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NMEA Multiplexer with bidirectional SeaTalk port and USB 237.99EUR

+ Shipping / Versandkosten

NMEA Multiplexer with bidirectional SeaTalk and USB Port

The gadgetPool NMEA & SeaTalk Multiplexer is a NMEA-Multiplexer with additional Seatalk port and USB-port.
With this NMEA-Multiplexer you can connect serveral NMEA devices, read data from a SeaTalk network, write Data to your Seatalk network and also connect your PC

  

Multiplexer ports :

  • 4 galvanic isolated NMEA 0183 inputs.
  • 2 NMEA 0183 outputs
  • 1 galvanic isolated SeaTalk port. SeaTalk Data are translated into NMEA sentences, NMEA Data are translated into Seatalk data
  • 1 USB port for PC. With the USB port, a PC can send and receive NMEA Data.

What is a Nmea-Multipelxer good for ?

NMEA devices can send data and/or receive data from other NMEA devices. .

According to NMEA standards, a sender can send it's data to up to 4 receivers.

For a receiver, It is not possible to receive data from more than one sender.
A NMEA receiver can only receive data from one other device at a time.
I.e. With one NMEA input port, a Chart plotter can not receive position from a GPS device and depth data from a depth sounder at the same time.

In order to be able to receive data from more than one NMEA source, a NMEA-Multiplexer has to be placed in between the senders and the receiver.

A NMEA-Multiplexer receives data on separated input ports from different NMEA devices.
It buffers this incoming data, filters them and sends them out well ordered to the receiver.

gadgetPool NMEA-Multiplexer can receive data from :

  • up to 4 NMEA devices ( i.e. GPS, depth sounder, wind instruments, AIS etc.. )
  • 1 board PC via USB
  • 1 SeaTalk network.

The Multiplexer buffers, filters and send this data in proper order to :

  • 1 board PC via USB
  • up to 4 different types of NMEA receivers
  • to the Seatalk network

Housing and terminals

Housing
The multiplexer comes in a nice and sturdy metal housing.
For easy installation and service, all terminals for NMEA, SeaTalk and power supply are detachable

NMEA inputs


NMEA outputs


Update : In the picture above only two NMEA out ports are shown. Meanwhile all 4 NMEA out ports are available.

SeaTalk connection

Currently the following NMEA sentences can be produced based on incoming SeaTalk data:

  • $IIDBT Depth
  • $IIVHW Speed through water
  • $IIMTW Water temperature
  • $IIVLW Total milage, trip milage
  • $IIMWV Wind direction and wind speed
  • $IIHDM Heading magnetic
  • $IIRMC Speed over ground,heading, longitude, latitude , time, date
    Optional an aditional $IIGLL sentence can be sent.
  • $IIRSA Rudder

Power supply

Technical data :

  • Operation voltage : 10-30 Volt DC.
  • Power consumption : 60 mA ( 100 mA max. at full load)
  • Inputs : 4 * NMEA-0183 ( RS-422 ) galvanic isolated
  • Outputs : 4 * NMEA-0183 ( RS-422 )
  • Network : 1 * SeaTalk in/output galvanic isolated
  • Baudrates : 1200 Baud - 38400 Baud ( USB up to 57600 Baud )
  • Memory : 2*4 kB Buffer for each NMEA channel. ( 4kB send/ 4kB receive)
  • PC-interface : 1 * USB virtual serial port for NMEA sending and receiving



Items in stock : 1
This product was added to our catalog on Saturday 26 November, 2011.
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I can't download the latest firmaware version
Well - I just tried it again and it worked for me. If you still have problems to get, just send me a mail and I can sent it to you. Frank

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I can't download the latest firmaware version

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Thank you but I've not receive your mail Can you send it again ?

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Apparently this did not ever make it into a product. I'd still be interested in one, so any other advice or pointers? Thanks, Harri

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Hi, Is the true wind calculation based on STW or SOG, or is it configurable? I'd prefer SOG if present. Thanks, Harri

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NMEA to WiFi Adapter (network udp & tcp)

Hello, I have developed a NMEAtoWiFi adapter. [img:3e151e495f]http://dg5lm.darc.de/Bilder/IMG_7555_1.JPG[/img:3e151e495f] By using this adapter you can connect your notebook for plotting and navigation and additional devices like tablet or smartphone to your existing NMEA source at the same time. No need for cable splitting... The device can act as an accespoint or can be connected to an existing WiFi network on your boat. I have successfully tested connection to NV ChartNavigator and OpenCPN on notebook and android smartphones. Combined NMEA data (AIS & GPS) came from the Lowrance LINK-8 and were transmitted by TCP network to the NV ChartNavigator. On android tablet and android smartphone you can use the builtin UDP connection to get data from NMEAtoWiFi adapter. regards prillo[/url]

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Hi Frank, I uploaded the new versions of the config tool v1.14 and firmware V2.8. Everything works perfectly well, especially the "true wind" data are now being sent over NMEA ports. Thank you very much for this great work. Best rregards Pierre

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Ok Frank, thank you very much for this update. As you saw it on the shema of my installation on board, the multiplexer is very solicited too. So it is with pleasure that I will report to you on the operation of the multiplexer. Best regards. Pierre

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New Firmware V2.4 and new config tool V1.13

Hi Pierre - and everybody else how might be interested. I just uploaded a new package to our download section. It contains * latest Firmware V2.4 * new config tool V1.13 - With this firmware and config tool, you can configure to which port you could like to have sent true-wind data calculated by the multiplexer. - This firmware also contains some bugfixes for problems we found over the last weeks. A user from the far north :) really help us a lot to find and fix problems that could arise when the multiplexer is operated at its limits. He used all 4 Ports + SeaTalk, some ports set to 38400 Baud and others with just 4800 Baud. In this situation it could come to data corruption due to buffer overflow. - Since I don't have a NMEA wind instrument for testing, maybe you could test it give a short feedback, so that I know if it works as expected. Thank you and best regards Frank

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Ok thank you very much Frank. I will now stop scratching my head :lol: And I look forward to updating the firmware. My best regards. Pierre

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