Sopto Learning Center is a great school for fiber optical products and telecommunication solutions

If you are interested in fiber optical products and the glossaries please feel free to drop in SOPTO Learning Center at any time. Following categories are for your reference: 
Fiber Optical Transceivers
Media Converters & Chassis
PDH Multiplexer & Chassis
Protocol Converter & TDMOIP
Digital Video Transmitter & Receiver
CATV Transmitter & Receiver
GEPON/GPON Solution
HBA Cards & PCI-E Cards
Fiber Optical Cable
Fiber Optical Patch Cords
Fiber Optical Adaptor
Fiber Optical Attenuator
Splitter & CWDM & DWDM
FTTH Box & ODF &Closure
Network Cable & Accessories
Tools & Testing Equipment