Use the information on this page to determine the names of the devices created for each Digi adapter supported by the Linux driver.
The devices will be created in /dev/dg/dgdm, linked to /dev, and will have the following format:
Dial-in devices: ttyGa_xx, where a is the adapter number and xx is the device number.
Dial-out devices: cuga_xx, where a is the adapter number and xx is the device number.
DigiPRINT transparent printer devices: lpGa_xx, where a is the adapter number and xx is the device number.
Device and adapter numbers start at zero.
Port 4 of Adapter 3 is /dev/cug2_03. The same port with modem control is /dev/ttyG2_03. The DigiPRINT device is /dev/lpG2_03.