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一电传打字电报机(简称电传机)由于具有能够直接印出文字、传递速度比较高、操作简单等优点,已经逐渐取代了莫尔斯电报机成为主要的电报通信机械.它所采用的电码是长度相等的均匀电码.目前国际上最通用的是五位电码,由五个脉冲信号组成.这里的脉冲信号只能是两个状态之一,或是传号或是空号,在凿孔纸条上表现为有孔或没有孔.由此五个信号可以构成2~5(=32)个不同的电码组合(以后称代码).为了在
A teletype telegraph (teletype machine) has gradually replaced the Morse Telegraph as the main telegraphic communication machine due to its advantages of being able to directly print out texts, transfer speed relatively high, and being easy to operate. The code is the same length of uniform code. Currently the most common international five-digit code, composed of five pulse signal. Here the pulse signal can only be one of two states, or the number or space sign, in the chisel Hole punched with or without holes, so the five signals can be composed of 2 ~ 5 (= 32) different code combinations (hereinafter referred to as code.) In order to