I guessed it would work with your older pluggs (mine is >25 years old!).
Looking at the log you see what the binding sends to the stick:
The is for interechno-mode send
up to the first F it is your address, however each blank is replaced by an F, and at the end the OFF command is added.
If you would know the exact command needed to be sent directly (for example by screen) we could make that up for the binding.