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 Subject :POE Standards for HSMM-MESH.. 2012-01-23- 02:33:23 
KV4I
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Joined: 2011-12-17- 08:30:12
Posts: 51
Location: New Smyrna Beach, FL

I'm preparing to add POE to my Mesh node so I looked at HSMM-MESH.org to learn what HSMM-MESH standards, if any, were in place for POE.


Please forgive me if this has already been covered. I could not find any information at HSMM-MESH.org regarding any POE standards. Are there any?


It seems to me that 802.3af mode B (using the spare wires for DC) might be appropriate since the WRT54Gx family seems to be limited to 100BaseT.


Thanks & 73,

Mark KV4I
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Last Edited On: 2012-01-23- 03:17:37 By KV4I for the Reason fix typo.
 Subject :Re:POE Standards for HSMM-MESH.. 2012-01-25- 18:39:46 
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POE is an IEEE standard. It is outlined in 802.3af-2003 and 802.3at-2009. Long story short it uses the 2 unused data pairs to transmit power using a single cable.
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 Subject :Re:POE Standards for HSMM-MESH.. 2012-01-26- 02:23:42 
KV4I
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Joined: 2011-12-17- 08:30:12
Posts: 51
Location: New Smyrna Beach, FL

Hi, inuyasha Yes, I understand that POE is described in 802.3af and from what I've read there are two modes, A and B. Mode A delivers power on the data pairs (Phantom power) and mode B delivers on the 2 unused pairs. I was wondering if there was an HSMM-MESH standard specifying either A or B. Thanks, Mark KV4I
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Last Edited On: 2012-01-26- 04:01:33 By KV4I for the Reason typo
 Subject :Re:POE Standards for HSMM-MESH.. 2012-01-26- 11:36:57 
Joined: 2024-12-22- 09:57:19
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I've never heard of it referenced as mode "A" or mode "B" but I would imagine that's limited to which mode your hardware supports. Most consumer hardware isn't compatible with POE but I simply sliced a power adapter onto the unused pairs in a cat5. Its not a "true to spec" POE implementation but it works, and all of my "tech savvy" friends know how to hook it up at first sight.
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 Subject :Re:POE Standards for HSMM-MESH.. 2012-01-26- 12:53:57 
KV4I
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Joined: 2011-12-17- 08:30:12
Posts: 51
Location: New Smyrna Beach, FL

802.3af Standards A and B are described at http://en.wikipedia.org/wiki/Power_over_Ethernet


73 Mark KV4I
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Last Edited On: 2012-01-26- 12:55:59 By KV4I for the Reason
 Subject :Re:POE Standards for HSMM-MESH.. 2012-01-26- 16:03:52 
Joined: 2024-12-22- 09:57:19
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5+ years of computer repair and networking and im still learning new things. Thanks.
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 Subject :Re:POE Standards for HSMM-MESH.. 2012-01-27- 12:59:03 
KV4I
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Joined: 2011-12-17- 08:30:12
Posts: 51
Location: New Smyrna Beach, FL
I earned my first MCSE in 1999 and I'm still learning new things. That's the nature (and for me, half the fun) of technology. There's always something new to learn.
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 Subject :Re:POE Standards for HSMM-MESH.. 2012-02-28- 16:48:48 
W5LMM
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Joined: 2012-02-13- 18:18:04
Posts: 126
Location: Albuquerque, NM
 
TIA568B is the common standard used everywhere. I have yet to see anyone using TIA 568A in 25 years of IT. So your blue and brown pairs.
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