2007年起，局用交换机容量包含接入网设备容量。
Data on capacity of office switching machine include network Equipment since 2007.
本文介绍了正向设计的局用万门程控交换机专用集成电路CSC71018的可测性设计。
Design for testability of CSC71018, an application-specific IC for programmable switchboard with top-down design, is introduced in the paper.
本文介绍电话局自动电话交换设备与机关企业用自动化小交换机间全自动化接续的接口电路。
The automatic connection interface circuits between the PABX and the automatic switch equipments of telephone office are presented in this paper.
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