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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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1answer
56 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
2k 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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1answer
25 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
2k 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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4answers
1k 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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0answers
13 views

Location-dependent problems with PoE with confirmed-good components

Project: 6x PoE IP security cameras. 2x PoE switches (3 cameras each) in two locations (house & barn) connected via a wireless bridge. Problem: PoE switch, when installed in the barn, will only ...
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2answers
245 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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2answers
38 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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2answers
75 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
528 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
52 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
318 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
2k 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
76 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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1answer
99 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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0answers
151 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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0answers
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
137 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
3k 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
92 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
2k 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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0answers
214 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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1answer
40 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
1k 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
25k 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
1k 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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1answer
285 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
270 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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1answer
107 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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1answer
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
1k 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
910 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
54 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
216 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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0answers
95 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 ...
2
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1answer
815 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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1answer
192 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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7answers
32k 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
433 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
475 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 ...
30
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1answer
58k 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 ...
2
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2answers
4k 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
138 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 ...
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4answers
7k views

Does a wireless access point with PoE ports exist? [closed]

I'm currently making my own, because I have yet to find a company that makes an access point with PoE ports. I have seen several APs that are powered by PoE, but they don't pass 48V to their ethernet ...
0
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1answer
433 views

Networking a POE VOIP phone and a non-POE router with one Ethernet port [closed]

I'm wiring up an office with one available Ethernet wall jack. The jack currently services a VOIP phone that is powered over the Ethernet cord and has no normal plug. I need to set up a small network ...
6
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1answer
4k views

Is it harmful to plug a POE energized data source into non-POE NIC card? [duplicate]

Some of our wired ethernet data connections are energized with Power Over Ethernet at 48 volts. But not all of our devices utilize POE. Is it harmful to plug a device into POE when the device's NIC ...
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5answers
19k views

Can i carry power through ethernet cable

I am thinking of using CAT6 cable to send video and power to CCTV cameras. I know that CAT6 cable can carry the video signal, but I want to know if I can also pass the power to cameras via one pair of ...
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2answers
1k views

Voltage range of a PoE Plus switch

I have a WiFi module until now I supplied through a PoE injector. According to the documentation the WiFi module voltage requirement is the following: 12V Passive PoE (accept up to 22V). I also have ...
27
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5answers
60k views

Can I connect a PC to a PoE switch?

I have a switch with Power over Ethernet capabilities. Is it allowed to connect a PC to a PoE switch?
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2answers
8k views

Can Power Over Ethernet be daisy chained?

I am planning a wireless network that will involve a wireless radio modem that must be mounted pretty far from my house on a post (Needs line of sight to work) and then getting the signal back over to ...