The AV OVER IP project is becoming more and more popular in the audio and video industry, so do you know the transmission distance of various cables in its project?
Below, let us learn more about the cable types and transmission distances commonly used in AV OVER IP.
- Network Cable
Everyone is familiar with network cables, and there are different transmission distances according to different specifications of network cables. The network cable is transmitting network signals. If it exceeds the distance that the network cable itself can bear, the signal will be attenuated. In severe cases, the network signal will be interrupted.
CAT5 / CAT6 are both 100 meters, and the regular oxygen-free copper CAT6 can reach about 120 meters. If you want to increase the transmission distance, you can install a repeater between the two twisted pairs, and up to 4 repeaters can be installed. If 4 repeaters are installed to connect 5 network segments, the maximum transmission distance can reach 500m.
- Fiber
The transmission distance of the network cable is limited, and can not solve the long-distance data transmission, then the optical fiber can be used for the long-distance transmission.
Optical fiber is divided into multi-mode and single-mode. The transmission distance of multi-mode is longer than network cable, but shorter than single-mode. In 10Mbps and 100Mbps Ethernet, multi-mode fiber can support up to 2000 meters of transmission distance; in 1Gbps Gigabit network, multi-mode fiber can support up to 550 meters of transmission distance; so multi-mode is now used less Up. Compared with multi-mode fiber, single-mode fiber can support longer transmission distance. In 100Mbps Ethernet and 1G Gigabit network, single-mode fiber can support transmission distance of more than 5000m. The components used in single-mode optical modules are twice that of multi-mode optical modules, so the overall cost of single-mode optical modules is higher than that of multi-mode optical modules; the transmission distance of single-mode optical modules can reach 150 to 200 km. Therefore, optical fiber can be used for long-distance transmission, such as remote monitoring projects.
- HDMI Cable
HDMI high-definition multimedia interface is a very common video interface that supports simultaneous audio and video transmission. It is mostly used for Video Wall Controller to connect input and output sources. Usually HDMI signal transmission is less than 30 meters.
- DVI Cable
DVI is a digital video interface. A general DVI cable can only effectively transmit a signal about 5 meters, and signal attenuation will occur if it exceeds 5 meters. This shortcoming greatly limits the popularization and application of DVI equipment. DVI-D can only receive digital signals; DVI-I can receive both digital and analog signals at the same time, with a short transmission distance of 7-15M.
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