Studer Vista 1 Operating Instructions Manual page 369

Vista 1 Digital Mixing System
In the next step a D21m frame is selected (the external frame Ext in our
example):
Now select the appropriate interfaces (e.g. MADI), one by one, for every
single physical audio connection.
When finished, click the Save IO Sharing button at the right-hand edge of
the Configuration Tool GUI.
This procedure only needs to be done once during system setup. All these tie
line configuration settings are saved on the consumer side and will remain
after a system restart.
RELINK 8-13
Document generated: 18.04.17 SW V5.3