发明名称 |
System and method for verifying central office wiring associated with line sharing |
摘要 |
A system and method for verifying the integrity of a DSL circuit on a shared telephone line. The invention uses the amplitude modulation principles to overcome the difficulty associated with a blocking capacitor that isolates a DSLAM on the DSL circuit from the rest of the shared telephone line. A transmitter of the invention mixes a high frequency carrier signal and a low frequency audio signal to produce an amplitude-modulated test signal. The amplitude modulated signal is supplied to the telephone line at a main distributing frame side of the blocking capacitor and is detected by a receiver at the DSLAM side of the blocking capacitor.
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申请公布号 |
US2005036586(A1) |
申请公布日期 |
2005.02.17 |
申请号 |
US20040945512 |
申请日期 |
2004.09.20 |
申请人 |
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发明人 |
TENNYSON GARY;BROCKMAN ERIC OTT |
分类号 |
H04M1/00;H04M1/24;H04M3/08;H04M3/22;H04M9/00;(IPC1-7):H04M1/24 |
主分类号 |
H04M1/00 |
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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