User guide

24 Chapter 5 Configuring Advanced Functions
TCP Sockets Profile
This profile allows serial devices to communicate over a TCP network. The
TCP Server allows other network devices to initiate a TCP connection to
the serial device attached to the serial port of the Digi device server. The
TCP Client allows the Digi device server to automatically establish a TCP
connection to an application or a network.
Note: If using the RFC 2217 protocol, do not modify the port settings from the
defaults.
Note: RFC 2217 Support
Digi device servers support RFC 2217, an extension of the Telnet protocol
used to access serial devices over the network. RFC 2217 implementations
enable applications to set the parameters of remote serial ports (baud rate,
flow control, etc.), detect line signal changes, as well as receive and transmit
data. The configuration information provided in this section applies to device
servers functioning as RFC 2217 servers. If you have altered the device
server, restore the factory default settings following the procedure in Chapter
3. No additional configuration is required.
UDP Sockets Profile
This profile allows serial devices to communicate using UDP. The UDP
Server configuration allows the serial port to receive data from one or more
systems or devices on the network. The UDP Client configuration allows
the automatic distribution of serial data from one host to many devices at
the same time using UDP sockets. This is also referred to as UDP
Multicast.