论文部分内容阅读
ＢＲＩ是最基本的用户/网络接口标准,一般包括一个Ｄ通道及两个Ｂ通道,称为２Ｂ＋Ｄ。两条Ｂ信道可独立传输用户信息,Ｄ信道则传输信号信息。
BRI is the most basic user / network interface standard and generally includes one D channel and two B channels, called 2B + D. Two B channels can transmit user information independently, D channel transmits signal information.