If you plan to connect to the switch fabric within the city perimeter of Nürnberg, this GBIC will enable you to span up 70km fibre distance (Singlemode only). The center-wavelength of the standard ZX-GBIC is 1550nm. There is also a tuned version for multiple connections over one fiber-pair, called CWDM-GBIC (Coarse Wave Division Multiplexed GBIC), which runs in 20nm spacing next to the center-wavelength. In conjunction with splitter-boxes it is theoretically possible to run between 8-32 gigabit-Ethernet connections over one fibre-pair. We can help to plan a network which maximises the usage of fibre infrastructure. Please do contact us for further discussions.
Remark: Since 05/2004 we have reduced the ZX-GBIC price