Minicom Advanced Systems CMG-DCM manual CD1.0 and CD1.1

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CMG-DCM

for client requests, you will receive a GCFACKN message from the server which will also appear in the Control pane.

6.Request data by right-clicking on the server and selecting GCFSEND:L (or GCFSEND:B) from the pop-up menu.(L is used for little-endian and B for big-endian byte order, and are distinguished for compatibility.) Streams should soon begin to appear in Scream!'s main window.

7.To stop the link, right-click as before and select GCFSTOP from the pop-up menu. If you do not GCFSTOP, the server will continue to transmit to a client that is no longer listening. You should ensure that the server replies with a GCFACKN message If an acknowledgement does not appear in the Control pane, repeat the GCFSTOP command.

CD1.0 and CD1.1

The DCM can be configured to transmit incoming data to a specified client using the CD1.0 or CD1.1 protocols. If you intend to send CD1.0 or CD1.1 data to a National Data Centre (NDC), the installation will need to be assigned a unique code by the International Seismic Centre or with the US's National Earthquake Information Center.

To enable CD1.0 or CD1.1 transmitters, scroll down to Data transfer and select CD1.0—Transmitteror CD1.1—Transmitter. Fill in the required data fields and click Save settings. The meaning of each field is explained on the page and in Chapter 4, “Configuration options”.

Using an Authentication Module (AM) you can cryptographically sign all outgoing CD1.0 or CD1.1 subframes as they pass through. This is particularly powerful where the module is physically part of the sensor casing, as it allows you to generate authenticated data at source, even within a borehole.

Optionally, the DCM can also accept CD1.0 or CD1.1 data from another instrument. Incoming data is stored in Flash memory, just like that coming from attached sensors, and can be retransmitted as CD1.0, CD1.1, GCF, or by any other method as required.

AutoDRM

AutoDRM (Automatic Data Request Manager) is an optional service which allows you to request data over e-mail. In response to a request, the AutoDRM can either send an e-mail in return, or establish an FTP connection to you.

In order for the AutoDRM system to work, the module must be able to send and receive e-mail messages. To set the system up, you will need to fill in the details of your network's SMTP server under Outgoing mail setup, and of your POP or IMAP server under Incoming mail setup. Remember to click Save changes after you have filled in each screen.

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Contents CMG-DCM Table of Contents December Inside the DCM Introduction CMG-DCM Inside the DCM Serial port services Network servicesSee .4, Connecting to a local network for full details Power supply Installing the CMG-DCMOverview Connecting to a single computer Connecting over a serial linkConnecting over Ethernet 192.168.0.xUsing an internal modem Connecting over USBConnecting to a local network Gcfgdbset option-namenew-value Wi-Fi Connecting to the InternetConnecting digitizers and external hardware Setting up the CMG-DCMWeb 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 Can Gcfping the DCMs Scream! server, but no data appears DCM is not receiving any data streamsUse the Serial port configuration → port name Web page, or DCM is receiving streams, but they do not contain any data143032 up 34 min, load average 1.24, 1.32 Configuration options GeneralDisk CMG-DCM Serial port configuration CMG-DCM Page Network configuration Ethernet portStatic routes DNS setup Incoming mail setup Outgoing mail setup Remote access Administrators PPP Mgetty Data transfer ScreamScream! Client AutoDRMHttp client Http serverCD1.0 CD1.1 CD1.1 subframe configuration DSS Server configuration Seed Page CMG-DCM Actions Data ViewerIcon bar Stream listDigitizer Setup General digitizer settings Digitizer output control CMG-DCM Trigger criteria CMG-DCM Tap # Rate Bandwidth Samples/s Auxiliary Mux channels Sensor mass control Check disk filesystem Disk toolsPartition, and format disk Flush flashCamera Disk filesRecent Log Entries Network configuration SummaryDNS configuration Data Out Port, Serial Port A, Serial Port BTamper lines Flash StatusDisk Status Software Versions Inside the DCM File systems CMG-DCM Command line tools Configuration Digitizer console access Monitoring Data flowDigitizer status Tamper lines From the hard disk Updating the DCMOver the Internet Removing support packagesFirmware Libgconfigdb Port a and B Appendix a Connector pinoutsAppendix A.1 Modular DCM units Data OUT portUSB connector Network connectorAppendix A.2 Integrated DCM units DM/AM module outputAppendix B Sensor and digitizer types Appendix B.1 Sensor response codesAppendix B.2 Digitizer type codes Digitizer
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