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NDAS-N. User Manual.
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Fig. 7.4. GPS and Time module. Configuration during the PTP synchronization
8. SeedLink server program module
The SeedLink server program module is designed to convert the NJSP streams into the SeedLink
protocol as well as to record the data to the internal memory in the miniSEED format. The module is a
shell for launching the SeedLink v3.2 (2014.071) and Slarchive 1.7-sc3 programs of the Seiscomp3
package which are distributed under the terms of the GNU General Public License.
Software for the NDAS-N data logger and the NDAS-RT multifunction module is identical.
The functions and capabilities described in this chapter for NDAS-RT also refer to the data
logger.
Each incoming NJSP stream is represented in the SeedLink protocol structure as a separate
station. The graphical interface of the module supports basic configuration without the function of
filtering and decimation, you will need to go to the development environment and manually edit the file
with parameters to set up the complete control and advanced settings.
Before proceeding with the module settings it is recommended reading the official SeedLink
documentation provided on the developers’ website at
https://docs.gempa.de/seiscomp3/current/apps/seedlink.html
8.1. Start of the Module
Click the
Modules
tab on the NDAS-RT main interface (see Fig. 4.1 and 4.3). Click the
run
button
in the appropriate line. If the information in the line has not been updated, click the
refresh state
button
in the upper right corner of the screen after a few seconds.
At the initial start the module may display an error message indicating the
configuration file was not found. This message will disappear after the required module
configuration is set up and saved.
