The A/D decoding circuit received simulation signal form measurement port and converted the signals into data signals which displayed by 7-segment, then signals were sent to data latch.
译码电路接收测量端模拟信号，转化为7段显示的数字信号，发送到数据锁存器上。
Testing data is received with data acquisition plug, signal from tested circuit board is transferred by circuit of switch relay.
前端采集插头接收测试数据，切换继电器电路传递被测电路板信号。
Testing data is received with data acquisition plug, signal from tested circuit board is transferred by circuit of switch relay.
前端采集插头接收测试数据，切换继电器电路传递被测电路板信号。
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