Protection (LCD shows common protection) : in case of emergency, the host machine will alarm acoustically or silently and give a warning ring.

布防(液晶屏显示普通布防)：当有警情发生时，主机按原设定进行有声或无声报警并可拨打报警电话。

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Protection (LCD shows common protection) : in case of emergency, the host machine will alarm acoustically or silently and give a warning ring.

布防(液晶屏显示普通布防)：当有警情发生时，主机按原设定进行有声或无声报警并可拨打报警电话。

youdao