Coexistence of SDI optical transceivers and IP network optical transceivers

In the long-distance optical fiber transmission, the optical fiber cable has little influence on the signal transmission. The transmission quality of the optical fiber transmission system mainly depends on the quality of the optical transceiver. Because the optical transceiver is responsible for the photoelectric conversion and the optical transmission and the optical reception, its advantages and disadvantages directly affect the entire system. Many new users or interested users need to understand the performance and application of optical transceivers to better configure and purchase. With the realization of industrial application segmentation, SDI optical transceivers and IP network optical transceivers coexist, and the optical transceiver market has become increasingly obvious.

Coexistence of SDI optical transceivers and IP network optical transceivers

After large-scale HD-SDI appear at the end of 2011, IP networks and HD-SDI Optical Optical there is a "both Sheng Yu Sheng-liang" market complex applications in the security industry, for the two sides on the advantages and disadvantages in practical applications often by the media and Manufacturers zoom in and discuss, Guangzhou Tian Wei also has its own unique insights. But in fact, from a pragmatic point of view of engineering IP and HD-SDI and analog lines are designed to improve high recognition rate and image clarity monitor the emergence of products for the same purpose, applications are consistent, should be able to coexist is mixed The king of HD monitoring applications. First of all, we look at high-definition and high-resolution front-end; regardless of IP or SDI HD, its appeal can be seen clearly and widely, and it also requires the ball to be real-time and smooth. There is no need to discard any image that may provide high-definition in the application. Opportunity, but how do you coexist with these different HD cameras at the front end?

To co-exist we must first consider the use of architectural issues in both located in the use of transmission, if the original system is a coaxial transmission system, then we can be divided into two kinds of ways to solve the coexistence of the three Optical engineering. The first in the traditional coaxial cable infrastructure, we can install SLOC (SignalLinkOverCoaxial) transmitting and receiving unit in the back-end Optical IP network, using the principle of transmission and conversion mechanism, so that IP HD Optical able to use both the original system coaxial cable, but it can also be provided on the transmission device while SLOC TCP / IP signal and the output video signal video, TCP / IP network transmission device receives signals entering SLOC then reduced to network signal routing architecture may enter the network, and video image video signal can be entered on both analog video matrix or HD-SDI Optical or digital recording organic DVR, this first part addresses the barriers Optical IP network in traditional coaxial cable transmission, also contributed to solve not deprecated Simulation system mainframe or cable can not be exchanged for the dilemma.

HD-SDI application trends affect digital optical mainstream technology

Technically, SD-SDI, HD-SDI, 3G-SDI is a mature technology can be applied in the field of security, but the security SDI technology introduction purpose is to render HD without delay, so the HD-SDI, 3G -SDI technology is more welcomed by the security industry; but the 3G-SDI transmission frequency technology is 2.97GHz, in other words, using the 3G-SDI video transmitted bit rate in real-time to reach 2.97Gbps, while the resulting image resolution HD-SDI is the same, both 1080P. If we measure both technologies and weigh the current transmission technology, using HD-SDI is more suitable for today's security applications.

The most important factor in this consideration is the maturity and cost of the transmission equipment. From the network bandwidth, the transmission rate is twice 1.485Gbps 2.97Gbps, so that the light emitting module transmission requirements are higher, although only 2 times the value of the gap, but the process, the gap is much larger than twice the cost, . Therefore, in consideration of various aspects, in order to successfully complete the transmission application, HD-SDI meets the needs of the security industry regardless of the definition, production technology requirements, or the development of optical transmission equipment.

About Optical Transceiver

Optical transceivers are terminal devices for transmitting optical signals. Due to the improvement of current technology, the reduction of the price of optical fiber has made it well applied in various fields. Therefore, the manufacturers of optical transceivers are like springing up. However, most of the manufacturers here are not fully mature technology, the development of new technologies requires cost and manpower, material resources, etc. This produces many manufacturers are small and medium enterprises, the brands have also emerged. However, the quality is still similar, foreign optical transceivers are good but expensive, so the domestic manufacturers to transform the production of optical transceivers out of the way to meet domestic needs.