Cybervision CHM-4K series Ultra HD-SDI optical transceiver consists of optical transmitter CHM-4KT and Optical receiver CHM-4KR for transmitting 1 channels 4K ultra HD-SDI signal , or 4 channels 3G ultra HD video, and downward compatible with SD-SDI with bit rate of 143, 177, 270, 300, 1485Mbps etc. With circuit reducing the signal jitter at CHM-4KR, it can deal with the distorted signal well, it can provide more than 120m automatic balance for 3GMbps signal, more than 250m for 270Mbps signal. With built-in distribution amplifier, CHM-4KR provides 2 channels output. CHM-4K supports SMPTE178 standardpassed the test of SDI pathology. Features: 1. Supports SMPTE424M, SMPTE292M, SMPTE259M 2. Supports 3G-SDI/HD-SDI/SD-SDI/DVB-ASI 3. The best solution for live casting by connecting with 4 channels 3G-SDI 4. With cable equalize at the input/Output, it can make up the loss of cable transmission 5. With circuit reducing the signal jitter, it can deal with the distorted signal well. Input/output cable transmission distance can be up to 120m@3G (BELDEN8281 cable) 6. LCD at both transmitter and receiver show working status, it is convenience to operate and maintain: 1) Optical interface type; 2) laser working wavelength; 3) transmitting/receiving optical power; 4) working temperature; 5) input/output working status of each channel signal; 6) voltage of dual power supplies for main board; 7. With clear working status, there are LED indicators on panel for input SDI signal, optical signal, power supply. 8. Supports SMPTE178 standardpassed the test of SDI pathology 9. Dual power suppliers can be selected, which can supply power independently, backup redundantly 10. Network management can be selected, support SNMP and web monitoring