Active POE and Passive POE Devices
Hi there, really hoping someone can help
I have a SG2005P-PD Outdoor switch which I can attach to an existing EAP225 Outdoor Access Point without any problems at all.
Today I tried to plug an EAP215 Bridge Kit (The main half) to the switch but I just couldn't get it to work. I'm guessing it probably has something to do with the fact that the Bridge Kit seems to be a Passive POE device and the SG200 switch is an Active Device. At least that's what I think the two devices are?
I didn't realise when I bought the EAP215 Bridge Kit that there would be any problem, especially not as the EAP225 works fine with the switch. I just assumed that the Bridge Kit would automatically connect, after all they are all TP Link and my other Access Point works just via an ethernet cable form the Switch. I'm a bit mystified as to why two bits of kit like that should be using a different method of power/connection.
Is there anything I can do to resolve the problem, short of running another POE cable from the house? I don't really want to run a new cable and use the Injector that came with the Bridge Kit as its an exceptionally long run and I'll need to go through some very thick stone wall to access it any nearer.
Is there something I can put between the Switch and the Bridge Kitthat will enable them to communicate?
thanks in advance
Hi @Skewett,
How are you powering the SG2005P-PD? The EAP215-Bridge requires 11.5W and the EAP225 requires 12.6W (little less in EU), so total is 21.4W. If you're not using the 802.3bt type 3/4 POE source, you'll be a few watts short of the power needed. Try using a POE++ injector or a POE++ switch.
The Switch is powered by a 60w injector, attached to the mains power and the main router.
The screenshot suggests that with my EAP access point and one camera attached in only using 35.80 watts.
I would have thought the remainder would be enough to power the Bridge.
I have tried unplugging everything from the Switch but the 60w imput from the injector and it still doesn't light up the bridge. 
@Skewett, TP-Link makes this splitter, but it's not outdoor rated so it's up to you to enclose it. You would also need to verify it can withstand any tempature ranges where you plan to install it. The TP-Link one has multiple voltage options, so set to 12V/1A should be enough to power the 11.5W bridge unit. I like the variable voltage option for a lab, but for a permanent install, I was thinking of something more like the one pictured below. External links usually get blocked, but you can probably use google lens to find it. Just make sure it's 802.3at/af, 12V/1+A (i.e. >11.5W), gigabit and rated for the environment where you install it.
