Aviom AllFrame - Manual (Page 84)

72 C4
dio
d
igiTal
i/o C
ard
f
eaTures
ALL FRAME
™
Multi-Modular I/O System
Output Word Clock to an External Device
The Pro64 network clock, based on the sample rate currently being used, can be output to external devices using
the BNC Word Clock connection on a C4dio.
To output the current network clock:
Set the Control Master clock to Network (internal) clock. 1.
On the AllFrame, set the 2. w
OrD
C
lOCk
switch on the front of the C4dio card to the
O (Output) position.
Connect the
3. w
OrD
C
lOCk
jack on the C4dio card to the external device’s Word Clock input
using a BNC cable.
The network clock is output to the external device at the current sample rate. Changes to
4.
the network sample rate will also be sent to the C4dio Word Clock output.
AES3 Clock
A digital AES3 signal connected to inputs 1/2 on the C4dio can be used to sync the Pro64 network to an external
clock source. No audio need be present in the AES3 stream to allow it to be used as a clock source.
To Sync to AES3 Clock
To use an external AES3 clock source to sync the network:
Make the AllFrame the network’s 1. Control Master.
Connect the external device’s AES3 output to the 2. Aes3 1/2 i
N
jack on the C4dio card using
an XLR cable.
Open Pro64 Network Manager and connect to the network online.
3.
In the 4. AllFrame Device Window’s i
NPuts tO
N
etwOrk
view, turn off any sample rate
converters (SRC) that are on.
In the Overview section of the Device Window, choose the C4dio where the external AES3
5.
clock is connected from the drop-down menu labeled A
uDiO
C
lOCk
s
OurCe
in the Overview.
(Card locations are denoted with letters and clock type, e.g. AES :C)
The green
6. LED on the C4dio card next to the Aes3 1/2 i
N
jack lights solid to indicate that
the external AES3 clock is in use.
On screen, a red dot is added to the
7. I/O Cards list found in the Overview in the AllFrame’s
Device Window.
Attempting to sync to an external AES3 clock while the sample rate converters are on will cause a warning dialog
box to appear.
Turn off sample rate converters before using a C4dio card as an AES3 clock source.