Guralp Systems CMG-DCM build <10,000 - Manual (Page 244)

Acquisition Modules and Platinum Firmware Monitoring Operations
The following summary screen is displayed:
The first two columns show the names of the channels, together with
information about the data format. The Active segments column shows
details of data currently being received. A segment is a contiguous sequence
of blocks so any data being back-filled always requires separate segments.
For each channel, you have the option of viewing detailed information about
the data or the data itself, by use of the “View details” and “Dump data”
buttons.
MAN-EAM-0003 244 Issue E - February 2014