摘要
利用多信道共用原理 ,研制了电话线路扩容器 ;设计了交换机侧扩容器和用户侧扩容器的硬件和软件 ;对多信道共用的电话线路配置理论进行了研究 。
The telephone line expanding devices which are based on the principle of the multi channels share are discussed in the paper.The devices include the switch side one and the user side one.The hardware and software of the devices are designed.The theory of the configuration of shared telephone lines is researched and the call loss of the users is analyzed after inner talk function is enhanced.
出处
《天津工业大学学报》
CAS
2002年第1期1-5,共5页
Journal of Tiangong University
关键词
电话线路
扩容器
调制解调器
单片机
呼损
telephone line
expanding device
modem
single chip microcomputer
call loss
