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Unread 07-02-2017, 17:15
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Re: pic: Power Over Ethernet for 2017

Quote:
Originally Posted by jnicho15 View Post
How do you comply with wire gauge restrictions when doing this? Most ethernet cables are 23-26 ga. (usually 24) but 22 ga. is required in the manual for 12v 2a.

https://en.wikipedia.org/wiki/American_wire_gauge
22awg =0.326 mm^2

The passive power injectors use pairs of conductors for sending power and ground (a total of four conductors used).
24awg = 0.205 mm^2
So you effectively you have 0.410 mm^2 cross sectional area of copper which exceeds the 22awg requirement.

At least that's how I was planning on explaining it away if the question came up.
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Last edited by otherguy : 07-02-2017 at 17:20.
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