发明名称 |
Local area network cabling arrangement. |
摘要 |
<p>A cable (20) which is particularly suited to the transmission of substantially error-free data at relatively high rates over relatively long distances includes at least two pairs of individually insulated conductors (42-42). The pairs of individually insulated conductors are enclosed in a tubular member (51) comprising a plastic material. A metallic shield (54) may or may not enclose the tubular member, and in a preferred embodiment, a plastic jacket (58) is provided. The twist length of each pair of insulated conductors does not exceed a value equal to the product of about forty and the outer diameter of the plastic insulation. Further, the twist lengths among the conductor pairs are varied in accordance with a twist frequency scheme modulated by non-uniform increments of twist frequency.</p> |
申请公布号 |
EP0334575(A2) |
申请公布日期 |
1989.09.27 |
申请号 |
EP19890302722 |
申请日期 |
1989.03.20 |
申请人 |
AMERICAN TELEPHONE AND TELEGRAPH COMPANY |
发明人 |
FRIESEN, HAROLD WAYNE;NUTT, WENDELL GLENN |
分类号 |
H01B11/04;H01B11/02;H04L12/28 |
主分类号 |
H01B11/04 |
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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