The UMD Model 364 keyboard wedge provides a serial port between a PC and its keyboard. Operation is transparent to the normal function of the keyboard.
Serial data is accepted by the PC, as if typed on the keyboard.
This means there is no need to upgrade software when adding bar code scanners or magnetic card readers to a system. The serial port is configured to accept asynchronous RS232 input at a baud rate of 9600. Other options are available on request. F00designates firmware version 00. AT keyboard scan codes.