Guralp Systems CMG-DCM build <10,000 - Manual (Page 117)

Acquisition Modules and Platinum Firmware Digitiser Configuration
8.3 Configuration for a second instrument
When the acquisition module detects that an attached (or built-in) digitiser
supports a second instrument (SENSOR B), additional items appear on the
web interface menu for the digitiser.
To use a second instrument, click the link for the associated digitiser in the
“System Setup” sub-menu of the “Configuration” menu. The resulting screen
will display a text-field, Serial number 2. Populate this field with the serial
number of the second sensor (or any desired value) and submit the page,
rebooting the digitiser.
Wait a short while and then use the refresh facility in your web browser to
reload the main menu. An extra device will appear in the “Control” section of
the main menu and an extra link for the digitiser will appear in the “System
Setup” sub-menu of the “Configuration” menu:
Although there are two links on the 'Control' section, only the first sensor can
be controlled.
Both links for the digitiser take you to the same page and either may be used
(This allows recovery from the situation where two physical digitisers with
the same serial numbers have been connected).
If either of these links are selected, the resulting page differs slightly from that
described in Section 8.1 on page 100.
MAN-EAM-0003 117 Issue E - February 2014