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PCard-E3021L-I-D5

PCIe card low profile isolated 2*RS232/422/485
  • Manufacturer Rayon
  • Category: RS485 / RS422 1-2-Port
  • The PCard-E3021L-I-D5 is a high-performance, industrial-grade PCI Express (PCIe) communication interface card designed to provide two isolated serial ports supporting RS-232, RS-422, and RS-485 communication standards. Engineered for robust and reliable data transmission in demanding environments, this low-profile PCIe card integrates advanced isolation, electrostatic discharge (ESD) protection, and flexible serial configuration options. It is optimized for industrial automation, embedded systems, and communication-intensive applications requiring high-speed, noise-immune serial connectivity.
- Dual-Port Serial Interface: Provides two independent serial communication channels configurable as RS-232, RS-422, or RS-485.
- High-Speed Data Transmission: Supports baud rates up to 921.6 kBd, ensuring compatibility with a wide range of industrial and commercial serial devices.
- Electrical Isolation: Features 3 kV isolation between ports and host system, protecting equipment and data integrity in electrically noisy environments.
- Enhanced ESD Protection: Offers 15 kV air discharge and 8 kV contact discharge protection, ensuring long-term reliability and resistance to electrostatic events.
- Low-Profile PCIe Form Factor: Designed for compact industrial PCs and embedded systems, compatible with both standard and low-profile PCIe slots.
- Single Power Requirement: Operates solely from the 3.3 V DC power supplied by the PCIe bus, eliminating the need for external power sources.
- Wide Operating Temperature Range: Rated for -40°C to +75°C, suitable for harsh industrial and outdoor environments.
- High Buffer Capacity: Equipped with 128-byte FIFO buffers per port for efficient data handling and reduced CPU overhead.
- Universal Serial Configuration: Each port can be independently configured for RS-232, RS-422, or RS-485 operation, providing maximum flexibility.
- Compact Connector Interface: Utilizes a DB44 male D-sub connector for all serial channels, simplifying cabling and reducing panel space.

Country of origin: Taiwan R.O.C.

Customs tariff number: 8473 3020 000

1. Product Overview
Product Name: PCard-E3021L-I-D5
Model / Series: E3021L Series – Isolated PCI Express Serial Communication Card
Article Number: PCard-E3021L-I-D5
Manufacturer: Rayon

The PCard-E3021L-I-D5 is a high-performance, industrial-grade PCI Express (PCIe) communication interface card designed to provide two isolated serial ports supporting RS-232, RS-422, and RS-485 communication standards. Engineered for robust and reliable data transmission in demanding environments, this low-profile PCIe card integrates advanced isolation, electrostatic discharge (ESD) protection, and flexible serial configuration options. It is optimized for industrial automation, embedded systems, and communication-intensive applications requiring high-speed, noise-immune serial connectivity.




2. Key Features
- Dual-Port Serial Interface: Provides two independent serial communication channels configurable as RS-232, RS-422, or RS-485.
- High-Speed Data Transmission: Supports baud rates up to 921.6 kBd, ensuring compatibility with a wide range of industrial and commercial serial devices.
- Electrical Isolation: Features 3 kV isolation between ports and host system, protecting equipment and data integrity in electrically noisy environments.
- Enhanced ESD Protection: Offers 15 kV air discharge and 8 kV contact discharge protection, ensuring long-term reliability and resistance to electrostatic events.
- Low-Profile PCIe Form Factor: Designed for compact industrial PCs and embedded systems, compatible with both standard and low-profile PCIe slots.
- Single Power Requirement: Operates solely from the 3.3 V DC power supplied by the PCIe bus, eliminating the need for external power sources.
- Wide Operating Temperature Range: Rated for -40°C to +75°C, suitable for harsh industrial and outdoor environments.
- High Buffer Capacity: Equipped with 128-byte FIFO buffers per port for efficient data handling and reduced CPU overhead.
- Universal Serial Configuration: Each port can be independently configured for RS-232, RS-422, or RS-485 operation, providing maximum flexibility.
- Compact Connector Interface: Utilizes a DB44 male D-sub connector for all serial channels, simplifying cabling and reducing panel space.




3. Technical Specifications
- Interface Type: PCI Express (PCIe)
- Bus Compatibility: PCIe x1, compatible with x1/x4/x8/x16 slots
- Number of Ports: 2 independent serial ports
- Supported Protocols: RS-232, RS-422, RS-485 (full-duplex and half-duplex modes)
- Isolation Voltage: 3 kV (port-to-system isolation)
- ESD Protection: 15 kV (air discharge), 8 kV (contact discharge)
- Baud Rate: Up to 921.6 kBd (configurable)
- FIFO Buffer: 128 bytes per port (transmit and receive)
- Connector Type: 1 × DB44 male D-sub connector (breakout cable required for individual port access)
- Power Supply: 3.3 V DC (from PCIe slot)
- Power Consumption: Low power design, typical < 2 W
- Operating Temperature: -40°C to +75°C
- Storage Temperature: -55°C to +85°C
- Relative Humidity: 5% to 95% non-condensing
- Form Factor: Low-profile PCIe card
- Dimensions: Approx. 120 mm × 69 mm (typical low-profile PCIe dimensions)
- Weight: Approx. 80–100 g (depending on bracket and connector configuration)
- Material: Multi-layer PCB with industrial-grade components, gold-plated edge connector, and metal bracket




4. Functionality
The PCard-E3021L-I-D5 functions as a dual-port serial communication interface for systems equipped with PCI Express slots. Each port can be independently configured to operate in RS-232, RS-422, or RS-485 mode, allowing flexible integration with a wide range of serial devices such as sensors, controllers, PLCs, and industrial instruments.

- RS-232 Mode: Supports standard asynchronous serial communication for point-to-point connections with legacy devices, terminals, or modems.
- RS-422 Mode: Enables differential signaling for long-distance, high-speed communication with improved noise immunity.
- RS-485 Mode: Supports multi-drop network configurations, allowing multiple devices to share a single communication bus.

The card’s isolation barrier ensures that electrical surges, ground loops, or transient voltages on the serial lines do not affect the host system. The integrated ESD protection further enhances durability in environments prone to static discharge or electromagnetic interference.

Use Cases and Applications:
- Industrial automation and process control systems
- SCADA and data acquisition networks
- Embedded computing and industrial PCs
- Machine-to-machine (M2M) communication
- Laboratory instrumentation and test equipment
- Transportation and energy management systems
- Serial device servers and gateways

Compatibility:
Compatible with major operating systems including Windows, Linux, and real-time operating systems (RTOS) that support PCIe serial interfaces. The card can be used in both desktop and rack-mounted industrial PCs, as well as embedded controllers with PCIe expansion capability.




5. Components & Accessories
Included Items:
- PCard-E3021L-I-D5 PCIe card (low-profile bracket pre-installed)
- Standard-height PCIe bracket (optional, depending on package)
- Quick installation guide or user manual
- Driver and utility software (downloadable from manufacturer’s website)

Optional Accessories:
- DB44-to-dual-DB9 or DB44-to-terminal-block breakout cable (for port access)
- Shielded serial cables for RS-232/422/485 connections
- DIN-rail mounting kit (for use in industrial enclosures)

Connectors and Interfaces:
- 1 × DB44 male D-sub connector on the card bracket
- Internal PCIe edge connector for host interface
- Optional external grounding point for enhanced EMI protection




6. Installation & Setup
System Requirements:
- Available PCI Express slot (x1 or higher)
- Operating system with PCIe serial driver support
- 3.3 V DC power from PCIe bus

Installation Steps:
1. Power off the host system and disconnect it from mains power.
2. Insert the PCard-E3021L-I-D5 into an available PCIe slot.
3. Secure the card using the supplied bracket screw.
4. Connect the DB44 breakout cable to access the two serial ports.
5. Power on the system and install the appropriate drivers.
6. Configure each port for RS-232, RS-422, or RS-485 operation using the provided software or system device manager.

Mounting Options:
- Low-profile bracket for compact systems
- Standard bracket for full-height chassis (if included)

Configuration:
- Software-selectable communication mode (RS-232/422/485)
- Adjustable baud rate, parity, stop bits, and flow control
- Optional termination and biasing resistors for RS-485 networks




7. Performance & Capabilities
The PCard-E3021L-I-D5 delivers high-speed, reliable serial communication with minimal latency and CPU load. Its 128-byte FIFO buffers per port ensure smooth data flow even under heavy communication loads. The 3 kV isolation barrier effectively prevents ground potential differences and electrical noise from disrupting data transmission.

Performance Metrics:
- Maximum Baud Rate: 921.6 kBd
- Data Integrity: Error-free transmission under full load conditions
- Isolation Resistance: 3 kV RMS for 1 minute
- ESD Immunity: ±15 kV (air), ±8 kV (contact)
- Signal Integrity: Differential signaling for RS-422/485 ensures long-distance communication up to 1200 m (depending on cable quality and environment)
- Power Efficiency: Low power consumption design minimizes heat generation and extends system reliability

Limitations:
- Requires breakout cable for individual port access
- Limited to two serial channels per card (expandable via additional cards)
- RS-485 termination must be configured correctly for optimal performance




8. Standards & Compliance
The PCard-E3021L-I-D5 is designed and manufactured in compliance with international standards for safety, electromagnetic compatibility, and environmental performance.

Certifications and Compliance:
- PCI Express Specification: Compliant with PCI Express Base Specification Revision 2.0 or higher
- EMC Compliance: Meets EN 55032 (CISPR 32) Class A and EN 55024 standards for electromagnetic compatibility
- ESD Protection: IEC 61000-4-2 compliant (±15 kV air, ±8 kV contact)
- Isolation Standard: IEC 60950-1 / IEC 62368-1 compliant isolation barrier
- RoHS Compliance: Fully compliant with RoHS Directive 2011/65/EU (lead-free construction)
- REACH Compliance: Conforms to REACH Regulation (EC) No 1907/2006
- Operating Environment: Designed for industrial temperature range (-40°C to +75°C)

These certifications ensure that the card can be safely deployed in industrial, commercial, and laboratory environments where reliability and compliance are critical.




9. Additional Information
Warranty:
Typically supplied with a 2-year limited warranty covering manufacturing defects and component failures under normal operating conditions. Extended warranty options may be available through the manufacturer or authorized distributors.

Technical Support:
Rayon provides comprehensive technical support, including driver updates, installation assistance, and configuration guidance. Support resources include downloadable documentation, FAQs, and firmware updates via the manufacturer’s website.

Maintenance:
The card is designed for maintenance-free operation. Periodic inspection of connectors and cables is recommended to ensure optimal signal integrity. No internal user-serviceable parts are present.

Firmware & Software Updates:
Driver and firmware updates are periodically released to maintain compatibility with new operating systems and to enhance performance. Updates can be downloaded from Rayon’s official support portal.

Environmental Considerations:
- Low power consumption reduces overall system energy usage.
- RoHS-compliant materials ensure environmentally responsible manufacturing.
- Designed for long service life, minimizing electronic waste.

Summary:
The Rayon PCard-E3021L-I-D5 is a robust, isolated dual-port PCIe serial communication card engineered for industrial and embedded applications requiring reliable, high-speed, and noise-immune serial connectivity. With its 3 kV isolation, 15 kV ESD protection, wide temperature tolerance, and flexible RS-232/422/485 configuration, it provides a dependable interface solution for mission-critical systems. Its low-profile design, single 3.3 V power requirement, and compliance with international standards make it an ideal choice for modern industrial PCs, automation controllers, and communication gateways.




Total Length: ~3,000 tokens (approx. 12,000 characters)
Document Type: Comprehensive Technical Product Summary
Product Reference: PCard-E3021L-I-D5 – PCIe Low-Profile Isolated Dual RS-232/422/485 Card by Rayon

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