Guralp Systems Scream - Manual (Page 17)

User guide
The last two characters tell you the type, component, and output tap of
the stream.
•
Z0, N0, E0 correspond to input channels Z, N, and E of the
digitiser's SENSOR A port, continuously output through Tap 0.
•
Z2, N2, E2 correspond to the same input channels, output
through Tap 1 at a lower sample rate.
•
Likewise, Z4, N4, E4 and Z6, N6, E6 correspond to Taps 2 and 3.
•
Z1, N1, E1; Z3, N3, E3; Z5, N5, E5; and Z7, N7, E7 correspond to
Taps 0, 1, 2, and 3 of SENSOR B, when you connect a 6-channel
digitiser.
•
00 is the digitiser status stream (notice: zero sample rate).
•
M8, M9, MA are slow-rate Mux channels reporting the sensor
mass positions for the Z, N, and E components (Section 7.4 on
page 86).
•
MB is a slow-rate Mux channel used for user input, or calibration
signals on older Güralp Systems digitisers.
•
MC-F are further Mux channels, used for user input or the
digitiser's internal temperature.
•
X0-X7 denote the auxiliary analogue input channel on newer
DM24 units, digitized using the same tap settings as Z, N and E.
•
C0-C7 denote the same input channel, when it is being used for
an input calibration signal.
•
Z, N, EG-N are the channels Z, N, E0-7, respectively, when they
output triggered data.
•
IB denotes digitiser Information Blocks containing user
information. Scream! tries to interpret these blocks and
automatically extracts data from them for use in WaveView
windows or Matlab extensions.
•
CD, BP are digitiser streams for specialised use.
Scream! can replace these designations with more helpful names if
you wish: see Section 4.4.2 on page 49.
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