User's Guide
WCM MKII © RME
8
9.4 Multi-card Operation
The WCM supports Multi-card operation. Up to three cards of the DIGI96 series can be connec-
ted to and synchronized from the
WCM
.
Please note when using the word clock output and more than one card, that only one card
can be master!
Because of this the
WCM
has three connectors named
ST 6
, but only one labelled
ST 7
. The
DIGI
connected to
ST 7
will be the master for the whole word clock system. The other cards
inside the computer won't get a synchronous clock and have to be synchronized to the master.
This is easy to accomplish in several ways.
Example 1:
All
DIGI
s digital inputs are connected to other devices synced to the word clock
net.
Activate the corresponding input of each card in its Settings dialog, and activate the mode
AutoSync for all cards except the master card, which stays in 'Word Clock' mode.
Example 2:
Only the outputs of the
DIGI
s are connected to other devices.
Connect the internal Sync-Out of the master card to the Sync-In (CD-ROM) of the second card,
activate its internal input and AutoSync mode. Next connect the third card in the same way,
from the second's card Sync-Out to the third's card Sync-In. Configure this card like the second
one. The necessary 2-wire cables are the ones supplied with the
DIGI
cards. Another possibil-
ity is to use the
WCM's
comfortable test mode.
Example 3:
All
DIGI
s are correctly connected to the Word Clock Module.
As already described the
WCM
can also be used as Masterclock. Activate the Test Mode by
pushing the test switch, so that the red LED lights up. Next activate the mode 'Word Clock' in
all card's Settings dialogs. Now all cards should show 'Word Clock' in the third line of 'Output
Status'.
