glc-lx-sm SFP transceiver 1550NM 70KM LC
GLC-SX-MM 850nm cisco,3com compatiable glc module
GLC-LX-SM 1310nm single mode LC sfp

glc-lx-sm SFP transceiver 1550NM 70KM LC

glc-lx-sm SFP transceiver

GLC-SX-MM 850nm cisco,3com compatiable glc module
GLC-LX-SM 1310nm single mode LC sfp sfp module
GLC-LX-ZX 1550nm 70km module

155M,1.25G,2.5G,4.25G SFP transceiver