烽火 OL100C-02B-220单模光纤收发器/光电转换器
OL100C-02A，独立型光纤收发器,多模,10/100M,2km,SC/PC,220V
OL100C-02B，独立型光纤收发器,单模,10/100M,20km,SC/PC,220V
OL100C-02C，独立型光纤收发器,单模,10/100M,40km,SC/PC,220V
OL100C-02D，独立型光纤收发器,单模,10/100M,60km,SC/PC,220V
OL100C-02E，独立型光纤收发器,单模,10/100M,120km,SC/PC,220V