Times change, rapid development of information technology, fiber applications has become an inevitable trend in the construction and development of the network. While the optical transceiver in the network construction can be realized conversion optical and electrical signals, the real non-blocking switching transmission performance, but also provides a balance traffic, isolation and conflict detection error functions, and to ensure high security during data transmission stability. Then easy to herein is to introduce daylight communication application classification and fiber optic transceiver.
A fiber optic transceivers:
Fiber optic transceivers generally divided into two types, one is a twisted pair electrical short distance and long-distance optical signal transmission medium for exchange of Ethernet conversion unit, commonly referred to as photoelectric conversion.
The other is an optical signal into an electric signal, and then converted to another optical signals, also called optical repeater converter. Application of products are generally not covered in an Ethernet cable, an optical fiber must be used to extend the transmission distance of the real network, and the application layer is typically positioned within the access broadband MAN.
Second, the transceiver typically have the following basic features:
① provide ultra-low delay data transmission.
② completely transparent to the network protocol.
③ dedicated ASIC chip wire-speed forwarding data. The number of functions programmable ASIC concentrated on a chip with a simple design, high reliability, low power consumption, etc., the device can obtain a higher performance and lower cost.
④ rack type apparatus may provide a hot-swappable functionality, ease of maintenance and upgrades without interruption.
⑤ Managed devices can provide the network diagnosis, upgrade, status reports, exception reporting and control functions, can provide complete operation log and alarm log.
⑥ equipment to use 1 + 1 power supply design, support wide power supply voltage, and to achieve automatic power protection switching.
⑦ support wide operating temperature range.
⑧ Support transmission distance range (0 to 120 km).
Third, the fiber optic transceivers Category:
Fiber can be divided into a rate transceivers:
Fiber optic transceivers by nature can be divided into:
① multimode fiber transceiver, the typical distance between 300m to 2 km;
② single-mode fiber transceivers, coverage may be from 10 km to 120 km.
Fiber optic transceivers according to the number of fibers can be divided into:
① dual fiber optic transceivers, each of the data transmission and reception requires an optical fiber;
② single fiber optical transceiver, data in a fiber optic transmission and receiving.
Fiber optic transceivers according to the power source may be divided into:
① built-in power
② External power supply
Optical transceiver can be divided according to the structure:
BY MANAGEMENT TYPE:
① managed Ethernet fiber optic transceivers to support carrier-grade network management;
② unmanaged Ethernet optical transceiver, DIP switch to set the working mode of electrical hardware port, plug and play.
According to work points:
① full duplex sending and receiving means when the data split, when the two are transmitted by different transmission lines, a communication to both parties at the same time transmitting and receiving operation;
② is the use of half-duplex mode with a transmission line for transmitting and receiving as both, although the data may be transmitted in both directions, but not both simultaneously send and receive data communications.
Fourth, the fiber optic transceiver applications:
① achieve the interconnection between switches.
② achieve the interconnection between the switch and the computer.
③ achieve the interconnection between computers.
④ transmission repeater: when the actual transmission distance exceeds the nominal transmission distance of the transceiver, in particular the actual transmission time over the distance of 120Km, in the case where field conditions permit, the use of two relay transceiver back to back or by light - Light converter relay, is a very cost-effective solution.
⑤ single multi-mode converters: when there is inter-network connection requires a single multimode fiber may be connected to a single-multi-mode converters, solves the problem of converting a single multimode fiber.
⑥ wavelength division multiplexing transmission: when there is insufficient long-distance cable resources, in order to improve the utilization of fiber optic cable, reduce cost, and the transceiver can be used in conjunction with wavelength division multiplexer, allowing two-way information transmission on the same fiber pair.
The above-mentioned product easy communication daylight Available in ETU-LINK, plug and play, flexible, very suitable for applications to extend the transmission distance using an optical fiber. Fiber optic transceivers appears perfectly seamless connection of fiber and copper, and copper used in an Ethernet network can not be covered, must be used to extend the fiber optic network applications the transmission distance while helping the connecting line to the last one kilometer fiber City It played a huge role in the outer area network and more networks.