digictl - control Digiboard devices
The following flags are recognized:
When ALTPIN is enabled, the CD and DSR lines are logically reversed. This is useful when wiring serial ports to an 8 way RJ45 cable (full 10 way RJ45 cables are quite rare).
A single ALTPIN setting applies to both of the callout and callin devices.
It is preferable to reinitialize the card rather than reload the entire digi module as reinitialization only affects the specified board rather than affecting all attached boards.