A functional unit that modulates and demodulates signals. One of the functions of a modem is to enable digital data to be transmitted over analog transmission 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。
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。
Moreover, the PCM-3813I breaks the traditional limitations of analog input data transmission 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。
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