Lekuo 8-Port RS-422/485 PCIe Serial Card

Model

IO-PCE358A-8S

Chipset

EXAR XR17V358

Input Interface

PCIe (PCI Express x1; compatible with x4/x8/x16 slots)

Output Interface

RS-422 / RS-485 (8 independent ports)

Data Transfer Rate

Up to 921.6 kbps

Surge Protection

500 W per line

ESD Protection

20 kV full-signal

Communication Modes

Full-duplex (RS-422), Half-duplex (RS-485); auto-switching, no jumpers required

Max Transmission Distance

Up to 1200 m (at 9600 bps)

UART Compatibility

16550-compatible registers, 256-byte FIFO (send/receive)

Flow Control

XON/XOFF software flow control

Auto Resource Allocation

IRQ and I/O automatically assigned

Baud Rate Range

300 bps to 921,600 bps

Data Bits

5, 6, 7, 8

Parity

Even, Odd, Mark, Space, None

Stop Bits

1, 1.5, 2

Operating Temperature

–40 °C to 85 °C

Included Accessories

Short bracket, VHDCI68 to 8×DB9 breakout cable.

Features

• PCIe 2.0 Gen 1 compliant

• x1 Link, dual simplex, 25Gbps in each direction

• RS485 signals: DATA+ (B), DATA- (A), GND

• RS422 signal: T/R+, T/R-, RXD+, RXD-, GND

• Working mode: asynchronous working、point-to-point or point-to-multipoint 2 wires (half duplex) 4 wires (full duplex)

• Transmission distance: RS-485/422 port:1.2km (300bps-921600bps)

• Transmission media: twisted-pair cable or shielded cable

• Interface protection:TVS on each signal of RS42/485 port - for the protection of 400W Voltage Surge and +/-20kV ESD;

• Direction control: Adopt the technology which automatically controls the data-flow direction、automatically distinguish and control the data-transmission direction;

• UART interface support for 7 or 8 data bits,1 or 2 stop bits and even/odd/mark/space/none

• Flow control none,hardware and xon/xoff

• Load capability; Support point-to-multipoint transmission. Each converter can connect 32 RS-422 or RS-485 interface equipment

• Extended operating temperature range; -40 to 85⁰C

System Requirements

• Windows® Server 2003, 2008, 2012

• Windows® XP, Vista, 7, 8,8.1,10

• Linux 2.6.27, 2.6.31, 2.6.32, 3.x.x and newer

• A available PCI Express slot

Package Contents

• 1 x RS422/485 8-Port PCIe Card

• 1 x User Manual

• 1 x Low Profile bracket

• 1 x VHDCI68 to 8x DB9 Cable

Related Downloads

Driver Download

1. IO-PCE358A-8S

Download

❓ Does this card support the Kylin system?

✅ It supports Kylin, UnionTech and other Linux systems for use.

❓ Does this card require the installation of drivers? Can it be used with the Win7 system?

✅ Yes, it can be used after installing the drivers. The method for installing Windows drivers can be found in the detail page introduction.

❓ Can Linux systems use it without drivers?

✅ 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.

❓How to simply test if the serial port is working and communicating?

❓ How to install drivers on Linux systems? Are there any tutorials?

✅http://www.mmui.com.cn/index.php?id=1782

❓ What is the interface definition of this serial card?

✅ The pin definitions for RS422 are as follows:

1—RXD-

2—TXD+

3—RXD+

4—TXD-

5—GND

6—Empty (VCC is not used in this product)

The pin definitions for RS485 are as follows:

1—Empty

2—TX/RXD+(A)

3—Empty

4—TX/RXD-(B)

5—GND

6—Empty

❓ How can I download the drivers? Which drivers are used? I can't find them on the official website.

✅ Search for our official website's driver download address on Baidu: http://www.mmui.com.cn/data/upload/image/EXAR352_354_358.zip. Scroll down to find EXAR/352/354/358 and download and install it.