Looked back a few pages and didn't see anything related to this so my apologies if I am duplicating another thread.
I've recently noticed I have a DtDlink between a 5g PowerBeam and a 2.4 AirGrid using a EdgeRouterX that is not getting 100% on its NLQ at times.
Could this be a bad cable? If its not a bad cable, could it be a bad port on the EdgeRouterX? Other things to look for? Network traffic?
Thanks in advance..
Nick
VA7NIC
I've recently noticed I have a DtDlink between a 5g PowerBeam and a 2.4 AirGrid using a EdgeRouterX that is not getting 100% on its NLQ at times.
Could this be a bad cable? If its not a bad cable, could it be a bad port on the EdgeRouterX? Other things to look for? Network traffic?
Thanks in advance..
Nick
VA7NIC
Yes, it is a PowerBeam M5 400, and now I've look at the thread of info you provided, seems the problem started when I switched POE injectors.
I will attempt to lock the port.
Update: Locking the port on the EdgerouterX to 100/full seems to have corrected the problem for now. Will keep an eye on it, as well as future fixes that may solve the original issue.
Thanks!
Most of the AREDN "hardware stable" designed for 100 MB but the PowerBeam M5 400 has GB and comes with a Gigabit POE.
There is G a the end of the POE part number (although some early ones had no nameplate at all).
The problem is not the speed of operation.
The Gigabit POE is wired differently - uses 4 transformers instead of 2 and different pins for the voltages.
You cannot put a 100 MB POE injector anywhere on a system that is using GB communications (it will screw things up)..
I have taken to putting an obvious label on my GB POE's so I am less likely to accidentally swap them with the wrong one.
Passive POE injectors have the same problem. And not all 3rd-party Gigabit POE injectors will work with UBNT (the "WIFI Texas" ones have worked for me).
If you want to upgrade your wired links to GB speeds, you may have to replace some or all of the POE injectors, depending on exactly what you are doing,
Ubiquiti sell replacements for this purpose: https://www.amazon.com/Ubiquiti-POE-24-0-5A-Gigabit-Port/dp/B00NAENDX4/ref=sr_1_4
I see in the PBE-M5-400 specs it is using the "G" 0.5 amp Ubiquity 12W power brick. When looking at the PoE Adaptor datasheet, all the 12W bricks are using "mode B" which is using the same wires for POE as the 10/100Mbps only devices -- "Pins 4, 5 (+) and Pins 7, 8 (-)". The "mode A" usage of " Pins 1, 2, 4, 5 (+) and Pins 3, 6, 7, 8 (-)", looks only to be on some higher power Ubiquiti bricks.
The 1Gb rates/data and DC voltage share some common wires with both A and B modes. Also, 2 transformers to do Mode B and 4 transformers to do Mode A. But looks like the PBE-M5-400 is using mode B, thus compatible with power from a Rocket POE brick, ToughSwitch, or other 10/100Mbps only device brick.
https://dl.ubnt.com/datasheets/poe/PoE_Adapters_DS.pdf
Joe AE6XE
I should clarify that my issues were related to the F-POE-G2 and I extrapolated that to all GB-rated devices (oops). I suppose the F-POE-G2 uses mode A.
The fact that there is a mode A and mode B explains why one vendor's set of "GB-rated" POE injectors worked and another one didn't.