1.What is a fiber media converter？
The fiber media converter is an Ethernet transmission media conversion unit that can convert between electrical signals and optical signals. It is also called a photoelectric converter (Fiber Converter). In the past, copper wire cables were often used to transmit signals in network installations. With optical fibers, the transmission rate and distance can be greatly increased. Therefore, optical fibers are often used to extend the transmission distance in areas that cannot be covered by cables, which can save manpower and material resources. Economical solution. The fiber media converter plays an important role in this process. The fiber media converter can convert the electrical signal to be sent into an optical signal, and at the same time, it can convert the received optical signal into an electrical signal.
2. Application of fiber media converter in the network
The main function of the fiber media converter is to complete the data conversion between different media and realize the connection between two switches or computers within 0-120Km, but the actual application has more expansion.
(1) . Realize the interconnection between switches.
(2) . Realize the interconnection between the switch and the computer.
(3) . Realize the interconnection between computers.
Note: Generally, fiber media converter must be used in pairs, and different brands are usually compatible with each other, but different speeds and different wavelengths cannot communicate with each other.
(4) .Transmission relay: When the actual required transmission distance exceeds the standard transmission distance of the transceiver, if the site conditions permit, use two transceivers for back-to-back relay or optical-to-optical converters for relaying. The retransmission or forwarding of the signal to extend the transmission distance is an economical and efficient solution for long-distance transmission.
(5) .Single-multi-mode conversion: As we all know, the transmission distance of single-mode fiber is long, up to 2km to 120km, while the core of multi-mode fiber is relatively large, and the transmission distance can reach 500m. When we need to extend the transmission distance, we can use it Single multi-mode converters are connected to improve connectivity and effectively save equipment resources.
(6).Wavelength division multiplexing transmission: The use of fiber media converter and wavelength division multiplexers together, using wavelength division multiplexing technology to allow two or more wavelength information to be transmitted on the same pair of optical fibers, which can greatly improve the optical fiber Utilization rate and solve the problem of insufficient fiber resources. Wavelength division multiplexing (WDM) technology can multiplex multiple wavelengths on a single optical fiber to increase the capacity of the existing optical fiber infrastructure.
3.How to choose fiber media converters?
There are many types of fiber media converters, and different types of fiber media converters have corresponding functions. When we buy, we should pay attention to whether the fiber media converters we buy can meet our needs. Here are the following principles for purchasing. Points to note:
(1) .See if full-duplex and half-duplex are supported: If only full-duplex is supported, but half-duplex is not supported, and it is connected to a switch or hub of another brand using half-duplex mode, serious collision and loss will be caused. package.
(2) .Is it compatible: See if the product meets the IEEE802.3 standard. If it does not meet this standard, there will be compatibility issues. fiber media converters are generally used in pairs except for the pairing of fiber media converters and SFP, so When purchasing, pay attention to whether the two fiber media converters are compatible.
(3) .High temperature working capability: The fiber media converter is a device that needs long-term operation. It will generate high heat during use. Pay attention to whether the fiber media converters can operate normally at high temperatures and what is the maximum allowable operating temperature.
(4) .Product appearance: look at whether the product has abrasion and traces of use. The use of second-hand optical fiber products is prone to contamination of the optical path, reducing service life, and reducing transmission quality.
(5) .Is there a safety device to prevent packet loss: Check whether the fiber media converters uses a buffer circuit design. The buffer circuit can effectively and safely avoid data packet loss. Although the register data transmission mode is low in cost, it can lead to unstable data transmission and risk of packet loss.
