The difference between RJ45 (COPPER SFP) and SFP

2019-09-25
SFP optical module package because of the different ports, into RJ45 (COPPER SFP) and SFP. The optical port optical module is RJ45, and the optical port module is called SFP, which is a general SFP.The most common module involved in network communication is the SFP of the optical port, not the RJ45 (COPPER SFP).Because in a Gigabit Ethernet switch, the SFP port complies with the 1000BASE-T (IEEE 802.3ab) standard and the transmission rate can reach 1000 Mbps. When using the RJ45 port, the SFP optical module must be inserted in the switch first, and then the network cable (Category 5/Super 5/6 network cable) can be used for data transmission.

It can be seen that directly using the SFP port will make the transmission more convenient and save more conversion network cables and modules. When purchasing accessories, you can save a lot of unnecessary costs and save a lot of space.

In addition, the SFP connection requires two SFP electrical port optical modules and one Category 5 network cable, or two SFP optical port optical modules and one fiber patch cord. The RJ45 connection only needs to use a Category 5 network cable.The Cooper SFP must be worn with a network cable.The SFP is paired with fiber optics, and the accessories are different. In order to convert the RJ45 to the SFP port, the converter is required to assist.
Finally, in data center, local area network (LAN) and other applications, the switch's SFP port also has 100/1000Mbps adaptive function.

Based on the above, we found that the performance of the RJ45 port and the SFP port are basically the same, except that the transmission and conversion are different. From a cost perspective, the wiring cost of the SFP port is higher.However, the SFP port still exists, and its utilization rate in real life is particularly high. Because it can support not only SFP electrical port module and SFP optical port module, but also the transmission distance of SFP optical port optical module is farther than RJ45 port, it has higher flexibility in practical applications, so it can be expanded. Sex is also relatively high.

Fiberland Ltd. is currently selling copper SFP and SFP. Currently, the specifications of the cooper SFP are 10/100/1000M and 10G. For more information, please contact us.
RECENT BLOG POST
  • 01
    2019-10
    With the continuous development of 5G communication technology, 100G modules are gradually becoming popular. We know that there are many kinds of packages for 100G optical modules. From 2000 to now, the optical module package types have been rapidly developed. Its main package types are: GBIC, SFP, XENPAK, SNAP12, X2, XFP, SFP+, QSFP/QSFP+, CFP, CXP. In the fast-developing network era, some 100G optical modules avoid the risk of being eliminated, and upgraded and revised with the wave of the Internet, such as 100G CFP optical modules.
  • 01
    2019-10
    1. What is the CWDM SFP? The CWDM optical module is an optical module using CWDM technology to implement the connection between the existing network device and the CWDM multiplexer/demultiplexer. When used with a CWDM multiplexer/demultiplexer, CWDM optical modules can increase network capacity by transmitting multiple data channels with separate optical wavelengths (1270 nm to 1610 nm) on the same single fiber.
  • 01
    2019-10
    AOC is the abbreviation of Active Optical Cables, which is called Active Optical Cables in Chinese. AOC active optical is to encapsulate two optical modules and cable together. Because the medium of transmission in the middle is optical cable, AOC optical module, which contains laser devices, has a higher price for DAC. However, its optical aperture is not exposed, it has high reliability, and its working distance can be customized for a long distance of less than 100 meters.
  • 01
    2019-10
    Dense Wavelength Division Multiplexing (DWDM) technology is capable of transmitting data in an optical fiber using bit wavelength parallel transmission or string line transmission using the wavelength of the laser.It is widely used in different fields of communication networks, including long-distance backbone networks, metropolitan area networks (MANs), residential access networks, and local area networks (LANs).The DWDM optical module is the optical module that uses this technology, so the DWDM optical module has high bandwidth and long-distance transmission characteristics.