difference input meaning in English

差分输入

So , it will be more difficulty to implement design . with the atc and the apc in light emission modules , they enhance the stability of output light signal and reduce the influence of temperature changing and part aging . in our design , we have implemented tdm to eight parallel difference input signals , 8b / 10b encoding / decoding , high - speed transmission through a single fiber
在另一方面,光模块受环境温度变化的影响很大,给设计实现带来了难度,但是随着在光发射机中采用自动温度控制( atc )和自动功率控制( apc )等稳定电路,大大的提高了输出光信号的稳定性,减弱了其受温度变化和器件老化的影响。