A disadvantage of the cascade configuration is that the signal may pass through more than one switch contact to the device under test, causing higher losses in the signal.

级联配置的一个缺点是信号要经过多个开关触点才能到达被测装置，会造成信号的损耗更高。

youdao

Testing system, in which DSP is the part of core and CPLD is as peripheral circuit, controls operation parts, and test or incept the digital signal, analog signals and switch signals from exterior.

测试系统中采用了以数字信号处理器为核心，以复杂可编程逻辑器件为外围电路，来控制执行部件和测试与接收由外部返回的数字信号、模拟信号和开关信号。

youdao

A receptacle for each signal is mounted at the test fixture, and the cables are used to connect them to the switch CARDS.

在测试夹具上为每个信号安装一个插座，用电缆将其连接到开关卡。

youdao