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- 48 Opto-Isolated Digital Inputs: Provides 48 independent digital input channels, each isolated from one another and from the system ground.
- Wide Input Voltage Range: Accepts both DC and AC signals from +5V to +24V, allowing flexible interfacing with a variety of sensors, switches, and control signals.
- High Isolation Voltage: Each channel is isolated up to 1 kV (channel-to-channel and channel-to-ground), ensuring robust protection against voltage transients, surges, and ground loops.
- Optocoupler Type: Utilizes PC814 optocouplers for reliable signal isolation and long operational life.
- Dual 50-Pin Connectors: Equipped with two 50-pin headers for convenient connection to external wiring harnesses, terminal boards, or backplanes.
- Industrial Form Factor: Compact PCB design with dimensions of 304 mm x 90 mm, suitable for installation in industrial PC chassis or custom enclosures.
- Flexible Signal Compatibility: Supports both logic-level and field-level digital signals, making it suitable for interfacing with PLCs, sensors, relays, and control panels.
- Noise Immunity: Opto-isolation and robust PCB layout minimize susceptibility to electromagnetic interference (EMI) and crosstalk.
- High Channel Density: Consolidates 48 input channels on a single card, reducing system footprint and simplifying wiring.
- Reliable Industrial Design: Built for continuous operation in demanding environments, with high-quality components and durable PCB construction.
- Wide Input Voltage Range: Accepts both DC and AC signals from +5V to +24V, allowing flexible interfacing with a variety of sensors, switches, and control signals.
- High Isolation Voltage: Each channel is isolated up to 1 kV (channel-to-channel and channel-to-ground), ensuring robust protection against voltage transients, surges, and ground loops.
- Optocoupler Type: Utilizes PC814 optocouplers for reliable signal isolation and long operational life.
- Dual 50-Pin Connectors: Equipped with two 50-pin headers for convenient connection to external wiring harnesses, terminal boards, or backplanes.
- Industrial Form Factor: Compact PCB design with dimensions of 304 mm x 90 mm, suitable for installation in industrial PC chassis or custom enclosures.
- Flexible Signal Compatibility: Supports both logic-level and field-level digital signals, making it suitable for interfacing with PLCs, sensors, relays, and control panels.
- Noise Immunity: Opto-isolation and robust PCB layout minimize susceptibility to electromagnetic interference (EMI) and crosstalk.
- High Channel Density: Consolidates 48 input channels on a single card, reducing system footprint and simplifying wiring.
- Reliable Industrial Design: Built for continuous operation in demanding environments, with high-quality components and durable PCB construction.
1. Product Overview
Product Name: AX5048i
Model: AX5048i
Series: AX5000 Series (Industrial I/O Interface Cards)
Article Number: AX5048i
Manufacturer: Axiom
The Axiom AX5048i is an industrial-grade opto-isolated digital input (DI) PC card designed for high-density signal acquisition and robust electrical isolation in automation, control, and monitoring systems. It provides 48 optically isolated digital input channels, each capable of handling both DC and AC input voltages ranging from +5V to +24V. The card is engineered for reliable operation in electrically noisy environments, ensuring signal integrity and protection for both the host system and connected field devices.
This model is part of Axiom’s modular I/O interface product line, optimized for industrial PCs, embedded controllers, and data acquisition systems requiring high channel density and galvanic isolation.
2. Key Features
- 48 Opto-Isolated Digital Inputs: Provides 48 independent digital input channels, each isolated from one another and from the system ground.
- Wide Input Voltage Range: Accepts both DC and AC signals from +5V to +24V, allowing flexible interfacing with a variety of sensors, switches, and control signals.
- High Isolation Voltage: Each channel is isolated up to 1 kV (channel-to-channel and channel-to-ground), ensuring robust protection against voltage transients, surges, and ground loops.
- Optocoupler Type: Utilizes PC814 optocouplers for reliable signal isolation and long operational life.
- Dual 50-Pin Connectors: Equipped with two 50-pin headers for convenient connection to external wiring harnesses, terminal boards, or backplanes.
- Industrial Form Factor: Compact PCB design with dimensions of 304 mm x 90 mm, suitable for installation in industrial PC chassis or custom enclosures.
- Flexible Signal Compatibility: Supports both logic-level and field-level digital signals, making it suitable for interfacing with PLCs, sensors, relays, and control panels.
- Noise Immunity: Opto-isolation and robust PCB layout minimize susceptibility to electromagnetic interference (EMI) and crosstalk.
- High Channel Density: Consolidates 48 input channels on a single card, reducing system footprint and simplifying wiring.
- Reliable Industrial Design: Built for continuous operation in demanding environments, with high-quality components and durable PCB construction.
3. Technical Specifications
- Product Type: Opto-isolated Digital Input PC Card
- Number of Channels: 48 digital input channels
- Input Voltage Range: +5V to +24V DC/AC per channel
- Isolation Voltage: 1 kV (channel-to-channel and channel-to-ground)
- Optocoupler Type: PC814 (per channel)
- Connectors: 2 × 50-pin headers (standard IDC type)
- Dimensions: 304 mm (length) × 90 mm (width)
- Mounting Type: PC card / industrial backplane compatible
- Input Type: Optically isolated digital input
- Input Signal Compatibility: TTL, CMOS, relay contact, proximity sensor, or other digital signal sources within the specified voltage range
- Input Frequency Response: Determined by optocoupler response time (typical PC814 switching characteristics)
- Isolation Resistance: >100 MΩ at 500 VDC (typical for PC814-based isolation)
- Power Supply: Derived from PC bus or external regulated supply (depending on system configuration)
- Operating Temperature Range: Typically 0°C to +60°C (industrial environment)
- Storage Temperature Range: -20°C to +85°C
- Humidity: 5% to 95% RH, non-condensing
- PCB Material: FR-4 industrial-grade fiberglass epoxy laminate
- Weight: Approx. 250–350 g (depending on connector configuration)
4. Functionality
The AX5048i functions as a high-density digital input interface card for PC-based control and monitoring systems. Each of its 48 input channels is optically isolated using PC814 optocouplers, which convert incoming electrical signals into optical signals, thereby providing galvanic separation between the field wiring and the host electronics.
Operation Principle:
When a voltage signal (DC or AC) within the +5V to +24V range is applied to an input channel, the optocoupler’s internal LED activates, triggering the phototransistor output stage. This change is detected by the card’s input circuitry and transmitted to the host system as a logic-level digital signal. The optical isolation ensures that any high-voltage spikes or ground potential differences on the input side do not affect the PC or other connected devices.
Use Cases and Applications:
- Industrial automation and process control systems
- Machine monitoring and status indication
- Data acquisition and event logging
- PLC and SCADA system integration
- Safety interlock and alarm input monitoring
- Building automation and facility management systems
- Laboratory and test equipment interfacing
Compatibility:
The AX5048i is compatible with standard PC-based industrial control systems, backplanes, and I/O expansion frameworks. It can interface with Axiom’s range of terminal boards, ribbon cables, and signal conditioning modules.
5. Components & Accessories
Included Components:
- AX5048i opto-isolated 48-channel DI card
- Two 50-pin header connectors (onboard)
- Product documentation and pin assignment guide
Optional Accessories:
- 50-pin ribbon cables for external connection
- Terminal breakout boards for field wiring
- DIN-rail mounting adapters (if used in standalone configuration)
- Protective enclosures or backplane modules
- External power supply (if required by system design)
Connectors:
- Connector Type: Dual 50-pin IDC headers
- Pin Assignment: Standardized for Axiom digital I/O modules
- Signal Mapping: Each pin corresponds to one input channel, with common return lines as per wiring diagram
6. Installation & Setup
Requirements:
- Compatible PC or industrial controller with appropriate expansion slot or interface
- Power supply capable of supporting the card’s input circuitry
- Proper grounding and shielding for noise-sensitive environments
Mounting Options:
- Direct installation into a PC chassis or industrial backplane
- Mounting within a control cabinet using optional DIN-rail or panel brackets
- Connection to external terminal boards via 50-pin ribbon cables
Configuration:
- Each input channel can be configured for DC or AC signal detection within the +5V to +24V range.
- Input polarity and signal type selection depend on wiring configuration.
- System software or driver (if applicable) detects input states and maps them to logical channels.
Setup Procedure:
1. Power off the host system before installation.
2. Insert the AX5048i card into the designated slot or mount it securely in the enclosure.
3. Connect the 50-pin ribbon cables to the corresponding terminal boards or field wiring.
4. Verify correct wiring and isolation before powering on.
5. Configure input channels in the control software or data acquisition system.
6. Test input response and verify signal integrity.
7. Performance & Capabilities
Speed and Response:
The AX5048i’s performance is governed by the PC814 optocoupler’s switching characteristics, typically providing fast response times suitable for most industrial digital input applications. The card can reliably detect state changes in the millisecond range, making it appropriate for monitoring switches, sensors, and control signals.
Capacity:
- 48 independent input channels allow simultaneous monitoring of multiple devices or sensors.
- High channel density reduces the need for multiple cards in large systems.
Efficiency:
- Opto-isolation minimizes power consumption per channel while providing robust protection.
- Efficient PCB layout ensures minimal crosstalk and signal degradation.
Limitations:
- Not designed for high-frequency pulse counting or very high-speed digital input applications (limited by optocoupler response time).
- Input voltage limited to +24V maximum; higher voltages require external conditioning.
- Requires proper grounding and shielding for optimal performance in high-EMI environments.
8. Standards & Compliance
Certifications and Compliance:
- Designed in accordance with industrial electronic design standards for safety and reliability.
- Isolation and insulation meet typical IEC and EN standards for 1 kV isolation.
- RoHS compliant (lead-free manufacturing).
- CE marking (for electromagnetic compatibility and safety, depending on region).
- Conforms to Axiom’s internal quality assurance and testing protocols for industrial-grade hardware.
Industry Standards:
- Compatible with standard PC/104, PCI, or proprietary Axiom backplane interfaces (depending on system integration).
- Meets general industrial I/O interface specifications for digital input modules.
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 1–2 years) covering defects in materials and workmanship.
Support:
- Technical documentation, wiring diagrams, and pinout charts provided by Axiom.
- Customer support available for installation, configuration, and troubleshooting.
- Firmware or driver updates (if applicable) available through Axiom’s support portal.
Maintenance:
- Periodic inspection of connectors and wiring recommended.
- Ensure clean, dust-free environment for optimal performance.
- No user-serviceable internal components; repairs should be performed by authorized service personnel.
Updates and Lifecycle:
- The AX5048i is part of Axiom’s ongoing industrial I/O product line, ensuring long-term availability and compatibility with future systems.
- Backward compatibility with existing Axiom digital I/O accessories and software tools.
Summary
The Axiom AX5048i Opto-Isolated 48 DI PC Card is a robust, high-density digital input interface solution engineered for industrial automation, control, and monitoring applications. With 48 optically isolated channels supporting +5V to +24V DC/AC inputs, 1 kV isolation protection, and dual 50-pin connectors, it delivers reliable signal acquisition and electrical protection in demanding environments. Its compact 304 × 90 mm form factor, PC814 optocoupler-based design, and compatibility with Axiom’s accessory ecosystem make it an ideal choice for system integrators and engineers seeking a dependable, scalable digital input solution.
Product Name: AX5048i
Model: AX5048i
Series: AX5000 Series (Industrial I/O Interface Cards)
Article Number: AX5048i
Manufacturer: Axiom
The Axiom AX5048i is an industrial-grade opto-isolated digital input (DI) PC card designed for high-density signal acquisition and robust electrical isolation in automation, control, and monitoring systems. It provides 48 optically isolated digital input channels, each capable of handling both DC and AC input voltages ranging from +5V to +24V. The card is engineered for reliable operation in electrically noisy environments, ensuring signal integrity and protection for both the host system and connected field devices.
This model is part of Axiom’s modular I/O interface product line, optimized for industrial PCs, embedded controllers, and data acquisition systems requiring high channel density and galvanic isolation.
2. Key Features
- 48 Opto-Isolated Digital Inputs: Provides 48 independent digital input channels, each isolated from one another and from the system ground.
- Wide Input Voltage Range: Accepts both DC and AC signals from +5V to +24V, allowing flexible interfacing with a variety of sensors, switches, and control signals.
- High Isolation Voltage: Each channel is isolated up to 1 kV (channel-to-channel and channel-to-ground), ensuring robust protection against voltage transients, surges, and ground loops.
- Optocoupler Type: Utilizes PC814 optocouplers for reliable signal isolation and long operational life.
- Dual 50-Pin Connectors: Equipped with two 50-pin headers for convenient connection to external wiring harnesses, terminal boards, or backplanes.
- Industrial Form Factor: Compact PCB design with dimensions of 304 mm x 90 mm, suitable for installation in industrial PC chassis or custom enclosures.
- Flexible Signal Compatibility: Supports both logic-level and field-level digital signals, making it suitable for interfacing with PLCs, sensors, relays, and control panels.
- Noise Immunity: Opto-isolation and robust PCB layout minimize susceptibility to electromagnetic interference (EMI) and crosstalk.
- High Channel Density: Consolidates 48 input channels on a single card, reducing system footprint and simplifying wiring.
- Reliable Industrial Design: Built for continuous operation in demanding environments, with high-quality components and durable PCB construction.
3. Technical Specifications
- Product Type: Opto-isolated Digital Input PC Card
- Number of Channels: 48 digital input channels
- Input Voltage Range: +5V to +24V DC/AC per channel
- Isolation Voltage: 1 kV (channel-to-channel and channel-to-ground)
- Optocoupler Type: PC814 (per channel)
- Connectors: 2 × 50-pin headers (standard IDC type)
- Dimensions: 304 mm (length) × 90 mm (width)
- Mounting Type: PC card / industrial backplane compatible
- Input Type: Optically isolated digital input
- Input Signal Compatibility: TTL, CMOS, relay contact, proximity sensor, or other digital signal sources within the specified voltage range
- Input Frequency Response: Determined by optocoupler response time (typical PC814 switching characteristics)
- Isolation Resistance: >100 MΩ at 500 VDC (typical for PC814-based isolation)
- Power Supply: Derived from PC bus or external regulated supply (depending on system configuration)
- Operating Temperature Range: Typically 0°C to +60°C (industrial environment)
- Storage Temperature Range: -20°C to +85°C
- Humidity: 5% to 95% RH, non-condensing
- PCB Material: FR-4 industrial-grade fiberglass epoxy laminate
- Weight: Approx. 250–350 g (depending on connector configuration)
4. Functionality
The AX5048i functions as a high-density digital input interface card for PC-based control and monitoring systems. Each of its 48 input channels is optically isolated using PC814 optocouplers, which convert incoming electrical signals into optical signals, thereby providing galvanic separation between the field wiring and the host electronics.
Operation Principle:
When a voltage signal (DC or AC) within the +5V to +24V range is applied to an input channel, the optocoupler’s internal LED activates, triggering the phototransistor output stage. This change is detected by the card’s input circuitry and transmitted to the host system as a logic-level digital signal. The optical isolation ensures that any high-voltage spikes or ground potential differences on the input side do not affect the PC or other connected devices.
Use Cases and Applications:
- Industrial automation and process control systems
- Machine monitoring and status indication
- Data acquisition and event logging
- PLC and SCADA system integration
- Safety interlock and alarm input monitoring
- Building automation and facility management systems
- Laboratory and test equipment interfacing
Compatibility:
The AX5048i is compatible with standard PC-based industrial control systems, backplanes, and I/O expansion frameworks. It can interface with Axiom’s range of terminal boards, ribbon cables, and signal conditioning modules.
5. Components & Accessories
Included Components:
- AX5048i opto-isolated 48-channel DI card
- Two 50-pin header connectors (onboard)
- Product documentation and pin assignment guide
Optional Accessories:
- 50-pin ribbon cables for external connection
- Terminal breakout boards for field wiring
- DIN-rail mounting adapters (if used in standalone configuration)
- Protective enclosures or backplane modules
- External power supply (if required by system design)
Connectors:
- Connector Type: Dual 50-pin IDC headers
- Pin Assignment: Standardized for Axiom digital I/O modules
- Signal Mapping: Each pin corresponds to one input channel, with common return lines as per wiring diagram
6. Installation & Setup
Requirements:
- Compatible PC or industrial controller with appropriate expansion slot or interface
- Power supply capable of supporting the card’s input circuitry
- Proper grounding and shielding for noise-sensitive environments
Mounting Options:
- Direct installation into a PC chassis or industrial backplane
- Mounting within a control cabinet using optional DIN-rail or panel brackets
- Connection to external terminal boards via 50-pin ribbon cables
Configuration:
- Each input channel can be configured for DC or AC signal detection within the +5V to +24V range.
- Input polarity and signal type selection depend on wiring configuration.
- System software or driver (if applicable) detects input states and maps them to logical channels.
Setup Procedure:
1. Power off the host system before installation.
2. Insert the AX5048i card into the designated slot or mount it securely in the enclosure.
3. Connect the 50-pin ribbon cables to the corresponding terminal boards or field wiring.
4. Verify correct wiring and isolation before powering on.
5. Configure input channels in the control software or data acquisition system.
6. Test input response and verify signal integrity.
7. Performance & Capabilities
Speed and Response:
The AX5048i’s performance is governed by the PC814 optocoupler’s switching characteristics, typically providing fast response times suitable for most industrial digital input applications. The card can reliably detect state changes in the millisecond range, making it appropriate for monitoring switches, sensors, and control signals.
Capacity:
- 48 independent input channels allow simultaneous monitoring of multiple devices or sensors.
- High channel density reduces the need for multiple cards in large systems.
Efficiency:
- Opto-isolation minimizes power consumption per channel while providing robust protection.
- Efficient PCB layout ensures minimal crosstalk and signal degradation.
Limitations:
- Not designed for high-frequency pulse counting or very high-speed digital input applications (limited by optocoupler response time).
- Input voltage limited to +24V maximum; higher voltages require external conditioning.
- Requires proper grounding and shielding for optimal performance in high-EMI environments.
8. Standards & Compliance
Certifications and Compliance:
- Designed in accordance with industrial electronic design standards for safety and reliability.
- Isolation and insulation meet typical IEC and EN standards for 1 kV isolation.
- RoHS compliant (lead-free manufacturing).
- CE marking (for electromagnetic compatibility and safety, depending on region).
- Conforms to Axiom’s internal quality assurance and testing protocols for industrial-grade hardware.
Industry Standards:
- Compatible with standard PC/104, PCI, or proprietary Axiom backplane interfaces (depending on system integration).
- Meets general industrial I/O interface specifications for digital input modules.
9. Additional Information
Warranty:
- Standard manufacturer’s warranty (typically 1–2 years) covering defects in materials and workmanship.
Support:
- Technical documentation, wiring diagrams, and pinout charts provided by Axiom.
- Customer support available for installation, configuration, and troubleshooting.
- Firmware or driver updates (if applicable) available through Axiom’s support portal.
Maintenance:
- Periodic inspection of connectors and wiring recommended.
- Ensure clean, dust-free environment for optimal performance.
- No user-serviceable internal components; repairs should be performed by authorized service personnel.
Updates and Lifecycle:
- The AX5048i is part of Axiom’s ongoing industrial I/O product line, ensuring long-term availability and compatibility with future systems.
- Backward compatibility with existing Axiom digital I/O accessories and software tools.
Summary
The Axiom AX5048i Opto-Isolated 48 DI PC Card is a robust, high-density digital input interface solution engineered for industrial automation, control, and monitoring applications. With 48 optically isolated channels supporting +5V to +24V DC/AC inputs, 1 kV isolation protection, and dual 50-pin connectors, it delivers reliable signal acquisition and electrical protection in demanding environments. Its compact 304 × 90 mm form factor, PC814 optocoupler-based design, and compatibility with Axiom’s accessory ecosystem make it an ideal choice for system integrators and engineers seeking a dependable, scalable digital input solution.
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