Moxa Technologies NPort 5110 Series - Manual (Page 22)

NPort 5110 Series User’s Manual Choosing the Proper Operation Mode
4-4
Ethernet Modem Mode
The Ethernet Modem operation mode is designed for use with legacy operating systems, such as
MS-DOS, that do not support TCP/IP Ethernet. By connecting one NPort 5110’s serial port to the
MS-DOS computer’s serial port, it is possible to use legacy software originally designed to transmit
data via modem, but now transmit the data over the Ethernet.