It might be easier to use the tally connector some cameras provide. According to the manual the Grass Valley LDK 8000, which is quite common here, provides a tally output using the tracker or the DC output sockets.
This is the pinout of the DC Output connector (Hirose 4-pole):
pin 1: Ground
pin 2: On air
pin 3: No connection
pin 4: +12 Vdc (max. 18W)
But what does this mean? Is there going to be voltage between pins 2 and 1 if the camera is on air that can be used to power an LED stripe on the monitor directly or do I need a transistor cirquit of some kind in a small box? Thanks a lot in advance and best regards.
Edited by AndreasKielb, 13 October 2010 - 02:28 PM.