The GBS-92120F-CXX0G series optical transceivers meet the Gigabit Interface Converter (GBIC) specification Rev. 5.5. It satisfies the optical interface specifications defined in IEEE 802.3z Drift 5.0 1000 BASE-SX for Gigabit Ethernet and 1x/2x Fiber Channel FC-PI13.0. This module is designed for single-mode fiber and operates at a nominal wavelength of CWDM. There are eighteen center wavelengths available