A functional unit that modulates and demodulates signals. One of the functions of a modem is to enable digital data to be transmitted over analogtransmission facilities.
一种对信号进行调制与解调的功能部件，调制解调器的功能之一就是使数字数据经由模拟传输设施进行传送。
2
At present, polarization mode dispersion (PMD) has become an important limiting factor for the performance of long distance transmission, high rate data and analog communication systems.
目前偏振模色散(PMD)已成为长距离传输、高速率数据和模拟系统的主要限制因素。
3
Moreover, the PCM-3813I breaks the traditional limitations of analog input datatransmission by providing significantly faster speeds than similar modules on the market.
另外，P CM - 3813 i比市场上的同类模块的速度要快得多，打破了模拟输入数据传输的传统局限性。