Guralp Systems CMG-CD24 - Manual (Page 63)

Operator's Guide
whilst lower rate streams will output 20-sample blocks: every 5
seconds for 4 samples/s data, etc.
The special value, NORMAL COMPRESSION, returns the setting to its
default value, and is equivalent to 8BIT 250 COMPRESSION.
5.5 Triggering
5.5.1 TRIGGERS
Syntax: components TRIGGERS
Selects which component or components can generate a trigger. Only
these components will be examined by the triggering algorithm.
components is an integer below 16, whose binary bits represent the Z
(1), N (2), E (4) and auxiliary (8) components respectively. Thus, for
example,
•
1 TRIGGERS will trigger from the Z component only (1);
•
6 TRIGGERS will trigger from either the N or E components (2
+ 4 = 6);
•
7 TRIGGERS will trigger from any of the three components (1 +
2 + 4 = 7);
•
0 TRIGGERS will disable the triggering system.
5.5.2 TRIGGERED
Syntax: tap components TRIGGERED
Selects which component or components will be output when a trigger
is generated, and at which tap (sample rate).
tap is the tap number at which to output the triggered stream. You
can set which taps output which sample rate using the SAMPLES/SEC
command, described above.
components is an integer below 16, which represents which
components to output in the same fashion as in the TRIGGERS
command, above.
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