Minicom Advanced Systems CMG-DCM manual Inside the DCM

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Operator's guide

This form of DCM uses an integrated 26-pin connector to communicate, rather than having separate ports.

A DCM in any of these forms may be supplied in the configuration most suitable to your requirements, depending on how you wish it to be connected to your network, and how its USB interface is to be used. The two sets of options are independent.

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Using the 10BaseT Ethernet network option, you can connect the DCM to any TCP/IP network.

Alternatively, an internal PCMCIA modem may be supplied, through which you can use a dial-up or other communications link to connect to your home network. Most 56k analogue and ISDN-type modems are supported.

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As a third option, an 802.11b Wi-Fimodule may be installed.

If the USB client option is installed, you can connect the DCM's USB port to a computer and communicate with it as if it were on a private network.

•If the USB host option is installed, you can connect the USB port to an additional peripheral, such as a camera or external hard disk.

Whichever set of options you choose, you can use any free RS232 port to connect the DCM to a single computer for local monitoring and configuration, or through it to a wider network using PPP/SLIP.

1.1 Inside the DCM

The DCM's configuration is maintained by an internal database. All of the flexibility of the unit is provided through this configuration database. Before you deploy the DCM, you will need to configure it for your needs, either using its on-board Web server or over a direct serial link.

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 Power supply Installing the CMG-DCMOverview 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 General notes UsageDCM 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 connect to the DCMs Scream! server Cannot see the DCMs Web site over Http or HttpsCannot 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 client Http serverCD1.0 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 Flush flash Disk toolsPartition, and format disk Check disk filesystemCamera Disk filesRecent Log Entries Summary Network configurationData Out Port, Serial Port A, Serial Port B DNS configurationTamper lines Flash StatusDisk Status Software Versions Inside the DCM File systems CMG-DCM Command line tools Configuration Digitizer console access Data flow MonitoringDigitizer status Tamper lines Removing support packages Updating the DCMOver the Internet From the hard diskFirmware Libgconfigdb Data OUT port Appendix a Connector pinoutsAppendix A.1 Modular DCM units Port a and BNetwork 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
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