david rogers posted 08 Mar 2001
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?
Roman Kitaev posted 09 Mar 2001
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.
Roman Kitaev, RCDD
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