Guralp Systems CMG-DCM build <10,000 - Manual (Page 259)

Acquisition Modules and Platinum Firmware Technical operation
The system architecture is detailed in the image below:
15.4 Instruments with integrated CMG-EAMs
Güralp Systems digital instruments, such as the CMG-5TDE (shown below),
have an integrated digitiser and EAM.
The internal connections between the CMG-DM24 modules and the
CMG-EAM module are identical to those in an Cylindrical Digitiser, as
described in section 15.1 on page 250.
MAN-EAM-0003 259 Issue E - February 2014