User guide

Table Of Contents

If the slave player needs an additional timing reference for more precise synchronization

(see “Results of timecode and genlock timing references,“ below), either the

proprietary genlock timing reference or traditionaly genlock can provide it. In ﬁgure 67, 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

Frame

LTC only

Master

Player

Slave

Player

Master

Player

Slave

Player

Master

Player

Slave

Player

Genlock and LTC

Figure 68. Comparison of the Effects of Timing References Applied

JMP 9600 Media Player • Detailed System Interaction 85