3G-SDI optical transceiver is suitable for the standard of high-definition reliability and high-definition performance in the TV industry. Hangzhou Fctel 3G-SDI optical transceiver adopts the latest technology, adopts H.264 encoding method, adopts high-definition SDI dedicated VIDIO SFP optical module, and generally adopts SDI interface. Its products were first developed and used by customers in the radio and television industry, and were used in TV studios and live broadcasts of the Universiade, and later extended to the field of 1080P high-definition monitoring, which can carry reverse control data; the rate is 1.485G (also called 1.5G, corresponding to the SMPTE-292M standard) , support 720P) and 2.97G (also known as 3G, corresponding to SMPTE-424M standard, support FULL HD full HD 1080P), to ensure that there is no flicker, black screen and other phenomena during high-definition image transmission. Next, we will introduce the difference between HD-SDI monitoring system and IP high-definition monitoring system in detail, let’s understand together!
The difference between HD-SDI monitoring system and IP high-definition monitoring system:
1.Stability: HD-SDI monitoring system has no compression, no delay, and no smear when transmitted through HD-SDI optical transceiver; IP high-definition monitoring system will have frame loss, frame skipping and other phenomena in transmission, and IP transmission will appear When the network is blocked, etc., there will be a blank during this period of time during storage, which is not conducive to subsequent tracking queries.
2.Image effect: The code stream of HD-SDI optical transceiver reaches 1.485G/s during the transmission process, while the IP high-definition monitoring system is compressed during the transmission process and can only reach 10M/s. It can also be seen from the analysis of the image code stream The image of HD-SDI monitoring system is clearer, and the same high-definition monitoring image, SDI high-definition image is smaller than the IP high-definition image code stream, and the image of the same code stream HD-SDI is clearer than IP.
3.Versatility: HD-SDI monitoring systems are all SDI interfaces, which are compatible with SDI devices of various manufacturers; while IP high-definition monitoring systems support ONVIF protocol, they are basically changed. Therefore, even if the standard NVRs and IPCs that support the ONVIF protocol may not be able to communicate normally.
4.Security: HD-SDI monitoring system is formed by optical fiber transmission network, which is not subject to external network intrusion; IP high-definition monitoring system is transmitted and accessed through external network, which is vulnerable to human intrusion and has low security.
5.Convenience of installation and maintenance: HD-SDI monitoring system only needs to replace the corresponding equipment on the analog line used; IP high-definition monitoring system and IP high-definition monitoring system need to be re-wired. ; The SDI monitoring system is easy to install and maintain, and the IP high-definition monitoring system requires specialized technicians to debug and maintain, and has higher requirements for maintenance operators.