Advantages of Optical Transceivers and Optical Port Switches

The network cable uses twisted pairs to transmit information by electrical signals, and the transmission distance is limited. The longer the distance, the greater the loss. The maximum transmission distance of the commonly used Category 5 and Category 6 network cables is less than 100 meters, but the optical fiber is different. The transmission distance is measured in kilometers. In high-rise residential areas, schools, commercial plazas and other places, only network cable wiring cannot be used, and fiber extension assistance is required. . At this point, we need an optical fiber transceiver, which can convert the optical signal transmitted by the optical fiber long-distance into the electrical signal required for the short-distance transmission of the network cable.

Therefore, optical fiber transceivers need to be used in these places to convert optical signals into electrical signals, and then connect routers, switches and other devices to connect to the network.

ZR Cable Optical Transceiver

Some friends will think that I can just use a switch with an optical port, why should I get another transceiver? After some investigation, it was found that it has the following advantages over switches:

1. Price advantage

First of all, fiber optic transceivers and switches are far cheaper than optical port switches. At the same time, some switches will lose one or even several electrical ports after adding optical modules, so more switches have to be purchased. Therefore, the selection of optical fiber transceivers can greatly reduce the operator's investment in the early stage.

2. Unified module standard

Since most of the optical modules of the switch do not have a unified standard, once the optical module is damaged, it needs to be replaced with the same module from the original manufacturer, which brings great trouble to the later maintenance. However, there is no problem in the interconnection between the equipment of different manufacturers of optical fiber transceivers, so once damaged, it can be replaced by products of other manufacturers, which is very easy to maintain.

3. Complete variety

Optical fiber transceivers have a more complete variety, especially in terms of transmission distance, with different distances such as 3km and 20km. In addition, it has the advantages of unified management and unified power supply.

On the surface, the optical fiber transceiver only completes the conversion of signals between different media (optical fibers, Ethernet cables), and realizes the connection of two switches or calculators within 120km. In fact, it also has the following functions:

(1) Realize the interconnection between switches.

(2) Realize the interconnection between the switch and the computer.

(3) Realize the interconnection between computers.

(4) Transmission relay: When the actual transmission distance exceeds the nominal transmission distance of the transceiver, especially when the actual transmission distance exceeds 120Km, if the site conditions permit, use 2 transceivers for back-to-back relay or use optical -Optical converter for relay, it is a very cost-effective solution.

(5) Single-multi-mode conversion: When a single-multi-mode fiber connection is required between networks, a single-multi-mode converter can be used for connection, which solves the problem of single-multi-mode fiber conversion.

(6) Wavelength division multiplexing transmission: When the long-distance optical cable resources are insufficient, in order to improve the utilization rate of the optical cable and reduce the cost, the transceiver and the wavelength division multiplexer can be used together, so that the two channels of information can be transmitted on the same pair of optical fibers.

The above is the introduction to the functions of optical fiber transceivers. What else do you want to know?