CMG-DCM / AM - Güralp Systems Limited

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CMG-DCM Data Communications Module 11 Revision history.................................................................................................. 132 4 Issue F
1 Introduction Operator's guide The CMG-DCM is a versatile Linux-based module for storing and transmitting data captured using Güralp Systems Limited's range of seismic measuring equipment. GCF data can be gathered from up to three compatible digitizers or digital instruments, and stored in its onboard Flash memory, from where it is written from time to time to a USB hard disk or to another device on your network. Once data is on the hard disk, you can connect to the DCM in various ways to retrieve it. Depending on your site requirements, the DCM may be supplied in several formats. Although these look different, they all share the same internal features. • A stand-alone DCM, housed in a high-impact copolymer polypropylene case, may be connected to a digitizer through mil-spec connector cables and installed in a ground station or other location remote from the digitizer and seismometer. The stand-alone DCM can accept data from up to three devices connected to it through RS232 ports. A stand-alone DCM unit is normally supplied with a highcapacity removable disk for data storage. These disks allow the DCM to be used as part of completely autonomous installation in cases where communications links are poor or non-existent. Manufactured and tested at Güralp Systems, the disks are compatible with USB and FireWire standards and include an internal temperature sensor and heater for use in cold environments. December 2006 5
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Page 33 and 34: interface by typing its IP address
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7 Configuring digitizers Operator's
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Operator's guide GPS Power Cycle :
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Operator's guide 7.3 Trigger criter
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Operator's guide Usually, the value
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Operator's guide 7.5 Sensor mass co
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Operator's guide Once the data is s
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Operator's guide moving files when
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Operator's guide The firmware Reins
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Operator's guide 9 Connector pinout
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Operator's guide 9.2 Integrated DCM
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Operator's guide 10.2 Digitizer typ
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CMG-DCM / AM - Güralp Systems Limited

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