地下電纜 underground cable

通信衛(wèi)星 communication satellite

微波設(shè)備 microwave facilities

調(diào)制器與解調(diào)器 modulator and demodulator

緩沖器 buffer

定時(shí)信號(hào) timing signals

同步脈沖 synchronization pulses

時(shí)隙 time slot

移位寄存器 shift register

傳輸媒體 transmission medium

線形衰弱 linear attenuation

信息安全 information security

鍵盤 keyboard

數(shù)據(jù)終端 data terminals

某種類型的數(shù)據(jù)轉(zhuǎn)換設(shè)備 some type of data conversion equipment

視頻顯示終端 visual display terminal

全雙工的數(shù)據(jù)傳輸系統(tǒng) full-duplex data transmission system

由數(shù)據(jù)處理器的運(yùn)算速率所決定的速率 the rate determined by the operating speed of the data processor

由接口部件來的定時(shí)信號(hào) timing signals from the interface assembly

磁心存儲(chǔ)器 magnetic core memories

線性衰減和時(shí)延特性 linear attenuation and delay characteristics

傳輸損傷 transmission impairments

語音中的冗余特性 the redundant nature of speech

在數(shù)據(jù)發(fā)送器中的編碼過程 coding process in the data transmitter

二進(jìn)制的不歸零信號(hào) binary nonreturn-to-zero signal