Four precautions for the use of fiber optic transceivers

In network construction and application, since the maximum transmission distance of the network cable is generally 100 meters, it is necessary to use relay equipment such as optical fiber transceivers when deploying a long-distance transmission network. Optical fiber transceivers are generally used in practical network environments where Ethernet cables cannot cover and optical fibers must be used to extend the transmission distance. So, what should be paid attention to when using fiber optic transceivers?

1. The connection of optical fiber interface must pay attention to single-mode and multi-mode matching: single-mode transceivers can work under single-mode fiber and multi-mode fiber, but multi-mode fiber transceivers cannot work under single-mode fiber. The technician said that single-mode equipment can be used with multi-mode fiber when the optical fiber transmission distance is short, but the technician still recommends to replace it with the corresponding fiber transceiver as much as possible, so that the equipment can work more stably and reliably. Packet loss phenomenon.

2. Distinguish single-fiber and dual-fiber devices: the transmitter port (TX) of the transceiver at one end of the dual-fiber device is connected to the receiver port (RX) of the transceiver at the other end. Compared with dual-fiber devices, single-fiber devices can avoid the trouble of wrong insertion of the transmitter port (TX) and the receiver port (RX) during use. Because it is a single-fiber transceiver, only one optical port is TX and RX at the same time, and the optical fiber of the SC interface can be plugged in, which is easier to use. In addition, single-fiber equipment can save fiber usage and effectively reduce the overall cost of the monitoring solution.

3. Pay attention to the reliability and ambient temperature of the optical fiber transceiver equipment: the optical fiber transceiver itself will generate high heat when used, and the optical fiber transceiver will not work properly when the temperature is too high. Therefore, a wider operating temperature range can undoubtedly reduce the possibility of unexpected failures for equipment that needs to run for a long time, and the product reliability is higher. Most of the front-end cameras of the lightning protection performance monitoring system are installed in the outdoor open-air environment, and the risk of direct lightning damage to the equipment or cables is relatively high. In addition, it is also very sensitive to electromagnetic interference such as lightning overvoltage, power system operating overvoltage, electrostatic discharge, etc., which can easily cause equipment damage, and in severe cases can cause the entire monitoring system to be paralyzed.

4. Whether to support full-duplex and half-duplex: Some fiber optic transceivers on the market can only use full-duplex environment and cannot support half-duplex, such as connecting to other brands of switches or hubs, and it uses half-duplex mode , it will definitely cause serious conflicts and packet loss.

Post time: Aug-18-2022