NewTek 3Play 4800 - Manual (Page 109)

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Figure 76 – 3Play 4800 shown
Tip: “Genlock” refers to “generator locking”. Professional video devices often provide a “genlock
input”, which allows an external reference signal (often referred to as ‘house sync’) to control its
video timing.
The output of video devices connected in this manner is synchronized to the reference signal, and
they are referred to as ‘genlocked’.
The 3Play system accepts input from multiple video sources. Miniscule local timing differences
between these may result in tiny delays during downstream switching operations.
Serving the same reference signal to i) the system’s Genlock input and ii) other video devices in
the chain is the best approach, and ensures a match between 3Play system output and any
downstream video devices required to handle both it and any other (genlocked) sources.