Tallies

Tallies are simple open collectors that the switcher uses to signal other devices, and users, that a particular video source is on-air. Typically, tallies are used to light a red light on a camera to show people that they are on-air and what camera they should be looking at.

You can only assign a single source to a tally, but you can assign multiple tallies to the same source.

Tally ports are located on the Acuity™ control panel (panel tallies) and the SDPE blade (ME tallies).