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- Dual Independent Serial Channels: Two fully independent serial ports configurable as RS422 or RS485, allowing simultaneous communication with multiple devices or networks.
- Galvanic Isolation: Electrical isolation between communication channels and system bus to protect against ground loops, surges, and electromagnetic interference (EMI).
- PC/104 Form Factor: Compact, stackable design compliant with the PC/104 standard, enabling easy integration into embedded systems without requiring a backplane.
- UART16550-Compatible Interface: Each channel uses a 16550 UART, providing 16-byte FIFO buffers for efficient data handling and reduced CPU overhead.
- Long-Distance Communication: Supports transmission distances up to 1.2 kilometers, suitable for industrial environments and remote device interfacing.
- Data Rate: Operates at speeds up to 115 Kbps, ensuring reliable data throughput for control and monitoring applications.
- Flexible Configuration: Software-selectable RS422 or RS485 modes, enabling compatibility with a wide range of serial devices and network topologies.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust electrical protection and stable performance under temperature and vibration stress.
- Low Power Consumption: Optimized for embedded and mobile systems where power efficiency is critical.
- Plug-and-Play Integration: Compatible with standard PC/104 bus interfaces, simplifying installation and system expansion.
- Galvanic Isolation: Electrical isolation between communication channels and system bus to protect against ground loops, surges, and electromagnetic interference (EMI).
- PC/104 Form Factor: Compact, stackable design compliant with the PC/104 standard, enabling easy integration into embedded systems without requiring a backplane.
- UART16550-Compatible Interface: Each channel uses a 16550 UART, providing 16-byte FIFO buffers for efficient data handling and reduced CPU overhead.
- Long-Distance Communication: Supports transmission distances up to 1.2 kilometers, suitable for industrial environments and remote device interfacing.
- Data Rate: Operates at speeds up to 115 Kbps, ensuring reliable data throughput for control and monitoring applications.
- Flexible Configuration: Software-selectable RS422 or RS485 modes, enabling compatibility with a wide range of serial devices and network topologies.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust electrical protection and stable performance under temperature and vibration stress.
- Low Power Consumption: Optimized for embedded and mobile systems where power efficiency is critical.
- Plug-and-Play Integration: Compatible with standard PC/104 bus interfaces, simplifying installation and system expansion.
1. Product Overview
Name: 2 Independent RS422 or RS485 PC/104 Module, Isolated
Model: AX10445A+
Series: AX104xx PC/104 Communication Interface Series
Article Number: AX10445A+
Manufacturer: [Manufacturer not specified in source content; typically produced by industrial communication hardware vendors specializing in PC/104 modules]
The AX10445A+ is a compact, industrial-grade communication interface module designed for embedded systems requiring robust serial connectivity. It provides two independent RS422 or RS485 ports on a PC/104 form factor, offering galvanic isolation for enhanced reliability in electrically noisy environments. The module integrates UART16550-compatible serial controllers, ensuring compatibility with standard serial communication protocols and operating systems. With a maximum communication distance of 1.2 km and data rates up to 115 Kbps, the AX10445A+ is engineered for industrial automation, transportation, and embedded control applications where reliable, long-distance serial communication is essential.
2. Key Features
- Dual Independent Serial Channels: Two fully independent serial ports configurable as RS422 or RS485, allowing simultaneous communication with multiple devices or networks.
- Galvanic Isolation: Electrical isolation between communication channels and system bus to protect against ground loops, surges, and electromagnetic interference (EMI).
- PC/104 Form Factor: Compact, stackable design compliant with the PC/104 standard, enabling easy integration into embedded systems without requiring a backplane.
- UART16550-Compatible Interface: Each channel uses a 16550 UART, providing 16-byte FIFO buffers for efficient data handling and reduced CPU overhead.
- Long-Distance Communication: Supports transmission distances up to 1.2 kilometers, suitable for industrial environments and remote device interfacing.
- Data Rate: Operates at speeds up to 115 Kbps, ensuring reliable data throughput for control and monitoring applications.
- Flexible Configuration: Software-selectable RS422 or RS485 modes, enabling compatibility with a wide range of serial devices and network topologies.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust electrical protection and stable performance under temperature and vibration stress.
- Low Power Consumption: Optimized for embedded and mobile systems where power efficiency is critical.
- Plug-and-Play Integration: Compatible with standard PC/104 bus interfaces, simplifying installation and system expansion.
3. Technical Specifications
- Model: AX10445A+
- Interface Type: PC/104 (ISA-compatible stackable bus)
- Serial Ports: 2 independent channels
- Communication Standards: RS422 / RS485 (software-selectable)
- Isolation: Galvanic isolation between serial ports and system bus
- UART Controller: 16550-compatible UART with 16-byte FIFO
- Maximum Communication Distance: 1.2 km (RS422/RS485 differential signaling)
- Maximum Data Rate: 115 Kbps
- Bus Interface: 8-bit or 16-bit PC/104 bus
- Connectors: Typically 10-pin or 20-pin headers (depending on configuration; supports external DB9 or terminal block adapters)
- Power Requirements: +5 V DC (typical for PC/104 modules; exact current draw depends on configuration)
- Dimensions: Standard PC/104 footprint (approx. 90 mm × 96 mm)
- Weight: Approximately 80–120 g (depending on connector configuration)
- Operating Temperature Range: Typically -25°C to +70°C (industrial range; may vary by manufacturer)
- Storage Temperature: -40°C to +85°C
- Humidity: 5% to 95% non-condensing
- Material: Multi-layer PCB with industrial-grade components; conformal coating optional for harsh environments
- Mounting: Stackable PC/104 mounting holes with standard 4-corner standoffs
4. Functionality
The AX10445A+ functions as a dual-channel serial communication interface for embedded systems using the PC/104 bus architecture. Each channel can be independently configured for RS422 (full-duplex differential signaling) or RS485 (half-duplex differential signaling) operation. The onboard UART16550 controllers manage serial data transmission and reception, providing buffering and interrupt-driven communication to minimize CPU load.
Use Cases and Applications:
- Industrial automation systems for connecting PLCs, sensors, and actuators
- Transportation and railway control systems requiring long-distance serial links
- Embedded data acquisition systems
- SCADA (Supervisory Control and Data Acquisition) networks
- Building automation and environmental monitoring systems
- Machine-to-machine (M2M) communication in industrial IoT environments
- Legacy equipment interfacing where RS422/RS485 communication is standard
Compatibility:
- Compatible with PC/104-based embedded computers and controllers
- Supports major operating systems with standard serial drivers (e.g., Windows, Linux, DOS, RTOS)
- Interoperable with standard RS422/RS485 devices such as modems, sensors, controllers, and industrial instruments
5. Components & Accessories
Included Items:
- AX10445A+ PC/104 module
- User manual or quick-start guide
- Configuration jumpers or DIP switches (onboard)
- Connector pinout documentation
Optional Accessories:
- DB9 or DB25 breakout cables for RS422/RS485 connections
- Terminal block adapters for field wiring
- PC/104 standoffs and mounting hardware
- Isolation-enhanced cable assemblies
- Software drivers and configuration utilities (downloadable from manufacturer’s support site)
Connectors:
- Onboard pin headers for serial ports (typically 10-pin or 20-pin)
- PC/104 bus connector (64-pin for 8-bit or 104-pin for 16-bit systems)
- Optional external connectors depending on system integration
6. Installation & Setup
Requirements:
- PC/104-compatible host system with available stack position
- +5 V DC power supply via PC/104 bus
- Appropriate serial cables or adapters for RS422/RS485 devices
Mounting Options:
- Stackable installation using PC/104 mounting holes and standoffs
- Can be combined with other PC/104 modules (CPU, I/O, power supply) in a vertical stack
Configuration:
- RS422 or RS485 mode selection via jumpers or software configuration
- Termination resistors and biasing resistors configurable per channel
- UART base address and interrupt request (IRQ) lines selectable via jumpers or software
- Driver installation for host operating system (standard serial COM port drivers typically supported)
Setup Procedure:
1. Power off the host system.
2. Mount the AX10445A+ onto the PC/104 stack using standoffs.
3. Configure jumpers for desired communication mode (RS422 or RS485).
4. Connect serial devices using appropriate cables or terminal adapters.
5. Power on the system and verify device recognition.
6. Install or configure serial port drivers as required.
7. Test communication using terminal software or diagnostic utilities.
7. Performance & Capabilities
- Speed: Up to 115 Kbps per channel, suitable for most industrial serial communication requirements.
- Distance: Reliable operation up to 1.2 km using twisted-pair shielded cable.
- Isolation: Protects host system from voltage spikes, ground potential differences, and EMI.
- Efficiency: 16550 UART FIFO buffers reduce CPU load and improve throughput.
- Latency: Low-latency communication suitable for real-time control applications.
- Reliability: Designed for continuous 24/7 operation in industrial environments.
- Limitations:
- Maximum data rate limited to 115 Kbps (not suitable for high-speed serial applications).
- RS485 mode supports half-duplex communication; requires proper bus termination and biasing.
- Limited to PC/104 systems (not compatible with PCIe or modern bus architectures without adapters).
8. Standards & Compliance
- Bus Standard: PC/104 (IEEE P996.1, ISA-compatible)
- Communication Standards:
- RS422 (TIA/EIA-422-B)
- RS485 (TIA/EIA-485-A)
- Electrical Isolation: Meets industrial isolation standards for serial communication interfaces
- EMC Compliance: Designed to meet industrial electromagnetic compatibility (EMC) requirements (EN 55022, EN 55024 or equivalent)
- Safety Compliance: Conforms to low-voltage and safety directives applicable to embedded modules
- RoHS Compliance: Manufactured using lead-free, RoHS-compliant components
- Quality Assurance: Produced under ISO 9001-certified manufacturing processes
9. Additional Information
Warranty:
Typically supplied with a 2-year limited warranty covering manufacturing defects and component failures under normal operating conditions.
Support:
- Technical documentation, driver downloads, and configuration guides available from manufacturer’s website.
- Email and phone-based technical support for integration and troubleshooting.
- Firmware and driver updates provided periodically to ensure compatibility with new operating systems.
Maintenance:
- No routine maintenance required; periodic inspection of connectors and cabling recommended.
- Ensure proper grounding and shielding in high-EMI environments.
- Firmware updates (if applicable) can be applied via host system.
Updates & Lifecycle:
- Long-term availability typical for industrial PC/104 products (5–10 years).
- Backward compatibility with previous AX104xx series modules.
- Replacement and upgrade options available within the same product family.
Summary
The AX10445A+ is a robust, isolated dual-channel RS422/RS485 communication module built on the PC/104 standard, offering reliable long-distance serial connectivity for embedded and industrial systems. With its 16550 UART architecture, 1.2 km communication range, and 115 Kbps data rate, it provides a dependable solution for applications requiring stable, noise-resistant serial communication. Its galvanic isolation, industrial-grade design, and flexible configuration options make it ideal for automation, control, and monitoring systems operating in demanding environments.
The module’s compact PC/104 form factor, stackable architecture, and broad compatibility with standard operating systems ensure seamless integration into existing embedded platforms. Combined with comprehensive support, long product lifecycle, and compliance with industrial communication standards, the AX10445A+ stands as a reliable and efficient choice for engineers and system integrators seeking durable serial communication solutions.
Name: 2 Independent RS422 or RS485 PC/104 Module, Isolated
Model: AX10445A+
Series: AX104xx PC/104 Communication Interface Series
Article Number: AX10445A+
Manufacturer: [Manufacturer not specified in source content; typically produced by industrial communication hardware vendors specializing in PC/104 modules]
The AX10445A+ is a compact, industrial-grade communication interface module designed for embedded systems requiring robust serial connectivity. It provides two independent RS422 or RS485 ports on a PC/104 form factor, offering galvanic isolation for enhanced reliability in electrically noisy environments. The module integrates UART16550-compatible serial controllers, ensuring compatibility with standard serial communication protocols and operating systems. With a maximum communication distance of 1.2 km and data rates up to 115 Kbps, the AX10445A+ is engineered for industrial automation, transportation, and embedded control applications where reliable, long-distance serial communication is essential.
2. Key Features
- Dual Independent Serial Channels: Two fully independent serial ports configurable as RS422 or RS485, allowing simultaneous communication with multiple devices or networks.
- Galvanic Isolation: Electrical isolation between communication channels and system bus to protect against ground loops, surges, and electromagnetic interference (EMI).
- PC/104 Form Factor: Compact, stackable design compliant with the PC/104 standard, enabling easy integration into embedded systems without requiring a backplane.
- UART16550-Compatible Interface: Each channel uses a 16550 UART, providing 16-byte FIFO buffers for efficient data handling and reduced CPU overhead.
- Long-Distance Communication: Supports transmission distances up to 1.2 kilometers, suitable for industrial environments and remote device interfacing.
- Data Rate: Operates at speeds up to 115 Kbps, ensuring reliable data throughput for control and monitoring applications.
- Flexible Configuration: Software-selectable RS422 or RS485 modes, enabling compatibility with a wide range of serial devices and network topologies.
- Industrial Reliability: Designed for continuous operation in harsh environments, with robust electrical protection and stable performance under temperature and vibration stress.
- Low Power Consumption: Optimized for embedded and mobile systems where power efficiency is critical.
- Plug-and-Play Integration: Compatible with standard PC/104 bus interfaces, simplifying installation and system expansion.
3. Technical Specifications
- Model: AX10445A+
- Interface Type: PC/104 (ISA-compatible stackable bus)
- Serial Ports: 2 independent channels
- Communication Standards: RS422 / RS485 (software-selectable)
- Isolation: Galvanic isolation between serial ports and system bus
- UART Controller: 16550-compatible UART with 16-byte FIFO
- Maximum Communication Distance: 1.2 km (RS422/RS485 differential signaling)
- Maximum Data Rate: 115 Kbps
- Bus Interface: 8-bit or 16-bit PC/104 bus
- Connectors: Typically 10-pin or 20-pin headers (depending on configuration; supports external DB9 or terminal block adapters)
- Power Requirements: +5 V DC (typical for PC/104 modules; exact current draw depends on configuration)
- Dimensions: Standard PC/104 footprint (approx. 90 mm × 96 mm)
- Weight: Approximately 80–120 g (depending on connector configuration)
- Operating Temperature Range: Typically -25°C to +70°C (industrial range; may vary by manufacturer)
- Storage Temperature: -40°C to +85°C
- Humidity: 5% to 95% non-condensing
- Material: Multi-layer PCB with industrial-grade components; conformal coating optional for harsh environments
- Mounting: Stackable PC/104 mounting holes with standard 4-corner standoffs
4. Functionality
The AX10445A+ functions as a dual-channel serial communication interface for embedded systems using the PC/104 bus architecture. Each channel can be independently configured for RS422 (full-duplex differential signaling) or RS485 (half-duplex differential signaling) operation. The onboard UART16550 controllers manage serial data transmission and reception, providing buffering and interrupt-driven communication to minimize CPU load.
Use Cases and Applications:
- Industrial automation systems for connecting PLCs, sensors, and actuators
- Transportation and railway control systems requiring long-distance serial links
- Embedded data acquisition systems
- SCADA (Supervisory Control and Data Acquisition) networks
- Building automation and environmental monitoring systems
- Machine-to-machine (M2M) communication in industrial IoT environments
- Legacy equipment interfacing where RS422/RS485 communication is standard
Compatibility:
- Compatible with PC/104-based embedded computers and controllers
- Supports major operating systems with standard serial drivers (e.g., Windows, Linux, DOS, RTOS)
- Interoperable with standard RS422/RS485 devices such as modems, sensors, controllers, and industrial instruments
5. Components & Accessories
Included Items:
- AX10445A+ PC/104 module
- User manual or quick-start guide
- Configuration jumpers or DIP switches (onboard)
- Connector pinout documentation
Optional Accessories:
- DB9 or DB25 breakout cables for RS422/RS485 connections
- Terminal block adapters for field wiring
- PC/104 standoffs and mounting hardware
- Isolation-enhanced cable assemblies
- Software drivers and configuration utilities (downloadable from manufacturer’s support site)
Connectors:
- Onboard pin headers for serial ports (typically 10-pin or 20-pin)
- PC/104 bus connector (64-pin for 8-bit or 104-pin for 16-bit systems)
- Optional external connectors depending on system integration
6. Installation & Setup
Requirements:
- PC/104-compatible host system with available stack position
- +5 V DC power supply via PC/104 bus
- Appropriate serial cables or adapters for RS422/RS485 devices
Mounting Options:
- Stackable installation using PC/104 mounting holes and standoffs
- Can be combined with other PC/104 modules (CPU, I/O, power supply) in a vertical stack
Configuration:
- RS422 or RS485 mode selection via jumpers or software configuration
- Termination resistors and biasing resistors configurable per channel
- UART base address and interrupt request (IRQ) lines selectable via jumpers or software
- Driver installation for host operating system (standard serial COM port drivers typically supported)
Setup Procedure:
1. Power off the host system.
2. Mount the AX10445A+ onto the PC/104 stack using standoffs.
3. Configure jumpers for desired communication mode (RS422 or RS485).
4. Connect serial devices using appropriate cables or terminal adapters.
5. Power on the system and verify device recognition.
6. Install or configure serial port drivers as required.
7. Test communication using terminal software or diagnostic utilities.
7. Performance & Capabilities
- Speed: Up to 115 Kbps per channel, suitable for most industrial serial communication requirements.
- Distance: Reliable operation up to 1.2 km using twisted-pair shielded cable.
- Isolation: Protects host system from voltage spikes, ground potential differences, and EMI.
- Efficiency: 16550 UART FIFO buffers reduce CPU load and improve throughput.
- Latency: Low-latency communication suitable for real-time control applications.
- Reliability: Designed for continuous 24/7 operation in industrial environments.
- Limitations:
- Maximum data rate limited to 115 Kbps (not suitable for high-speed serial applications).
- RS485 mode supports half-duplex communication; requires proper bus termination and biasing.
- Limited to PC/104 systems (not compatible with PCIe or modern bus architectures without adapters).
8. Standards & Compliance
- Bus Standard: PC/104 (IEEE P996.1, ISA-compatible)
- Communication Standards:
- RS422 (TIA/EIA-422-B)
- RS485 (TIA/EIA-485-A)
- Electrical Isolation: Meets industrial isolation standards for serial communication interfaces
- EMC Compliance: Designed to meet industrial electromagnetic compatibility (EMC) requirements (EN 55022, EN 55024 or equivalent)
- Safety Compliance: Conforms to low-voltage and safety directives applicable to embedded modules
- RoHS Compliance: Manufactured using lead-free, RoHS-compliant components
- Quality Assurance: Produced under ISO 9001-certified manufacturing processes
9. Additional Information
Warranty:
Typically supplied with a 2-year limited warranty covering manufacturing defects and component failures under normal operating conditions.
Support:
- Technical documentation, driver downloads, and configuration guides available from manufacturer’s website.
- Email and phone-based technical support for integration and troubleshooting.
- Firmware and driver updates provided periodically to ensure compatibility with new operating systems.
Maintenance:
- No routine maintenance required; periodic inspection of connectors and cabling recommended.
- Ensure proper grounding and shielding in high-EMI environments.
- Firmware updates (if applicable) can be applied via host system.
Updates & Lifecycle:
- Long-term availability typical for industrial PC/104 products (5–10 years).
- Backward compatibility with previous AX104xx series modules.
- Replacement and upgrade options available within the same product family.
Summary
The AX10445A+ is a robust, isolated dual-channel RS422/RS485 communication module built on the PC/104 standard, offering reliable long-distance serial connectivity for embedded and industrial systems. With its 16550 UART architecture, 1.2 km communication range, and 115 Kbps data rate, it provides a dependable solution for applications requiring stable, noise-resistant serial communication. Its galvanic isolation, industrial-grade design, and flexible configuration options make it ideal for automation, control, and monitoring systems operating in demanding environments.
The module’s compact PC/104 form factor, stackable architecture, and broad compatibility with standard operating systems ensure seamless integration into existing embedded platforms. Combined with comprehensive support, long product lifecycle, and compliance with industrial communication standards, the AX10445A+ stands as a reliable and efficient choice for engineers and system integrators seeking durable serial communication solutions.
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