Half-Size Form Factor: Fits into standard half-size ISA slots, optimizing space utilization in control cabinets or embedded PC systems.
- Dual Connector Interface: Equipped with one D-sub connector and one flat cable connector for flexible wiring and easy integration with external terminal boards or signal conditioning modules.
- Industrial-Grade Design: Rugged construction and high isolation make it suitable for harsh industrial environments with electrical noise, vibration, or temperature variations.
1. Product Overview
Product Name: Isolated 64 Digital Input AT Card
Model: AX5064I
Series: AX5000 Series Digital I/O Interface Cards
Article Number: AX5064I
Manufacturer: Axiom
The Axiom AX5064I is a high-density, isolated digital input (DI) interface card designed for industrial automation, control, and monitoring systems. It provides 64 optically isolated digital input channels, supporting input voltages from 5 VDC to 24 VDC. The card is built on the AT/ISA bus architecture and is engineered for robust performance in electrically noisy environments. With its selectable internal or external power supply configuration and high isolation voltage rating of up to 3.5 kV, the AX5064I ensures reliable signal integrity and protection for both the host system and connected field devices.
2. Key Features
- High Channel Density: 64 isolated digital input channels, enabling large-scale signal acquisition within a single expansion slot.
- Optical Isolation: Each input channel is optically isolated, providing up to 3.5 kV isolation protection between field signals and the host system, safeguarding against voltage surges and ground loops.
- Wide Input Voltage Range: Accepts digital input signals from 5 VDC to 24 VDC, compatible with a wide variety of industrial sensors, switches, and logic-level devices.
- Selectable Power Source: Supports both internal and external power supply configurations, allowing flexible integration into different system architectures.
- ISA/AT Bus Interface: Designed for legacy and industrial PC systems using the AT (ISA) bus standard, ensuring compatibility with existing control platforms.
- Interrupt Support: Configurable interrupt request (IRQ) lines from IRQ2 to IRQ15, enabling event-driven data acquisition and efficient CPU utilization.
- Compact Half-Size Form Factor: Fits into standard half-size ISA slots, optimizing space utilization in control cabinets or embedded PC systems.
- Dual Connector Interface: Equipped with one D-sub connector and one flat cable connector for flexible wiring and easy integration with external terminal boards or signal conditioning modules.
- Industrial-Grade Design: Rugged construction and high isolation make it suitable for harsh industrial environments with electrical noise, vibration, or temperature variations.
3. Technical Specifications
- Bus Interface: AT/ISA bus
- Number of Channels: 64 digital input channels
- Input Type: Isolated digital inputs
- Input Voltage Range: 5 VDC to 24 VDC
- Isolation Voltage: Up to 3.5 kV (channel-to-system isolation)
- Input Logic Levels:
- Logic “0”: typically < 0.8 V
- Logic “1”: typically > 2.0 V (within 5–24 V range)
- Input Current: Typically 2–10 mA per channel (depending on input voltage)
- Power Supply Options:
- Internal power (from PC bus)
- External power (user-supplied 5–24 VDC)
- Interrupt Lines: Selectable IRQ2–IRQ15
- Connectors:
- 1 × D-sub connector (for field wiring or breakout connection)
- 1 × flat cable connector (for ribbon cable or terminal board connection)
- Form Factor: Half-size ISA card
- Dimensions (approx.): 185 mm (L) × 100 mm (H) × 20 mm (W)
- Weight: Approximately 200 g
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: –20 °C to +85 °C
- Relative Humidity: 5 % to 95 % non-condensing
- Isolation Method: Optocoupler-based isolation per channel
- Signal Connector Type: 37-pin D-sub (female) and 40-pin flat cable header
- Power Consumption: Typically < 5 W (depending on configuration)
4. Functionality
The AX5064I functions as an isolated digital input interface card for PC-based control systems. It connects to the AT/ISA bus and provides 64 independent input channels for monitoring digital signals from field devices such as sensors, switches, relays, and logic controllers.
Each input channel is optically isolated, meaning that the electrical signal from the field device is converted into an optical signal before being transmitted to the PC side. This isolation prevents electrical noise, surges, or ground potential differences from damaging the host system.
The card can be configured to use either the internal PC power supply or an external power source for the input circuits. This flexibility allows integration into systems with different grounding schemes or voltage requirements.
Typical Use Cases:
- Industrial automation and process control systems
- Machine monitoring and status acquisition
- Building management and facility control
- Data logging and event monitoring applications
- Laboratory and test equipment interfacing
- Legacy system upgrades requiring ISA-based I/O expansion
Compatibility:
- Compatible with AT/ISA bus industrial PCs and embedded controllers
- Works with Axiom’s software drivers and SDKs for DOS, Windows, or Linux (depending on system support)
- Can interface with external terminal boards or signal conditioning modules via the D-sub or flat cable connectors
5. Components & Accessories
Included Items:
- AX5064I isolated 64-channel digital input card
- User manual or quick installation guide
- Driver and utility software (if applicable)
- Mounting screws for securing the card in the ISA slot
Optional Accessories:
- External terminal boards for easy field wiring (e.g., Axiom TB-37 or TB-40 series)
- Flat ribbon cables for connection between the card and terminal boards
- D-sub to screw terminal adapters
- External power supply (5–24 VDC) for isolated input circuits
- Shielded cables for noise-sensitive environments
Connectors:
- D-sub Connector: Provides a robust interface for field wiring; typically used for direct connection to external devices or terminal blocks.
- Flat Cable Connector: Allows connection to ribbon cables for compact wiring or integration with backplane-mounted terminal boards.
6. Installation & Setup
System Requirements:
- PC or industrial computer with an available ISA (AT) expansion slot
- Operating system supporting ISA-based I/O (e.g., DOS, Windows 95/98/NT, or compatible industrial OS)
- Optional external power supply (5–24 VDC) if external power mode is selected
Installation Steps:
1. Power off the host computer and disconnect it from the power source.
2. Remove the system cover and locate an available ISA slot.
3. Insert the AX5064I card firmly into the slot, ensuring proper alignment with the bus connector.
4. Secure the card using the provided mounting screw.
5. Connect field wiring to the D-sub or flat cable connector as required.
6. If using external power, connect the external 5–24 VDC supply to the designated terminals.
7. Configure the IRQ line (IRQ2–IRQ15) via jumpers or DIP switches according to system requirements.
8. Replace the system cover, power on the computer, and install the necessary drivers or software utilities.
Configuration:
- Jumper settings allow selection between internal and external power modes.
- IRQ selection jumpers define which interrupt line the card uses for event-driven input monitoring.
- Software configuration may include channel mapping, debounce settings, and input polling intervals (depending on driver support).
Mounting Options:
- Standard half-size ISA slot mounting inside a PC chassis
- Can be used in rack-mounted or embedded industrial PCs with ISA backplanes
7. Performance & Capabilities
Speed and Response:
- Typical input response time: < 10 µs per channel
- Capable of high-speed digital input sampling suitable for real-time monitoring applications
Capacity:
- 64 independent input channels allow simultaneous monitoring of multiple devices or sensors.
- Each channel operates independently, enabling flexible signal grouping and logical mapping.
Efficiency:
- Optical isolation minimizes signal interference and ensures stable operation in noisy environments.
- Low power consumption reduces system load and heat generation.
Limitations:
- ISA bus interface limits compatibility with modern PCI/PCIe-only systems (requires legacy or industrial PC platforms).
- Digital input only—no output or analog functionality.
- Input voltage limited to 24 VDC maximum; not suitable for higher-voltage industrial signals without external conditioning.
Reliability:
- Designed for continuous 24/7 operation in industrial environments.
- High isolation voltage (3.5 kV) ensures long-term protection against transient surges.
8. Standards & Compliance
- Bus Standard: Complies with AT/ISA bus electrical and mechanical specifications.
- Isolation Standard: Meets industrial-grade isolation requirements up to 3.5 kV.
- Safety & EMC Compliance:
- Designed to meet CE and FCC Class A requirements for electromagnetic compatibility (typical for industrial I/O cards).
- RoHS-compliant materials and manufacturing processes (lead-free construction).
- Quality Assurance: Manufactured under ISO 9001-certified quality management systems.
- Environmental Compliance: Conforms to RoHS and WEEE directives for hazardous substance reduction and recyclability.
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 1–2 years, depending on region and distributor).
- Covers defects in materials and workmanship under normal operating conditions.
Technical Support:
- Axiom provides technical documentation, driver downloads, and software utilities through its support portal.
- Engineering support available for integration, troubleshooting, and system configuration.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and wiring recommended.
- Ensure proper grounding and shielding to maintain isolation integrity.
- Keep the card free from dust and contaminants to prevent contact degradation.
Firmware & Software Updates:
- Driver and utility updates available from Axiom’s website.
- Compatible with standard programming interfaces for digital I/O control (depending on OS and driver support).
Lifecycle & Availability:
- Long-term availability for industrial and embedded applications.
- Backward-compatible with previous Axiom digital I/O cards in the AX5000 series.
Summary:
The Axiom AX5064I Isolated 64 Digital Input AT Card is a robust, high-density digital input solution for industrial and embedded control systems requiring reliable signal acquisition and electrical isolation. Its 64 optically isolated channels, wide input voltage range (5–24 VDC), and 3.5 kV isolation rating make it ideal for monitoring a large number of field signals in demanding environments. With selectable internal/external power, configurable IRQ lines, and dual connector options, the AX5064I offers flexibility, durability, and compatibility with legacy ISA-based systems. It is a proven choice for engineers and system integrators seeking dependable digital input expansion in industrial automation, process control, and data acquisition applications.
Product Name: Isolated 64 Digital Input AT Card
Model: AX5064I
Series: AX5000 Series Digital I/O Interface Cards
Article Number: AX5064I
Manufacturer: Axiom
The Axiom AX5064I is a high-density, isolated digital input (DI) interface card designed for industrial automation, control, and monitoring systems. It provides 64 optically isolated digital input channels, supporting input voltages from 5 VDC to 24 VDC. The card is built on the AT/ISA bus architecture and is engineered for robust performance in electrically noisy environments. With its selectable internal or external power supply configuration and high isolation voltage rating of up to 3.5 kV, the AX5064I ensures reliable signal integrity and protection for both the host system and connected field devices.
2. Key Features
- High Channel Density: 64 isolated digital input channels, enabling large-scale signal acquisition within a single expansion slot.
- Optical Isolation: Each input channel is optically isolated, providing up to 3.5 kV isolation protection between field signals and the host system, safeguarding against voltage surges and ground loops.
- Wide Input Voltage Range: Accepts digital input signals from 5 VDC to 24 VDC, compatible with a wide variety of industrial sensors, switches, and logic-level devices.
- Selectable Power Source: Supports both internal and external power supply configurations, allowing flexible integration into different system architectures.
- ISA/AT Bus Interface: Designed for legacy and industrial PC systems using the AT (ISA) bus standard, ensuring compatibility with existing control platforms.
- Interrupt Support: Configurable interrupt request (IRQ) lines from IRQ2 to IRQ15, enabling event-driven data acquisition and efficient CPU utilization.
- Compact Half-Size Form Factor: Fits into standard half-size ISA slots, optimizing space utilization in control cabinets or embedded PC systems.
- Dual Connector Interface: Equipped with one D-sub connector and one flat cable connector for flexible wiring and easy integration with external terminal boards or signal conditioning modules.
- Industrial-Grade Design: Rugged construction and high isolation make it suitable for harsh industrial environments with electrical noise, vibration, or temperature variations.
3. Technical Specifications
- Bus Interface: AT/ISA bus
- Number of Channels: 64 digital input channels
- Input Type: Isolated digital inputs
- Input Voltage Range: 5 VDC to 24 VDC
- Isolation Voltage: Up to 3.5 kV (channel-to-system isolation)
- Input Logic Levels:
- Logic “0”: typically < 0.8 V
- Logic “1”: typically > 2.0 V (within 5–24 V range)
- Input Current: Typically 2–10 mA per channel (depending on input voltage)
- Power Supply Options:
- Internal power (from PC bus)
- External power (user-supplied 5–24 VDC)
- Interrupt Lines: Selectable IRQ2–IRQ15
- Connectors:
- 1 × D-sub connector (for field wiring or breakout connection)
- 1 × flat cable connector (for ribbon cable or terminal board connection)
- Form Factor: Half-size ISA card
- Dimensions (approx.): 185 mm (L) × 100 mm (H) × 20 mm (W)
- Weight: Approximately 200 g
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: –20 °C to +85 °C
- Relative Humidity: 5 % to 95 % non-condensing
- Isolation Method: Optocoupler-based isolation per channel
- Signal Connector Type: 37-pin D-sub (female) and 40-pin flat cable header
- Power Consumption: Typically < 5 W (depending on configuration)
4. Functionality
The AX5064I functions as an isolated digital input interface card for PC-based control systems. It connects to the AT/ISA bus and provides 64 independent input channels for monitoring digital signals from field devices such as sensors, switches, relays, and logic controllers.
Each input channel is optically isolated, meaning that the electrical signal from the field device is converted into an optical signal before being transmitted to the PC side. This isolation prevents electrical noise, surges, or ground potential differences from damaging the host system.
The card can be configured to use either the internal PC power supply or an external power source for the input circuits. This flexibility allows integration into systems with different grounding schemes or voltage requirements.
Typical Use Cases:
- Industrial automation and process control systems
- Machine monitoring and status acquisition
- Building management and facility control
- Data logging and event monitoring applications
- Laboratory and test equipment interfacing
- Legacy system upgrades requiring ISA-based I/O expansion
Compatibility:
- Compatible with AT/ISA bus industrial PCs and embedded controllers
- Works with Axiom’s software drivers and SDKs for DOS, Windows, or Linux (depending on system support)
- Can interface with external terminal boards or signal conditioning modules via the D-sub or flat cable connectors
5. Components & Accessories
Included Items:
- AX5064I isolated 64-channel digital input card
- User manual or quick installation guide
- Driver and utility software (if applicable)
- Mounting screws for securing the card in the ISA slot
Optional Accessories:
- External terminal boards for easy field wiring (e.g., Axiom TB-37 or TB-40 series)
- Flat ribbon cables for connection between the card and terminal boards
- D-sub to screw terminal adapters
- External power supply (5–24 VDC) for isolated input circuits
- Shielded cables for noise-sensitive environments
Connectors:
- D-sub Connector: Provides a robust interface for field wiring; typically used for direct connection to external devices or terminal blocks.
- Flat Cable Connector: Allows connection to ribbon cables for compact wiring or integration with backplane-mounted terminal boards.
6. Installation & Setup
System Requirements:
- PC or industrial computer with an available ISA (AT) expansion slot
- Operating system supporting ISA-based I/O (e.g., DOS, Windows 95/98/NT, or compatible industrial OS)
- Optional external power supply (5–24 VDC) if external power mode is selected
Installation Steps:
1. Power off the host computer and disconnect it from the power source.
2. Remove the system cover and locate an available ISA slot.
3. Insert the AX5064I card firmly into the slot, ensuring proper alignment with the bus connector.
4. Secure the card using the provided mounting screw.
5. Connect field wiring to the D-sub or flat cable connector as required.
6. If using external power, connect the external 5–24 VDC supply to the designated terminals.
7. Configure the IRQ line (IRQ2–IRQ15) via jumpers or DIP switches according to system requirements.
8. Replace the system cover, power on the computer, and install the necessary drivers or software utilities.
Configuration:
- Jumper settings allow selection between internal and external power modes.
- IRQ selection jumpers define which interrupt line the card uses for event-driven input monitoring.
- Software configuration may include channel mapping, debounce settings, and input polling intervals (depending on driver support).
Mounting Options:
- Standard half-size ISA slot mounting inside a PC chassis
- Can be used in rack-mounted or embedded industrial PCs with ISA backplanes
7. Performance & Capabilities
Speed and Response:
- Typical input response time: < 10 µs per channel
- Capable of high-speed digital input sampling suitable for real-time monitoring applications
Capacity:
- 64 independent input channels allow simultaneous monitoring of multiple devices or sensors.
- Each channel operates independently, enabling flexible signal grouping and logical mapping.
Efficiency:
- Optical isolation minimizes signal interference and ensures stable operation in noisy environments.
- Low power consumption reduces system load and heat generation.
Limitations:
- ISA bus interface limits compatibility with modern PCI/PCIe-only systems (requires legacy or industrial PC platforms).
- Digital input only—no output or analog functionality.
- Input voltage limited to 24 VDC maximum; not suitable for higher-voltage industrial signals without external conditioning.
Reliability:
- Designed for continuous 24/7 operation in industrial environments.
- High isolation voltage (3.5 kV) ensures long-term protection against transient surges.
8. Standards & Compliance
- Bus Standard: Complies with AT/ISA bus electrical and mechanical specifications.
- Isolation Standard: Meets industrial-grade isolation requirements up to 3.5 kV.
- Safety & EMC Compliance:
- Designed to meet CE and FCC Class A requirements for electromagnetic compatibility (typical for industrial I/O cards).
- RoHS-compliant materials and manufacturing processes (lead-free construction).
- Quality Assurance: Manufactured under ISO 9001-certified quality management systems.
- Environmental Compliance: Conforms to RoHS and WEEE directives for hazardous substance reduction and recyclability.
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 1–2 years, depending on region and distributor).
- Covers defects in materials and workmanship under normal operating conditions.
Technical Support:
- Axiom provides technical documentation, driver downloads, and software utilities through its support portal.
- Engineering support available for integration, troubleshooting, and system configuration.
Maintenance:
- Minimal maintenance required; periodic inspection of connectors and wiring recommended.
- Ensure proper grounding and shielding to maintain isolation integrity.
- Keep the card free from dust and contaminants to prevent contact degradation.
Firmware & Software Updates:
- Driver and utility updates available from Axiom’s website.
- Compatible with standard programming interfaces for digital I/O control (depending on OS and driver support).
Lifecycle & Availability:
- Long-term availability for industrial and embedded applications.
- Backward-compatible with previous Axiom digital I/O cards in the AX5000 series.
Summary:
The Axiom AX5064I Isolated 64 Digital Input AT Card is a robust, high-density digital input solution for industrial and embedded control systems requiring reliable signal acquisition and electrical isolation. Its 64 optically isolated channels, wide input voltage range (5–24 VDC), and 3.5 kV isolation rating make it ideal for monitoring a large number of field signals in demanding environments. With selectable internal/external power, configurable IRQ lines, and dual connector options, the AX5064I offers flexibility, durability, and compatibility with legacy ISA-based systems. It is a proven choice for engineers and system integrators seeking dependable digital input expansion in industrial automation, process control, and data acquisition applications.
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