Single-mode optical fiber transceiver: transmission distance 20 kilometers to 120 kilometers
Multimode optical fiber transceiver: transmission distance 2 kilometers to 5 kilometers
For example, the transmitting power of a 5-kilometer optical fiber transceiver is generally between -20 and -14dB, and the receiving sensitivity is -30db, using a wavelength of 1310nm; while the transmitting power of a 120-kilometer optical fiber transceiver is mostly between -5 and 0dB, and the receiving sensitivity is -30db. is -38dB, using a wavelength of 1550nm.
Single-fiber fiber optic transceiver: The received and sent data is transmitted on an optical fiber
Dual-fiber optical transceiver: the received and sent data is transmitted on a pair of optical fibers
As the name suggests, single-fiber equipment can save half of the optical fiber, that is, it can receive and send data on one optical fiber. It is very suitable for places where optical fiber resources are tight. This type of product uses wavelength division multiplexing technology, and the wavelengths used are mostly 1310nm and 1550nm. However, since there is no unified international standard for single-fiber transceiver products, products from different manufacturers may be incompatible when interconnected. In addition, due to the use of wavelength division multiplexing, single-fiber transceiver products generally suffer from large signal attenuation.
100M Ethernet fiber optic transceiver: working at the physical layer
10/100M adaptive Ethernet optical fiber transceiver: working at the data link layer
According to the working level/speed, it can be divided into single 10M and 100M optical fiber transceivers, 10/100M adaptive optical fiber transceivers, 1000M optical fiber transceivers and 10/100/1000 adaptive transceivers. Among them, single 10M and 100M transceiver products work at the physical layer, and the transceiver products working at this layer forward data bit by bit. This forwarding method has the advantages of fast forwarding speed, high transparency, and low delay. It is suitable for use on links with a fixed rate. At the same time, because this type of equipment does not have an auto-negotiation process before normal communication, it is compatible with Better performance and stability.