4 ports serial communication card and connector panel, Supports PCI and PCI-X Bus, The world’s leading 256 byte FIFO

Item number VAR-827001579

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Content 1 piece

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Multi-4/LPCI COMBO is equipped with SB16C1054PCI, powerful semiconductor designed by SystemBase. The SB16C1054PCI semiconductor is a UART designed for PCI Bus which has the 256 byte FIFO, the largest in the world. There are no overrun when communicating with 921.6kbps. It has all the necessary components for the serial communication that the developers do not require additional components to design the product. It is ideal for POS, medical use, factory automation and building automation field.

Auto Toggling

Multi-4/LPCI COMBO has a built-in hardware feature that performs automatic toggling to prevent devices from sending data at the same time causing a crash. This operation is crucial when multiple devices are connected to prevent electrical collisions that lead to errors and unstable communication.

Slew-Rate Limit Control

Multi-4/LPCI COMBO is equipped with Slew Rate limit control for RS-422/485 interface and when enabled it minimizes EMI emissions which may cause data transmission errors. When Slew Rate is used maximum communication speed is 250kbps. This function is recommended in many medical applications.

Item ID 101333
Condition New
Manufacturer SystemBase
Manufacturing country Democratic People's Republic of Korea
Content 1 piece


Interface Type

  Specification PCI Local Base Specification Rev. 2.3


  Interface RS422/RS485(Combo)
  Number of ports 4
  Maximum Speed 921.6Kbps
  Signal Lines – RS422: TXD+, TXD-, RXD+, RXD-
– RS485: TRXD+, TRXD-
  Surge Protection 15kV Surge Protection
  Flow Control RTS/CTS, XON/XOFF


  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