Guralp Systems CMG-DCM build <10,000 - Manual (Page 173)

Operator's Guide
It is possible to protect attached devices from under-voltages by setting
a Low voltage cut-off threshold value. If the monitored voltage falls
below this value, it is automatically turned off. To prevent rapid,
repeated power-cycling of attached devices, a hysteresis value should
be set. The monitored voltage must rise above the sum of the
threshold voltage and the hysteresis voltage before the supply will be
re-enabled.
Click the “Return to front page” button to display the main Digital I/O
summary again.
Below the port power monitors, the summary screen displays the anti-
tamper lines (when these are fitted):
The detail screen for the tamper detection items display no useful
information beyond that displayed on the summary screen.
13.2.2 Digitiser/Sensor Control
The CMG-EAM allows control of attached digitisers and sensors via the
web interface or the command line. To configure digitisers, see section
7 on page 78.
The web interface is simpler and requires no detailed knowledge of the
attached devices. The command line interface is more powerful but
requires detailed knowledge of the digitiser's command line interface
and the manual for the digitiser in question should be referred to for
further details.
13.2.2.1 Digitiser/Sensor Control - Web interface
The main menu of the web interface adapts to include additional
options when the system detects attached digitisers and/or digital
sensors.
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