发明名称 |
Aircraft cabin telephony test unit |
摘要 |
A test unit for an aircraft cabin telephony system includes a pair of connectors for inserting the test unit in-line within the system; an AC voltage module that is operative to indicate the presence of an AC voltage when the test unit is connected to the Cabin Delivery System connector of the cabin telephony system; a signal module that is operative to detect the presence of data signals when the test unit is connected to the Cabin Delivery System connector; a DC power module that is operative to indicate the presence of DC voltage when the test unit is connected to a seat telephony box within the cabin telephony system; and an AC current module that is operative to detect an over-current condition when the test unit is connected to the Cabin Delivery System connector of the cabin telephony system.
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申请公布号 |
US7136457(B1) |
申请公布日期 |
2006.11.14 |
申请号 |
US20000648947 |
申请日期 |
2000.08.25 |
申请人 |
CINGULAR WIRELESS II, LLC |
发明人 |
BLOOD ROBERT MICHAEL;CHARAMAND ABED |
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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