Yamaha mLAN Manual Book page 21

The mLAN connection data is stored by the receiving device. Even when a bus reset occurs or the
power is turned off, the mLAN connection data is preserved.
After a bus reset occurs or the power is turned on, a receiving device will search for the transmit-
ting device based on its stored mLAN connection data, and will re-establish the mLAN connec-
tions.
NOTE
An ID unique to each device is embedded in each node. The receiving
device remembers the transmitting device by this ID. This means that even if
the model of device is identical, the mLAN connection will not be restored if
the ID is different.
For example in the mLAN connection example shown above, the 02R
remembers that it received data from a certain A5000, but the mLAN con-
nection will not be restored if a different A5000 is connected.
If the transmitting device is not found, the mLAN connection data will be maintained, but the
mLAN connection will not be restored.
NOTE
The mLAN connection will be restored when the transmitting device that
could not be found is then connected. However if a different mLAN connec-
tion is established before this occurs, the mLAN connection will not be
restored.
For example in the case of the above mLAN connection example, the 02R
will preserve the mLAN connection data even when the A5000 is discon-
nected. When the A5000 is connected once again, the connection will be
restored. However if, while the A5000 is disconnected, the user establishes
an mLAN connection to a different instrument on channel 2 (the mLAN plug
on which an mLAN connection had been established with the A5000), the
mLAN connection will be overwritten. Subsequently even if the instrument is
disconnected and the A5000 is reconnected, the 02R will remember the
mLAN connection with the instrument. Accordingly the mLAN connection
with the A5000 will not be recovered.
Technical Explanations
21