My TN Connection

More and more products are being released with single mode single fiber optics and can be perceived as being very expensive, but are they?

What is single mode single fiber?
The answer is that it is possible to transmit and receive using one strand of single mode fiber. This is achieved by using two different wavelengths - one end will transmit at 1550 and will receive at 1310 and vice versa for the other end. By using these wavelengths the signals will never collide.

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One of the major problems of the introduction of 1000Base (gig) was the distance limitation of 1000base over fiber optic cables. Most users were aware that 10Base and 100base could run over 2km of multimode fiber optic cable and up to 20Km of single mode fiber optic cable - though advancement in components now allows single optics can now achieve distances of 125Km plus. However, with the introduction and deployment of 1000Base networks over fiber optics users found that their fiber cables could not sustain that rate and were effectively useless. continue »