Young Entertainer 59 Posted August 25, 2019 Share Posted August 25, 2019 Got a Zesus2 with three triton displays, out sailing last Sunday and all the instruments stopped giving readings, boat speed, depth, and wind. Back in the marina I unplugged and replugged in the data plugs from the bus? then it all started working again, but now when ever I leave it off for a day and then power the instruments back on the wind gear does not get any data until I unplug and replud in the cable from the bus. Any ideas on what might cause that, it seems once it is running it is fine, but maybe not getting a data source on start up. Quote Link to post Share on other sites
Island Time 1,239 Posted August 25, 2019 Share Posted August 25, 2019 Most likely is power supply issue to n2k bus. Check for voltage drop to bus supply, while everything is on. Quote Link to post Share on other sites
Young Entertainer 59 Posted August 25, 2019 Author Share Posted August 25, 2019 thanks will try some testing tonight and see how i get on Quote Link to post Share on other sites
splat 55 Posted August 26, 2019 Share Posted August 26, 2019 Also, while you are at it you said Zeus 2 right ?...make sure software is up to date. Quote Link to post Share on other sites
raz88 96 Posted August 27, 2019 Share Posted August 27, 2019 We had similar symptoms a while ago. Turned out one of the n2k terminators was failing. Quote Link to post Share on other sites
Young Entertainer 59 Posted September 2, 2019 Author Share Posted September 2, 2019 so after trying lots of options and getting no where the B&G helpdesk had me confirm the connection of each piece of the network, MHU was plugged into the first T but it was plugged into 90 degree part of the T rather than the the Cross Bar, apparently if not plugged into the Crossbar as it is a terminating end then it causes problems, and the autopilot needs to also be plugged into the 90 degree bit not an end so swapped these over and seems to have solved the problem. Just incase any one has the same problem Quote Link to post Share on other sites
Island Time 1,239 Posted September 2, 2019 Share Posted September 2, 2019 Yep, basic installation issue, lack of understanding of NMEA2000. Its in the install manuals, but basically; The MHU has a built in terminator, and must be on one end of the bus (or backbone) At the other end there must be a terminator. ALL other devices come off the 90 deg bit - the drop cable connector. Drop cables should be less than 7m. The power connector should be near the middle of the bus. Quote Link to post Share on other sites
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