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USB-4SERIAL
User Manual
olimex.com
Rev.1.0 May 2023
1

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Summary of Contents for OLIMEX USB-4SERIAL

  • Page 1 USB-4SERIAL User Manual olimex.com Rev.1.0 May 2023...
  • Page 2: Table Of Contents

    Table of Contents Introduction to USB-4SERIAL........................3 USB-4SERIAL features........................4 Order codes for USB-4SERIAL and accessories:.................5 HARDWARE.............................6 USB-4SERIAL layout:..........................7 USB-4SERIAL schematic:........................8 USB-4SERIAL jumpers........................9 SOFTWARE:............................10 Revision History............................11...
  • Page 3: Introduction To Usb-4Serial

    Introduction to USB-4SERIAL USB-4SERIAL is Open Source Hardware Industrial grade board which adds Four Serial ports to any computer with USB port. The First one of these Four Serial ports have RTS / CTS control while the other three are only with Tx and Rx signals.
  • Page 4: Usb-4Serial Features

    USB-4SERIAL features • USB-C High Speed USB 2.0 connector for powering the board and communication • The serial ports can be with baud rate up to 12Mbps on the TTL connector and up to 115200 bpx on RS232 levels connectors.
  • Page 5: Order Codes For Usb-4Serial And Accessories

    Order codes for USB-4SERIAL and accessories: USB-4SERIAL industrial grade -40+85C board CABLE-USB-A-C-1M USB-A to USB-C cable 1 meter long...
  • Page 6: Hardware

    HARDWARE...
  • Page 7: Usb-4Serial Layout

    USB-4SERIAL layout: RS232 Serial1 RS232 Serial2 RS232 Serial3 RS232 Serial4 RS485 RTS3/GPIO TTL Serial1 USB-C TTL Serial4 RS232/RS485 Jumper TTL Serial2 TTL Serial3 Select Jumper RS485 config Jumper...
  • Page 8: Usb-4Serial Schematic

    USB-4SERIAL schematic: USB-4SERIAL is Open Source Hardware designed with KiCAD, the source files are on GitHub the Latest schematic in PDF format is here.
  • Page 9: Usb-4Serial Jumpers

    USB-4SERIAL jumpers RS232/RS485 Jumper 1-2 selects RS232 function for Serial4 2-3 selects RS485 function for Serial4 RS485 Jumper 1-2 Pull down resistor to RS485 B node 3-4 Pull up resistor to RS485 A node 5-6 Terminal Resistor between A-B RTS3/GPIO Jumper...
  • Page 10: Software

    SOFTWARE: Linux drivers: You need to download and install the drivers from GitHub. When USB-C is plug Four new serial ports will be visible in /dev/tty* Windows drivers: Usually are not necessary, When USB-C is plug Four COM ports will be visible in the Windows Device Manager...
  • Page 11: Revision History

    Revision History Revision 1.0 May 2023...

Table of Contents