This product is a pair of complete sets of equipment, one of which is a sender and one is a receiver; the sender is marked with the word "Sender" and the receiver is marked with the word "Receiver".HDMI video can be extended to the remote end through a single optical fiber, and can also transmit RS232 serial port signal at the same time, which is used for long-distance transmission with touch screen, cradle head, electronic whiteboard and other devices. IR signal can be used for infrared remote control of DVD, set-top box and other devices.
The longest transmission distance of direct connection is 125 meters, and the image effect is clear and natural after transmission, supporting resolution up to 4K× 2K.
Products can be used in security monitoring, multimedia information publishing, video conferencing, multimedia classrooms, centralized management of hosts, large-screen advertising, education systems, splicing systems, etc.
one to one connection diagram:

one to many connection diagram:
1. Digital video transmission with zero latency, clear image and strong anti-interference ability;
2. Support multiple resolutions up to 4K×2K@30HZ;
3. Support HDMI1.4, support 3D;
4. Support reading EDID, compatible with different brands of display devices and able to lock screen
5. Access to Gigabit switches for one-to-many transmission
6. Support bidirectional transmission of serial port;
7. Infrared, serial port (optional).