发明名称 |
Data port expander |
摘要 |
A device which attaches multiple workstations, printers, computers or the like to a single lobe of a communications network includes a multistation access unit (MAU) with multiple ports and a voltage generator unit which generates a phantom current to activate a remote switch which allows one or more ports on the MAU to transmit or receive information from the communications network.
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申请公布号 |
US5649111(A) |
申请公布日期 |
1997.07.15 |
申请号 |
US19950573902 |
申请日期 |
1995.12.18 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
REHQUATE, RUDOLF EUGENE;STAMMELY, THOMAS EDWARD;STOLTZ, JEFFREY MATTHEW |
分类号 |
H04L12/42;(IPC1-7):G06F3/00;H04J3/02 |
主分类号 |
H04L12/42 |
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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