That is done...
Scope is master, A16 Z-Link-slave,
Yamaha 01V is slave to ADAT Option.
If I leave out the ADAT expansion and connect the 01V ADATs to the P2 ADAT IO Plate and use only 8 Channels from the A16 via ZLink,
everything works smoothly... Doesn't matter which port of the A16, both A&B work correctly)
But to get the whole picture:
The working setup looks like this:
1 PC with P2 (ADAT), P2 (XTC) and Luna (without expansion) and set to MASTER
1 MacPro with RMEs Digiface and set to Autosync (prefered source is WC from A16,
but it works also without the wc connection using ADAT sync, perhaps even better?)
Pulsar2 ADAT IOs:
A I+O to RME Digiface A
B I+O to RME Digiface B
C I+O to Yamaha 01V
Luna:
ZLink to A16 A (or B, both checked)
(A16 WC out to Digiface WC in)
SPDIF out to Mindprint DI-Port (Slave)
If I connect the ADAT expansion and use the second ZLink port for the second A16 port and the first or second ADAT port for connecting the Yamaha 01V,
all Luna ins suffer from crackling... The P2 ADAT ins work perfectly (doesn't matter if Digiface or 01V is connected)...
To complete it, with expansion but no ZLink connections, the ADAT Ins of the expansion are crackled... (to be sure, I even removed the A16-Digiface WC connections and set the Digiface to ADAT-Autosync).
So, I think the expansion is broken...

Or am I wrong somewhere?
Thanks for your efforts, guys!
Perhaps it's better to move this one to problem solving, isn't it?
Cheers,
Jan