It is 1 Giga bps Module. It is used at backbone switch.
It is called 1000base-LX and It can send some data more than 400Km.
It is useing for Metro-Ethernet. Today is using 10 Giga bps Module for Backbone network. Acutally, it is very fast speed.
You can send only 3 minutes a movie from Korea to America.
Metro-Ethernet technologies is very great. you can send all types data with only above module.


this module is used LASER Skill.
Some American scientist told me, ' we will develop a innovative technologies within 5 years.'
That's why America is still a powerful country. I love America's Science and Technology.

That looks like a fiber connection to me.... either LC or MTRJ, too fuzzy to tell!

These were explained at the Seoul Computer Club meeting last week! Next meeting is the second Saturday in August at 2 PM at the USO outside Gate 1 at Yongsan.

These modules are connected with an optical cable called SM(Single Mode).
You know, the optical cable was developed by an American scientist.
Also, the Computer and the Internet were developed by American scientists.
But the Linux system was not.
Do you know why your country is a powerful country ?
Because of your country's scientists.