Changes for page Trigger Howto

Last modified by sndueste on 2023/07/07 11:28
From version 29.1
edited by sndueste
on 2023/04/28 11:02
Change comment: There is no comment for this version
To version 30.1
edited by sndueste
on 2023/05/11 16:57
Change comment: There is no comment for this version

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13 13  * signal level is:
14 14  ** + 3 V to + 4.5V  for high (actual trigger)  and  0V for low (baseline) at 50 Ohm
15 15  ** + 6 V to + 9V  for high  and  0V for low at 1 MOhm
16 +** the different trigger levels come from different hardware versions of the trigger hardware ... (4.5 V new, 3 V old)
16 16  ** one can also invert the signal in the expert panel ( thus the base line is + (3-5) V and the actual trigger signal is  0V)
17 17  * The trigger are send to the MTCA several ms before the first FEL pulse (3.1 ms for the "standard" trigger, 21.5 ms for the "early" trigger).
18 18  * The timer card can delay the trigger in 9 ns  steps for more than 100 ms (an option to shift the trigger in 1 ns steps is available in the expert panel)
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325 325  
326 326  \\
327 327  
329 += Some expert infos =
330 +
331 +== how to find details (age ...) of the timer cards / RTMs ==
332 +
333 +[[image:attach:Capture.PNG||height="250"]][[image:attach:Capture1.PNG||height="250"]][[image:attach:Capture2.PNG||thumbnail="true" height="250"]]
334 +
328 328  \\
329 329  
330 330  \\
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332 332  \\
333 333  
334 334  \\
342 +
343 +\\
344 +
345 +\\