Guralp Systems CMG-DCM build <10,000 - Manual (Page 106)

CMG-EAM (Platinum Firmware)
it in the Local service field. These two fields can normally be left
blank.
In the “Servers” section, you specify the details of the Scream! servers
from which you want to pull data. The Name field should contain a
descriptive name for identification purposes. The Hostname field
must contain the DNS name or IP address of the desired server. The
Service field should contain the UDP/TCP port number on which the
server is listening for data requests. Port numbers can be mapped to
names using the standard Linux /etc/services file, which can be
edited from the command line.
In the Type column, choose whether you wish to use UDP packets or
TCP connections. With UDP packets, the GCF protocol keeps track of
which packets have been received and automatically requests
retransmission of any missing data. TCP, on the other hand, is a
connection-orientated protocol which handles packet sequencing and
retransmission itself (at the cost of a little extra network overhead).
106 Issue C