Features
• PCIe 2.0 Gen 1 compliant
• x1 Link, dual simplex, 2.5Gbps in each direction
• Supports x1, x2, x4, x8, x16 (lane) PCI Express Bus connector keys.
• RS485 signals: DATA+ (B), DATA- (A), GND
• RS422 signal: T/R+, T/R-, RXD+, RXD-, GND
• 600W surge protection, 15 KV ESD protection for all serial ports
Applications
• Next generation Point-of-Sale Systems
• Remote Access Servers
• Storage Network Management
• Factory Automation and Process Control
System Requirements
• Windows® Server 2003, 2008, 2012
• Windows® XP, Vista, 7, 8
• Linux 2.6.27, 2.6.31, 2.6.32, 3.x.x and newer
• PCI Express-enabled system with an available PCI Express slot
Package details
• 1×PCI-E to 2 port RS422/485 serial port card
• 1×User Manual
• 1×CD Driver
<p>Q: Does this card support the Kylin system?</p><p> A: It supports Kylin, UnionTech and other Linux systems for use.</p><p>Q: Does this card require the installation of drivers? Can it be used with the Win7 system? </p><p>A: Yes, it can be used after installing the drivers. The method for installing Windows drivers can be found in the detail page introduction.</p><p>Q: Can Linux systems use it without drivers? </p><p>A: The RS232 serial card supports using the system's built-in kernel drivers, so it can be used without installing drivers. However, RS422/RS485 serial cards with PCI_E and miniPCE interfaces require the installation of drivers for use.</p><p>Q:How to simply test if the serial port is working and communicating?</p><p> <img src="/data/upload/image/20250912/1757656873115789.png" title="1757656873115789.png" alt="20250910_114545.png"/></p><p>Q: How to install drivers on Linux systems? Are there any tutorials? </p><p>A:http://www.mmui.com.cn/index.php?id=1782</p><p>Q: What is the interface definition of this serial card? </p><p>A: The pin definitions for RS422 are as follows:</p><p>1—RXD-</p><p>2—TXD+</p><p> 3—RXD+</p><p>4—TXD-</p><p>5—GND</p><p>6—Empty (VCC is not used in this product)</p><p>The pin definitions for RS485 are as follows: </p><p>1—Empty</p><p>2—TX/RXD+(A)</p><p>3—Empty</p><p>4—TX/RXD-(B)</p><p>5—GND</p><p>6—Empty</p><p>Q: How can I download the drivers? Which drivers are used? I can't find them on the official website. </p><p>A: Search for our official website's driver download address on Baidu: <a data-cke-saved-href="http://www.mmui.com.cn/index.php?catid=38" href="http://www.mmui.com.cn/index.php?catid=38">http://www.mmui.com.cn/data/upload/image/EXAR352_354_358.zip</a>. Scroll down to find EXAR/352/354/358 and download and install it.</p><p><br/></p>
Downloads
