The ES-U-2001-S is a 1 port RS422/485 USB to serial adapter. This adapter includes an EasyMode setting by hidden DIP switch. The ES-U-2001-S offers terrific value and convenience with no need to open chassis to set operation modes, the upper case can be slid open for easy RS422, RS485 mode settings.
Adds one RS-422 or RS-485 serial port by connecting to a USB port
One DB9 male connector
No need to open chassis to set operation modes- upper case can be sliding open for easy RS-422, RS-485 mode settings