Questions tagged [power-over-ethernet]

Sending power over the ethernet cable on devices compliant for the IEEE802.3af or IEEE802.3at standards.

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Homemade Cat6 ethernet not working when PoE is in use

I've just crimped together a couple of CAT6 Ethernet cables. The cables are about 20 meters long each. They are shielded and so are the connectors. They run along each other from one room to the ...
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2answers
67 views

Proper electrical safety of PoE Equipment

Working on a residential install in my own home. I have a small closet network setup in my office with an unshielded patch panel, a PoE-capable switch, and a rack-mounted surge protector. The switch ...
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3answers
236 views

Security Cams - Power through PoE Keystone Jack?

I wired up some PoE security cameras at my home, using solid core CAT6 cable. I can do a direct connection from camera to the surveillance box, but to make it clean and allow for flexibility, would ...
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54 views

Ethernet surge protector interrupting internet connection

I'm having a problem with connecting a security camera to the internet. The connection is as follows: Wifi repeater ethernet port -> POE injector -> ethernet surge protector -> camera. With ...
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59 views

An 802.3af PoE splitter/injector pair has failed. How can I diagnose if the injector or splitter is at fault?

I have a wireless bridge that is USB powered in a remote location. I have a standard 802.3af PoE injector on one side of an ethernet run, and PoE splitter on the other side of the run. The POE ...
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1answer
61 views

Placing Wireless-AP and DECT VoIP Base Station side by side - will they disturb each other?

I need to place a wireless access point and a DECT VoIP base station into an office. Now there is a perfect location in the center of the room, which is why I am thinking about to assemble both ...
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1answer
799 views

Want wireless bridge which provides POE (power over Ethernet) [closed]

I have an IP camera in my mailbox with POE. I would like to connect this camera in to my Synology router, but I only have available 3 cables in my mailbox. Is there a wireless bridge which provides ...
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1answer
134 views

Can't configure In-Wall AccessPoint

I have bought COMFAST CF-E537AC In-wall AceessPoint on ebay, I also bought unnamed POE Injector adapter power supply with capacity of 48V 500mA. For the life of me, I cannot access admin ...
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1answer
2k views

POE camera not working with POE switch (does not power on)

I have a POE camera (DH-SD8A840VI-HNI) and a POE switch (Planet GS-5220-16UP4S2X) However, the POE camera will not power on when connected to the switch, even when this camera is the only device ...
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5answers
7k views

Fix Ethernet 10/100 PoE cable with 7 out of 8 wires alive

I have a 10/100Base-T ethernet cable with PoE IEEE802.3at/af installed in my concrete walls. Unfortunately only 7 out of 8 wires are alive. Wire #6 (green) was broken during construction works and ...
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217 views

Cable Tester, Master unit lights up even when the remote unit is not plugged in

I recently started a new job and one of our security cameras went down. I am trying to work out why and want to find out what port the POE cable from the camera plugs into in the switch in the server ...
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1answer
3k views

Can you run PoE Cat6 alongside standard Cat6 cables?

I need PoE for some devices (CCTV cameras, WiFI Access Points) - can these wires be run in parallel with Cat6 cables going to non PoE devices (e.g. datapoints of PC) Cat6 HDBaseT Cables being used ...
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27k views

Can I use a power supply with more output amperage than the router needs?

For some reason when I connect a 5m Ethernet cable to my router it works. When I connect a 10m Ethernet cable it doesn’t work. Router AC Input: 12V, 2A Charger AC Intput: 12V, 2A Can I replace my ...
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2answers
724 views

POE Camera With Wireless

Is there such a thing as POE cameras that also have wireless and use the POE for power only and pickup the video feed via wireless? I'm wanting to have 4 cameras around my house and I have one ...
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127 views

Does it matter if i'm going from a 802.3af Ethernet switch port to a 802.3ab mesh router port?

So from my modem i am using a Ethernet Switch with 4 PoE ports. I plan to connect it to a COVR D Link router and was wondering if it was compatible with the PoE. The data sheet says it's standards are ...
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99 views

Can you inject PoE on a disabled port to turn it on/reset it?

I have an WLAN-AP (Aironet 2600) with just one Eth port that I accidently disabled. As there is no power plug available for now - is there a possibility to run PoE over the disabled port to power it ...
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1answer
1k views

Disabling / Enabling POE on a port by port basis on a netgear smart switch

Ive got a Netgear GS108PEv3 switch. How can i enable / disable the POE function on a port by port basis on this switch, i couldnt find anything in the manual or by hunting around the web GUI.
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1answer
73 views

Using a powered ethernet connection as the input to a PoE injector?

So I have a camera and a siren, both are driven by a PoE connection. I have a PoE switch, but it only can provide enough power to drive the siren. So what I want to do is hook both the camera and ...
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1answer
738 views

Newer AP with older PoE injector

I'm trying to power my newer AP (TP-LINK EAP225) through PoE using the injector that came with my older AP (TP-LINK TL-WA901ND) The old AP does work when powered through PoE using the injector. The ...
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3answers
4k views

Can an outdoor ethernet cable be run underwater?

I'm using a Ubiquiti Nanobeam to connect my home's LAN to a dock around 800 feet away. The dock's Nanobeam will be mounted on an isolated piling that is 10 feet away from the rest of the dock and is ...
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1answer
93 views

How to install BaseBox to switch with PoE

I have a MikroTik BaseBox 2 and a PoE without any Antenna. I want to connect that BaseBox to a switch which is connected an optical fiber in it (Internet). How can I connect a BaseBox to a switch with ...
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113 views

A fiber run is too expensive, so why not use some POE switches to extend the Ethernet run?

Recently at work, we encountered a client with a Ethernet run over 500ft long. As you may know, Ethernet cables are only rated for the maximum of 300ft. In the process of quoting a fiber run, we ...
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170 views

SIP based door entry and phone system

For a residential home, we've allowed for a door entry system, where we'd like to the following: Push button at door entry panel calls all intercom stations (handsets) - audio only From any intercom ...
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27 views

POE-device invisble behind TP-Link managed switch

We are trying to operate POE-powered WiFi APs behind a TP-Link managed switch like this: . However the switch (TP-Link TL-SG3216) shows the port connected to the injector as empty and I cannot see ...
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2answers
204 views

prevent IP POE cameras from congesting the LAN

i am installing a 16 camera ip poe system. the nvr comes with 8 ports and the system comes with a separate 8 port poe switch which needs to connect to the network and not directly to the nvr. if i ...
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2answers
5k views

What could cause Power over Ethernet not to work with a specific cable?

My father-in-law is setting up a home security camera system, and the individual cameras are powered via PoE. (802.3af cameras, 802.3af/at switch built into the NVR.) He's having problems with one of ...
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1answer
265 views

Can i turn off a computer with just one TCP packet

So you can wake on lan, because the ethernet cables are not for data only, they transmit amperage too. If they are directly connected to the motherboard can someone throw a packet and turn off your ...
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1answer
3k views

Is there a way to get 110V AC from a PoE ethernet connection? [closed]

This might be a stupid question, but here goes. We're building a home, and I decided we should have some RJ45 connectors near the roof for PoE cameras. However, now that the house is almost done, I'...
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246 views

Slow upload on PoE AP on long flat cable run

I have this Open Mesh AP on this flat 100' cable, powered via 802.3af PoE. I'm getting 55 mbps download speeds, but only 0.5 mbps upload speeds (should be around 10 mpbs up), testing on speedtest.net. ...
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44 views

Finding the manufacturer/model number of this PoE Switch

I'm not sure if this is the right place to ask this. If not, please direct me to a place for these types of questions. I'm having difficulties finding the model number of a PoE switch. I've attached ...
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1answer
2k views

Is PoE AND PoE+ possible with a Cat. 6a cable? (Cable description below)

This is the cable I would like to take: Dätwyler UNINET 7060 4P FRNC/LS0H (100m, Orange, S/FTP, Kat. 6a) I got another question, is it possible to connect non-poe devices and poe devices to a PoE+ ...
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4answers
44k views

How many volts there are in PoE?

I noticed, that there is no clear notification about PoE voltage. For example, I bought TP-Link WA901ND WiFi AP, which is entitled as supporting PoE. There is no clear statement, on which voltage this ...
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1answer
2k views

POE switch to AP no power

I have a POE TP-Link Switch (TL-SG1008P) and Im trying to power on on a TP-Link AP (TL-WR743ND) through CAT6 Cabling. Ive tried to connect switch and AP direct (no patch panel or modules) and still no ...
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317 views

Do Cat5e Or Cat6? [duplicate]

I recently purchased a pretty-sweet security system. And, Wow! I paid lots of money for it! However, the cables that were provided (Cat5e Ethernet) are of poor quality --too short and not weather ...
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1answer
369 views

Which TIA/EIA-568 terminations I need to plug an AP with PoE to a switch?

I have understood that I have to use the same termination (wheter it is 568A or 568B) in the cable when it is intended to plug a PTE device such as a PC, printer, etc. to a PCE device such as a router ...
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143 views

Do I need any special device to use an AP over POE with a home router?

I am setting up a small network for my office, I have a ZTE F660 router which is provided by my ISP and I am considering buying a couple of LINKSYS LAPAC1200 with POE access points. My question is, do ...
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2answers
3k views

USB-Ethernet Adaptors and Power over Ethernet (PoE)

I have a LeMaker HiKey and I'm having trouble getting the network running in a preferred configuration. The HiKey is an inexpensive ARM64 development board running Linaro. Linaro is a lot like Debian ...
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1answer
2k views

802.3af PoE injector difference in Gigabit vs 10/100?

I have an EnGenius EAP350 Access Point that supports 802.3af PoE. After digging through the specs sheets online, I believe that the AP requires 48V@.375A when using POE. Currently I have the AP ...
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1answer
1k views

PoE: Can I use the TL-POE150S injector with the Unifi AP?

My PoE (Power over Ethernet) injector is a TP-Link TL-POE150S that, according to the specifications, is supposed to perform auto-sensing for the needed power of the remote powered device at 15.4W (Max....
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1answer
55 views

Does anyone know the name of this component?

I think what this does is give power to the Ethernet cable that is attached to the satellite above the house.
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2answers
244 views

PoE injector to power wifi IP camera

Can I use a PoE injector to power an IP camera where routing an ethernet cable would be more convenient due to cable length, but use the IP camera's wifi as the physical layer for data...? I would ...
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98 views

PoE device ~180m from data source

I work installing bespoke comm's equipment as part of my role. The "typical" setup involves a PoE wireless access point, fed by an ethernet cable coming from bespoke PoE hardware to interface with the ...
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1answer
2k views

Can I enable Power over Ethernet from a MacBook Pro?

I've recently gotten a Cisco IP telephone. I've an Macbook Pro (15", Late 2011): Is there any way to enable PoE to test my phone? Or do I have to buy an extra PoE injector just for this purpose?
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211 views

Gateway set to unexpected PoE interface in ADSL modem

This issue came up during a routine check on my router/modem settings. Details follow. I use a TP-Link TD-W8901N ADSL modem (specs here) facing the internet. The modem manages a 192.168.1.x subnet, ...
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75k views

Do RJ45s need to be wired differently to enable POE (Power over ethernet)?

On larger projects we tend to buy CAT6 in drums of 1000ft, these are then run to the locations as required and RJ-45s placed on the ends by the electrician, this all works fine. Were now starting to ...
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1answer
571 views

How to restrict access to Ethernet ports outside of physical permiter

I have several PoE IP webcams installed on my house. Each mounting point has only one wire going to it: the Cat6 with 8P8C plug at the end, which both powers and communicates with the camera. I ...
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0answers
587 views

Power over Ethernet device not powering up but computers can use same outlet for data

We have an office where a Power over Ethernet device cannot power up; however, if a computer is plugged into the same outlet, it has no trouble using it for data transfer (100 Mbps). In fact, we have ...
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1answer
74k views

Power-over-ethernet to non-PoE device [duplicate]

While I can find lots of information about PoE, I'm finding little about "gotchas" or "warnings". That being said, what would happen if I configured a switch to give PoE then plugged that into a ...
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2answers
6k views

Daisy chaining PoE switches for IP security camera system

I have a fairly large (for me) security camera system to install and the cost of cabling is keeping this project cost prohibitive. I'll outline what I'd like to do, and welcome comments on the ...
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1answer
139 views

Can I do Ethernet over Power for [closed]

I have a 1000-yard 220 volt electrical line (AC) that runs from my house to a water pump. I want to install a microcontroller (Arduino or R.Pi) to read a digital thermometer and send the information ...