The configuration of the port of maintenance of the SPC by composing DLU and DCA is the character of HARRIS 20-20 SPC.

  • 介绍H20-20程控数字交换机的以DLU与DCA的组合所实现的维护管理端口的配置。

  • 互联网摘选 2025-02-23 18:34:51

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