QSFP to SFP+ Cable would need to be purchased

 The amount of attenuation depends on the copper wire, and signal speed and cable lengths. For example, RG-174 coaxial cable attenuation amount for of 1.3dB / meters _AT_ 1.5GHz. Therefore, the 10-meter cable will produce 13dB attenuation. Through 10 meters of RG178 cable 400mV differential signal sent in the 1.5MHz frequency, the output is 90mV.QSFP to SFP+ Cable LVDS, CML and LVPECL devices are difficult to decode the signal below 100mV. 10 meters of RG-174 cable, for example, the distal end of the signal would be difficult to decode (even if possible). When through an increase in the frequency of the signal of the cable, the permissible length of the cable come to shorten. Accordingly, as the signal frequency increases, the differential signal before transmitted 400m quickly dropped to below 100mV.QSFP to SFP+ Cable The limiting postamplifier predictably re-zoom to the appropriate CML or LVPECL level of the input signal, even if the input level is only 5mV. The drawback is postamplifier use to signal detection (SD) or loss of signal (LOS) pin.