发明名称 |
SO-INTERFACE FOR AN ISDN BASIC ACCESS |
摘要 |
The S0-interface for ISDN base access connects a four-wire line with a receiver line pair and a transmitter line pair to an ISDN terminal device, subject to potential separation within the interface. Each of the receiver lines has a respective capacitor for potential separation and the transmitter lines have a transformer. An inductance is connected into each receiver line and each transmitter line on the interface side. Preferably, the receiver line pair is connected to a voltage amplifier on the device side. The voltage amplifier has a voltage amplification in the same ratio as the voltage amplification of the transformer in the transmitter line pair. |
申请公布号 |
WO9841051(A3) |
申请公布日期 |
1998.12.23 |
申请号 |
WO1998DE00369 |
申请日期 |
1998.02.10 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT;HOEFER, GERALD;TOMALLA, ULRICH;KASSEL, PIDDER |
发明人 |
HOEFER, GERALD;TOMALLA, ULRICH;KASSEL, PIDDER |
分类号 |
H04M1/00;H04M1/253;H04M1/738;H04M11/00;H04Q11/04 |
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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