Guralp Systems CMG-DCM - Manual (Page 24)

CMG-DCM Data Communications Module
3 Usage
The DCM can be integrated with any system where seismic data needs
to be collected, or converted from one form into another. It is designed
to operate as transparently as possible, and once connected and
configured for a particular role in a system it should not require
further maintenance.
The rest of this chapter gives detailed installation and usage notes for
several common DCM installations. Between them, they highlight
many important features of the DCM. For full configuration
information, please refer to the next chapter.
3.1 General notes
Stand-alone DCM modules can be supplied with a touch-screen and
minibrowser as an option. This allows you to perform configuration
tasks on-site. However, the touch-screen imposes some environmental
restrictions on the unit.
For all other DCM units, you will need console or network access to
the DCM to configure it for your installation. This is especially
important if the DCM is not to be part of a TCP/IP network whilst in
use.
As supplied, the DATA OUT port runs the getty service, which you
can use to access the console of the DCM over a serial link.
Alternatively, you can temporarily connect a computer to the
NETWORK port. It is recommended that you keep a serial or modem
connection to the DCM available for maintenance and troubleshooting,
even if the link is too slow for general use.
3.2 The DCM as a data store
The simplest way to use a DCM is as a storage medium for digital data.
1. Connect the DCM to a digitizer or digital sensor.
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