At present, there are many foreign and domestic manufacturers of fiber optic transceivers in the market, and their product lines are also very rich. The types of fiber optic transceivers are also different, mainly divided into rack-mounted optical transceivers, desktop optical transceivers and card-type optical transceivers.
The optical fiber transceiver is an Ethernet transmission media conversion unit that exchanges short-distance twisted-pair electrical signals and long-distance optical signals. It is also called a photoelectric converter in many places and is used in optical communication equipment.
Wider than wider.Optical fiber transmission equipment such as telephone optical transceivers and optical fiber access equipment can achieve transmission between devices through optical transceivers. Generally, optical transceivers are divided into single-mode and multi-mode, single-fiber and dual-fiber. The default interface type is SC. FC, LC, etc. can also be configured according to customer needs. The transmission distance is generally 25 kilometers, 40 kilometers, 60 kilometers, and 80 kilometers. , 100 kilometers, 120 kilometers, etc.
Single-mode and multi-mode optical transceivers
Single-mode means that the optical signal propagates through a single channel, while dual-mode or multi-mode is roughly the same and propagates through dual-channel or multi-channel. When the user chooses whether to transmit via single-mode or multi-mode, the primary determining factor is the distance the user needs to transmit. Single-mode transmission has less attenuation, but the transmission speed is slower. It is suitable for long-distance transmission. Generally, the distance is greater than 5 miles. It is best to choose single-mode fiber. Multimode transmission has a larger attenuation, but the transmission speed is faster. For short-distance transmission, generally the distance is less than 5 miles, and multimode fiber is the best choice.
Single fiber and dual fiber optical transceiver
Single fiber refers to a single-core optical fiber that transmits on one core; dual fiber refers to a dual-core optical fiber that transmits on two cores, one receiving and one transmitting. In general, users often use dual-fiber, because dual-fiber is more advantageous in terms of price. Single fiber is generally used when the optical cable is relatively tight. For example, if the 12-core fiber is dual-core, only 6 networks can be transmitted; if the 12-core fiber is single-fiber, 50% of the wiring can be saved.
FC, SC, LC optical transceiver
FC, SC, and LC are a type of pigtail interface, and SC is the more commonly used pigtail interface. When purchasing an optical transceiver interface, pay attention to whether this interface matches the pigtail interface you provide. Of course, there are also many types of optical cables on the market, such as FC at one end and SC at the other end. SFP optical modules are used more frequently in LC.
The transmission distance of the optical transceiver depends on the user’s choice in the actual application, and the transmission distance between the two devices can be selected according to the corresponding optical transceiver.
Summary: When choosing an optical fiber transceiver, pay special attention to the application. If the wrong optical transceiver is selected, it may cause the office or remote telephone optical transceiver or other equipment to not work properly or the pigtail interface cannot be connected. The detailed problem can be Consult the manufacturer to ensure that you buy the right goods.