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...
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.
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.
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.
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...
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...
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