... 19" 3RU rack Chinese 3G-SDI, HD-SDI, SD-SDI optical fiber transmission, 40km, 19" 3RU rack supplier Features3G-SDI/HD-SDI ... instructions of LED status, SD/HD indicator, CDR lock, optical link, power supplyEnclosure box material is made of aluminum, elegant ... video, or one DVB-ASI stream through one single mode fiber or multimode fiber with the standards of SMPTE424M, SMPTE259M, SMPTE297M, SMPTE310M, ...