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Airfiber 24 drawing high current off ws-24-400b
Posted: Fri Apr 29, 2016 6:46 pm
by redpeppers
I have two airfiber24 radios, one in eth1 and one in eth2 (both configured for 48VH) on a ws-24-400b. According to the netonix GUI the AF24 that is plugged into Ether1 is drawing ~55 watts but the AF24 in ether2 is drawing ~82 watts. Could this be a cable issue? The link is up but obviously I don't want to leave it like this because it seems that it is exceeding the rated output power of the netonix interface.
Re: Airfiber 24 drawing high current off ws-24-400b
Posted: Fri Apr 29, 2016 7:00 pm
by sirhc
What firmware version? Upgrade if not v1.3.9 and reboot just for giggles.
55 watts is not far off but 80+ watts - WOW
Yea that seems wrong, real wrong.
Possible causes:
Bad current sensors -possible
Damaged current sensors - possible
Damaged radio pulling to much power. - Doubtful
82 watts is exceeding the port rating so if it is correct failure is very probable.
I would investigate.
You could swap the ports and see if the ratings follow.
Re: Airfiber 24 drawing high current off ws-24-400b
Posted: Fri Apr 29, 2016 7:04 pm
by redpeppers
Firmware is 1.3.9.
I will eliminate the port being a problem by switching to another interface. It appears that only ether1 and ether2 have 48VH correct?
Re: Airfiber 24 drawing high current off ws-24-400b
Posted: Fri Apr 29, 2016 7:37 pm
by sirhc
redpeppers wrote:Firmware is 1.3.9.
I will eliminate the port being a problem by switching to another interface. It appears that only ether1 and ether2 have 48VH correct?
Yes the 400B only offers 48VH on ports 1 and 2
Do not try and power AF24 on normal 48V ports
Re: Airfiber 24 drawing high current off ws-24-400b
Posted: Wed May 18, 2016 5:56 pm
by redpeppers
ok so with nothing even plugged into ether2 on the netonix switch it still shows a wattage draw of 40~ watts. What do you think?
Re: Airfiber 24 drawing high current off ws-24-400b
Posted: Wed May 18, 2016 6:02 pm
by sirhc
Sounds like the current sensors are damaged?
This occurs from the components being exposed to voltage > 60V which would be from ESD or ground potential shift.
Read the grounding posts on good grounding practices.
viewtopic.php?f=30&t=188viewtopic.php?f=30&t=1429
Re: Airfiber 24 drawing high current off ws-24-400b
Posted: Wed May 18, 2016 6:05 pm
by redpeppers
It was like this right out of the box. I first posted it the night i installed it.
Re: Airfiber 24 drawing high current off ws-24-400b
Posted: Wed May 18, 2016 6:09 pm
by sirhc
redpeppers wrote:It was like this right out of the box. I first posted it the night i installed it.
I guess it is possible but we do check the current sensors before we serialize them?
If they were damaged it is easy to spot as they look like picture 4 and or 5 of this post, they are what most blow current sensors look like which does not just happen on its own.
viewtopic.php?f=17&t=1697#p12743Either way read this post on how to RMA it and it also shows you how we test each switch before we assign the MAC address.
viewtopic.php?f=6&t=1259