Guralp Systems CMG-DCM build <10,000 - Manual (Page 147)

Operator's Guide
The software will attempt to populate the table based on incoming
data streams so it is a good idea to configure all input sources and run
the system for a few minutes before completing this table.
11.4.2 Configurable parameters in expert mode
The following additional configuration parameters are available by
clicking the “Expert” button at the bottom of the form.
It may sometimes be desirable, for debugging purposes, to separate log
messages for this transmitter from the standard system log. The Log
file text field can be populated with a path name which will then be
used for dedicated logging. If left blank, logging occurs (via the
standard Linux syslog facility) to /var/log/messages.
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