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R-sensors LLC

Bldg. 1, 4, Likhachevsky proezd, Dolgoprudny, 141701, Russia
+7 (498) 744-69-95,

[email protected]

NDAS-N. User Manual.

Maximum input signal at the 1:1
divisor and Gain=1

±4.096 V peak-peak differential voltage

Input impedance

180 kOhm || 2700 pF

19.5 Analog subsystem parameters, auxiliary ADC

Number of ADC channels

4 single-ended or

2 pseudo-differential

Maximal input signal

±18 V for the single-ended signal;

±36 V for the differential signal

ADC resolution

12 bit

Sampling rate

0.1, 1.0, 4.0 sps

ADC noise level

not determined in the single-ended mode;

no more than 10

V RMS at 100 sps

in the differential mode

Input impedance

200 kOhm || 900 pF

ADC input amplifier bandwidth

880 Hz

19.6 Extra Features and Options

Power over Ethernet (PoE)

48 V nominal

(36-57 V permissible)

More channels of the main ADC

up to 24 independent channels

Wired interface

RS-485 half-duplex

for interfacing with engineering systems

or connecting external sensors

Data reading modes

MTP (media transfer protocol),

SMB (server message block)

External synchronization

Connection of GPS/GLONASS

remote synchronization unit

with a cable length of up to 600 m

All ADC channels can simultaneously operate in either differential or non-differential mode.

Available through installing external and internal peripherals. Some features are available only when ordered with the

Manufacturer.

Содержание NDAS-8426N

Страница 1: ...6 CHANNEL PROGRAMMABLE SEISMIC DATA LOGGER NDAS 8426N User Manual R sensors LLC 2023 Version 1 0...

Страница 2: ...ork ports used by default 18 5 Onboard ADC program module ADC configuring 19 5 1 Start of the Module 19 5 2 Module interface 20 5 3 Status Manage testing tab 20 5 4 Config tab 20 5 5 Main ADC 22 5 6 A...

Страница 3: ...ty of time data 44 8 7 Slarchive archiver 44 8 8 SeedLink advanced settings 44 9 FTP server program module 46 9 1 Start of the Module 46 9 2 Module configuration page 47 10 Disk Cleaner program module...

Страница 4: ...storage 69 17 Warranty and service 69 18 Information about the manufacturer 70 19 Technical specifications 71 19 1 Electrical parameters 71 19 2 Mechanical parameters 71 19 3 Digital subsystem parame...

Страница 5: ...ser Manual 5 The following designations are used in this manual important information critical information DUE TO THE CONSTANT TECHNICAL IMPROVEMENTS AND MODERNIZATION THE CHANGES WHICH ARE NOT EXPRES...

Страница 6: ...y be used to connect the external GPS GLONASS satellite receiver located away from the data logger The data logger can be used as part of continuous seismic monitoring systems at stationary and mobile...

Страница 7: ...l clock of the data logger can be synchronized via the integrated GPS GLONASS satellite receiver through an Ethernet connection using NTP or PTP protocols or via the remote GPS GLONASS satellite recei...

Страница 8: ...le socket connector DH 20 12PE 03 001 2 pcs Auxiliary cable socket connector DH 24 C19PE 03 001 1 pc RJ 45 cable connector plug LP 24 C RJ45 015 PE 41 001 1 pc GPS antenna with 3 or 5 m cable 1 pc Pas...

Страница 9: ...ents of YU USB2 JSX 01 001 type or YU USB3 JSX 01 001 of USB A type Data reading connector micro USB 2 0 IP67 Antenna connector GPS GLONASS SMA F socket Data reading connector LP 24 J RJ45 213 SX 43 4...

Страница 10: ...re powering up SD card internal SSD disks Wi Fi Bluetooth ZigBee adapter 3G 4G LTE modem SIM card Although devices with the Mini PCI E interface can be connected and disconnected on the fly while powe...

Страница 11: ...logger At an initial connection the data logger receives an IP address via DHCP from the router Further access to the device is carried out by typing in the address bar its IP address with indicating...

Страница 12: ...R sensors LLC Bldg 1 4 Likhachevsky proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 12 4 1 System status page Fig 4 1 System status page...

Страница 13: ...humidity inside the device and system uptime The Storage section contains information about the status of the device drives SD card USB drives connected etc The Networks section contains information a...

Страница 14: ...of the connected device is displayed 4 3 Modules page The Modules page lists the individual software modules installed on NDAS RT for which their current status is displayed The config button opens t...

Страница 15: ...Link server functions For a detailed description refer to NDAS RT SeedLink Server Fig 4 3 Modules page 4 4 Device settings page The device settings page contains fields to change the login password of...

Страница 16: ...del The data exchange with the data logger is based on the NDAS RT network model The NDAS RT network model uses the concept of local network connections when transferring signals between software modu...

Страница 17: ...work ports 10003 and 10004 respectively The SeedLink server module is configured to connect the ND01 station to port 10001 and the ND02 station to port 10002 and so on Thus when the NDAS device is con...

Страница 18: ...TCP SSH connections port 3000 TCP Cloud9 development environment web interface port 8000 TCP Web user interface port 10000 TCP NJSP port for built in ADC of NDAS RT 10001 TCP NJSP port for NDAS devic...

Страница 19: ...in ADC parameters Settings of the auxiliary ADC parameters 5 1 Start of the Module Click the Config tab on the NDAS RT main interface Find the line of the Onboard ADC module click the enable button in...

Страница 20: ...ation and the current offset and sampling drift The Test signal section has a menu for selecting the test signal to be sent The following test signals are currently available Sinusoidal voltages of 1...

Страница 21: ...on between the main main and auxiliary env ADC settings in the middle part of the screen Fig 5 2 ADC data connection settings field Below are settings of the main and auxiliary channels Next the numbe...

Страница 22: ...to use for digitalization of seismic signals of the Earth s natural background during carrying out research by means of both passive and active analog output seismic receivers A short list of characte...

Страница 23: ...mestamp in the sampling system of the quartz ADC generator At the moment of enabling the time of the first sample is tied to the system time The timestamp of each subsequent sample is calculated based...

Страница 24: ...together with signals GPS temperature supply voltage etc Save signals to a buffer and upload as a CSV file Save profiles with custom settings Connection to the NJSP servers located on both local NDAS...

Страница 25: ...Click the Connections tab and add the required connections to the NJSP servers Make sure the connection is established the connection status is Connected the name and serial number of the signal sourc...

Страница 26: ...To remove the connection click the remove button in the corresponding line Fig 6 2 RT Viewer module Signal source setting 6 5 Devices tab Device Status view The Devices tab contains cards of all the...

Страница 27: ...ensors LLC Bldg 1 4 Likhachevsky proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 27 Fig 6 3 RT Viewer module List of available devices and status of channel setti...

Страница 28: ...ained in the buffer can be downloaded using the Download button Either all the data simultaneously or the data for each device can be downloaded Fig 6 4 RT Viewer module Buffering settings Note that t...

Страница 29: ...6 5 RT Viewer module Adding a window To get started you need to add windows using the add chart button Three types of windows are available such as a waveform spectral form and table The window type i...

Страница 30: ...fresh time parameter greatly affects the use of computing resources of your browser Select the optimal value of this parameter depending on the number of windows the number of signals in the window an...

Страница 31: ...sensors mail ru NDAS N User Manual 31 In addition to the general parameters when adding a waveform window you can adjust the Y axis scale of the chart the width of the chart and select the black back...

Страница 32: ...1V level Type chart type meaning spectrum or power spectral density Differentiation signal differentiation that can be useful while comparing the spectra of seismometers velocimeters and accelerometer...

Страница 33: ...he Time period specified for this window If the icon is green there is no data loss for the selected period if the color is red there are breaks in time Losses will appear as omissions in the waveform...

Страница 34: ...rs LLC Bldg 1 4 Likhachevsky proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 34 Fig 6 12 RT Viewer module Waveform window Fig 6 13 RT Viewer module Signal spectra...

Страница 35: ...nize the NDAS RT clock from the GPS NTP and PTP time sources Software for the NDAS N data logger and the NDAS RT multifunction module is identical The functions and capabilities described in this chap...

Страница 36: ...corner of the screen 7 2 Module interface Module interface is divided into the Status tab and the Config tab The Status tab contains general information such as the currently selected time source eval...

Страница 37: ...guring the following parameters Set up the timing accuracy threshold Select the time source For the GPS synchronization Use the GPS time as the time source for the NTP server Use the GPS time as the t...

Страница 38: ...proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 38 Fig 7 2 GPS and Time module Configuration during the GPS synchronization Fig 7 3 GPS and Time module Configura...

Страница 39: ...represented in the SeedLink protocol structure as a separate station The graphical interface of the module supports basic configuration without the function of filtering and decimation you will need...

Страница 40: ...the network parameter of seedlink ini Seedlink TCP Port is the SeedLink Server external port falls into the port parameter of seedlink ini displaying 18000 by default Use custom streams xml file is an...

Страница 41: ...he SeedLink stream The stations list interface allows adding a station remove a station from the list and edit station parameters Fig 8 2 SeedLink server module Stations list The station settings incl...

Страница 42: ...f the NJSP incoming signal must match the Sample rate parameter That means for correct operation it is necessary to set the same sampling rate in two settings in the parameters of the signal source da...

Страница 43: ...rdinate longitude 10 6 height M Data logger height above the sea level m If it is required to change the location code stream code or channels code use the Use custom streams xml file option and manua...

Страница 44: ...s feature on and off as well as configure the directory where the data will be saved The program saves the data into the SeisComP Data Structure in the following format SDSdir Year NET STA CHAN TYPE N...

Страница 45: ...the name attribute of the input element have values of ch1 ch6 The auxiliary channels names are given in the table in the Auxiliary Channels section The sampling rate of auxiliary channels is always...

Страница 46: ...stream AU tree proc streams 9 FTP server program module The FTP server module provides access to the NDAS RT file system using the FTP protocol Both the anonymous access and the login and password ba...

Страница 47: ...Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 47 9 2 Module configuration page The config button in the line of the FTP server module opens a dedicated page of the access rights configu...

Страница 48: ...ly for directories on the device s SD card Never access the NDAS RT system directories anonymously It may grant attackers access to reading files containing critical information such as passwords 10 D...

Страница 49: ...e and in most cases the pre installed configuration does not need to be changed If necessary the module parameters can be changed in the general configuration file named system_manager_config json loc...

Страница 50: ...A firewall is required to restrict access to the device when it is connected to an unsafe or public network First of all a firewall is required when NDAS RT is connected to the Internet using an exter...

Страница 51: ...is identical The functions and capabilities described in this chapter for NDAS RT also refer to the data logger Each rule is based on the principle of whitelisting for incoming connections In total th...

Страница 52: ...sh connections in a passive mode For this a special scenario is provided if there is the FTP server port 21 in the whitelist of ports then the Firewall module additionally opens the TCP port range of...

Страница 53: ...technology and connect the device inside the VPN network VPN allows connecting a device with no need to assign a real IP address to it and open ports that makes it impossible to connect to the device...

Страница 54: ...device is assigned the NJSP port number out of the free numbers pool 12 1 Start of the Module Open the Modules tab in the data logger s main interface see Fig 4 1 4 3 Find the line with the NDAS One m...

Страница 55: ...the data and commands Connect the device by the cable to one of the NDAS RT ports Make sure that the selected connection port is enabled in the NDAS RT settings on the Config tab The Enable Disable b...

Страница 56: ...into the internal memory card on the device itself can be both started and stopped If two USB ports on the NDAS RT housing is not enough you can connect NDAS One devices via a USB hub In this case con...

Страница 57: ...clock synchronization status On the right side are the details and config buttons With clicking on details you will get the detailed information about the device Device serial number and name if avai...

Страница 58: ...external network devices to the module In other words only programs and program modules of NDAS RT itself will be able to communicate with the module Stream only if device time valid This option allo...

Страница 59: ...to connect other devices disable NDAS One Manager through this configuration Fig 12 4 NDAS One Manager module NDAS ports settings NDAS Ports if available The following settings are available for NDAS...

Страница 60: ...s and NJSP ports by default USB Port 1 10001 USB Port 2 10002 NDAS Port 1 10003 NDAS Port 2 10004 Dynamic port pool This option configures the dynamic port pool When the NDAS One device is connected v...

Страница 61: ...sconnected and the NJSP server operation will be stopped Fig 12 6 NDAS One Manager module Test tab 13 Raw Data Logger program module recording raw data The Raw Data Logger module is designed to record...

Страница 62: ...s synchronization for the stream was set up at least once in the past That means the data recording will begin after synchronization and will no longer be interrupted even if the exact time source get...

Страница 63: ...irectory is a directory on an external USB drive where the data will be recorded into When multiple USB drives are connected recording will be performed on the first device detected by the system Enab...

Страница 64: ...units in Volts o Binary per channel 64 bit double are binaries channel by channel numbers of a double precision floating point units in Volts o Binary interleaved 32 bit integer is a binary file of in...

Страница 65: ...click the add connection button The new connection should appear in the connections list below If the connection to the NJSP server has been successful the connection status will change to Connected a...

Страница 66: ...treams control 13 6 Directories structure The module creates directories according to the following structure Operating directory Serial number of the device Recording start time or NO_TIME_XXX Stream...

Страница 67: ...sec and below the Recorder s ADC operates at a rate of 8000 samples per second For an output rate of 8000 samples sec the Recorder s ADC samples at a rate of 16000 samples per second Table 14 1 shows...

Страница 68: ...001 Table 14 3 FIR filter characteristics summary Target sample rate SPS Cutoff frequency Hz Stopband start Hz Passband ripple mdB Stopband attenuation dB 8000 3640 3984 1 173 4000 1820 1992 1 173 20...

Страница 69: ...3 mm 0 25 in against enclosure from any direction shall have no harmful effects In accordance with the NEMA 250 2003 standard the data logger complies with the NEMA TYPE 4 dust and performance of equi...

Страница 70: ...70 18 Information about the manufacturer Manufacturer R sensors LLC Office address 1 4 Likhachevsky proezd Dolgoprudny Moscow region 141701 Russia Phone number 7 498 744 69 95 http r sensors ru Posta...

Страница 71: ...tenna connection for GPS Wi Fi 3G LTE 1 to 311 pcs micro USB is an input for a wired USB connection and data reading YU USB2 JSX is a USB A input for connecting external USB drives and CME ND digital...

Страница 72: ...USB drives support of any size Network interface Ethernet 100 Base Tx Time synchronization Ethernet NTPv4 RFC 5905 PTP IEEE 1588v2 GPS GLONASS satellite receiver Timing accuracy in the presence of the...

Страница 73: ...Test signal generator output resistance 100 Ohm 19 4 Analog subsystem parameters main ADC ADC type Sigma delta with the differential input Number of channels 6 independent ADCs Sampling frequency 1 5...

Страница 74: ...t 100 sps in the differential mode Input impedance 200 kOhm 900 pF ADC input amplifier bandwidth 880 Hz 19 6 Extra Features and Options 13 Power over Ethernet PoE 48 V nominal 36 57 V permissible More...

Страница 75: ...ncy and signals of arbitrary waveform Automatic measurement of the sensor transfer characteristics Extra display and control elements Development of input devices button toggle switch and output devic...

Страница 76: ...rs LLC Bldg 1 4 Likhachevsky proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 76 APPENDIX 1 LOCATION OF CONNECTORS AND INDICATION MODES Fig 1 1 Connectors and indi...

Страница 77: ...nnecting digital devices YU USB2 JSX 01 001 YU USB3 JSX 01 001 USB A type 6 USB1 power status orange LED 7 DISK storage activity green LED 8 SYNC synchronization status red green LED 9 LINK data trans...

Страница 78: ...ng Flashing with the frequency of 1 time per second normal operation SYNC synchronization status LED RED GREEN Steady red no suitable synchronization source no synchronization Flashing red green synch...

Страница 79: ...RS 485 bus 5 V 0 1 V 500 mA maximum in total with the power consumption of sensors connected to the AUX connector 2 RS485 is a B signal wire for bus RS 485 3 RS485 A is a A signal wire for bus RS 485...

Страница 80: ...X ADC input is a input of the second differential channel of the auxiliary ADC or an input of the second single ended channel of the auxiliary ADC 3 CH1 CH03 AUX ADC input is a input of the first diff...

Страница 81: ...or sensors 5 V 0 1 V 500 mA maximum in total with the power consumption of sensors on RS 485 10 The contact is not used 11 The contact is not used 12 The contact is not used 13 R1 N is a normally clos...

Страница 82: ...first fourth channel of the main ADC 3 CH2 5 is a input of the second fifth channel of the main ADC 4 CH2 5 is a input of the second fifth channel of the main ADC 5 CH3 6 is a input of the third sixth...

Страница 83: ...output of active sensors 12 V 5 no more than 200 mA total with the line is 12 V 11 12V is a power output of active sensors 12 V 10 no more than 200 mA total with the line is 12 V 12 PGnd is a common...

Страница 84: ...sors LLC Bldg 1 4 Likhachevsky proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 84 Fig 2 5 USB 1 connector pin designations Fig 2 6 Micro USB connector pin designa...

Страница 85: ...g 1 4 Likhachevsky proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 85 Fig 2 7 LP 24 C RJ45 015 cable connector plug cable assembly Fig 2 8 USB A micro USB B stand...

Страница 86: ...4 Likhachevsky proezd Dolgoprudny 141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 86 Fig 2 9 DH 20 12PE 03 001 type cable plug to connect sensors Fig 2 10 DH 24 C19PE 03 001 type a...

Страница 87: ...141701 Russia 7 498 744 69 95 r sensors mail ru NDAS N User Manual 87 Fig 2 11 WiFi antenna connector appearance not included in the standard delivery set the antenna appearance may differ from the o...

Страница 88: ...sensors mail ru NDAS N User Manual 88 Fig 2 13 SMA M SMA M adapter not included in the standard delivery set Fig 2 14 SMA M RP SMA M adapter not included in the standard delivery set Fig 2 15 DH 20 J0...

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