发明名称 |
TELECOMMUNICATION TERMINAL |
摘要 |
Telecommunication terminal with automatic switching from 4-wire to 2-wire operation. The terminal is provided with a voltage sensing circuit (5) sensing the way in which DC voltage is fed to the terminal, and in response thereto controlling switches (8, 11) which switch the terminal to prevailing operation conditions. |
申请公布号 |
WO8403015(A1) |
申请公布日期 |
1984.08.02 |
申请号 |
WO1984SE00008 |
申请日期 |
1984.01.13 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON |
发明人 |
ERIKSSON, ANDERS, ERIK |
分类号 |
H04L5/14;H04B1/58;H04B3/03;(IPC1-7):04B3/02 |
主分类号 |
H04L5/14 |
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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