RFC 2217
Use the RFC 2217 protocol to access serial devices over the network. RFC 2217 implementations enable applications to set the parameters of remote serial ports (for example, baud rate or flow control), detect line signal changes, as well as receive and transmit data. The configuration information provided in this section applies to Digi device functioning as RFC 2217 servers. If using the RFC 2217 protocol, do not modify the port settings from the defaults. If the port settings have been changed, restore the factory default settings (see Factory default settings). No additional configuration is required.