Comprehensive Product Summary – SUNIX IPC‑E2002 PCI‑Express 2‑Port RS‑422/485 Serial Card

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### 1. Product Overview

Product Name: PCI‑Express 2‑Port RS‑422/485 Professional Serial Card
Model: IPC‑E2002
Series: Industrial Multi‑Port Serial Communication Boards (PCI‑Express Series)
Article Number: IPC‑E2002
Manufacturer: SUNIX Co., Ltd.

The SUNIX IPC‑E2002 is a professional‑grade, dual‑port RS‑422/485 serial communication card designed for industrial and embedded computing environments. It connects via a single‑lane PCI‑Express interface and provides two independent high‑speed serial ports supporting both RS‑422 full‑duplex and RS‑485 half‑duplex communication modes. The card integrates SUNIX’s proprietary AHDC/CS™ (Auto Hardware Direction Control/Carrier Sense) technology and automatic RS‑422/485 detection and switching, ensuring reliable, jumper‑free configuration and precise signal control. It is engineered for industrial automation, data acquisition, and control systems requiring robust, low‑latency serial connectivity.

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### 2. Key Features

- Dual Independent Serial Ports: Two fully isolated RS‑422/485 ports accessible via a DB‑44 female connector and breakout cable.
- PCI‑Express Interface: Compliant with PCI Express Bus Specification Revision 1.0a; operates on a single‑lane (x1) PCI‑E slot.
- High‑Speed Communication: Supports baud rates from 75 bps up to 921.6 Kbps per port.
- 64‑Byte Hardware FIFO: Each port includes a 64‑byte hardware FIFO buffer, 16C750‑compatible, ensuring smooth data flow and reduced CPU overhead.
- Auto RS‑422/485 Detection and Switching: Automatically detects and switches between RS‑422 full‑duplex and RS‑485 half‑duplex modes without manual jumper settings.
- SUNIX AHDC/CS™ Technology: Provides automatic RS‑485 signal direction control with carrier sense to prevent data collisions and ensure precise timing.
- Embedded 15 kV ESD Protection: Built‑in electrostatic discharge protection on all signal lines for enhanced reliability in industrial environments.
- Unlimited Card Scalability: Multiple IPC‑E2002 cards can be installed in a single system, limited only by available PCI‑E slots.
- Software Flow Control: Supports XON/XOFF software flow control for reliable data transmission.
- Wide OS Compatibility: Drivers available for Windows 2000/XP/2003/Vista (32/64‑bit), DOS, Linux 2.4/2.6, and SCO OpenServer 5.06/5.07.
- Compact Design: Supplied with both standard (121 mm) and low‑profile (79.2 mm) brackets for flexible installation in various chassis types.
- Industrial‑Grade Reliability: Operating temperature range from 0°C to 70°C and storage range from ‑40°C to 85°C.
- Long‑Term Warranty: Backed by a 5‑year manufacturer warranty.

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### 3. Technical Specifications

Interface & Bus:
- PCI Express Bus Specification Revision 1.0a
- 1‑Lane PCI‑Express (x1) slot compatible with x1/x4/x8/x16 connectors

Ports:
- 2 independent RS‑422/485 serial ports
- Connector: DB‑44 female on card
- Breakout cable: DB‑44 male to dual DB‑9 or DB‑25 male connectors (40 cm or 100 cm length options)

Communication Parameters:
- Baud Rate: 75 bps to 921.6 Kbps
- Data Bits: 5, 6, 7, or 8
- Stop Bits: 1, 1.5, or 2
- Parity: None, Even, Odd, Space, or Mark
- Flow Control: XON/XOFF (software)
- FIFO Buffer: 64‑byte hardware FIFO, 16C750 compatible
- IRQ & I/O Address: Assigned automatically by system BIOS/OS

Signal Pin Assignments:
- RS‑422: TxD+, TxD‑, RxD+, RxD‑, GND
- 4‑Wire RS‑485: TxD+, TxD‑, RxD+, RxD‑, GND
- 2‑Wire RS‑485: Data+, Data‑, GND

Electrical & Protection:
- ESD Protection: 15 kV embedded protection on all signal lines
- Surge Protection: Optional in SI variant (600 W peak per IEC 61000‑4‑5)
- Isolation: Optional 2.5 kV isolation (SI variant)
- Power Requirements: Draws power directly from PCI‑Express slot (3.3 V)

Physical Characteristics:
- Dimensions: 64 mm (H) × 90 mm (L)
- Brackets: Standard 121 mm and low‑profile 79.2 mm included
- Weight: Approximately 120 g (card only)
- Material: Multi‑layer PCB with gold‑plated edge connector

Environmental Conditions:
- Operating Temperature: 0°C to 70°C
- Storage Temperature: ‑40°C to 85°C
- Operating Humidity: 5% to 95% RH (non‑condensing)

Regulatory Compliance:
- CE and FCC Class B certified

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### 4. Functionality

The IPC‑E2002 functions as a high‑performance serial communication interface for industrial PCs and embedded systems. It provides two independent RS‑422/485 ports that can operate in either full‑duplex (RS‑422) or half‑duplex (RS‑485) modes. The card’s intelligent design eliminates the need for manual jumper configuration through its Auto Detect and Switching feature, which automatically identifies the connected interface type and adjusts signal routing accordingly.

The AHDC/CS™ (Auto Hardware Direction Control/Carrier Sense) mechanism ensures that the RS‑485 transceiver enables transmission only when the UART is ready to send data and the bus is idle, preventing data collisions in multi‑drop networks. This makes the card ideal for applications requiring deterministic communication timing, such as industrial automation, SCADA systems, and process control.

Typical Use Cases:
- Industrial automation and control systems
- Data acquisition and monitoring
- Building management systems (BMS)
- Point‑of‑Sale (POS) and kiosk systems
- Medical instrumentation and healthcare data systems
- Factory equipment communication and PLC interfacing
- Transportation and logistics control networks

Compatibility:
The IPC‑E2002 is compatible with all major operating systems and supports both 32‑bit and 64‑bit architectures. It integrates seamlessly with Intel® and AMD® platforms and can coexist with other PCI‑E devices without resource conflicts.

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### 5. Components & Accessories

Included in Package:
1. IPC‑E2002 Serial Communication Board (1‑Lane PCI‑Express card)
2. Connection Cable: DB‑44 male to dual DB‑9 or DB‑25 male connectors (40 cm or 100 cm)
3. Brackets:
- Standard bracket (121 mm)
- Low‑profile bracket (79.2 mm)
4. Driver CD: Includes Windows, Linux, and DOS drivers
5. Quick Installation Guide
6. User Manual

Optional Accessories:
- Extended‑length connection cables (custom lengths)
- Surge and isolation variant (IPC‑E2002SI) for high‑noise environments
- Additional DB‑9/DB‑25 breakout cables for alternate connector configurations

Connectors:
- DB‑44 female on card
- DB‑9 or DB‑25 male connectors on breakout cable

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### 6. Installation & Setup

Hardware Installation Steps:
1. Power off the host computer and disconnect it from the power source.
2. Remove the system cover and locate an available PCI‑Express slot.
3. Remove the slot’s metal cover plate.
4. Insert the IPC‑E2002 card firmly into the PCI‑E slot and secure it with a screw.
5. Attach the appropriate bracket (standard or low‑profile) as required.
6. Connect the DB‑44 breakout cable to the card’s connector.
7. Replace the system cover and reconnect power.
8. Boot the system; the operating system will automatically detect the new hardware.

Software Installation:
- Windows: Insert the driver CD and follow the “Found New Hardware” wizard. Drivers are located under `\Windows\2K&XP&2003&Vista_32bit` or `\Windows\XP&2003_64bit`.
- Linux: Extract and install the driver package (e.g., `matrix_2.6_Vx.xx.tgz`) using `make install` and load the module with `modprobe sunix_matrix`.
- DOS/SCO: Use provided driver utilities for legacy systems.

Configuration:
- COM port numbers and FIFO settings can be adjusted via Device Manager (Windows) or system configuration tools (Linux).
- The card supports automatic IRQ and I/O address assignment, eliminating manual configuration.
- RS‑422/485 mode switching is automatic; no jumpers or DIP switches are required.

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### 7. Performance & Capabilities

Data Throughput:
Each port supports up to 921.6 Kbps, with low latency and minimal CPU utilization due to the 64‑byte FIFO buffer and single‑chip UART design.

Signal Integrity:
The embedded 15 kV ESD protection and optional 600 W surge suppression ensure stable operation in electrically noisy environments. The AHDC/CS™ technology further enhances communication reliability by preventing bus contention.

Scalability:
An unlimited number of IPC‑E2002 cards can be installed in a single system, limited only by available PCI‑E slots. This allows large‑scale serial expansion for multi‑device industrial networks.

Efficiency:
The single‑chip Matrix UART controller minimizes power consumption and improves response time, making the card suitable for real‑time control and low‑power embedded systems.

Limitations:
- Maximum baud rate limited to 921.6 Kbps per port.
- Hardware flow control (RTS/CTS) not supported on this RS‑422/485‑only model (available on RS‑232/422/485 combo models).
- Isolation and surge protection are optional (SI variant required for those features).

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### 8. Standards & Compliance

Electrical & Interface Standards:
- PCI Express Bus Specification Revision 1.0a
- RS‑422 and RS‑485 EIA/TIA standards compliant
- IEC 61000‑4‑5 surge protection standard (SI version)

Regulatory Certifications:
- CE (Conformité Européenne)
- FCC Class B (Federal Communications Commission, USA)

Environmental & Safety Compliance:
- RoHS compliant (lead‑free manufacturing)
- Operating temperature and humidity ratings suitable for industrial environments

Industry Standards Supported:
- UART 16C750 compatibility
- XON/XOFF software flow control standard
- Compatible with Intel® and AMD® 32/64‑bit architectures

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### 9. Additional Information

Warranty:
- 5‑year limited hardware warranty covering manufacturing defects and component failures under normal operating conditions.

Technical Support & Updates:
- Email: info@sunix‑ncci.com.tw
- Website: [www.sunix‑ncci.com.tw](http://www.sunix-ncci.com.tw)
- Provides driver updates, firmware revisions, and technical documentation.

Maintenance:
- No periodic maintenance required.
- Keep connectors clean and free from dust.
- Avoid exposure to moisture, vibration, or magnetic interference.
- Ensure proper grounding when used in industrial environments.

Product Variants:
- IPC‑E2002: Standard 2‑port RS‑422/485 PCI‑Express card.
- IPC‑E2002SI: 2‑port RS‑422/485 PCI‑Express card with 600 W surge protection and 2.5 kV isolation for high‑noise or high‑voltage environments.

Lifecycle & Reliability:
- Designed for 24/7 industrial operation.
- Mean Time Between Failures (MTBF) exceeds 100,000 hours under typical conditions.
- Backed by SUNIX’s long‑term product support and driver maintenance program.

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### Summary

The SUNIX IPC‑E2002 is a robust, high‑performance PCI‑Express serial communication card engineered for industrial and embedded applications requiring reliable RS‑422/485 connectivity. Its dual‑port configuration, automatic interface detection, and advanced AHDC/CS™ direction control technology deliver exceptional communication stability and ease of integration. With comprehensive OS support, embedded ESD protection, and flexible installation options, the IPC‑E2002 provides a scalable, cost‑effective solution for expanding serial communication capabilities in modern industrial systems. Its 5‑year warranty and compliance with CE/FCC standards further underscore its reliability and suitability for mission‑critical environments.