Guralp Systems CMG-CD24 - Manual (Page 66)

CMG-CD24
•
1, for a 100 s high pass filter;
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2, for a 300 s filter;
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3, for a 1000 s filter; or
•
0, to disable the high pass filter.
Note that this filter will affect the data being output as continuous
streams.
5.5.10 PRE-TRIG
Syntax: time PRE-TRIG
Sets the pre-trigger recording time. time is the number of seconds of
data to output from before a trigger is declared.
5.5.11 POST-TRIG
Syntax: time POST-TRIG
Sets the post-trigger recording time. time is the number of seconds of
data to output after a trigger condition lapses. If an event persists for
some time, all triggering components must fall below the threshold
before the trigger condition will lapse; only then will the post-trigger
period begin.
5.5.12 TRIGGERIN
Syntax: TRIGGERIN ENABLE | TRIGGERIN DISABLE
Enables or disables external trigger input, in digitisers equipped with
this option.
Enabling external trigger input allows you to trigger the CD24 from an
external logic level supplied through its digital output port. This
voltage can be between 5 and 10 V supplied between the Trigger In pin
and signal ground. If the CD24 is triggered externally, it will behave
exactly as if it had generated the trigger itself.
5.5.13 TRIGGEROUT
Syntax: TRIGGEROUT ENABLE | TRIGGEROUT DISABLE
Enables or disables external trigger output, in digitisers equipped with
this option.
66 Issue C