External Tally - NewTek Connect Spark Pro Operating Instructions Manual

output from the device is visible on the Program output or Preview row of a video switcher, as illustrated by
Figure 2-15.
FIGURE 2-15
The external Tally connector, located near the USB-C port on Spark Pro's chassis, allows you to send Program
tally notification to external studio systems. This 1/8" connector uses the common 'contact closure' method
to provide electrical tally indication, as follows:

When Program tally is not active, measurement from tip to sleeve will be open.

Otherwise, when Program tally is active, measurement from tip to sleeve will typically be between
75 and 90 ohms.

EXTERNAL TALLY

2.6.1
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