Real time transmission of video, audio and data based on E1 channel
E1 / 2m video codec is a special communication equipment for real-time transmission of video, audio and data based on E1 channel.
E1 / 2m video codec has 1 channel of forward video, 1 channel of forward audio input and 1 channel of data interface.
After the video signal enters the video interface, the machine selects one channel for compression coding according to the H.264 algorithm, mixes it with the compressed audio signal, and then sends it to the E1 line for transmission.
The uplink audio coding standard is ISO 11172-3 (MPEG audio compression standard), stereo coding, and the input impedance is 600 Ω. The downlink audio coding standard is G.711, the frequency response is 300hz-3400hz, and the output impedance is 600 Ω / 5K Ω. The connector is RCA
The machine is equipped with a fully transparent serial communication port