HDMI optical transceiver, HDMI optical fiber extender, composed of transmitter and receiver, is the perfect solution for transmitting HDMI high-definition audio and video through optical fiber. It can transmit HDMI high-definition audio and video and infrared remote control functions through single-core single-mode or multi-mode optical fiber. end. In a wide range of applications, it is often necessary to send the HDMI signal source to a remote place for processing. The most prominent problems are: the signal received at a distance appears color cast and blurred, the signal produces ghosting, smearing and moire interference. The (multi-mode)/(single-mode) HDMI video optical transceiver transmitter and the corresponding optical transceiver series products are specially designed to solve this kind of engineering problems.
DMI optical transceiver supports: 1920×1080@60Hz DVI/HDMI high-definition audio and video real-time transmission, the maximum transmission distance can reach 2 kilometers. The product can be used in video conferences, multimedia information release, government departments, medical systems, commercial exhibitions, multimedia function halls, Public utilities and other fields.
HDMI optical transceiver features
1. Transmit 1 computer HDMI video signal on one-core or four-core optical fiber
2. 10-bit digital video encoding and uncompressed transmission technology
3. It is applied to the needs of long-distance transmission of computer video such as industrial monitoring and large conference venues
4. Strict material selection and quality control ensure high product quality and high reliability
5. Optional VGA/RGB, DVI interface, support high-fidelity stereo audio and RS232/485 data channel
6. The power supply and other parameter indicator LEDs can monitor the system status
7. Compact size
8. Excellent cost performance
9. SMT surface mount technology
10. At the same time, it can support 4U chassis, 1U chassis and independent structure
11. Low power consumption and plug-and-play debugging-free installation
12. Support high-definition resolution 1920×1080@60Hz.
13. The maximum optical fiber transmission distance is 20km
14. Single-core optical fiber transmission, no need to drive, compatible with any system, plug and play.
15. The device supports HDMI interface.
16. Remote infrared remote control function.
Product use topology diagram:
Failure and solution
1. No video signal
1 Check whether the power supply of each device is normal.
2 Check whether the video indicator of the corresponding channel at the receiving end is on,
A: If the indicator light is on (the light is on to prove that the channel has video signal output at this time). Then check whether the video cable between the receiving end and the terminal equipment such as the monitor or DVR is well connected, and whether the video interface connection is loose or there is false welding.
B: The video indicator on the receiving end is off. Check whether the video indicator of the corresponding channel on the front end is on. (It is recommended to power up the optical receiver again to ensure the synchronization of the video signal)
a: The light is on (the light on indicates that the video signal collected by the camera has been sent to the front end of the optical transceiver), check whether the optical cable is connected, and whether the optical interface of the optical transceiver and the optical cable terminal box is loose. It is recommended to plug and unplug the fiber interface again (if the pigtail is too dirty, it is recommended to clean it with cotton alcohol and wait for it to dry before plugging in).
b: The light is off, check whether the camera is working normally, and whether the video cable from the camera to the front-end transmitter is connected reliably. Whether the video interface is loose or has false welding, etc.
If the above methods cannot eliminate the fault and there are equipment of the same model, you can use the replacement inspection method (the equipment is required to be interchangeable), that is, connect the optical fiber to the receiver working normally at the other end or replace the remote transmitter to accurately determine Faulty equipment.
2. Picture interference
This situation is mostly caused by excessive attenuation of the optical fiber link or excessively long front-end video cable caused by AC electromagnetic interference.
1. Check whether the pigtail is excessively bent (especially in the case of multi-mode transmission, try to unfold the pigtail and avoid excessive bending).
2. Check whether the connection between the optical port and the flange of the terminal box is reliably connected and whether the flange magnetic core is damaged or not.
3. Whether the optical port and pigtail are too dirty, clean them with alcohol and cotton and wait for them to dry before inserting them.
4. When laying the line, try to use the 75-5 cable with good shielding and better transmission quality for the video transmission cable, and avoid AC lines and other objects that easily cause electromagnetic interference.
No control signal or abnormal control signal
Check whether the data signal indicator of the optical transceiver is correct.
a: Check whether the data cable is correctly connected and firm and reliable according to the data port definition in the product manual. Especially if the positive and negative poles of the control line are connected reversely.
b: Check whether the control data signal format sent by the control device (computer, keyboard or DVR, etc.) is consistent with the data format supported by the optical transceiver, and whether the baud rate exceeds the range supported by the optical transceiver (0-100Kbps).
c: Check whether the data cable is correctly connected and firm and reliable according to the data port definition in the product manual. Especially if the positive and negative poles of the control line are connected reversely.