Grass Valley Profile Mix Effects Upgrad 100 Fibre Channel - Manual (Page 48)

PDR 100 Fibre Channel Installation
48 PDR 100 Fibre Channel Installation
Audio Clock Cabling
This section provides some general rules about audio clock cabling. Audio clock
signals from the appropriate video board synchronize the audio to the video during
Record. Internal cabling between connectors on the top of the video boards and
connectors on the top of the audio boards provide the clock signals to the audio
boards.
In general, the video board in the lowest numbered slot provides the audio clock
signal to an Audio I/O board, the video board in the next lowest numbered slot
provides the audio clock signal to another Audio I/O board, etc.
Figure 13 shows an example of internal audio clock cabling. In Figure 13, Serial
I/O boards, installed in slots J7 and J10, are the only video boards. The audio clock
cable connections are:
• Channel 1 of the Serial I/O board in slot J7 to Audio 1 (PLAY) on the Audio
I/O in slot J8
• Channel 2 of the Serial I/O board in slot J7 to Audio 2 (PLAY) on the Audio
I/O in slot J9
• Channel 1 of the Serial I/O board in slot J10 to Audio 3 (RECORD) on the
Audio I/O in slot J11
• Channel 2 of the Serial I/O board in slot J10 to Audio 4 (RECORD) on the
Audio I/O in slot J12
• PLAY from all four Audio I/O boards to the system clocks on the RefGen
board.
Note that Figure 13 is an example with video boards only in slots J7 and J10. If
you have other video boards in lower numbered slots, you will have to determine
how you want to set your system up. You will have to remove any unused clock
cables and you may have to move boards around to accommodate your setup.
Also note that you must be sure to connect audio sources associated with a video
board to the correct XLR connectors on the audio breakout box.