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Güralp Minimus2 Technical Manual

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Güralp Minimus2
including Güralp Discovery software and the GüVü app
Technical Manual
Document Number: MAN-MIN-0002
Issue A – Dec 2022
Designed and manufactured by
Güralp Systems Limited
3 Midas House, Calleva Park
Aldermaston RG7 8EA
England

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  • Page 1 Güralp Minimus2 including Güralp Discovery software and the GüVü app Technical Manual Document Number: MAN-MIN-0002 Issue A – Dec 2022 Designed and manufactured by Güralp Systems Limited 3 Midas House, Calleva Park Aldermaston RG7 8EA England...

  • Page 2: Table Of Contents

    Güralp Minimus2 Contents Table of Contents 1 Preliminary Notes......................6 1.1 Proprietary Notice......................6 1.2 Cautions and Notes....................6 1.3 Manuals and Software....................6 1.4 Conventions.......................6 2 System Overview......................7 2.1 Key features.......................7 2.2 Typical applications....................7 3 System description......................9 3.1 Güralp Minimus digitiser....................9 3.1.1 LED indicator......................9 3.1.2 Bluetooth connectivity..................10...
  • Page 3 5.14.2 EEW Configuration..................52 5.14.3 CAP receiver....................53 5.14.4 Seismic Event Table..................55 5.15 Using a Registry....................55 5.15.1 Configuring a Minimus2 for use with a registry..........56 5.15.2 Configuring Discovery for use with a registry..........56 5.15.3 Registry mode: using WAN or LAN addresses..........57 MAN-MIN-0002...
  • Page 4 7.1 Reset all settings during boot phase...............69 8 Appendix 1 – Instrument/channel names..............75 8.1 Minimus2 ' internal sensors..................76 8.2 Analogue Instruments....................77 8.3 Digital Instruments....................79 9 Appendix 2 – Minimus2 network ports...............81 10 Appendix 3 – Connector pin-outs................82 10.1 Ethernet.........................82 10.2 Power........................83 10.3 GNSS/serial......................84 10.4 Digital........................85...
  • Page 5 Güralp Minimus2 11.2 Minimus+........................88 12 Appendix 5 – Güralp Discovery installation............89 12.1 Installation in Linux....................89 12.2 Installation in Mac....................90 12.3 Installation in Windows..................91 12.4 Configuring Windows Firewall................94 12.5 Update........................95 13 Appendix 6 – IP address configuration on PC or Laptop........98 13.1 On Linux........................98...

  • Page 6: Preliminary Notes

    Güralp Minimus2 Preliminary Notes Preliminary Notes Proprietary Notice The information in this document is proprietary to Güralp Systems Limited and may be copied or distributed for educational and academic purposes but may not be used commercially without permission. Whilst every effort is made to ensure the accuracy, completeness and usefulness of the information in the document, neither Güralp Systems Limited...

  • Page 7: System Overview

    Thank-you for purchasing a Güralp Minimus2 digitiser. This section describes the key components of a Minimus2 system. The Minimus2 unit is the main, standard product in the system; other components and accessories are optional and can be purchased separately. Please check your order confirmation to see which components were purchased with your system.
  • Page 8 Güralp Minimus2 System Overview Explosion monitoring. • MAN-MIN-0002 IssueA - Dec2022...

  • Page 9: System Description

    Güralp Minimus digitiser The Güralp Minimus2 is a combined digitiser and advanced communications unit. The Minimus2 acquires data from – and allows direct control (where appropriate) of – connected analogue instruments (e.g. Güralp Fortis, 3-series, 5-series, 40T and 6T sensors) and digital instruments (e.g. the Güralp Certis).

  • Page 10: Bluetooth Connectivity

    The Minimus2 is supplied with two microSD cards that are of equal storage capacity (e.g. two 64 GB cards). Note: In order to ensure data integrity and security, Güralp only recommends the use of the supplied industrial-grade microSD cards.
  • Page 11 If a card- holder is to be transported when it is not installed in a Minimus2 , enclose it in a protective bag or covering so that it cannot be scratched or contaminated.

  • Page 12: Web Interface

    Please refer to Chapter 5 on page 24 for full usage instructions. Accessory package 3.2.1 Ethernet cable The Ethernet connector allows use of 10BASE-T, 100BASE-T networks. The cable that connects to the Minimus2 has a metal cover which is IP68-rated and MAN-MIN-0002 IssueA - Dec2022...

  • Page 13: Compact Gnss Receiver And Cable

    3.2.4 Diagnostic GNSS to Serial cable adapter The Minimus2 comes with an adapter to connect the GNSS LEMO connector to a female nine-pin D-subminiature connector (DE9f), which can be used with a standard serial port to allow diagnosis and debugging of the Minimus2 using a serial terminal emulator (see section 7 on page 68).
  • Page 14 Note: This facility should rarely be required. It is primarily intended for use by the Güralp Support Team to help diagnose any problems with the Minimus2 that may be experienced by the user. A serial-to-USB converter (not supplied) may need to be used to connect to PCs or laptops that don’t have a nine-pin serial connector.

  • Page 15: Güralp Discovery Software

    Discovery also provides simple, convenient instrument and data management with access to hardware State-of-Health (SoH), data streaming; GNSS location; response and calibration data. Discovery can download Minimus2 2 firmware from the Internet and remotely install it onto any connected Minimus2 digitisers. MAN-MIN-0002...

  • Page 16: Güralp Güvü Android And Ios App

    Güralp Minimus2 System description Güralp GüVü Android and iOS app For added confidence during deployments in the field, Güralp GüVü, a Bluetooth App, displays waveforms, orientation, temperature and humidity data for instant checking of installation integrity. Please refer to Chapter 6 on page 61 for installation and usage instructions.

  • Page 17: Getting Started

    A typical set-up for the Minimus2 connected to an analogue sensor. Power up the Minimus2 using a power supply with a DC output of between 10 and 36 Volts. We recommend fitting an in-line 3.5 A anti-surge fuse in the positive power lead to protect the external wiring of the installation.
  • Page 18 "Add device" or choosing this option from the Edit menu: The following dialogue is displayed: Enter the IP address of the Minimus2 (or other device, such as Güralp Affinity) to be added and click the button. The newly added device will appear in the device list.

  • Page 19: Viewing Waveforms And System State-Of-Health

    Güralp Minimus2 Getting started The “Status” column is composed of three icons that represent the Minimus2 connectivity status (whether Minimus2 is reachable/active or not), timing status (GNSS or PTP) and storage status (primary/secondary) respectively. Hovering the mouse over any of these three icons will display tool-tips giving a...
  • Page 20 Güralp Minimus2 Getting started parameters so that data can be expressed in terms of physical units rather than digitiser counts. Güralp recommends using the “GDI only” option for waveform viewing. Metadata (including Calibration) is automatically sent with a stream. The display is thus shown in real units –...
  • Page 21 The GDI protocol allows a receiver, such as Discovery, to select which channels to receive by use of a “channel subscription list”. This feature can be useful in cases where the connection between Minimus2 and Discovery has limited bandwidth. To subscribe to specific channels, right-click on a digitiser in Discovery’s main window and select “GDI Configuration”...

  • Page 22: Using Scream

    4.2 on page 17). Right-click on the newly-added server and select GCFSEND:B (or Connect) from the context menu. This sends a command to the Minimus2 to start data transmission. Once the GCFSEND:B (or Connect) command has been issued,...
  • Page 23 Scream!’s main window. To configure the Minimus2 , double-click on its entry to open its web page. Note: If stream recording is enabled, make sure that the file-name format in Scream! (on the Files tab of the File→Setup dialogue) is set YYYY\YYYYMM\YYYYMMDD\I_A_YYYYMMDD_HHNN in order to prevent file names conflicting.

  • Page 24: System Configuration

    WAN address of the instrument from any common web browser. Note: Some changes in the settings require a system reboot to be applied. This is notified on the top right of the Minimus2 web page with the message Reboot Required .

  • Page 25: System Status

    Serial number: the serial number of the Minimus2 ; • Firmware version: the DIG firmware version running on the Minimus2 ; • IPv4 address: the static or Dynamic LAN IP address of the Minimus2 ; • SEED network and station: Network and Station SEED codes of the •...

  • Page 26: Station Meta-Data

    In this mode, it is possible to specify the IP address, the Netmask and the address of the Gateway (default router), as shown: Before any changes made here will take effect, the Minimus2 must be re- booted. To do this, click the button on the “Data Record”...

  • Page 27: Ntp (Network Timing Protocol) Configuration

    Güralp Minimus2 System configuration Network settings are also available in Discovery by right-clicking on the Minimus2 ' entry in Discovery's main window and selecting “Edit Network Address”. 5.4.2 NTP (Network Timing Protocol) configuration Note: Network Timing Protocol (NTP) is only used for setting the system's internal clock at boot-up, it is not used for sample timing.

  • Page 28: Gdi Push (Auto-Connection)

    Güralp Minimus2 System configuration GDI push (auto-connection) A Minimus2 normally acts as a GDI server, where a client initiates a connection in order to pull data from it. This is the mechanism used when the GDI viewer in Discovery is launched.

  • Page 29: Storage

    (see Section 5.11.5 on page 47). Upon changing the sample rate, or changing Location and Channels codes, the Minimus2 will need to be restarted for the changes to come into effect; this can be done by pressing the button.

  • Page 30: Microsd Card Re-Formatting

    Güralp Minimus2 System configuration The left-hand column provides details of the external (primary, removable) microSD card and the right-hand column shows the status of the internal (backup, fixed) card. Sections of this panel indicate the status of the following: Whether a card is inserted;...

  • Page 31: Microsd Card Data Flushing And Unmounting

    Güralp Minimus2 System configuration 5.7.2.1 Quick format Ensure that the external microSD card is correctly inserted. Click the button in the “Storage” tab: The button legend will change to ask for confirmation. Press a second time to start the format: The progress bar should immediately start at 1% and take about 5 minutes to complete.

  • Page 32: Downloading Data For Specific Time-Intervals

    (external or in-built) on your PC/laptop. Within a few seconds, the card should appear as a removable disk/drive. A microSD card formatted for the Minimus2 contains many "hidden" files. They are created at format time with no contents and then renamed, unhidden and filled with data as required.

  • Page 33: The Contents Of The Microsd Card

    Güralp Minimus2 System configuration When viewing files in Windows Explorer, it may be helpful to configure your system so that "hidden" files are not shown. In Windows 10, this can be done by clearing the “Hidden items” check-box within the ribbon of Windows Explorer.

  • Page 34: Request Data From Microsd Card

    The .mseed extension which identifies this as a miniSEED file. • The "Storage" tab also shows links to five auxiliary files, which are either saved in the Minimus2 ' flash RAM or are dynamically generated: network.DATALESS : This is a dataless SEED volume that contains meta- •...

  • Page 35: Data Transmission

    “Zoom in” to zoom into the data. Multiple channel are selectable using key In Discovery, right-click on the Minimus2 of interest and select “Live View” → “GDI” to open a data viewer window. Select the streams that are going to be backfilled with recorded data.

  • Page 36: Scream! (Gcf Format + Scream Protocol)

    (see Section 5.11.5 on page 47). Upon changing the sample rate, or changing Location and Channels codes, the Minimus2 will need to be restarted for the changes to come into effect; this can be done by pressing the button.

  • Page 37: Gdi-Link Protocol

    Note: The Minimus SEEDlink back-fill implementation is packet- based. In the “Network” tab of the Minimus2 ' web page, select the desired SEEDlink mode: The choices are: “Enabled” - This is the normal operating mode. Choose between backfill •...
  • Page 38 The number of samples in each packet, therefore, depends both upon this setting and on the sample rate. In the “Network” tab of the Minimus2 web page select the interval in deciseconds (1 decisecond = 100 ms or 0.1 seconds) between miniSEED packets (“Send SeedLink EEW Packets Every”).
  • Page 39 DG_TEST_00_HNZ, 415 samples, 100 Hz, 2016,257,10:44:06.930000 (latency ~3.0 sec) ⋮ The SEEDlink server on the Minimus2 also supports the use of the “?” character as a wild-card within network, station and channel codes. This allows you to request multiple streams using a single command.

  • Page 40: Synchronisation Of The Sample-Clock

    Synchronisation of the sample-clock The Minimus2 system synchronises its sample clock using an attached GNSS receiver or, if that is not available, Precision Time Protocol (PTP). The currently supported GNSS systems are Navstar (GPS), GLONASS, BeiDou and Galileo.

  • Page 41: Gnss Lock Status

    GLONASS, BeiDou or Galileo. If visibility of the satellite constellation is available, this is the most accurate way to synchronise your digitiser. The Minimus2 accessory pack includes a combined GNSS antenna and receiver for this purpose: see Section 3.2.2 on page 13 for details.
  • Page 42 System configuration longer distances when fibre-optic cable is used. PTP is significantly more accurate than NTP but generally requires specialised hardware support. In the “Status” tab of the Minimus2 web page, a number of reporting parameters are given, including: PTP state •...

  • Page 43: Deploy Mode: Full Power-Save

    The required correction value can be extracted from the internal clock from GNSS stream of the Minimus2 . In the Live View enable the 0CGPSO channel and select at least 20 minutes of data. Right-click on the selection and click on...
  • Page 44 Once in deploy mode, the only way to re-enable the Ethernet module is to connect to the Minimus2 via a serial connection (see Section 7 on page 68) or to use the GüVü Bluetooth app (see Section 6.4 on page 62).

  • Page 45: Configuration And Control Of Connected Analogue Instruments

    5.11.1 Setting instrument type The analogue sensor type is user-selectable and the Minimus2 includes a choice of several Güralp sensors and accelerometers. If the sensor is not in the list, select “Generic velocity” or “Generic acceleration”, according to the instrument's response.

  • Page 46: Setting Digitiser Gain

    The input range and resolution change automatically when the gain is selected and the gain in the RESP files and Dataless SEED is updated automatically. 5.11.4 Mass control The Minimus2 can lock, unlock and centre the masses of connected instruments. 5.11.4.1 Mass centring Many broadband seismometers (e.g. Güralp 3T and 3ESPC) support...

  • Page 47: Instrument Response Parameters

    A calibration procedure is also used to establish the relationship between the input voltage that a digitiser sees and the output, in counts, that it produces. The results are traditionally expressed in volts per count. Each Minimus2 is programmed at the factory so that it knows its own calibration values.
  • Page 48 Güralp Minimus2 System configuration The Calibration resistor is the value of the calibration resistor, in Ω, as • given on the sensor calibration sheet. This is common to all sensor components. The Normalising factor specifies the value that the transfer function •...

  • Page 49: Configuration And Control Of Connected Digital Instruments

    Clicking on a RESP file link produces a page like this: Right-click anywhere and select “Back” to return to the Minimus2 web page. To save a RESP file, right click on it in the main list and select "Save Link": 5.12...

  • Page 50: Setting Sensor Orientation And Depth Parameters

    5.13.2 Instrument installation parameters The Dip (tilt angle from vertical), Azimuth (tilt direction from North) and Depth of analogue or digital sensors connected to the Minimus2 can be set in the Setup tab of the web interface in the section “Instrument Installation Parameters”.

  • Page 51: Earthquake Early Warning

    Güralp Minimus2 System configuration down menu to choose between Triangle, Square and White Noise signal to be injected into the sensor's feedback loop. Adjust the calibration signal amplitude at 100%, 50%, 25% or 12.5% of the DAC full range. Finally, enable the calibration on all three components of the selected analogue sensor.

  • Page 52: Trigger Configuration

    Güralp Minimus2 System configuration 5.14.1 Trigger Configuration The Trigger Configuration section of the web page under the Triggers tab enables the user to configure the triggering system. The trigger taps should first be selected from the drop-down list of all possible triggering sources.

  • Page 53: Cap Receiver

    Discovery or clicking on “Edit” in the menu bar: The CAP receiver window allows specification of the listening port. Each Minimus2 from which messages should be received must have this value specified as the “CAP Port” in its triggering settings (see Section Error: Reference source not found on page Error: Reference source not found).
  • Page 54 When an event is detected and a CAP message is received, the location of the Minimus2 that generated the trigger is identified by a pointer displayed on the map. The events and the information contained in the CAP message are displayed at the right-hand side of the window.

  • Page 55: Seismic Event Table

    The table is located at the top of the “Trigger” tab in the Minimus2 web page. Note: The links produce downloadable miniSEED files if and only if the requested data is available in the microSD card.

  • Page 56: Configuring A Minimus2 For Use With A Registry

    The address of the registry server and the chosen Group ID must be set individually for each participating Minimus2 digitiser. To do this, first connect the Minimus2 to the same network as a PC running Discovery and click the button, so that the Minimus2 appears in the main Discovery list.

  • Page 57: Registry Mode: Using Wan Or Lan Addresses

    Return to the main windows and test the configuration by clicking the button. All Minimus2 digitisers using the same Registry server and Group ID should appear in the main list. 5.15.3 Registry mode: using WAN or LAN addresses When Discovery displays a list of devices found from a local scan, all access to those systems is initiated via the LAN address.

  • Page 58: Updating Minimus2 Firmware

    LAN. 5.16 Updating Minimus2 firmware The firmware of the Minimus2 is upgradeable. New releases appear regularly – mostly to add new features but, occasionally, to fix problems. Güralp recommends that the Minimus2 is regularly checked for availability of firmware updates and, when convenient, these updates should be installed.

  • Page 59: Import / Export An Existing Configuration

    Control Centre Several actions can be taken from within Discovery to control any of the instruments connected to the Minimus2 as well as the digitiser itself. This operation can be done by right-clicking on the digitiser’s entry in the list and select “Control Centre”...
  • Page 60 Function This button launches a console that allows interactions with the command line of the Minimus2 . The list of available commands and their respective descriptions can be displayed by entering the command “help”. This should generally only be done on the advice of the Güralp technical support team.

  • Page 61: Güvü App

    4. Select the appropriate Minimus2 device from the list to pair. Wait a few seconds for the main viewer screen to show. The instrument connection screen can also be accessed by pressing the menu icon ) on the main instrument status window, and selecting the “Connect”...

  • Page 62: Selecting Data Sources

    Show velocity graph view - show sensor traces on the main screen • only. Instrument control Several features of the Minimus2 and connected instruments can be controlled and configured remotely over Bluetooth using GüVü: Analogue instrument centring • Clearing and un-mounting SD card •...

  • Page 63: Setting The Pin Code

    Güralp Minimus2 GüVü app Note: After any modification to channels' sampling rates, the Minimus2 must be rebooted before the changes will take effect. These options can be accessed by tapping the menu icon ( ) and choosing the "Device control" option. To access the instrument control and configuration...

  • Page 64: Bulk Data Extraction Via Network

    Güralp Minimus2 GüVü app GNSS lock quality; • Power supply status; • Instrument temperature and humidity recordings. • To send a deployment report, tap the menu icon ( ) and choose the "Deployment report" option. GüVü will then open the default email application on the device, showing a draft email which will include the parameters described above.

  • Page 65: Bulk Data Extraction

    Güralp Minimus2 GüVü app import os import wget from obspy import read, read_inventory, UTCDateTime from obspy.signal import PPSD ######### Start of variable to set ############# temp = os.environ["TEMP"] sensor = "192.168.254.101" channel = "DG.TEST.01.HHZ" start = UTCDateTime("2020-10-19T00:00:00.0") end = UTCDateTime("2020-10-19T06:00:00.0") ########### End of variables to set ########### startUNIX = UTCDateTime(start).timestamp...

  • Page 66: The Contents Of The Microsd Card

    Güralp Minimus2 GüVü app When viewing files in Windows Explorer, it may be helpful to configure your system so that "hidden" files are not shown. In Windows 10, this can be done by clearing the “Hidden items” check-box within the ribbon of Windows Explorer.
  • Page 67 Güralp Minimus2 GüVü app The file-name consists of four components: The stream name, truncated to 16 characters – see Section 11 on page • 75 for a full list of these; The sample rate, (in samples per second), as a ten-digit decimal •...

  • Page 68: Advanced Troubleshooting

    Advanced troubleshooting In the unlikely event of the user experiencing problems with the operation of the Minimus2 , a diagnostics tool is available via the GNSS connector. This connector provides a serial console which can be accessed using a terminal emulator.

  • Page 69: Reset All Settings During Boot Phase

    The Minimus2 can be reset to its factory settings during its boot-up stage. This is useful in cases where the user is not able to communicate with the Minimus2 via a network connection, where the unit is not responsive, or where it does not appear in the Discovery software’s scan results.
  • Page 70 0x1302, MCK = 165888000 Hz @GURALP SYSTEMS Once the “@GURALP SYSTEMS” banner has been printed, keying least once) will cause all settings (except Username, Password and Bluetooth PIN) to revert to their default values and cause the Minimus2 to reboot. MAN-MIN-0002 IssueA - Dec2022...
  • Page 71 Güralp Minimus2 Advanced troubleshooting v2.0-7548 by teamcity on 14:28:48 07-Nov-2019 Vecbase: 300000 CPUid: 410fc051 Cache: c5187d PMT init Unsafe to change DBGU clock while running mux start SP 300fb4 FPU start VFP Id=41023051 0.00 | -> init_dbgprint 0.00 | -> init_cmdutils 0.00 | ->...
  • Page 72 Güralp Minimus2 Advanced troubleshooting [SD log not available!] User variable "last_loc_lat" modified (called from load_from_fram) [SD log not available!] User variable "last_loc_lon" modified (called from load_from_fram) [SD log not available!] User variable "station_start_t" modified (called from load_from_fram) [SD log not available!] User variable "DHCP" modified (called from load_from_fram) [SD log not available!] User variable "Static IP addr"...
  • Page 73 Güralp Minimus2 Advanced troubleshooting Sensor6 is velocimeter Sensor7 is velocimeter Sensor8 is velocimeter 3.33 | -> init_nand 4.17 | -> adc12_init 4.18 | -> init_random 4.18 | -> ltc4151_vc_monitor_init Voltage/Current readings are not provided by LTC4151 chip. 4.19 | -> voltage_sniffer_init 4.20 | ->...
  • Page 74 Güralp Minimus2 Advanced troubleshooting was recognised during the second stage of boot-up, then the Minimus2 will reset and re-boot: Ctrl+R NVR load, resetting all vars to their default values and then rebooting Forcing all vars to default values (including non-default-able)

  • Page 75: Appendix 1 - Instrument/Channel Names

    Note: Throughout this section, the letter n in italic script is used to indicate the Instrument number, which is a small integer used to identify the signal source. This is always zero ('0') for the Minimus2 ' own internal sensors and for the first analogue instrument.

  • Page 76: Minimus2 ' Internal Sensors

    Güralp Minimus2 Appendix 1 – Instrument/channel names Minimus2 ' internal sensors Data streaming Data recording Mini Digital Live Sensor Comp. SEED filter Live stream name Stream Data record name channel mode code code S0AccZ 0AXL10 S0AccZA Acausal S0AccZB Causal S0AccelZLowLat...

  • Page 77: Analogue Instruments

    Güralp Minimus2 Appendix 1 – Instrument/channel names Data streaming Data recording Mini Digital Live Sensor Comp. SEED filter Live stream name Stream Data record name channel mode code code Delay SM Acausal ClkPtpDelaySM 0CPDSM ClkPtpDelaySM Mean path ClkPtpMeanPathDela ClkPtpMeanPathDela Acausal...
  • Page 78 Güralp Minimus2 Appendix 1 – Instrument/channel names Data streaming Data recording Mini Digital Live Sensor Comp. SEED filter Live stream name Stream Data record name channel mode code code East Acausal SnIntE nVELMA SnIntE mass positions VELC Calibration Acausal S...

  • Page 79: Digital Instruments

    Appendix 1 – Instrument/channel names Digital Instruments Digital instruments can be attached to the Minimus2 in a chain. The lowest number instrument is the one which is closest to the Minimus2 . On a ⨹ Minimus2 , this is Instrument 1.
  • Page 80 Güralp Minimus2 Appendix 1 – Instrument/channel names Sensor Comp Data streaming Data recording SnAccE nAXLE0 SnAccEA Acausa East SnAccEB Causal SnAccELowLat nAXLEC Acausa SnMagZ nMAGZ0 SnMagZ Acausa SnMagN nMAGN0 SnMagN Acausa SnMagE nMAGE0 SnMagE Magnetometer Acausa SnRotYaw nROTY0 SnRotYaw Acausa...

  • Page 81: Appendix 2 - Minimus2 Network Ports

    Güralp Minimus2 Appendix 2 – Minimus2 network ports Appendix 2 – Minimus2 network ports The following network ports are used by the Minimus2 : Port Layer 4 Protocol Description HTTP server 1565 GDI transmission protocol 1567 TCP/UDP GCF transmission protocol...

  • Page 82: Appendix 3 - Connector Pin-Outs

    Güralp Minimus2 Appendix 3 – Connector pin-outs Appendix 3 – Connector pin-outs 10.1 Ethernet This is an Amphenol RJField-series 8P8C connector. It consists of a standard ISO 8877 8P8C modular socket (often called RJ45) in a bayonet mounting compatible with MIL-DTL-26482 (formerly MIL-C-26482).

  • Page 83: Power

    Güralp Minimus2 Appendix 3 – Connector pin-outs 10.2 Power This is a standard 4-pin military-specification bayonet plug, conforming to MIL-DTL-26482 (formerly MIL-C-26482). Function Ground 10-36 V DC input not connected not connected Wiring details for the compatible socket as seen from the cable end (i.e. when assembling).

  • Page 84: Gnss/Serial

    Güralp Minimus2 Appendix 3 – Connector pin-outs 10.3 GNSS/serial This is a 14-pin LEMO EEG.1K socket. Suitable mating connectors can be found in the LEMO FGG.1K.314 range. To engage the mating connector, line up • the red marks and push firmly home.

  • Page 85: Digital

    Güralp Minimus2 Appendix 3 – Connector pin-outs 10.4 Digital This is a standard 10-pin military-specification bayonet sockets, conforming to MIL-DTL-26482 (formerly MIL-C-26482). Function Ground Power RS422 serial transmit – positive RS422 serial transmit – negative RS422 serial receive – negative...

  • Page 86: Analogue 1 And Analogue 2

    Güralp Minimus2 Appendix 3 – Connector pin-outs 10.5 Analogue 1 and Analogue 2 These are standard 26-pin male military- specification bayonet plugs, conforming to MIL-DTL-26482 (formerly MIL-C-26482). Pin Function Pin Function Vertical Acceleration/Velocity – Calibration signal (all channels) differential non-inverting input Vertical Acceleration/Velocity –...

  • Page 87: Appendix 4 - Dimensions And Drawings

    Güralp Minimus2 Appendix 4 – Dimensions and drawings Appendix 4 – Dimensions and drawings 11.1 Minimus MAN-MIN-0002 IssueA - Dec2022...

  • Page 88: Minimus

    Güralp Minimus2 Appendix 4 – Dimensions and drawings 11.2 Minimus+ MAN-MIN-0002 IssueA - Dec2022...

  • Page 89: Appendix 5 - Güralp Discovery Installation

    Güralp Minimus2 Appendix 5 – Güralp Discovery installation Appendix 5 – Güralp Discovery installation Güralp Discovery is a software package for Microsoft Windows, MAC and Linux, which facilitates the identification, configuration and management of Güralp digitisers and instruments. Güralp Discovery has a conventional .msi -based installer. Once installed, the software can check whether it is the current version and can update itself using a button on the Help→About menu.

  • Page 90: Installation In Mac

    Güralp Minimus2 Appendix 5 – Güralp Discovery installation The script proceeds through the following installation stages: 1. A confirmation prompt: Guralp Discovery will be installed in: /opt/guralp/discovery. [C]ontinue/[A]bort Type to continue installation in listed directory, or to abort and change directory using the -o execution parameter 2.

  • Page 91: Installation In Windows

    Güralp Minimus2 Appendix 5 – Güralp Discovery installation If you saved the file to disk, navigate to the download location and open Discovery.dmg with DiskImageMounter. 4. Successful mounting should result in Discovery drag and drop installation window Drag and drop discovery.app to the Applications folder.
  • Page 92 Güralp Minimus2 Appendix 5 – Güralp Discovery installation 4. The next screen asks whether you would like to place an icon for Discovery on the desktop: Tick the check-box if you wish and then click , key or key to continue.
  • Page 93 Güralp Minimus2 Appendix 5 – Güralp Discovery installation 6. Once you have clicked , the installation begins and a progress screen is displayed: Pressing or keying now will remove all of the installed files (except the installer itself) and reverse any changes made so far.

  • Page 94: Configuring Windows Firewall

    Güralp Minimus2 Appendix 5 – Güralp Discovery installation 12.4 Configuring Windows Firewall Windows Firewall can interfere with Discovery’s ability to send information to instruments and/or receive information from instruments over the network. If you use Windows Firewall, you should make special provision for allowing Discovery to communicate, as described in this section.

  • Page 95: Update

    Güralp Minimus2 Appendix 5 – Güralp Discovery installation profile, the “Private” profile or the “Public” profile. (Profiles are also known as “network locations”.) The “Domain” profile applies to networks where the host system can authenticate to a domain controller. The “Private” profile is a user- assigned profile and is used to designate private or home networks.
  • Page 96 Güralp Minimus2 Appendix 5 – Güralp Discovery installation The currently installed version is shown. If this is the most recent version available, the screen will say Up to date and the button will be disabled, as shown above. If a newer version is available, the screen will look...
  • Page 97 Güralp Minimus2 Appendix 5 – Güralp Discovery installation The following screen is displayed: The screen provides three check-boxes which indicate whether Discovery can communicate with networked devices in the “Domain” profile, the “Private” profile or the “Public” profile. (Profiles are also known as “network locations”.) The “Domain”...

  • Page 98: Appendix 6 - Ip Address Configuration On Pc Or Laptop

    With APIPA (Automatic Private IP Addressing), a laptop or PC can automatically configure itself with an IP address in the range 169.254.0.1 to 169.254.255.254. The default subnet mask is 255.255.0.0. Connect the Minimus2 to the laptop or PC using the blue Ethernet cable and power it up. 13.1...
  • Page 99 , in the lower-left corner of the window, then click "Make Service Inactive." Click the "Apply" button to disable the NIC (Network Interface Card). 3. With the Minimus2 connected and powered up, click the button again, click "Make Service Active" and click "Apply" to re-enable the NIC.

  • Page 100: On Windows

    "Run" dialogue, enter ncpa.cpl and key Right-click on the network adapter which is connected to the Minimus2 and select “Disable” from the context menu. Right-click on the same adapter again and select “Enable”. Close the network settings window.

  • Page 101: Eu Declaration Of Conformity

    READING, RG7 8EA. Tel: +44 118 981 9056 E-mail: technical@guralp.com Declare under our sole responsibility that the following product Equipment name: Minimus2 with GPS Model Number: MIN2-0001 and appropriate variants Is in conformity with the Radio Equipment Directive 2014/53/EU Electromagnetic Compatibility Directive 2014/30/EU...

  • Page 102: Revision History

    Güralp Minimus2 Revision History Revision History MAN-MIN-0002 IssueA - Dec2022...

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