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- PCI Express 2.0 Compliance: Fully compliant with PCIe 2.0 x1 interface, ensuring high-speed data transfer and compatibility with modern embedded platforms.
- Multi-Port Serial Expansion: Provides four independent RS-422/485 ports through DB-9 connectors, enabling multiple serial device connections simultaneously.
- Configurable Communication Modes: Each port supports RS-422 (full duplex) and RS-485 (half or full duplex) modes, selectable via hardware switch.
- High-Speed Data Transmission: Supports serial data rates up to 25 Mbps, suitable for demanding industrial communication protocols.
- 16C550 Compatible UART: Ensures compatibility with legacy serial communication software and drivers, featuring 256-byte FIFO buffers for efficient data handling.
- Industrial Temperature Range: Operates reliably in extreme environments with a wide temperature range from -40°C to +85°C.
- Enhanced ESD Protection: Integrated 15 kV electrostatic discharge protection circuit safeguards against transient voltage spikes and static discharge damage.
- Flexible Connector Design: Utilizes DB-9 connectors with cable options for easy integration into various system configurations.
- Termination Resistor Configuration: Onboard jumper settings allow users to enable or disable termination resistors for optimal signal integrity in RS-485 networks.
- Durable Construction: Features 30µ” gold-plated edge fingers for improved conductivity and long-term reliability.
- Low Power Consumption: Typical power draw of only 0.33 W (3.3V x 100mA), ideal for low-power embedded systems.
- Industrial-Grade Reliability: Designed and manufactured in Taiwan under Innodisk’s stringent quality control standards, ensuring consistent performance in harsh environments.
- Warranty: Backed by a 3-year manufacturer warranty.
- Multi-Port Serial Expansion: Provides four independent RS-422/485 ports through DB-9 connectors, enabling multiple serial device connections simultaneously.
- Configurable Communication Modes: Each port supports RS-422 (full duplex) and RS-485 (half or full duplex) modes, selectable via hardware switch.
- High-Speed Data Transmission: Supports serial data rates up to 25 Mbps, suitable for demanding industrial communication protocols.
- 16C550 Compatible UART: Ensures compatibility with legacy serial communication software and drivers, featuring 256-byte FIFO buffers for efficient data handling.
- Industrial Temperature Range: Operates reliably in extreme environments with a wide temperature range from -40°C to +85°C.
- Enhanced ESD Protection: Integrated 15 kV electrostatic discharge protection circuit safeguards against transient voltage spikes and static discharge damage.
- Flexible Connector Design: Utilizes DB-9 connectors with cable options for easy integration into various system configurations.
- Termination Resistor Configuration: Onboard jumper settings allow users to enable or disable termination resistors for optimal signal integrity in RS-485 networks.
- Durable Construction: Features 30µ” gold-plated edge fingers for improved conductivity and long-term reliability.
- Low Power Consumption: Typical power draw of only 0.33 W (3.3V x 100mA), ideal for low-power embedded systems.
- Industrial-Grade Reliability: Designed and manufactured in Taiwan under Innodisk’s stringent quality control standards, ensuring consistent performance in harsh environments.
- Warranty: Backed by a 3-year manufacturer warranty.
Comprehensive Product Summary: EMP2-X402-W1-A71 – mPCIe to Four RS-422/485 Module
### 1. Product Overview
Product Name: mPCIe to Four RS-422/485 Module
Model: EMP2-X402-W1-A71
Series: EMP2-X402 Series
Article Number: EMP2-X402-W1-A71
Manufacturer: Innodisk Corporation
Country of Manufacture: Taiwan
Product Type: Mini PCI Express (mPCIe) expansion module for serial communication
Product Category: Industrial communication interface module
The Innodisk EMP2-X402-W1-A71 is a compact, high-performance mPCIe module designed to provide four independent RS-422/485 serial communication ports. It is engineered for industrial-grade applications requiring reliable, high-speed serial connectivity in embedded systems, automation controllers, and industrial PCs. The module adheres to PCI Express 2.0 standards and supports both RS-422 and RS-485 communication modes, configurable via onboard switches.
### 2. Key Features
- PCI Express 2.0 Compliance: Fully compliant with PCIe 2.0 x1 interface, ensuring high-speed data transfer and compatibility with modern embedded platforms.
- Multi-Port Serial Expansion: Provides four independent RS-422/485 ports through DB-9 connectors, enabling multiple serial device connections simultaneously.
- Configurable Communication Modes: Each port supports RS-422 (full duplex) and RS-485 (half or full duplex) modes, selectable via hardware switch.
- High-Speed Data Transmission: Supports serial data rates up to 25 Mbps, suitable for demanding industrial communication protocols.
- 16C550 Compatible UART: Ensures compatibility with legacy serial communication software and drivers, featuring 256-byte FIFO buffers for efficient data handling.
- Industrial Temperature Range: Operates reliably in extreme environments with a wide temperature range from -40°C to +85°C.
- Enhanced ESD Protection: Integrated 15 kV electrostatic discharge protection circuit safeguards against transient voltage spikes and static discharge damage.
- Flexible Connector Design: Utilizes DB-9 connectors with cable options for easy integration into various system configurations.
- Termination Resistor Configuration: Onboard jumper settings allow users to enable or disable termination resistors for optimal signal integrity in RS-485 networks.
- Durable Construction: Features 30µ” gold-plated edge fingers for improved conductivity and long-term reliability.
- Low Power Consumption: Typical power draw of only 0.33 W (3.3V x 100mA), ideal for low-power embedded systems.
- Industrial-Grade Reliability: Designed and manufactured in Taiwan under Innodisk’s stringent quality control standards, ensuring consistent performance in harsh environments.
- Warranty: Backed by a 3-year manufacturer warranty.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Form Factor | Mini PCI Express (mPCIe) |
| Interface (Input) | PCI Express 2.0 x1 |
| Interface (Output) | RS-422 / RS-485 (configurable) |
| Number of Ports | 4 independent serial ports |
| Connector Type | DB-9 (x4) |
| Data Rate | Up to 25 Mbps |
| UART Compatibility | 16C550 compatible with 256-byte FIFO |
| Power Consumption (TDP) | 0.33 W (3.3V x 100mA) |
| Dimensions (W x L x H) | 30 mm x 50.9 mm x 8.25 mm |
| Operating Temperature | -40°C to +85°C (Wide Temperature) |
| Storage Temperature | -55°C to +95°C |
| Vibration Resistance | 5G @ 7–2000 Hz |
| Shock Resistance | 50G @ 0.5 ms |
| ESD Protection | Up to 15 kV |
| Gold Finger Thickness | 30 microinches (30µ”) |
| Material | Industrial-grade PCB with gold-plated contacts |
| Weight | Lightweight (approx. < 20 g typical for mPCIe modules) |
| Country of Origin | Taiwan |
### 4. Functionality
The EMP2-X402-W1-A71 functions as a serial communication expansion module that converts a system’s mPCIe slot into four RS-422/485 serial ports. It enables embedded systems, industrial PCs, and automation controllers to interface with a wide range of serial devices such as sensors, PLCs, motor controllers, and industrial instruments.
Operational Modes:
- RS-422 Mode (Full Duplex): Supports separate transmit (TX+/TX−) and receive (RX+/RX−) differential pairs for full-duplex communication.
- RS-485 Mode (Half Duplex): Uses a single differential pair (D+/D−) for bidirectional communication, reducing wiring complexity.
- RS-485 Mode (Full Duplex): Provides independent transmit and receive pairs for simultaneous two-way communication.
Use Cases and Applications:
- Industrial automation and control systems
- Embedded computing platforms
- Machine-to-machine (M2M) communication
- Data acquisition systems
- Transportation and logistics equipment
- Energy management and smart grid devices
- Industrial networking and SCADA systems
Compatibility:
- Operating Systems:
- Windows XP (32-bit), Windows 7 (32/64-bit), Windows 8/8.1 (32/64-bit), Windows 10, Windows Embedded Standard 7 (WES7), Windows CE 7.0
- Linux Kernel 2.6.x and above (source code available for customization)
- Driver Availability: Drivers can be downloaded from the MyInnodisk website.
### 5. Components & Accessories
Included Items:
- EMP2-X402-W1-A71 mPCIe module
- DB-9 connector cables (4-port breakout cable, depending on configuration)
- Quick installation guide or datasheet
- Warranty documentation
Optional Accessories:
- Additional DB-9 extension cables
- Mounting brackets or adapters for specific chassis configurations
- Custom cable assemblies for OEM integration
Connectors and Pin Assignments:
RS-422/RS-485 Full Duplex Configuration:
| Signal | Pin | Description |
|--------|-----|-------------|
| TX− | 1 | Transmit Negative |
| TX+ | 2 | Transmit Positive |
| RX+ | 3 | Receive Positive |
| RX− | 4 | Receive Negative |
| GND | 5, 6 | Ground |
RS-485 Half Duplex Configuration:
| Signal | Pin | Description |
|--------|-----|-------------|
| D− | 1 | Data Negative |
| D+ | 2 | Data Positive |
| GND | 5, 6 | Ground |
### 6. Installation & Setup
System Requirements:
- Host system with available mPCIe slot (PCIe 2.0 x1 compatible)
- Supported operating system (Windows or Linux)
- Administrative privileges for driver installation
Installation Steps:
1. Power off the host system and disconnect from power.
2. Insert the EMP2-X402-W1-A71 module into the available mPCIe slot, ensuring proper alignment of the gold fingers.
3. Secure the module using the mounting screw provided by the system manufacturer.
4. Connect the DB-9 breakout cable to the module’s connector interface.
5. Configure RS-422 or RS-485 mode using the onboard DIP switch or jumper settings.
6. If required, enable or disable termination resistors via jumper configuration to match network topology.
7. Power on the system and install the appropriate driver from the MyInnodisk website.
8. Verify port recognition in the operating system’s device manager or terminal interface.
Mounting Options:
- Direct installation into embedded boards or industrial PCs with mPCIe slots
- Suitable for compact enclosures and fanless systems due to low power and small form factor
Configuration Tools:
- Standard OS device manager for COM port assignment
- Innodisk-provided driver utilities for advanced configuration
### 7. Performance & Capabilities
Data Throughput:
- Supports up to 25 Mbps serial data rate, ensuring fast and reliable communication for industrial protocols such as Modbus RTU, Profibus, and custom serial interfaces.
Buffering and Flow Control:
- 256-byte FIFO buffers per port minimize CPU overhead and prevent data loss during high-speed transmission.
- Hardware and software flow control supported depending on driver implementation.
Power Efficiency:
- Consumes only 0.33 W, making it ideal for energy-sensitive embedded systems.
Environmental Robustness:
- Designed for continuous operation in harsh industrial environments with wide temperature tolerance and high shock/vibration resistance.
Limitations:
- Limited to four serial ports per module (expandable via additional modules).
- Requires driver installation for full functionality under supported OS environments.
### 8. Standards & Compliance
Compliance and Certifications:
- PCI Express 2.0 Specification: Ensures interoperability with standard PCIe interfaces.
- ESD Protection: IEC 61000-4-2 compliant (up to 15 kV).
- RoHS Compliance: Manufactured in accordance with Restriction of Hazardous Substances (RoHS) directives.
- Industrial Grade Design: Built to meet industrial reliability and environmental standards for vibration and shock resistance.
Environmental and Safety Standards:
- Operating temperature: -40°C to +85°C
- Storage temperature: -55°C to +95°C
- Vibration: 5G @ 7–2000 Hz
- Shock: 50G @ 0.5 ms
Quality Assurance:
Manufactured under Innodisk’s ISO-certified production facilities in Taiwan, ensuring consistent quality and long-term reliability.
### 9. Additional Information
Warranty:
- 3-year limited warranty covering manufacturing defects and component reliability.
Support and Maintenance:
- Technical support available through Innodisk’s global offices (Taiwan, USA, Europe, Japan, China).
- Email support:
- Taiwan HQ: sales@innodisk.com
- USA: usasales@innodisk.com
- Europe: eusales@innodisk.com
- Japan: jpsales@innodisk.com
- China: sales_cn@innodisk.com
- Phone support available in each region.
Maintenance Recommendations:
- Periodically inspect connectors and cables for wear or corrosion.
- Ensure proper grounding to maintain ESD protection effectiveness.
- Keep firmware and drivers updated via the MyInnodisk website.
Product Lifecycle and Updates:
- Specifications subject to change without prior notice (as of January 27, 2016).
- Regular driver and firmware updates provided for compatibility with new OS versions.
Manufacturer Contact Information:
Innodisk Corporation Headquarters
5F., No. 237, Sec. 1, Datong Rd., Xizhi Dist., New Taipei City 221, Taiwan
Tel: +886-2-7703-3000
Website: [www.innodisk.com](http://www.innodisk.com)
### Summary
The Innodisk EMP2-X402-W1-A71 is a robust, industrial-grade mPCIe module that expands system connectivity by providing four configurable RS-422/485 serial ports. With its PCIe 2.0 compliance, high-speed 25 Mbps data rate, and wide temperature tolerance, it is ideally suited for embedded and industrial applications requiring reliable serial communication. The module’s flexible configuration options, strong ESD protection, and low power consumption make it a dependable solution for automation, control, and data acquisition systems.
Backed by Innodisk’s 3-year warranty and global technical support, the EMP2-X402-W1-A71 delivers long-term reliability and performance in demanding industrial environments.
### 1. Product Overview
Product Name: mPCIe to Four RS-422/485 Module
Model: EMP2-X402-W1-A71
Series: EMP2-X402 Series
Article Number: EMP2-X402-W1-A71
Manufacturer: Innodisk Corporation
Country of Manufacture: Taiwan
Product Type: Mini PCI Express (mPCIe) expansion module for serial communication
Product Category: Industrial communication interface module
The Innodisk EMP2-X402-W1-A71 is a compact, high-performance mPCIe module designed to provide four independent RS-422/485 serial communication ports. It is engineered for industrial-grade applications requiring reliable, high-speed serial connectivity in embedded systems, automation controllers, and industrial PCs. The module adheres to PCI Express 2.0 standards and supports both RS-422 and RS-485 communication modes, configurable via onboard switches.
### 2. Key Features
- PCI Express 2.0 Compliance: Fully compliant with PCIe 2.0 x1 interface, ensuring high-speed data transfer and compatibility with modern embedded platforms.
- Multi-Port Serial Expansion: Provides four independent RS-422/485 ports through DB-9 connectors, enabling multiple serial device connections simultaneously.
- Configurable Communication Modes: Each port supports RS-422 (full duplex) and RS-485 (half or full duplex) modes, selectable via hardware switch.
- High-Speed Data Transmission: Supports serial data rates up to 25 Mbps, suitable for demanding industrial communication protocols.
- 16C550 Compatible UART: Ensures compatibility with legacy serial communication software and drivers, featuring 256-byte FIFO buffers for efficient data handling.
- Industrial Temperature Range: Operates reliably in extreme environments with a wide temperature range from -40°C to +85°C.
- Enhanced ESD Protection: Integrated 15 kV electrostatic discharge protection circuit safeguards against transient voltage spikes and static discharge damage.
- Flexible Connector Design: Utilizes DB-9 connectors with cable options for easy integration into various system configurations.
- Termination Resistor Configuration: Onboard jumper settings allow users to enable or disable termination resistors for optimal signal integrity in RS-485 networks.
- Durable Construction: Features 30µ” gold-plated edge fingers for improved conductivity and long-term reliability.
- Low Power Consumption: Typical power draw of only 0.33 W (3.3V x 100mA), ideal for low-power embedded systems.
- Industrial-Grade Reliability: Designed and manufactured in Taiwan under Innodisk’s stringent quality control standards, ensuring consistent performance in harsh environments.
- Warranty: Backed by a 3-year manufacturer warranty.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Form Factor | Mini PCI Express (mPCIe) |
| Interface (Input) | PCI Express 2.0 x1 |
| Interface (Output) | RS-422 / RS-485 (configurable) |
| Number of Ports | 4 independent serial ports |
| Connector Type | DB-9 (x4) |
| Data Rate | Up to 25 Mbps |
| UART Compatibility | 16C550 compatible with 256-byte FIFO |
| Power Consumption (TDP) | 0.33 W (3.3V x 100mA) |
| Dimensions (W x L x H) | 30 mm x 50.9 mm x 8.25 mm |
| Operating Temperature | -40°C to +85°C (Wide Temperature) |
| Storage Temperature | -55°C to +95°C |
| Vibration Resistance | 5G @ 7–2000 Hz |
| Shock Resistance | 50G @ 0.5 ms |
| ESD Protection | Up to 15 kV |
| Gold Finger Thickness | 30 microinches (30µ”) |
| Material | Industrial-grade PCB with gold-plated contacts |
| Weight | Lightweight (approx. < 20 g typical for mPCIe modules) |
| Country of Origin | Taiwan |
### 4. Functionality
The EMP2-X402-W1-A71 functions as a serial communication expansion module that converts a system’s mPCIe slot into four RS-422/485 serial ports. It enables embedded systems, industrial PCs, and automation controllers to interface with a wide range of serial devices such as sensors, PLCs, motor controllers, and industrial instruments.
Operational Modes:
- RS-422 Mode (Full Duplex): Supports separate transmit (TX+/TX−) and receive (RX+/RX−) differential pairs for full-duplex communication.
- RS-485 Mode (Half Duplex): Uses a single differential pair (D+/D−) for bidirectional communication, reducing wiring complexity.
- RS-485 Mode (Full Duplex): Provides independent transmit and receive pairs for simultaneous two-way communication.
Use Cases and Applications:
- Industrial automation and control systems
- Embedded computing platforms
- Machine-to-machine (M2M) communication
- Data acquisition systems
- Transportation and logistics equipment
- Energy management and smart grid devices
- Industrial networking and SCADA systems
Compatibility:
- Operating Systems:
- Windows XP (32-bit), Windows 7 (32/64-bit), Windows 8/8.1 (32/64-bit), Windows 10, Windows Embedded Standard 7 (WES7), Windows CE 7.0
- Linux Kernel 2.6.x and above (source code available for customization)
- Driver Availability: Drivers can be downloaded from the MyInnodisk website.
### 5. Components & Accessories
Included Items:
- EMP2-X402-W1-A71 mPCIe module
- DB-9 connector cables (4-port breakout cable, depending on configuration)
- Quick installation guide or datasheet
- Warranty documentation
Optional Accessories:
- Additional DB-9 extension cables
- Mounting brackets or adapters for specific chassis configurations
- Custom cable assemblies for OEM integration
Connectors and Pin Assignments:
RS-422/RS-485 Full Duplex Configuration:
| Signal | Pin | Description |
|--------|-----|-------------|
| TX− | 1 | Transmit Negative |
| TX+ | 2 | Transmit Positive |
| RX+ | 3 | Receive Positive |
| RX− | 4 | Receive Negative |
| GND | 5, 6 | Ground |
RS-485 Half Duplex Configuration:
| Signal | Pin | Description |
|--------|-----|-------------|
| D− | 1 | Data Negative |
| D+ | 2 | Data Positive |
| GND | 5, 6 | Ground |
### 6. Installation & Setup
System Requirements:
- Host system with available mPCIe slot (PCIe 2.0 x1 compatible)
- Supported operating system (Windows or Linux)
- Administrative privileges for driver installation
Installation Steps:
1. Power off the host system and disconnect from power.
2. Insert the EMP2-X402-W1-A71 module into the available mPCIe slot, ensuring proper alignment of the gold fingers.
3. Secure the module using the mounting screw provided by the system manufacturer.
4. Connect the DB-9 breakout cable to the module’s connector interface.
5. Configure RS-422 or RS-485 mode using the onboard DIP switch or jumper settings.
6. If required, enable or disable termination resistors via jumper configuration to match network topology.
7. Power on the system and install the appropriate driver from the MyInnodisk website.
8. Verify port recognition in the operating system’s device manager or terminal interface.
Mounting Options:
- Direct installation into embedded boards or industrial PCs with mPCIe slots
- Suitable for compact enclosures and fanless systems due to low power and small form factor
Configuration Tools:
- Standard OS device manager for COM port assignment
- Innodisk-provided driver utilities for advanced configuration
### 7. Performance & Capabilities
Data Throughput:
- Supports up to 25 Mbps serial data rate, ensuring fast and reliable communication for industrial protocols such as Modbus RTU, Profibus, and custom serial interfaces.
Buffering and Flow Control:
- 256-byte FIFO buffers per port minimize CPU overhead and prevent data loss during high-speed transmission.
- Hardware and software flow control supported depending on driver implementation.
Power Efficiency:
- Consumes only 0.33 W, making it ideal for energy-sensitive embedded systems.
Environmental Robustness:
- Designed for continuous operation in harsh industrial environments with wide temperature tolerance and high shock/vibration resistance.
Limitations:
- Limited to four serial ports per module (expandable via additional modules).
- Requires driver installation for full functionality under supported OS environments.
### 8. Standards & Compliance
Compliance and Certifications:
- PCI Express 2.0 Specification: Ensures interoperability with standard PCIe interfaces.
- ESD Protection: IEC 61000-4-2 compliant (up to 15 kV).
- RoHS Compliance: Manufactured in accordance with Restriction of Hazardous Substances (RoHS) directives.
- Industrial Grade Design: Built to meet industrial reliability and environmental standards for vibration and shock resistance.
Environmental and Safety Standards:
- Operating temperature: -40°C to +85°C
- Storage temperature: -55°C to +95°C
- Vibration: 5G @ 7–2000 Hz
- Shock: 50G @ 0.5 ms
Quality Assurance:
Manufactured under Innodisk’s ISO-certified production facilities in Taiwan, ensuring consistent quality and long-term reliability.
### 9. Additional Information
Warranty:
- 3-year limited warranty covering manufacturing defects and component reliability.
Support and Maintenance:
- Technical support available through Innodisk’s global offices (Taiwan, USA, Europe, Japan, China).
- Email support:
- Taiwan HQ: sales@innodisk.com
- USA: usasales@innodisk.com
- Europe: eusales@innodisk.com
- Japan: jpsales@innodisk.com
- China: sales_cn@innodisk.com
- Phone support available in each region.
Maintenance Recommendations:
- Periodically inspect connectors and cables for wear or corrosion.
- Ensure proper grounding to maintain ESD protection effectiveness.
- Keep firmware and drivers updated via the MyInnodisk website.
Product Lifecycle and Updates:
- Specifications subject to change without prior notice (as of January 27, 2016).
- Regular driver and firmware updates provided for compatibility with new OS versions.
Manufacturer Contact Information:
Innodisk Corporation Headquarters
5F., No. 237, Sec. 1, Datong Rd., Xizhi Dist., New Taipei City 221, Taiwan
Tel: +886-2-7703-3000
Website: [www.innodisk.com](http://www.innodisk.com)
### Summary
The Innodisk EMP2-X402-W1-A71 is a robust, industrial-grade mPCIe module that expands system connectivity by providing four configurable RS-422/485 serial ports. With its PCIe 2.0 compliance, high-speed 25 Mbps data rate, and wide temperature tolerance, it is ideally suited for embedded and industrial applications requiring reliable serial communication. The module’s flexible configuration options, strong ESD protection, and low power consumption make it a dependable solution for automation, control, and data acquisition systems.
Backed by Innodisk’s 3-year warranty and global technical support, the EMP2-X402-W1-A71 delivers long-term reliability and performance in demanding industrial environments.
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EMP2-X402_Datasheet.pdf
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