[Halld-pid] trigger electronics

[Beni Zihlmann]

Hi Sasha,
I attached a pdf file with some red maker to indicate some issues I have 
with
your trigger electronics.
If I understand correctly then the red circle indicates the main trigger 
coincidence,
namely a coincidence between top left/right and bottom left/right 
trigger paddles.
This trigger signal should directly go to the TI input as trigger. The 
output of the TI
is then the accepted trigger and should be used in the fanout to 
multiplex and
be used for the ADC gate and the TDC trigger. The signal
output of the trigger coincidence (red circle) should go directly into 
the TI and not
making a coincidence between the trigger and the TI trigger accept. That 
does not
make any sense. I indicated with red crosses (x) which lines should be 
removed
and where the trigger (red line) should go.

I hope it is clear what I try to say.

cheers,
Beni



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