Guralp Systems CMG-DM24S12AMS - Manual (Page 18)

CMG-DM24S12AMS Operator's guide
Triggered output causes the digitiser to output data only when a
particular set of trigger criteria are met. This is shown diagrammatically
as data passing through a switch. In the example above, we might want
the more detailed data from Tap 0 to be recorded only when an event
registers at some other tap. To do this, the lower check-boxes of Tap 0
should be ticked:
With this configuration uploaded, Tap 2 will continue to produce output
at all times, but Tap 0 will also emit data whenever the trigger criteria
are met. The Triggering button is now shown in red to remind you that
the trigger is active.
Every checked box in this window will give rise to a data stream coming
from the digitiser, which will be displayed in Scream!'s main window
when Scream! first receives some data from it. Every stream is identified
by a 6-character code, where the first four characters identify the
digitiser, and the last two characters identify the individual stream.
Using the example above, there are three data streams, Z, N and E,
which each output data at 20 samples/s (continuously) and 200
samples/s (occasionally). The streams appear in Scream!'s main window
like this:
18 Issue B