Gigabit dual-fiber optical transceiver (also known as photoelectric converter) is a fast Ethernet with a data transmission rate of 1Gbps. It still uses the access control mechanism of CSMA/CD and is compatible with existing Ethernet. With the support, the original Fast Ethernet can be smoothly upgraded and the original investment of the user can be fully protected. So, what are the adjustment measures for gigabit fiber optic transceivers? Let's take a closer look together!
Gigabit Dual Fiber Optical Transceiver
1. Measures to reduce the attenuation value
Attenuation is closely related to ACR, and a small attenuation will contribute to the improvement of ACR. The attenuation of the cable depends on the structure, length, ambient temperature and other factors of the cable. Measures to reduce attenuation include:
a) The total length of horizontal cables and work area cables shall not exceed 100 meters. According to the attenuation formula, the longer the cable, the greater the attenuation.
b) Avoid laying long-distance cables in metal conduits and near any other conductor surfaces as much as possible, resulting in an additional 2%/3% attenuation. In addition, high temperature will also seriously increase the attenuation.
2. Measures to reduce crosstalk
Among the characteristics of gigabit dual-fiber optical fiber transceivers in all wiring systems, crosstalk has the greatest impact on the performance of the network. It affects the following parameters: NEXT, Power sum, ACR, etc. Reducing the crosstalk value is beneficial to the improvement of the above parameters. Specific measures to reduce crosstalk include:
When making the wire pair connection, it should be connected according to the TIA-568B standard, otherwise the cross-winding connection will cause serious crosstalk. If NEXT fails the test, not only that, but a series of parameters related to NEXT, such as ACR, will also fail the test due to the twisting of the wire pairs, that is to say, the cable that is originally of qualified quality will have poor performance due to the twisting connection. .
b) When disconnecting the cable pair for connection or installing it on the patch panel, shorten the non-twisted pair part as much as possible, and the longest cannot exceed 13mm.
In addition, in addition to the above methods, when installing cables, care should be taken to handle the cables, and the cables should not be overstressed. The bending radius of the cables should meet the specifications of the cable manufacturer. Only in this way can the structure of the cables be maintained, thereby contributing to the above The improvement of technical indicators is also the basic requirement for construction.
Application Scenarios of Gigabit Dual Fiber Optical Transceivers
Through the introduction of ZR Fiber, I believe that everyone has some understanding of the measures to reduce the attenuation value and reduce the crosstalk of the gigabit dual-fiber optical fiber transceiver. If you want to know more about ZR optical fiber series products, welcome customers to come to consult.
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