Guralp Systems CD1.1 - Manual (Page 23)

Operator's Guide
The Enable check-box controls whether this instance is to be
automatically started each time the system boots or whether it
should be left to be started manually.
The Delete check-box, if ticked, will cause this instance to be
deleted when the form is submitted.
The Database directory field allows you to specify the path to
a directory where the subframes are stored. A directory
specified here should not be used for any other purposes and
should not be shared with any other data-mux-cd11 instances.
The default location, /var/lib/data-mux-cd11.n, where n is
the instance identifier, will be adequate in most applications.
Note that large files will accumulate in this directory so: (a) you
should ensure that you have sufficient space available to store
the expected amount of data; and (b) you should configure a
directory cleaner to remove unwanted files from this directory
(see Section 8.1 on page 45 for more details). This database
may be stored on additional flash memory, if fitted: See
Section 13 on page 79 for more details.
The Data frame transmission period field controls the real-
time data time-out described in section 2.1.1 on page 9. It
should be set to achieve the desired trade-off between
subframe packing efficiency and data latency.
The Back-filled frame transmission period fulfils a similar
function with respect to back-filled data and is also described in
section 2.1.1 on page 9.
4.2.2 Configurable parameters in expert mode
Two additional parameters are configurable when in export
mode.
The Log file field allows a separate log-file to be maintained,
dedicated to this multiplexer instance. When left blank, the
standard syslog subsystem is used and, for most applications,
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