发明名称 |
Test unit for interface between telephone company demarcation point device and customer's telephone system |
摘要 |
A test unit for determining whether a local telephone company demarcation point device is providing telecommunication signals to one of a plurality of telephone lines of a telephone system includes: a demarcation point connector that is configured to interface with a connector of the demarcation point; a telephone system connector that is configured to interface with a connector of the telephone system; a plurality of switches, each of the switches being configured to selectively connect a connection site of the demarcation point device with a corresponding connection site of the telephone system, the selective connection providing a telephone line therebetween; and an indicator that signals whether a designated connection site of the demarcation point device is providing telecommunication signals to its respective telephone line.
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申请公布号 |
US2004258214(A1) |
申请公布日期 |
2004.12.23 |
申请号 |
US20030601794 |
申请日期 |
2003.06.23 |
申请人 |
URBAN BLAKE R.;FORSBERG KEVIN |
发明人 |
URBAN BLAKE R.;FORSBERG KEVIN |
分类号 |
H04M3/30;(IPC1-7):H04M1/24;H04M3/08 |
主分类号 |
H04M3/30 |
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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