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06 Aug 2015

In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths of laser light. This technique enables bidirectional communications over one strand of fiber, as well as multiplication of capacity. A WDM system uses a multiplexer at the transmitter to join various signals together, and a demultiplexer at the receiver to split them apart When dealing with optical communication system, there are two main types of WDM systems which are used to transmit the necessary data: CWDM and DWDM.

WDM operating principle

Coarse Wavelength Division Multiplexing (CWDM) is the technology of choice for cost efficiently short-haul...

30 Jul 2015

Spaghetti is one of the famous and delicious food in the world. However, when a bunch of noodles is in your server room but not your belly, it’s really a nightmare. What does it mean? Obviously, we do not discuss the art of eating spaghetti today. Actually, we are going to talk something about the server room cabling nightmare, also called server room cabling hell.


It’s pretty good that you don’t have to worry about your servers, because the server room monitor handles all the monitoring of your servers and public facing websites. Does it mean that everything will go well with the server room monitor? No, there is a weaknesses of server room monitor that it can’t help you wire your system. Many server...