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ADSL设备接线端口一般分为PSTN侧和LINE侧,其中PSTN侧连接用户电缆,LINE侧连接程控交换机。( )
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发布时间: 2023-11-19 20:50
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ADSL设备接线端口一般分为PSTN侧和LINE侧,其中PSTN侧连接用户电缆,LINE侧连接程控交换机。( )
A.对
B.错
正确答案是B
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