| 数字通信电缆回波损耗与结构回波损耗的辨析 |
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| 引用本文： | 丁薇霞,孟庆林.数字通信电缆回波损耗与结构回波损耗的辨析[J].电线电缆,2004(3):39-41. |
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| 作者姓名： | 丁薇霞 孟庆林 |
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| 作者单位： | 上海电缆研究所,上海,200093;上海电缆研究所,上海,200093 |
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| 摘 要： | 本文以数字对称通信电缆回波损耗 (RL)和结构回波损耗 (SRL)的定义及测试方法为切入点 ,阐明了RL 和 SRL 的物理意义以及两者之间的异同 ,指出了各自适用的条件和场合 ,澄清了两者之间的关系 ,最终给出了适用于各种不同类别数字对称通信电缆的回波损耗指标。
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| 关 键 词： | 数字对称通信电缆 回波损耗 结构回波损耗 特性阻抗 |
| 文章编号： | 1672-6901(2004)03-0039-03 |
| 修稿时间： | 2004年1月10日 |
Identification of the return loss and structural return loss of telecom cables |
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| DING Wei-xia et al.Identification of the return loss and structural return loss of telecom cables[J].Wire & Cable,2004(3):39-41. |
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| Authors: | DING Wei-xia |
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| Abstract: | This paper presents the physical significance of the return loss (RL) and strutural ruturn loss (SRL) and the similarities and diferences between them beginning from the definition and measurement of the RL and SRL of digital balanced telecom cables. It indicates the conditions and occasions where the two parameters apply and clarifies the relations between them. Finally, the paper gives the SRL requirements for different types of digital balanced telecom cables. |
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| Keywords: | digital balanced telecom cable return loss structural return loss characteristic impedance |
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