SW_LocalMode - fablab-wue/piTelex GitHub Wiki
Local mode
As soon as piTelex
has a functioning connection to the teleprinter / CCU, the devices can be operated in local mode. This mode differs from the local mode that is activated on the CCU with the LT
button; in this case, the CCU does not establish a connection to piTelex, but only supplies the teleprinter with mains and line voltage.
In contrast, the local mode of piTelex simulates an active connection for CCU and teleprinter so that the functions of CCU and teleprinter can be tested.
This local mode is established on the CCU by pressing the AT
button ( --> status 'WB') and then dialing the digits 000
. piTelex accepts the call and responds with a pseudo connection setup; the CCU goes into 'A' status, the teleprinter starts up (when dialing the number switch).
This pseudo connection can be disconnected like any real connection by pressing the ST
key.