User`s guide

Port Profiles
40 Chapter 3 Configure Network and Serial Ports
Modem Port Profiles
There are 3 types of modem port profiles:
• Modem Emulation
• Modem
• Internal Modem
Modem Emulation Port Profile
The Modem Emulation port profile allows you to configure the serial port to
act as a modem. The Digi device emulates modem responses to a serial
device and seamlessly sends and receives data over an Ethernet network
instead of a PSTN (Public Switched Telephone Network). The advantage
for a user is the ability to retain legacy software applications without
modification and use a less expensive Ethernet network in place of public
telephone lines.
For more details about modem emulation and descriptions of the
commands that can be issued, see the chapter of the Digi One and
PortServer TS Family Command Reference titled “Modem Emulation
Commands.”