How to quickly and simply distinguish between single -mode and multi -mode fiber transceiver

The optical fiber transceiver is a medium that transmits short -distance electrical signals and long -distance optical signals. Since the short -distance electrical signal in some network environments cannot be covered, the optical fiber must be used to extend the transmission distance and upgrade the copper thread to upgrade the copper wire. The cost of optical fiber is too large, so the application of optical fiber transceivers is becoming more and more extensive.

The transceiver is divided into single -mode and multi -mode. The most fundamental difference is that the transmission distance is far away.

The working mode of a single -mode fiber transceiver is a single node and a port signal transmission, so the signal transmission distance is relatively long, forming the construction of cross -urban LAN;

The multi -mode fiber transceiver is just the opposite. Its working mode is multi -node and multi -port signal transmission, so the signal transmission distance is relatively short, but the price is low and easy to use. It is mostly used in the construction of the local area network.

Since the appearance of the fiber transceiver is similar, how can we distinguish between single -mode and multi -mode fiber transceivers? Let's learn together!

有 See if there are S and M in the model. S (Single) represents a single mode, M (Multimode) represents multi -mode.

， From the perspective of transmission, the receiving and sending data of the single -mode fiber transceiver is on the same fiber, and the multi -mode fiber transceiver is on the two fiber.

发 Unplug the optical port of the optical fiber transceiver to see the color of the interface device. Generally, the TX and RX interface of the single -mode transceiver are coated with white ceramics. The interface of the multi -mode transceiver is brown.

上 From the perspective of the transmission distance, the transmission range of the single -mode fiber transceiver is between 20 kilometers and 120 kilometers, while the multi -mode fiber transceiver is between 2 kilometers and 5 kilometers.

纤 If it is a fiber transceiver that has been used, it can be distinguished by the color of the fiber jump line. The yellow jump line generally represents a single mode, and the orange -red jump line generally represents multiple mode