4 ports serial communication card and connector panel



  • 4 ports serial communication card and connector panel
  • Supports PCI and PCI-X Bus
  • The world’s leading 256 byte FIFO
  • Communication speed: Up to 921.6kbps
  • ±15kV Surge protection
  • Slew-Rate Limit Control


Interface Type
Specification PCI Local Base Specification Rev. 2.3
Interface RS422/RS485(Combo)
Number of ports 4
Maximum Speed Up to 921.6Kbps
Signal Lines RS422: TX+, TX-, RX+, RX-
RS485: TRX+, TRX-
Surge Protection 15kV Surge Protection
Flow Control XON/XOFF
Data crash prevent Auto Toggling
Controller SB16C1054PCI
Board Connector DB-44P (DB44 Male)
Panel Connector DE-09S (DB9 Female)
Supported OS Windows 7/8.1/10
Windows Server 2008/2012/2016
Utility TestView
Operating Environment
Operation Temperature 0 ~ 50 °C
Storing Temperature -20 ~ 80 °C
Humidity 5 ~ 95% Non-Condensing
Certificates CE, FCC, KC

Easily add additional serial ports to your system. The Multiport boards support most Windows and Linux operating systems and include 15,000 volt surge suppression eliminating blown ports. The Multi-4/LPCI includes a 4 port panel with DB9 connectors and is available in two models, RS232 and RS422/RS485. These boards are ideal for POS, hospitality, factory automation and building automation applications.

Connector Panel:

  • The Multi-4/LPCI consists of a low profile communication card and connector panel with support for either RS232 or RS422/RS485. The connector panel has 4 DB9 female connectors to protect against the pins being electrically shorted. LEDs next to each connector provide visual communication status of the ports. It is constructed of aluminum and is suitable for industrial environments.

Slew-Rate Limit Control

  • The Multi-4/LPCI is equipped with Slew Rate limit control and when enabled it minimizes EMI emissions which may cause data transmission errors. When Slew Rate is used maximum communication speed is 250Kbps. This functionality is recommended in many medical applications.