1.High quality 3G-SDI, HD-SDI, SD-SDI optical extender 2.Mini /module/19" 3RU rack style 3.CE&RoHs approved 4.2 year warranty Features3G-SDI/HD-SDI/SD-SDI signal auto recognition, need not select by hand20km to 80km maxim transmission distance, can extender longer by deploy the EDFA optical amplifiers.CWDM technology to allow up to 16 channel of 3G-SDI/HD-SDI/SD-SDI transmit over 1 fiberRS485 ...