... 19" 3RU rack Chinese 3G-SDI, HD-SDI, SD-SDI optical fiber transmission, 40km, 19" 3RU rack supplier Features3G-SDI/HD-SDI ... of LED status, SD/HD indicator, CDR lock, optical link, power supplyEnclosure box material is made of aluminum, elegant appearance, light ... dual AC/DC power supply, particularly suitable for large volume optical transmission platform construction);2) Module style(1- channel);3) ...