一.First of all, we need to understand that both single-mode fiber and multimode fiber are used for long-distance high-quality transmission of network signals. The reason why single-mode and multi-mode are distinguished is based on the way light propagates inside; light propagates along a straight line in a single-mode fiber without reflection, so its propagation distance is very long. The multimode fiber can carry the transmission of multiple optical signals.
二. Second, from the perspective of external light, the most conventional way to distinguish is; the yellow fiber optic cable is generally a single-mode fiber, and the orange or gray fiber optic cable is generally a multi-mode fiber. The difference between the two in the cable core is that the size of the multimode cable core is 50.0 μm and 62.5 μm; while the single mode is 9.0 μm.
三.Finally, the optical fibers in the two pictures we saw above all have LC interfaces, so in addition, optical fibers also have a very rich interface selection.
There are many FC interfaces used in the optical fiber distribution panel in the operator. And the ST interface commonly used by FTTB.
The most commonly used is the LC interface, which is much smaller than all other interfaces. More ports are accommodated in a fixed unit area of a fixed switch. The optical jumper with two LCs together is called DLC.
Another small interface like LC, but it is more used in fiber to the desktop - MTRJ, which puts the common dual fiber one in and one out in one port.
Precautions
The optical fiber interface selection needs to be selected according to the actual use environment.
Of course, the above products can be provided by HTF
