Questions tagged [power-over-ethernet]

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Data throughput/latency and poe performance in TPLINK TL-SG2424P 24 ports POE Managed Switch

I recently bought a TPLINK TL-SG2424P 24 ports POE Managed Switch. At the moment I'm going to use it with only a handful of access points, no more than 4 or 5, at least until the end of the year ...
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16 views

MikroTik router port not working LED always on

I have a MikroTik RB4011 router with port 10 marked as a PoE-Out port. I have not yet used this port but now I have a TP-link AC1200 access point which has no power cable but requires PoE. On the ...
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1answer
155 views

PD detection by passive PSE PoE (injector)

As I understand IEEE PoE standards, the PSE detects PoE capability of the connected device (PD) by measuring resistance on certain pairs and then negotiates its PoE requirements. Questions: Do ...
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Plugging a POE Injector into a POE Switch

I have had this situation happen a few times where I found a device that was being supplied POE from an injector and that injector was plugged into a switch that is already providing POE. Obviously I ...
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385 views

Dumb Switch to Smart Switch - Ports going up and down, what's up?

I just switched from a dumb switch 10/100 to a smart switch HP 1920-24G-PoE, and noticing ports going up and down randomly. I can't see any obvious reasons why this is happening so am curious if ...
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1answer
222 views

PoE from 2960 without Layer 1 Connection

I'm attempting to use a Cisco 2960-X (LPS-L) to provide power for a some Nexus 7 tablets (via a TP-LINK PoE Splitter). The issue is that without some actual device connected to the LAN port of the ...
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1k views

Dell PowerConnect Power Over Ethernet randomly faulting

I have a dell PowerConnect 5524P that is having an odd issue. On a fairly regular basis, I check the status of the PoE system on my switch. The PoE ports almost always list their status as Fault, and ...