Sounds like a wonky ground. ___________________________ Mangled by my iPhone. ___________________________
Tyler Treat Corn Belt Technologies, Inc. [email protected]<mailto:[email protected]> ___________________________ On Mar 6, 2015, at 5:28 PM, Darin Steffl <[email protected]<mailto:[email protected]>> wrote: Ok so after further testing on-site where the issue was, we found that a nanobeam m5 and nanobridge m5 would not be powered by the 750up while the POE inserter and power supply were plugged into the house power. The Loco M2 still powered up fine as well as the router. When we swapped the power supply from the house power to our power inverter in the car, everything powered up great including the nanobeam and nanobridge. Any ideas what kind of power issues would cause this inside the house? There was some other devices plugged into the same circuit with no obvious issues. The homeowners just did electrical work as well and the problems started after that. Any engineering people who have any idea on what would cause this? On Fri, Mar 6, 2015 at 4:11 PM, Vince West <[email protected]<mailto:[email protected]>> wrote: That is also possible too. The only reason I mentioned 750UP firmware is because I have some old ones that suffered from the firmware issue. It's now the first thing I check before powering devices with it. I personally haven't had much issue with NanoBeams in the cold weather. We have seen some cold weather here in KY we haven't seen in a long time and luckily **fingers crossed** we haven't had issues with them. Vince West Tower Hand Technical Support Shelby Broadband 148 Citizens Blvd Simpsonville, KY 40067 Phone: 1-888-364-4232<tel:1-888-364-4232> On Fri, Mar 6, 2015 at 5:02 PM, Mathew Howard <[email protected]<mailto:[email protected]>> wrote: It shouldn't be too much draw for it, no. If I remember correctly, the RB750UP is supposed to be able to supply a total of 2.5 amps and up to 2 amps per port. With the early firmware, the RB750UP could only supply something like 500mA per port, and that often caused problems. I'm wondering if there's something wrong with that particular batch of NanoBeams, where they're overheating and drawing an abnormal amount of power or something like that. On Fri, Mar 6, 2015 at 3:44 PM, Vince West <[email protected]<mailto:[email protected]>> wrote: The RB750UP comes with a 2.5A power supply if I am not mistaken. comes with a .05A power supply. I can't imagine, unless you boot 4 of them up at once, that the draw is too much for the NBM5. I am just guessing, as I don't have a site with more than 3 devices drawing power when it boots. Vince West Tower Hand Technical Support Shelby Broadband 148 Citizens Blvd Simpsonville, KY 40067 Phone: 1-888-364-4232<tel:1-888-364-4232> On Fri, Mar 6, 2015 at 4:41 PM, John Woodfield <[email protected]<mailto:[email protected]>> wrote: +1 on firmware and routerboard firmware upgrade as well John Woodfield, President Delmarva WiFi Inc. 410-870-WiFi -----Original Message----- From: "Vince West" <[email protected]<mailto:[email protected]>> Sent: Friday, March 6, 2015 4:34pm To: [email protected]<mailto:[email protected]> Subject: Re: [AFMUG] Nanobeam M5 and RB750up short circuit power issue Make sure the firmware for the 750UP is up to date. I know I had some issues with 750UPs that had current RouterOS at the time, but was still running firmware that was pretty old. I honestly don't recall what firmware version it was, but it seemed to clear up the problem I was having. Current firmware version on RouterOS 6.27 is 3.22. I am almost positive there was a firmware version out there that caused issues with the PoE functionality. Please note, I was also doing this on a test bench, no on anything in the field. Vince West Tower Hand Technical Support Shelby Broadband 148 Citizens Blvd Simpsonville, KY 40067 Phone: 1-888-364-4232<tel:1-888-364-4232> On Fri, Mar 6, 2015 at 4:32 PM, Mathew Howard <[email protected]<mailto:[email protected]>> wrote: Odd... it sounds to me like the NanoBeam is drawing too much current. Will the power up from the 750 after they've been sitting awhile and cooled down, or is it really just one time? On Fri, Mar 6, 2015 at 3:22 PM, Darin Steffl <[email protected]<mailto:[email protected]>> wrote: The included power supply. We have plenty of the NanoBeam M5's running off the 750's as well except for this most recent batch of Nanobeam feedhorns with a 1442 data code. On Fri, Mar 6, 2015 at 3:06 PM, Mathew Howard <[email protected]<mailto:[email protected]>> wrote: What are you using for a power supply on the RB750UP? We have quite a few NanoBeam M5's running off of RB750UPs with no issues. On Fri, Mar 6, 2015 at 2:43 PM, Darin Steffl <[email protected]<mailto:[email protected]>> wrote: Hello all, I am running into a very weird issue between our Nanobeam M5 400mm 25db feedhorn and a Mikrotik RB750UP. When I try to power up the M5 feedhorn with the POE out ports on the Tik, the feedhorn powers up the first time and stays online until I unplug it. When I plug it in a second time, it no longer powers up and doesn't even attempt to turn on. When I force the POE port on, it says short circuit and does not power up. If I plug in a Loco or M2 nanobeam feedhorn, they power up all day every day as many times as I can plug them in. So to test further, I plug in a second and third M5 feedhorn and they all power up the first time only and when plugging in for a second time, nothing at all. I've tried 3 Tik's from different batches and they all do the same thing. M5 feedhorn has issues, locos and m2 feedhorns fine. The only thing I can think of is the M5 feedhorn support 1000 Mbps LAN speed but it has always been fine running on these RB750UP before without issue which is very weird. Also, the M5 feedhorns aren't fried when I do this as they power up just fine from a standard ubiquiti POE afterwards. They'll just never power up again from the 750UP. Any ideas? -- Darin Steffl Minnesota WiFi www.mnwifi.com<http://www.mnwifi.com/> 507-634-WiFi [http://www.snoitulosten.com/wp-content/uploads/2010/01/facebook-small.jpg]<http://www.facebook.com/minnesotawifi> Like us on Facebook<http://www.facebook.com/minnesotawifi> -- Darin Steffl Minnesota WiFi www.mnwifi.com<http://www.mnwifi.com/> 507-634-WiFi [http://www.snoitulosten.com/wp-content/uploads/2010/01/facebook-small.jpg]<http://www.facebook.com/minnesotawifi> Like us on Facebook<http://www.facebook.com/minnesotawifi> -- Darin Steffl Minnesota WiFi www.mnwifi.com<http://www.mnwifi.com/> 507-634-WiFi [http://www.snoitulosten.com/wp-content/uploads/2010/01/facebook-small.jpg]<http://www.facebook.com/minnesotawifi> Like us on Facebook<http://www.facebook.com/minnesotawifi>
