Guralp Systems CMG-DCM build <10,000 - Manual (Page 169)

Acquisition Modules and Platinum Firmware Transmitting Data
• Debugging information;
• Informational messages;
• Important notices; or
• Warnings
Audit log size: The GCF BRP serial sender keeps its own audit log,
independent from the system log. The contents of this log are available using
the “GCF Audit Log viewer” facility as described in section 14.4.5 on page
241. The amount of data retained is controlled by the drop-down menu,
where the choices are:
• 64Kib (small)
• 256Kib (medium)
• 2MiB (large)
• 16MiB (huge)
GDI multiplexer: In most configurations, all data for all transmitters is taken
from a single multiplexor, as described in section 6.1 on page 65. For more
complex configurations, it is possible to configure multiple multiplexers, each
with their own set of input and output services. In these situations, the
drop-down menu can be used to select a multiplexer instance with which to
associate this transmitter. The menu offers a list of currently configured
multiplexers.
State directory: The GCF BRP protocol requires the transmitter to store some
state information. By default, this is held in the directory
/var/lib/gcf-out-brp.PPP where PPP is the port name. The text field
can be changed to cause this information to be stored elsewhere (typically on
another device). This may be useful for managing storage utilisation in
complex configurations.
12.1.3 GCF BRP Network Server
The GCF BRP network server transmits Güralp Compressed Format (GCF) data
using the Block Recovery Protocol (BRP) over an Ethernet network.
To configure a GCF BRP network server from the web interface, select:
Configuration → Services → GCF
or
Configuration → All options → System services → GCF
To configure a GCF BRP network server from the command line, start gconfig
and select “System services” from the menu.
MAN-EAM-0003 169 Issue E - February 2014