Guralp Systems Strong Motion - Manual (Page 5)

Güralp Systems Ltd.
2 Digitiser Configuration
Below is a set of commands, including sample output, that
should be used to set up the DM24. Commands that should be
typed are
emphasised .
Bring up terminal mode on the digitiser. This can either be
done with Scream or with the data-terminal command on a
CMG-DCM or CMG-NAM. You should be presented with a
message similar to the following. Hitting a couple of
times will ensure the session is responsive.
LW A80800 CMG-3T Command Mode
0 blocks in buffer | 256 blocks free
Guralp Systems Ltd - DM+FW v.103 mgs 17/10/07 (Build 60)
ok_A808
2.1 Update firmware, upload infoblocks
Ensure that the firmware on the CMG-DM24 is up to date. At
the time of writing, the latest versions are Bootloader 1030,
DSP 1060, and system 1.03b70. Later versions will be
backwards compatible. You can follow the instructions at:
http://www.guralp.com/articles/20060914-firmware-
DM24mk3/support
Also upload an info block (or two blocks if you have a two-
instrument digitiser). Instructions are at:
http://www.guralp.com/articles/20060315-howto-information-
blocks/support
2.2 System identity
Now, set the system identity. This gives the System and
Stream IDs of the generated GCF data.
resetlabels ok_A808
set-id
System Identifier { LW } ? 5 characters : LW
Serial # { A80800 } ? 6 characters : A808
LW A80800 CMG-3T ok_A808
If you have a 2-instrument CMG-DM24, you should enable a
second serial number for the second instrument. This is
required otherwise the 2
nd info block will not be emitted by the
digitiser. This is achieved with the “serial2” command.
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