How can I make a simple cheap 3 port Switch? I have 30 10-base low speed Ethernet devices and I want to connect them together, how can these devices connects together with simple Bus topology? simplest and cheap way?
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1possible duplicate of [Building a passive ethernet hub with anti-parallel diodes](http://electronics.stackexchange.com/questions/10864/building-a-passive-ethernet-hub-with-anti-parallel-diodes) – pjc50 May 02 '14 at 05:25
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110x 3 port Or 1x 30 port? – Passerby May 02 '14 at 14:05
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30 Devices exists – Autumn May 04 '14 at 06:54
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The simplest and cheapest way is to go buy one. The off-the-shelf hardware is so inexpensive these days that there's really no way you're going to create a custom solution that saves either money or effort. Both Amazon and Newegg list several Ethernet switches for less than $20.

Chris Ryding
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