Minicom Advanced Systems CMG-DCM manual Auxiliary Mux channels

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CMG-DCM

Tap #	Rate	Bandwidth 1	Bandwidth 2		Bandwidth 5
Tap #	(samples/s)	(Hz)		(Hz)	(Hz)
	(samples/s)	(Hz)		(Hz)	(Hz)

	2	0.1 – 0.9	0.2	– 0.9	0.5 – 0.9
	1	0.05 – 0.45	0.1	– 0.45	0.25 – 0.45

As can be seen, the filter you choose defines the set of permissible sample rates.

The spectral amplitudes for the various frequency responses available are shown in the figures below.

Auxiliary (“Mux”) channels

Gü ralp digitizers provide a range of slow-rate auxiliary channels for reporting the system's state of health and other diagnostic information, known as multiplexed (“Mux”) channels. The number of Mux channels depends on the model and configuration of your digitizer. Generally, three channels are used to report the sensor mass position, and another measures the internal temperature of the digitizer. In addition to these, up to 12 Mux channels may be supplied for the user's own purposes. Some digitizers have a separate AUXILIARY port which can be used to access these channels.

You can choose which, if any, of these channels should be transmitted to the DCM in the next section of the page. If one of the check-boxes is ticked, the

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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 Overview Installing the CMG-DCMPower supply 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 DCM as a data store UsageGeneral notes 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 Gcfping the DCMs Scream! server Cannot see the DCMs Web site over Http or HttpsCannot connect to 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 AutoDRMCD1.0 Http serverHttp client 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 flashRecent Log Entries Disk filesCamera Network configuration SummaryDNS configuration Data Out Port, Serial Port A, Serial Port BDisk Status Flash StatusTamper lines 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