I know there's plenty to choose from in Amazon. I did buy one and also purchased a switch. Now the switch works great but the injector did not work with the camera at all.
Most of the cameras are outside and now I'm using the switch just to power 1 camera inside when i really need it to be set in my laundry where it can be closer to wire all my other cameras.
This is the description of the poe injector.
POE200 30W Gigabit PoE Injector Adapter, 30W,10/100/1000Mbps RJ-45, IEEE 802.3af / 802.3at
But it does not power the camera.
The switch is.
TP-Link TL-SG1005P V2 | 5 Port Gigabit PoE Switch | 4 PoE+ Ports @65W | Desktop | Plug & Play | Sturdy Metal w/ Shielded Ports | Fanless | Limited Lifetime Protection | QoS & IGMP Snooping | Unmanaged
Were dud i go wrong with the POE? I'm new to all this Poe stuff so i know i chose the wrong one. But the camera i need it for.
Amcrest 5MP UltraHD Outdoor Security IP Turret PoE Camera with Mic/Audio, 5-Megapixel, 98ft NightVision, 2.8mm Lens, IP67 Weatherproof, MicroSD Recording (256GB), White (IP5M-T1179EW-28MM)
And using another switch will be a waste as this will be the only camera inside the house that i need POE for. And wiring all my cameras from this spot will be close to impossible either way. Running a cable just for this camera from the laundry room will be close to impossible because of the way my attic is. I have no access from the attic to this particular closet that's why I chose a POE injector.
An injector does the same thing as a POE switch; it places 48v on the Cat5e pairs designated for power. The camera should work on a POE switch port without the injector. The camera is 802.3af compliant, so it should have no problem with the 48v input from the switch.
@alexd51
I have a lorex PoE system. The cameras has a 12v pigtail input when PoE isn’t present but the PoE voltage is 48v. What voltage were you trying to inject with the injector?
if your Amcrest came with a power supply - check the label on that to see what the voltage called output is. I've painfully aware that POE can come in many voltages - a 12v input as your title suggests may require you to disable the voltage on the POE port (or you may fry the injector) and then implement something like this:
I understand the difference between both units the switch and the injector doing the same thing. Like I mentioned before wiring from the switch will be a major undertaking because of where the camera is. That's why I needed the injector.
With that said you pretty much answered my question on why the PoE injector didn't work. If this injector is 48v then that's my problem my camera is a 12v so I screwed up.
It worked on the switch and that's were is plugged right now. The injector was purchased so i can take the switch else ware to connect my outside cameras as where the switch is now i will have a major project to wire the rest of the cameras from where it is.
My problem was that i got a 48v injector when i needed a 12v injector.
The first option is through the ethernet port and it is 802.3af compatible. Which means: when it is powered through the ethernet port (POE), it is receiving 48 volts from the ethernet cable and the camera is designed to work with this.
The second option is to not power the camera through the ethernet cable and instead power it through its power adapter (this is the other input shown in the picture above), it you choose to go this route (no POE power) then you need to supply 12 volts to this adapter.
The below screenshot from the camera's specifications, should NOT be understood as the camera is POE (802.3af) and requires 12 volts through POE. But should properly be understood as you have two distinct powering options, one is through the 12 volt adapter and the other is through 802.3af networking gear.
Most Dahua cameras I have seen (this amcrest camera is manufactured by Dahua) have this optional 12 volt power port. I have never heard of anyone using it. For the camera to deliver its video, it needs a ethernet cable plugged into it (obviously). One end of the ethernet cable is plugged into the camera, the other end is plugged into some type of network gear (typically a switch). If this network gear is already 802.3af compatible you are good to go. If not, simply change the network gear to 802.3af compatible or install a 802.3af injector right beside this network gear.
I tried this route and could not add the camera to my system. Tried different cables with no results. Camera would power up but it would not connect to the network. Then when I plugged it to the switch it was discovered immediately after it booted up. So the injector might be the problem then you think? It does power up and all but no power to the camera and i dont have anything else to test it with that is poe that is not already installed.
For some reason the POE injector would not even power the camera up at all. I actually was going to return them to amazon and started the return but then wanted to try the starlight feature that i have heard so much about and tried with the switch and it worked so i kept the cameras.
If you are using the second option, then you are NOT using an POE injector. You are providing 12 volts to the camera's auxiliary power connection and then using no POE switches and/or injectors to power the ethernet cable.
I would leave this auxiliary power connection alone. If you have a 802.3af compatible switch/router, then plug the camera into that and see if it works. If you don't have this network gear, plug a 802.3af injector into a standard switch/router and then plug the camera into this injector . If neither of these options work, I would return the camera. It it does work, then I would again test it with the cable (presumably a fairly long cable) that you are going to use for the camera's installation. If this works, install the camera, put the camera at the end of it and you are good to go.
You misunderstood me.
I first tried the PoE injector, connected a cat 6 from the regular switch (NONE POE) to the injector and another cat6 from the injector to the camera NO 12v power supply. The camera did not work. It's supposed to get the power from the cat6 cable right? so no need for the 12v power supply.
Then I connected a 12v power supply to the camera and a cat6 coming from the NONE POE switch and the camera for some reason was not getting connected. I could not find it with the app. blue iris couldn't find it either. Neither did the router. Tried a couple of different cables with no luck.
On my 3rd try, I used a POE 5 port switch with a cat6 to the camera and I got it to work.
Problem solved.
But that leaves me with a 5 port switch being used to just power 1 device that I need or want to use somewhere else. That's why I bought the PoE injector to begin with, so I didn't have to waste a switch for just 1 camera.
Maybe a couple silly questions, but you plugged the PoE injector into a power outlet right? That’s where the injector gets power to put onto the Ethernet output. Also you connected the switch to the input on the injector (data), and the camera to the injector’s output (power+data)?
There are no silly questions.
But yes and yes to both.
I did make sure it was connected the right way and being OCD I even inverted the cables and tried again with NULL results.
Just to keep things clear so you're not chasing your tail, the PoE standard is 48V (it's actually a small range but never 12v), there are no different variations. So you don't have to concern yourself with a 12V PoE device. If you've connected the Camera to a PoE source (a PoE switch or separate PoE injector) they will both be the same at 48V. There's no magic, if your camera does not power up and connect then there are only a few things that could be the problem. The PoE supplying device is faulty, the camera is faulty, or the cables are faulty. Ethernet only needs 2 pairs for communication, the other 2 pairs are used for PoE. But some patch cables will only use 2 pair to save money rendering PoE useless. I hand make all my cables so I don't have to worry about that but maybe check yours.
