FC-AL crossover?

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 Question by david rogers posted 08 Mar 2001
 FC-AL crossover?
Hi,

I'm trying to direct connect a Sun server with a fiber gigabit interface to a Network Appliance file server with the same type of gigabit interface. Do I need a crossover cable? I had heard that these gigabit cards send and receive on every wire.. is that true?

Thank you,

David Rogers
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 Answer by Roman Kitaev posted 09 Mar 2001
Hello, David!

If you connect two fiber gigabit interfaces (i think it's 1000Base-SX), you have to use fiber cross-over cord with the minimum length of 2 meters. The interface uses 2 fibers: one for transmit, other for receive.

It's the copper version of GbE that uses 4 pairs in 4-pair UTP cables, where each pair is used for transmit & receive.


Best regards
Roman Kitaev, RCDD

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