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3. Either use a computer connected to the NETWORK port to browse to the
Serial port configuration section of the DCM Web site, or log in to the
Linux console over the serial link.
4. Set the serial.2.service option to gcf_out. If using the Linux console, this
can be done using the command gcfgdbset (see Section 6.2,
“Command line tools”.)
Note: Beyond this point you will not be able to use the serial link to
access the Web configuration interface of the DCM. If you do want to be
able to do this, you should configure the serial link for PPP (see “PPP”
in Section 4.4) and run a Scream! server on the DCM. You will need to
assign the DCM its own IP address on your local network.
5. If you connected to the DCM by PPP, you will lose the network
connection at this point, because the DCM is now using the serial link
directly.
6. Open Scream!'s main window, and look under Local in the tree on the
left for the serial port which is communicating with the DCM. If it is not
shown, you may have to 'unfold' the tree to reveal it. The digitizer(s)
attached to the DCM will appear underneath the entry for the serial port,
and you can configure them from within Scream!. See Scream!'s
documentation for more details.
7. If no digitizer is shown, it may be that your software is not configured
correctly for the serial link. As supplied, the DCM uses a baud rate of
115200 on its CONSOLE port, with 8 data bits, no parity bits and 1 stop
bit, and no flow control.
For more information on how to use Scream! to display and manage data
streams, please see Scream!'s own documentation or the extensive on-line help.
Accessing the DCM command line through gcf_out
The gcf_out service provides a command-line terminal designed to be
compatible with Güralp Systems' SAM serial storage device. To access this
terminal from Scream!, right-click on the DCM's icon and select Terminal....
The SAM commands you can use are described in the SAM Operator's Manual.
You can also log in to the DCM's Linux operaing system through the terminal.
Enter the command
GETTY
and press ENTER. You will be presented with the login: prompt.
If you are not using Scream!, you can interrupt the GCF data stream and drop
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