Is it possible using only Cisco equipment to link two sites approximately 15km apart using only one single mode fiber strand.


I don't think so. All of the single-strand fiber SFP's from Cisco that I know of are limited to 10km.


The older SFPs are limited to 10KM, however see the list below for longer distance.

  • 10KM Single Mode Fiber - GLC-LH-SMD
  • 40KM Single Mode Fiber - GLC-EX-SMD
  • 70 - 100KM Single Mode Fiber - GLC-ZX-SMD

Part details can be found here

  • These are single mode transceivers, but they are not single strand. – longneck Apr 30 '13 at 13:26
  • ahh missed the fine point, i take it back in that case. – Cold T Apr 30 '13 at 13:39

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