Guralp Systems Scream - Manual (Page 59)

User guide
5.3 Server Buffer
It is recommended that the user ensures there is sufficient disk space
available on the drive selected to hold the buffer. The buffer size can
be specified in either time (Days, Weeks, Years), or in terms of disk
usage (Mb/Gb/Tb).
5.4 Gap recovery
In addition to the normal UDP data protocol, Scream! has facilities for
attempting to recover missing data. When Scream! receives a block of
data that indicates a gap, it connects to the server over a TCP link
(from the same port). Once this connection is made, Scream! requests
the missing data and, if they are available, the server transmits them
over the TCP connection. The UDP data stream is unaffected.
If you are using a firewall on either side of the connection and want
Scream! to be able to recover missing data in this way, you will need
to unblock the relevant port for both UDP and TCP traffic.
5.5 Retrieving data over dial-up links
Scream! can manage the retrieval of data from your installation using
modems attached to your local PC. This feature is intended for use in
conjunction with the triggering capabilities and Flash recording modes
of Güralp digitisers.
1. Click File Setup… → on Scream's menu bar. Select the Com
Ports tab.
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