Operator's guide
opening its Web site at
http://192.168.0.2/
7. Advanced usage: If you later want to connect your computer to a local
area network, you can make the DCM visible to that network by setting
up a network bridge. Before doing this, you must make sure that the IP
addresses you have chosen for the DCM and your computer are suitable
for the local network you want to connect it to.
To set up the bridge, open the Network Connections window, and select
the connections corresponding to the DCM and your network. Click
Bridge connections, and follow the instructions in the wizard.
If you are using Linux or another operating system, you should see its own
documentation for more details.
Using an internal modem
If you have ordered a DCM with an internal PCMCIA modem, it will
automatically listen for incoming PPP connections. This is most useful if the
DCM is integrated into a borehole instrument, which can then be connected to a
modem at a central data collection point. The modem within the DCM appears
on the Web configuration interface as a serial port, allowing you to change the
service it provides and the data transfer settings it uses. For example, if you do
not want the internal modem to use PPP, you can configure it to use mgetty
instead and log in directly.
Connecting over USB
If your DCM is equipped with the USB client interface, you can connect it
directly to any computer with a USB socket. When this is done, the computer
treats the module as if it were a standard network card. For example, to connect
the DCM to a PC running Microsoft Windows, you should:
1. Link the DCM's USB port to any available USB socket on the computer.
2. After a short wait, Windows should report that a new USB device has
been detected. When prompted to install drivers for it, you should use
the ones provided on CD by Güralp Systems.
Once the “network card” is installed, the two machines will consitute a network
segment, and each will have its own IP address on that segment. See
Section
2.4, “Connecting to a local network”
for details on how to configure TCP/IP on
the DCM. If you wish, you can set up a network bridge between this connection
and a local area network or the Internet as described above.
December 2005
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