Minicom Advanced Systems CMG-DCM manual Http server, Http client, CD1.0

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Operator's guide

HTTP server

In addition to configuring the DCM and instruments attached to it, you can also instruct the on-board Web server to provide data to network clients.

datatransfer.http.server : Select on if you wish to be able to retrieve data from

the DCM over the Web (i.e. HTTP). Once the HTTP server is enabled, you can browse through the DCM's hard disk using the URL http://mydcm/cgi- bin/explorefs?path=/.

You may need a username and password to access this service.

HTTP client

The DCM also has the ability to retrieve data from another instrument or server on your network over HTTP.

datatransfer.http.client : Select on if you wish the DCM to retrieve data from networked instruments over HTTP.

datatransfer.http.client.url : The URL from which the DCM will collect data by HTTP.

CD1.0

Continuous Data Format, CD1.0, is a standard method for sending seismic data over a TCP/IP network. The DCM module can send and receive data in CD1.0 format to a specific CD1.0-compatible device or NDC.

Some installations of the DCM have multiple CD1.0 senders. In this case, there

December 2005

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Contents CMG-DCM Table of Contents December Inside the DCM Introduction CMG-DCM Inside the DCM Network services Serial port servicesSee .4, Connecting to a local network for full details Installing the CMG-DCM Power supplyOverview Connecting over a serial link Connecting to a single computer192.168.0.x Connecting over EthernetConnecting over USB Using an internal modemConnecting to a local network Gcfgdbset option-namenew-value Connecting to the Internet Wi-FiSetting up the CMG-DCM Connecting digitizers and external hardwareWeb setup Setting up digitizers Using Scream Usage General notesDCM as a data store Gnblocks port-number Page CMG-DCM DCM as a GCF data source Accessing the DCM command line through gcfout Sensor arrays DCM as a network data hub Communicating with digitizers Configuring digitizers Data storage and retrieval Using miniSEED format Real-time data transmission CD1.0 and CD1.1 Troubleshooting DCM installations Cannot see the DCMs Web site over Http or Https Cannot connect to the DCMs Scream! serverCannot Gcfping the DCMs Scream! server DCM is not receiving any data streams Can Gcfping the DCMs Scream! server, but no data appearsDCM is receiving streams, but they do not contain any data Use the Serial port configuration → port name Web page, or143032 up 34 min, load average 1.24, 1.32 General Configuration optionsDisk CMG-DCM Serial port configuration CMG-DCM Page Ethernet port Network configurationStatic routes DNS setup Incoming mail setup Outgoing mail setup Remote access Administrators PPP Mgetty Scream Data transferAutoDRM Scream! ClientHttp server Http clientCD1.0 CD1.1 CD1.1 subframe configuration DSS Server configuration Seed Page CMG-DCM Data Viewer ActionsStream list Icon barDigitizer Setup General digitizer settings Digitizer output control CMG-DCM Trigger criteria CMG-DCM Tap # Rate Bandwidth Samples/s Auxiliary Mux channels Sensor mass control Partition, and format disk Disk toolsCheck disk filesystem Flush flashDisk files CameraRecent Log Entries Summary Network configurationData Out Port, Serial Port A, Serial Port B DNS configurationFlash Status Tamper linesDisk Status Software Versions Inside the DCM File systems CMG-DCM Command line tools Configuration Digitizer console access Data flow MonitoringDigitizer status Tamper lines Over the Internet Updating the DCMFrom the hard disk Removing support packagesFirmware Libgconfigdb Appendix A.1 Modular DCM units Appendix a Connector pinoutsPort a and B Data OUT portNetwork connector USB connectorDM/AM module output Appendix A.2 Integrated DCM unitsAppendix B.1 Sensor response codes Appendix B Sensor and digitizer typesDigitizer Appendix B.2 Digitizer type codes