Guralp Systems CMG-DCM build <10,000 - Manual (Page 214)

CMG-EAM (Platinum Firmware)
15 Revision history
2008-03-16 A New document
2009-06-16 B Major re-write for GDI. First official release.
2010-02-10 C Complete re-ordering and re-write. Additional
material for authenticated digitisers
214 Issue C