替代电路 meaning in English
replacement circuit
Examples
- This can be seen in the enhancement of exchanging capacity , the replacement of 2mbits trunking interface by sdh stm - 1 or the integration of data processing module with the data voice gateway and the dial - in access server with the adsl module . it is also no surprise to see the co - existence of ps and cs modules or an all - round ps layout on the exchanging part
Pstn交换机发展的主要方向是：提高交换处理能力，直接提供sdhstm - 1接口来取代2mbits中继接口，集成数据业务处理模块及数据话音网关，集成拨号接入服务器及adsl模块，加入分组交换模块与电路交换共存或者用分组交换完全替代电路交换等。