数字通信接口：与远程信号器及控制面板配套。
Digital Communications Interface: Matched to capability of remote annunciator or annunciator and control panel.
在数字化的测试系统中，测试信息的传输已经转变为数字通信问题，所以为测试系统配备数字通信接口是其可以应用于现代测试系统中的必要条件。
In the digital test system, the transfer of test information or signal is something about digital communication, so we should prepare digital communication ports for modern test system.
在数字通信系统中，各种接口是最容易出现故障的电子元件，其中以同轴连接器尤为突出。
In digital communication systems, the contact fault of the electrical connector usually occurred, especially of the coaxial connector.
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