Results of ltc and genlock timing references – Extron Electronics JMP 9600 User Guide User Manual
Page 91
If the slave player needs an additional timing reference for more precise synchronization
(see “
Results of timecode and genlock timing references
proprietary genlock timing reference or traditionaly genlock can provide it. In
, on
the preceding page, the master player outputs the ESGen genlock signal on its Lock Out
connector. The slave player receives the ESGen genlock on its Lock In connector.
TIP: If you are using proprietary genlock in your configuration set the player that is the
LTC master to be the genlock master.
NOTE: If you are using traditional genlock, the media player can only input the
reference and can be a genlock slave only.
The slave player can daisy-chain the signal on its Lock Out connector for use in an
application with up to three media players. In a system with more that three devices
requiring proprietary genlock, Extron recommends using the following optional Extron
equipment:
•
PDA 108 Player Sync Distribution Amplifier for JMP 9600 (part number 60-1148-01) for
the ESGen genlock signal
•
DA 6A Stereo Audio Distribution Amplifier (part number 60-692-20) for the LTC signal
Results of LTC and genlock timing references
For precise frame-by-frame sync to the master player, the slave player needs an additional
timing reference in addition to LTC; either proprietary genlock or traditional genlock
(see figure 68).
•
Proprietary or traditional genlock only — Video frame times are precisely
synchronized between the players, but there is no control ensuring that both players are
playing the corresponding frame.
•
LTC only — The content is loosely synchronized with the players outputting
corresponding frames, but the video frame times may be slightly shifted.
•
Proprietary or traditional genlock and LTC — Video frames and content are precisely
synchronized.
Genlock only
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Genlock and LTC
Figure 68.
Comparison of the Effects of Timing References Applied
JMP 9600 Media Player • Detailed System Interaction
85