Test and use this product, should be the following circuit connection, will be on the circuit diagram of the three elements are mounted on LED lights on the plate.

测试与使用本产品时，需将以下电路连接，将电路图上的三个元件装于LED灯板上。

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On an outside phone company connection, the black and white pair may be used for low-voltage signals such as phone lights.

在外部电话公司联系，黑人和白人对可用于低压信号如电话灯。

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