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airCube AC and NanoSwitch

Will a airCube 'handle' POE-in on WAN side without doing smoke and still function at 1 gig-e ?

 

I have cases where I want to swap current EP-R6 to NanoSwitch (and install new), for cost and simplicity,

but this also means I can't turn off PoE out on the NanoSwitch, and the airCube does not support PoE-IN on WAN.

 

(Even though both N-SW dip switch and ACB PoE-IN has been requested bunch of times, early on.)

 

/Paetur


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Regular Member
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Re: airCube AC and NanoSwitch

Hello @Paetur

 

The case you described is work for me with 1GB ethernet and no smoke in airCube. Tested with ACB-AC powered with standard PSU with 24V POE in WAN port. Also PoE Passthrough switch if OFF.

 

Majo

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Ubiquiti Employee
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Re: airCube AC and NanoSwitch

Let me check...
Regular Member
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Re: airCube AC and NanoSwitch

Hello @Paetur

 

The case you described is work for me with 1GB ethernet and no smoke in airCube. Tested with ACB-AC powered with standard PSU with 24V POE in WAN port. Also PoE Passthrough switch if OFF.

 

Majo

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Re: airCube AC and NanoSwitch

Paetur,

 

It should be fine unless there's some strange ground loop issue between the NanoSwitch port's power supply and the AirCube's power supply.   But as long as both unit's power is coming from the same AC source and ground it should be fine.   I would turn off the ACB's passthrought power out to the WAN side to keep any current flows from happening through the ethernet transformers.

Jim

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Ubiquiti Employee
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Re: airCube AC and NanoSwitch

I have asked our hardware team for an answer on this as well.
Veteran Member
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Re: airCube AC and NanoSwitch

We connect airCube WAN ports to our provisioning rig on the bench (with 24V PoE active) on a regular basis, with no ill effects.

 

As an aside, given the history, I can't see UBNT designing any Ethernet port that would not survive a connection (intentional or not) to 24V passive PoE.

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Re: airCube AC and NanoSwitch

[ Edited ]

IMG_5686.JPG 

 

Majo