SDI, or Serial Digital Interface, is a standard for transmitting uncompressed digital video and audio signals. It is commonly used in professional video production and broadcasting. SDI signals are typically transmitted over coaxial cables, but they can also be transmitted over fiber optic cables.

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The speed of an SDI signal is determined by the number of bits per second (bps) that are transmitted. The most common SDI speeds are 270 Mbps, 1.5 Gbps, 3 Gbps, and 6 Gbps. The rate of an SDI signal is determined by the number of frames per second (fps) that are transmitted. The most common SDI rates are 24 fps, 25 fps, 30 fps, and 60 fps.

SDI signals can be difficult to transmit over long distances using copper cables. This is because copper cables are susceptible to signal loss and interference. SDI signals can be transmitted over much longer distances using fiber optic cables. This is because fiber optic cables are not susceptible to signal loss or interference.

There are a number of benefits to using SDI over fiber for long-distance transmission. These benefits include:

* Longer transmission distances

* Reduced signal loss

* Improved signal quality

* Increased reliability

If you are looking for a reliable way to transmit SDI signals over long distances, Thor SDI over fiber family products is the best option.

An Overview of SDI Video SFP Optical Module

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Video optical transceivers are primitively used in radio and television industry. It mainly includes two series: video SFP module or video SFP+ transceiver. Then today’s topic will be involved in types and applications of SDI video SFP optical transceiver in this post.

The Definition of SDI Video SFP

SDI SFP optical module and its related products are initially designed for the radio and television industry, applied for television studio, animal filming, film shooting, large sports events live. It is extended to the 1080 PHD monitoring field. SDI SFP optical module is usually used on the SDI interface of the HD-SDI terminal device. The transmission rate and frequency for each different SDI interface are different.

Types of SDI SFP Optical Transceiver

SDI Video SFP transceivers can be divided into various types according to different factors. For example, on the basis of operating wavelength, they can be divided into 1310nm, 1490nm, 1550nm and CWDM wavelengths video SFP transceivers; based on transmission distance, there are 300m, 2km, 10km, 20km, 40km; based on operating rate, there are usually 3G-SDI, 6G-SDI and 12G-SDI SFP optical module.

3G-SDI video SFP optical transceivers have a data rate up to 3Gbps, which are specifically designed for high performance in the presence of SDI pathological patterns for SMPTE 259M, SMPTE 344M, SMPTE 292M and SMPTE 424M serial rates. They are generally used for television broadcasting. However, as technology advances, they are now also widely applied in global security applications such as high-end surveillance or unmanned systems, allowing simple designs or upgrades with full HD cameras.

6G-SDI video SFP optical transceivers’ data rate is intended to be twice as fast as 3G-SDI optical modules, which means it is supposed to deliver a payload of 6Gbps. Therefore, they are not only designed for SDI pathological patterns for SMPTE 259M, SMPTE 344M, SMPTE 292M and SMPTE 424M serial rates but also for SMPTE 2081. 6G-SDI SFP optical module optical transceivers are often used in camera, video, security monitoring applications and 4K /HDTV/SDTV service interfaces.

Speed up to 12Gbps, 12G-SDI video SFP transceivers are specifically designed for high performance in the presence of SDI pathological patterns for SMPTE 259M, SMPTE 344M, SMPTE 292M, SMPTE 424M, ST2081 and ST-2082 serial rates. They are mainly used for SMPTE ST-297–2006, ST-2081 and ST-2082 compatible electrical-to-optical interfaces and UHDTV/HDTV/SDTV service interfaces.

Applications of SDI SFP Optical Transceiver

1. Applied in HD Camera or Monitor System

There are usually multiple HD end-devices in HD camera or monitor system. Therefore, one HD video matrix can be used as one end which provides multiple video SFP ports, and multiple HD-SDI equipments can be used as the other ends. 3G-SDI SFP transceiver is plugged into the equipment respectively, then SDI SFP transceivers on both ends are connected via fiber optic cables.

2. Applied for Broadcast Video Transmission

Broadcast video transmission needs high-density cabling. Thus, HD-SDI equipment with high-density video SFP ports is needed.

In Conclusion

Above all is about the introduction to types and applications of video SFP module, hoping this article can be helpful to those who want to know more about video SFP transceiver. In addition, for above-mentioned two series of video optical transceivers, Gigalight currently has these types: 3G-SDI SFP, 6G-SDI SFP+, 12G-SDI video SFP+. For more details, pls visit Gigalight official website.

About Gigalight:

Gigalight is a design innovator in global optical interconnect field. A series of optical interconnect products include: optical transceivers, passive optical components, active optical cables, GIGAC MTP/MPO cabling, cloud programmers & checkers, etc. Three applications are mainly covered: Data Center & Cloud Computing, MAN & Broadcast Video, and Mobile Network & 5G Optical Transmission. Gigalight takes advantage of its exclusive design to provide clients with one-stop optical network devices and cost-effective products.

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