Cadac X16 - Manual (Page 17)

3-15
Revision MM2006-1 X16 MADI Merge Unit
If using coaxial cables within the MADI system, then these should be
fitted with male BNC connectors. Fix these onto the appropriate mat-
ing BNC connector on the X16 rear panel and lock them into place
by giving the connector shell a quarter turn (clockwise.)
3.3.4 Wordclock Master/Slave
A single BNC connector located on the X16 rear panel can operate
either as a wordclock master or slave. See
3.2 X16 Rear Panel . The
choice of whether this connector is going to act as a master or slave
is dependent on the overall system design and how all the digital
equipment within the audio system will be synchronised. If the X16
is to slave to an external workclock source then connect a 75 Ohm
coaxial cable, preferably directly from the wordclock master, to the
X16 Wordclock Master/Slave BNC connector and lock it into place
by giving the connector shell a quarter turn (clockwise.)
If the X16 is to act as the wordclock master then connect the 75 Ohm
coaxial cable and run it to the wordclock input of the receiving de-
vice.
NOTE: Do not forget to set the X16 to the correct synchronisa-
tion mode. See
3.4 Configuring the X16 .
NOTE: If the X16 is either the last in a chain of devices, or the
only unit to receive an external wordclock synchronisation
source, then the 75 Ohm termination will need to be switched
into circuit. See
3.3.4 Wordclock Master/Slave
3.3.5 Buffered Wordclock Outputs 1 - 4
The X16 is designed to provide four M16s, or other devices, with
high quality wordclock sources designed to improve overall audio
performance. These wordclock outputs connect directly to the
M16’s, or other device’s wordclock input connectors.
NOTE: If the device receiving the X16 wordclock source is fitted
with just one BNC connector, make sure that it is set to Slave.
NOTE: If no 75 Ohm termination switch is provided on the re-
ceiving device then a 75 Ohm load should be fitted to a BNC ‘T’
piece.
Connect a 75 Ohm coaxial cable to each of the wordclock outputs on
the X16 (making sure to securely lock them into place by giving the
connector shells a quarter turn clockwise) and repeat the process for
the wordclock inputs on the receiving devices.