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AX5032IO

Isolated 64 DIO AT Card 32in 32out, 5..24VDC
  • Manufacturer Axiom
  • Category: DIO Isolated ISA
  • The Axiom AX5032IO is a high-performance, isolated digital input/output (DIO) interface card designed for industrial automation, control, and data acquisition systems. It is an AT/ISA bus-compatible half-size expansion card that provides a total of 64 digital channels—32 inputs and 32 outputs—engineered for robust, electrically isolated operation in demanding environments. The card supports a wide input voltage range of +5 to +24 VDC and features open-collector transistor outputs capable of driving up to 500 mA per channel.
- 64 Isolated Digital Channels: Provides 32 optically isolated digital inputs and 32 isolated open-collector digital outputs for flexible control and monitoring applications.
- Wide Voltage Range: Supports external power supply input from +5 VDC to +24 VDC, allowing compatibility with a variety of industrial logic levels and field devices.
- High Isolation Voltage: 3.5 kV isolation between field I/O and system logic ensures protection against transient voltages and electrical interference.
- High Output Drive Capability: Each output channel can sink up to 500 mA, suitable for driving relays, solenoids, lamps, and other actuators.
- Open-Collector Outputs: Provides flexible interfacing with external loads and allows for mixed-voltage operation across channels.
- Interrupt Support: Configurable interrupt request lines (IRQ2–IRQ15) enable event-driven operation and efficient CPU utilization.
- Compact Half-Size AT/ISA Form Factor: Fits standard PC/AT industrial computers and embedded control systems with limited space.
- Dual Connector Interface: Equipped with one D-sub connector and one flat cable connector for convenient wiring and integration.
- Industrial-Grade Design: Built for reliability in harsh environments, with robust isolation, noise immunity, and long-term operational stability.

Country of origin: Taiwan R.O.C.

Customs tariff number: 8473 3020 000

1. Product Overview
Product Name: AX5032IO
Model / Series: AX5000 Series – Isolated Digital I/O Interface Cards
Article Number: AX5032IO
Manufacturer: Axiom

The Axiom AX5032IO is a high-performance, isolated digital input/output (DIO) interface card designed for industrial automation, control, and data acquisition systems. It is an AT/ISA bus-compatible half-size expansion card that provides a total of 64 digital channels—32 inputs and 32 outputs—engineered for robust, electrically isolated operation in demanding environments. The card supports a wide input voltage range of +5 to +24 VDC and features open-collector transistor outputs capable of driving up to 500 mA per channel. With galvanic isolation up to 3.5 kV, the AX5032IO ensures reliable signal integrity and protection against electrical noise, surges, and ground potential differences.




2. Key Features
- 64 Isolated Digital Channels: Provides 32 optically isolated digital inputs and 32 isolated open-collector digital outputs for flexible control and monitoring applications.
- Wide Voltage Range: Supports external power supply input from +5 VDC to +24 VDC, allowing compatibility with a variety of industrial logic levels and field devices.
- High Isolation Voltage: 3.5 kV isolation between field I/O and system logic ensures protection against transient voltages and electrical interference.
- High Output Drive Capability: Each output channel can sink up to 500 mA, suitable for driving relays, solenoids, lamps, and other actuators.
- Open-Collector Outputs: Provides flexible interfacing with external loads and allows for mixed-voltage operation across channels.
- Interrupt Support: Configurable interrupt request lines (IRQ2–IRQ15) enable event-driven operation and efficient CPU utilization.
- Compact Half-Size AT/ISA Form Factor: Fits standard PC/AT industrial computers and embedded control systems with limited space.
- Dual Connector Interface: Equipped with one D-sub connector and one flat cable connector for convenient wiring and integration.
- Industrial-Grade Design: Built for reliability in harsh environments, with robust isolation, noise immunity, and long-term operational stability.




3. Technical Specifications
- Bus Interface: AT/ISA bus compatible
- Form Factor: Half-size ISA card
- Digital Inputs:
- Quantity: 32 channels
- Type: Optically isolated digital inputs
- Input Voltage Range: +5 VDC to +24 VDC
- Isolation Voltage: 3.5 kV (channel-to-system)
- Input Type: Current-sinking or sourcing (depending on wiring configuration)
- Digital Outputs:
- Quantity: 32 channels
- Type: Open-collector transistor outputs
- Output Voltage Range: +5 VDC to +24 VDC (external supply)
- Maximum Sink Current: 500 mA per channel
- Isolation Voltage: 3.5 kV (channel-to-system)
- Power Requirements:
- External Power Supply: +5 VDC to +24 VDC for field I/O
- Internal Power: +5 VDC from ISA bus for logic circuitry
- Connectors:
- 1 × D-sub connector (for I/O interface)
- 1 × flat cable connector (for extended I/O or auxiliary connection)
- Interrupt Lines: IRQ2 through IRQ15 selectable
- Isolation Method: Optical isolation between field and logic circuits
- Dimensions: Half-size AT card (approx. 185 mm × 100 mm typical)
- Weight: Approximately 200–250 g (depending on configuration)
- Operating Temperature: 0°C to +50°C (typical industrial range)
- Storage Temperature: -20°C to +70°C
- Humidity: 10% to 90% RH, non-condensing
- Mounting: Standard ISA slot mounting




4. Functionality
The AX5032IO functions as an isolated digital interface between a host computer and external control or monitoring equipment. It connects directly to the ISA bus of an industrial PC, providing 32 input channels for reading digital signals and 32 output channels for controlling external devices.

Operation:
- Input Function: Each input channel receives a digital signal from field devices such as sensors, switches, or limit detectors. The optical isolation circuitry converts these signals into logic-level inputs for the host system while protecting against voltage spikes and ground loops.
- Output Function: Each output channel uses an open-collector transistor to switch external loads. The external power supply (5–24 VDC) provides the necessary drive voltage, while the card’s transistor outputs sink current to activate connected devices such as relays, solenoids, or indicator lamps.
- Interrupt Handling: The card can generate interrupts on selected events, allowing the host CPU to respond immediately to input changes without continuous polling.
- Applications:
- Industrial automation and process control
- Machine monitoring and control systems
- Data acquisition and test systems
- PLC interfacing and supervisory control
- Laboratory instrumentation and signal monitoring
- Embedded control systems requiring isolated digital I/O

Compatibility:
- Compatible with standard AT/ISA bus industrial PCs
- Works with Axiom’s software drivers and SDKs for DOS, Windows, and Linux (depending on system configuration)
- Can interface with external terminal boards, relay modules, or custom wiring harnesses via the D-sub and flat cable connectors




5. Components & Accessories
Included Items:
- AX5032IO half-size ISA card
- D-sub connector interface (onboard)
- Flat cable connector (onboard)
- User manual or quick installation guide (depending on package)

Optional Accessories:
- External terminal boards for easy field wiring
- Ribbon cable assemblies for flat cable connector
- D-sub breakout modules for screw terminal connections
- External power supply (5–24 VDC) if not provided by system
- Mounting brackets or retention clips for secure installation in industrial chassis

Connectors:
- D-sub Connector: Typically used for direct connection to external I/O modules or terminal blocks.
- Flat Cable Connector: Provides an alternative interface for ribbon cable connections, allowing flexible wiring configurations or expansion.




6. Installation & Setup
Requirements:
- Available ISA slot in host PC
- External power supply (5–24 VDC) for field I/O circuits
- Proper grounding and shielding for noise-sensitive environments

Installation Steps:
1. Power off the host system and disconnect it from mains power.
2. Insert the AX5032IO card into an available ISA slot, ensuring proper alignment and secure seating.
3. Connect the external power supply to the designated terminals or connector pins for field I/O voltage.
4. Attach the D-sub or flat cable connector to the external wiring harness or terminal board.
5. Configure the interrupt line (IRQ2–IRQ15) via onboard jumpers or DIP switches according to system requirements.
6. Power on the system and install any required drivers or software utilities provided by Axiom.
7. Verify operation using diagnostic tools or test applications to confirm input/output functionality.

Mounting Options:
- Standard horizontal mounting in PC chassis
- Optional retention bracket for vibration resistance in industrial environments

Configuration:
- IRQ selection via jumper settings
- Optional base address configuration (if applicable)
- External power voltage selection (5–24 VDC) depending on connected devices




7. Performance & Capabilities
Speed and Response:
- Fast digital input response suitable for real-time control applications
- Output switching speed determined by transistor characteristics and load conditions
- Interrupt-driven operation minimizes CPU overhead and enhances responsiveness

Capacity:
- 64 total digital channels (32 input + 32 output)
- Each output channel supports up to 500 mA sink current, allowing direct control of medium-power loads without external relays in many cases

Efficiency:
- Optical isolation reduces noise coupling and ensures reliable signal transmission
- Open-collector outputs allow flexible load configurations and efficient power distribution

Limitations:
- Limited to ISA bus systems (legacy interface)
- Output channels are current-sinking only (no sourcing capability)
- External power supply required for field I/O operation
- Not designed for analog signal processing or high-frequency PWM control




8. Standards & Compliance
- Electrical Isolation: 3.5 kV isolation rating compliant with industrial safety and EMC requirements
- Bus Standard: AT/ISA bus compatibility per PC/AT specifications
- Environmental Compliance: Designed for industrial temperature and humidity ranges
- Safety & EMC: Meets general industrial standards for electromagnetic compatibility and electrical safety (manufacturer-specific compliance details may apply)
- Quality Assurance: Manufactured under Axiom’s quality management system ensuring consistent performance and reliability




9. Additional Information
Warranty:
- Standard manufacturer warranty (typically 1–2 years, depending on region and distributor) covering defects in materials and workmanship

Support:
- Technical documentation, installation guides, and driver software available from Axiom’s support portal
- Application notes and sample code for integration with various operating systems and programming environments

Maintenance:
- Periodic inspection of connectors and cabling recommended
- Ensure proper ventilation and dust-free environment for long-term reliability
- No user-serviceable internal components; repairs should be performed by authorized service personnel

Firmware / Software Updates:
- Typically not required for hardware-only ISA cards
- Driver and utility updates may be available for supported operating systems

Lifecycle & Availability:
- Designed for long-term availability in industrial and embedded markets
- Backward-compatible with legacy Axiom DIO cards for system upgrades or replacements




Summary
The Axiom AX5032IO is a robust, isolated 64-channel digital I/O card engineered for industrial control and monitoring applications. With 32 optically isolated inputs and 32 open-collector outputs, it provides flexible interfacing between a host PC and external devices operating at 5–24 VDC. Its 3.5 kV isolation barrier ensures electrical safety and noise immunity, while each output channel’s 500 mA drive capacity supports direct control of a wide range of actuators. The card’s half-size ISA form factor, dual connector interface, and configurable interrupt lines make it a versatile solution for legacy and embedded industrial systems requiring reliable, high-density digital I/O.




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