Cable over ethernet for two Wireless access points

Jul 23, 2004 5 Replies

I need to know if it is possible to power two LInksys WAPs (WRE54G) using power over ethernet and if so how?



I am guessing that I could simply put a small passive hub at the point where the first device exists. Split the ethernet cable. Then use the adapter to separate out the power from ethernet - on one of the split out cables. Leave the other cable to run to the other WAP and do the same?



Workable?



Better solution?



Bob Alston



Have you taken a look at the Linksys power over ethernet adapters.

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This looks like exactly what you are looking for. One end is the "power injector" and the other end (located wherever you place the WAP) is the "power take off" unit.

Looks to be in the $50 range. You'd need one set for each WAP you need to remote power.

John

-- John P. Dearing A+, Network+ To reply: Just drop "YOURPANTS" in my address! 8-)

Thanks John. that is exactly what I was looking at. However my real question was the ability to use one injector module - adding power to the ethernet - and two other modules at the devices needing power. And how exactly to do the ethernet splices - as per my note or otherwise.

Also, any issue with running POE in an ethernet cable run outdoors in Wichigan weather and winters?

Bob

-=[ deletia ]=-

It looks like you're going to need two sets of these devices, one for each WAP. I reread your post and I would strongly suggest that you forego the passive hub approach and just run TWO ethernet cables, one to each WAP location. I know it will be more work but overall a less troublesome installation.

Make sure the cable is protected (like in a conduit, especially if underground) and is rated for outdoor usage. I have seen special Cat5 ethernet cable that has a thicker black poly sheath (to resist UV damage) and is jelly filled for moisture resistance.

You might also take a look at Wireless LAN range extenders. It's kinda like a wireless repeater that pushes the signal out further. Linksys has those too.

John

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You'd need to make sure that PSU is up to supplying sufficent current for both devices including the power lost in the cable. Also that the cable is capable of carrying the current.

N.B. you'd be better off measuring the current drawn than relying on the lables.

POE is carried on the blue and brown pairs, pins 4&5 and 7&8 of the RJ45.

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