Guralp Systems CMG-DCM User Manual
Page 31

Operator's guide
the inputs from an array of sensors.
Here,
DATA OUT ports with gcf_out as the service output data to the
serial inputs of another DCM or AM module, which aggregates them
all and sends them out over a network connection.
The DCM can handle multiple data sources with ease using the
gcf_out service. In practice, however, it is almost always preferable to
set up a local area network and use PPP over any serial links, so that
GCF, Web and SSH traffic can share the same connection. Setting up a
fully networked array is slightly more difficult than using
gcf_in and
gcf_out services, but provides much more flexibility.
December 2006
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