40 lines
1.4 KiB
Markdown
40 lines
1.4 KiB
Markdown
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# get multiple lan connection througt one ethernet connetion
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# whats the point ?
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We need ethernet and POE througt one flat cable (ethernet is standard and cheep to buy)
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if we use ethernet it shuld be speck conform
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(at least a bit ... so it do not destroy too mutch :3 )
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# Idea:
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use old Poe 1 standard
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than you have 4 wires for POE
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in 2 pairs for vcc and grond.
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and the other 4 wires for ethernet right ?
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you cant divide them caus this cause trouble and would destroy firs funktionalety.
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the voltage of poe 1 is a range therefore poe 1 is compatible from 12 -48 v at least.
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we can modulate the voltage to on the poe wire to transfare data.
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turns out there is a standart to transfare ethernet over moulated DC current called FlowWire.
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you can use direct connection of 1:1 flowire or 1:9 on older standards
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your poe device shuld work with it.
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Becaus of several reasons.
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a all your poe devices use a dc dc-converter internaly to step -down your input from a specifiyd range to 3.3 or less voltage for internal logic.
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you can take out your flowire with the opponent device.
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the last question is dos the feald of the modulation destroy the other things in ethernet?
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I dont know.
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if this works we can bring at least 3 ethernet connections trough one wire with poe
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# Testing it:
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for me was it not possible cause my flowwire equiptment was broken and was not fixable for me.
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if someone had test it let me know :)
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