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 |
US2008013695(A1) |
申请公布日期 |
2008.01.17 |
申请号 |
US20070779077 |
申请日期 |
2007.07.17 |
申请人 |
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发明人 |
TENNYSON GARY;BROCKMAN ERIC O. |
分类号 |
H04M1/24 |
主分类号 |
H04M1/24 |
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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