发明名称 |
Power supply procedure for digital subscriber line, involves operating telephone circuit by the power extractor from subscriber's line, during commercial power supply failure |
摘要 |
The failure detection signal is output during failure of commercial power supply of subscriber network side terminal (2). Electric power is supplied to subscriber's line (3), from station (1), on receiving failure detecting signal. Based on power from line (3), telephone circuit is operated. |
申请公布号 |
DE10041521(A1) |
申请公布日期 |
2001.03.29 |
申请号 |
DE2000141521 |
申请日期 |
2000.08.24 |
申请人 |
NEC CORP., TOKIO/TOKYO |
发明人 |
HIRAOKA, TOSHIHIDE |
分类号 |
H04L12/10;H04L12/70;H04M3/00;H04M11/06;H04M19/00;H04M19/08 |
主分类号 |
H04L12/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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