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Tritech Micron Modem Product Manual

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Micron Modem
Micron Modem
Product Manual
0630-SOM-00001, Issue: 03
1
© Tritech International Ltd.

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Summary of Contents for Tritech Micron Modem

  • Page 1 Micron Modem Micron Modem Product Manual 0630-SOM-00001, Issue: 03 0630-SOM-00001, Issue: 03 © Tritech International Ltd.
  • Page 2 The copyright in this document is the property of Tritech International Ltd. The document is supplied by Tritech International Ltd on the understanding that it may not be copied, used, or disclosed to others except as authorised in writing by Tritech International Ltd.

  • Page 3: Table Of Contents

    A.1.1. Setting up the Software ..............18 A.1.2. Conversion to Transponder .............. 20 A.1.3. Conversion to Responder ..............21 A.2. Changing Modes using a Terminal Program ..........23 B. Testing with HyperTerminal or Docklight ..............24 Glossary ........................29 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 4: Help & Support

    Under no circumstances should a product be returned that is contaminated with radioactive material. The name of the organisation which purchased the system is held on record at Tritech International Ltd and details of new software or hardware packages will be announced at regular intervals.

  • Page 5: Warning Symbols

    Where this symbol is present there is a serious risk of injury or loss of life. Care should be taken to follow the instructions correctly and also conduct a separate Risk Assessment prior to commencing work. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 6: Introduction

    Micron Modem 1. Introduction The Tritech International Ltd Micron Data Modem provides a means of transferring data acoustically through water. Operation is point to point, between a pair of Micron Data Modems, at operational distances of up to 500m horizontally and 150m vertically at a data rate of 40 bits per second.

  • Page 7: Specification

    ±0.2m accuracy (assuming correct velocity of sound) 2.3. Electrical and Communication Communications protocol RS232 or RS485 Power supply 12 - 48V DC Power consumption 7.92W (330mA at 24V) transmitting 0.72W (30mA at 24V) receiving 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 8: Physical

    Face View Caution Applying power to the communication lines will cause significant damage the unit. Note The Micron connector should be tightened by hand. Tools used to provide a mechanical advantage will damage connector. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 9: Installation

    Orientation of the Micron Data Modem will normally be in the vertical position with the transducer uppermost. The transducer is omni-directional. Four tapped holes in the aluminium body are provided by the bottom of the Micron Modem to permit mounting on flat surfaces, alternatively the Modem may be gently gripped by a 50mm diameter clamping mechanism around the bottom part of the housing.

  • Page 10: Communication Protocol

    Micron Modem 3.4. Communication Protocol The Micron Modem is supplied with two communications ports labelled MAIN and AUX. All communication to the control computer on the surface should be via the MAIN port, while the AUX port is used for daisy chained communication links to other Tritech International Ltd sensors, such as the Micron Echosounder.
  • Page 11 MicronNav system. It will not be usable as a modem. The unit has been configured as a Transponder for use with the MicronNav system. It will not be usable as a modem. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 12: Operation

    Micron Modem 4. Operation 4.1. Software Tritech International Ltd does not supply the Micron Data Modem with specific operating software. Seanet Pro software is required should any modem re-configuration be required (refer to Chapter 5, Configuration). Any terminal software may be used to operate and test a pair of data modems, however,...

  • Page 13: Transmission Characteristics

    Control of the Micron Modem must be handled by the connected computer or hardware. • Error checking and data quality is not provided by the Micron Modem. Any error in transmission will not be detected by the Modem and the Modem will not attempt re- transmission of the same data should it not be received correctly by the receiving Modem.

  • Page 14: Configuration

    Launch Seanet Setup and navigate to Com Setup from the Utilities menu. In the dialog that is displayed make sure that the device Aif is enabled and using the correct COM port that is connected to the Micron Modem (the Status column should read Not Available until the Micron Modem is turned on).

  • Page 15: Modem Configuration Window

    5.2. Modem Configuration Window From the node table in Seanet Setup select Setup from the action column of the row which shows the Micron Modem. This will bring up the AM100ModemCfgSetup dialog as shown in Figure 5.4, “Micron Modem Configuration”.
  • Page 16 Any parameters not listed above are not effective at present and should not be selected or changed from the factory defaults. Adjustment of these additional parameters may render the unit inoperable and require it to be returned to Tritech International Ltd to be reset. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 17: Maintenance

    Micron Modem 6. Maintenance There are no user serviceable components in the Micron Modem and there is no reason to dismantle the device. Wash down with fresh water each time the Micron Modem is recovered from the water, paying particular attention to the transducer and connector.

  • Page 18: Changing Modem Modes (Responder/Transponder/Modem)

    There are two methods for changing the operation mode on a modem. • The first method works with all the modems that have been produced by Tritech. This involves using a magnet to put the modem into a programmable mode.
  • Page 19 AifSetupForm and adjust the Baud to 57600. Confirm the settings and close the AifSetupForm. The Channel Setup page should now list the enabled ports as follows: Device Baud Rate Type 115200 SeaHubMain AMNavSeaNavHS 115200 SeaHubHS 57600 SeaHubE 57600 SeaHubB 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 20: Conversion To Transponder

    The Responder unit can now be reconfigured to Transponder mode by clicking on the Action arrow button in the MINIMODEM row followed by Setup from the sub-menu to display the AM100 ModemCfgSetup page. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 21: Conversion To Responder

    MINIMODEM row followed by Setup from the sub-menu to display the AM100 ModemCfgSetup page. Change the Unit OpMode to Responder, ID Bits to IdM0, and enable the COM Rx TMO Enabled check-box (as shown below). 0630-SOM-00001, Issue: 03 © Tritech International Ltd.
  • Page 22 The magnet can now be removed from the body of the Transponder unit and power switched off and re-applied to activate the change. This now completes the conversion from Transponder to Responder mode. Close the Seanet Setup program and delete the Seanet Pro Supervisor shortcut. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 23: Changing Modes Using A Terminal Program

    Currently you can only change the operation of the modem using the terminal programs. You cannot assign Transponders numbers other that T1 The Micron Modem will only accept RS232 commands at 9600 baud on the Main Port when the unit is idle.

  • Page 24: Testing With Hyperterminal Or Docklight

    3. Next select the COM port number of the port that the first modem is connected to and click OK. 4. Ensure that the Bits per second (baud rate) is set correctly for the modem (9600 is default) and set the flow control to None. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.
  • Page 25 6. Ensure that the Send line ends with line feeds and Echo typed characters locally options are checked and click OK to apply the settings and then click OK on the properties dialog. 7. Repeat steps 1-6 to create another terminal window for the second modem. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.
  • Page 26 The version in use here is Docklight V1.9. Docklight is available from www.docklight.de">. 1. Within the Send Sequences box double click on the grey box in the Name column to enter the Edit Send Sequence dialog. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.
  • Page 27 Send/Receive option is selected. 4. For testing the Micron Data Modem the COM port that the Master is connected to should be selected in Docklight first and used to send the function commands and check that 0630-SOM-00001, Issue: 03 © Tritech International Ltd.
  • Page 28 Then the COM port that the Slave is connected to should be selected and the commands sent again. This will check that both modems can send and receive commands. An example output is shown: 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

  • Page 29: Glossary

    Traditional name for a series of standards for serial binary data control signals. RS485 A standard for defining the electrical characteristics of drivers and receivers for use in a balanced digital multipoint system (also known as EIA-485). Receive (data) Transmit (data) Universal Serial Bus. 0630-SOM-00001, Issue: 03 © Tritech International Ltd.

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