Grass Valley DVCPRO Board Upgrade - Manual (Page 16)

DVCPRO Board Installation
16 DVCPRO Upgrade Installation
DVCPRO Operational Considerations
This section describes DVCPRO operational issues which you need to consider
when placing your Profile system back into operation after completing the
upgrade. These include:
• DVCPRO System Timing Considerations
• Restrictions When Using JPEG and DVCPRO
DVCPRO System Timing Considerations
The DVCPRO 25 codecs used in Profile systems are actually pairs of codecs.
Because of this paired codec architecture, some restrictions apply to the DVCPRO
codecs which require the following system timing limitations:
1. You must supply a Reference In signal to the Profile system.
2. All video signals that you want to record with a DVCPRO codec must be
synchronous with the Reference In signal.
3. If you want to use the DVCPRO 25 codecs as independent codecs, all of your
video inputs must be auto-timed to the Reference input. In Configuration
Manager, select Enable Auto-Timing for each input. You must ensure that
each input actually auto-times by checking that the Auto-Timed indicator in
the Video Input dialog box is lit. Refer to “Using the Profile Configuration
Manager” in the Profile Family User Manual for more information on
Auto-Timing.
4. If you are unable to auto-time an input, or if you wish to use the DVCPRO
codecs for BVW Insert/Edit operations, you may only use one of the codecs
from each pair, DVCPRO25 #1, DVCPRO25 #3, and DVCPRO25 #5. Note
that the second DVCPRO25 codec from each pair must not be used
(DVCPRO25 #2, DVCPRO25 #4, and DVCPRO25 #6).