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rayonline

1734 posts

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#151767 4-Sep-2014 14:11

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I read about switches says 1000 speed but if it's sharing power on the same cable wouldn't it be 100 speed or are there something else about it?

Inphinity

2780 posts

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#1121866 4-Sep-2014 14:17

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POE can certainly work over gigabit ethernet, you simply have data & power sharing a pair.

sbiddle

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#1121975 4-Sep-2014 16:20

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rayonline: I read about switches says 1000 speed but if it's sharing power on the same cable wouldn't it be 100 speed or are there something else about it?

Depends if it's passive PoE or active PoE.

Active PoE will allow full Gigabit. Passive PoE can only do FE as 2 pairs are used for power.

dcole13

534 posts

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#1121982 4-Sep-2014 16:27

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How does that work? Does it use a low pass filter or something?

Home ADSL: School:

raytaylor

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#1123433 6-Sep-2014 23:50

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dcole13: How does that work? Does it use a low pass filter or something?

Yup - a little coil thingy that splits the power and data at each end

Ray Taylor

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