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Video SFP Optical Module Wiki
Knowledge Base + 2024.01.16

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  • 12G SDI Video SFP Optical Transceiver

  • 6G SDI Video SFP Optical Transceiver

  • 3G SDI Video SFP Optical Transceiver

  • HD SDI Video SFP Optical Transceiver

  • SDI Video SFP Optical Transceiver

SDI optical modules are categorized by rate

  • 3G-SDI Optical Module (for 1 channel pure video HD SDI Optical Transceiver)

  • 1.5G-SDI optical module (for 1080I and 720P format SDI fiber transmission)

According to the package can be divided into

  • Single-emitter single-receiver 3G-SDI optical module (for 2.97G rate 1080P format HD SDI fiber optic transmission)

  • Dual-emitter dual-receiver 3G-SDI optical module (for 2-way pure video HD SDI optical transmitter)

  • 1.5G or 3G with 155M asymmetric rate 3G-SDI optical module (for HD SDI optical transmitter with reverse control data)

SDI optical module dedicated to high-definition SDI optical transceiver, the SDI optical module is the first domestic development, with independent intellectual property rights of high-definition SDI optical transceiver dedicated SDI optical module, SD/HD/3G SDI optical transceiver products were firstly developed and used by the customers in the broadcasting industry, and applied in the TV studio, animal shooting, movie shooting, Universiade live broadcasting site, and then extended to the 1080P high-definition Monitoring field, can be with reverse control data; rate is 1.485G (also known as 1.5G, corresponding to the SMPTE-292M standard, support 720P) and 2.97G (also known as 3G, corresponding to the SMPTE-424M standard, support for FULL HD Full HD 1080P).

Currently on the market to do a lot of SDI optical manufacturers, but the vast majority of products can not pass the SDI sick code test, the transmission of specification bit rate signals barely available, but the transmission of irregular bit rate signals when the problem is immediately reflected in the 1.5G rate (720P or 1080i applications) the probability of problems is lower, in the 3G rate (1080P applications) the probability of problems is high, mainly for HD video applications. The probability of problems is high, mainly manifested in the process of high-definition video transmission from time to time flashing screen, black screen, blue screen, can not guarantee that the screen continuous smooth playback, leading to these problems are mainly due to two reasons:

First, the use of high-definition SDI converter program is not mature or design flaws, this reason accounts for a small part;

Second, the cost factor, most of the SDI converter on the market using ordinary SFP optical modules, that is, 1.25G rate and 2.5G rate digital SFP optical modules to replace the SDI converter dedicated VIDIO SFP optical modules, so that it is inevitable that the transmission of the code rate of irregularities in a large number of BER. The application field of HD SDI optical transmitter has higher picture quality requirements, naturally, it cannot tolerate the picture not smooth, so it should adopt 3G-SDI optical module dedicated for HD SDI optical transmitter, in order to ensure that there is no flickering screen, black screen, blue screen and other phenomena during the transmission of high-definition images.

Compatible with SMPTE 297-2006, supports SMPTE-424M 3Gbps HD-SDI, SMPTE-292M HD-SDI, SMPTE-259M.

1. SMPTE 297-2006 compatiblel

2. Robust Error free transmission of signals from 50Mbps to 3.0Gbps

3. Supports videol pathological patterns for3G/HD-SDI/SD-SDI

4. SFPl Package.Hot-pluggable

5. Metal enclosure for lower EMIl

6. +3.3V singlel power supply. 7.

7. Laser disable pin

8. Digital diagnostics and controll via I²C interface, including.

1)Monitoring laser bias current, averagel output power, supply voltage and temperature

2)Alarm reporting whenl transmitter is at fault

3)Module ID polling