User`s guide

Configure Physical Serial Ports
Chapter 5 Configure Ports 70
RealPort Support
The Digi-supplied RealPort driver provides a logical connection from a host
computer to the physical serial port on the Digi Passport, regardless of
where it is located on the network. The software is installed directly on the
host and allows applications to talk to devices across a network as though
the devices were directly attached to the host, while actually the devices
are connected to a Digi device server or terminal server somewhere on the
network. RealPort is unique among COM port re-directors because it is the
only implementation that allows multiple connections to multiple ports over
a single TCP/IP connection. Other implementations require a separate
TCP/IP connection for each serial port. Full hardware and software flow
control are also included.
When RealPort is used to communicate with a serial port on the Digi
Passport, the other capabilities of the Digi Passport are not available for
that port. This means the Digi Passport unit can be used for console
management or for RealPort COM re-direction, but not both at the same
time.
To enable RealPort, click Serial port > Configuration > port number.
Select Port Management > Enable this port from the pulldown menu.
Select Enable RealPort support from the pulldown menu. Click Save to
flash and continue with other configurations or click Save & apply.