11
5.4
Extended XMODEM protocol
The Datamax
-O’Neil XMODEM software option
is designed to overcome the unreliability of data
transmission using direct infrared interface. It is intended for host computers equipped with IrDA compatible
physical interface and no IrDA software Stack.
The Datamax-O’Neil XMODEM protocol
is supported via RS232 (RS-XMODEM) or IrDA (IR-XMODEM)
interface. The XMODEM option and the communication parameters are set using on board dip switches, as
summarized in the table below.