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67 SignalTEK CT 156840.02
数据测试屏幕
突出显示主屏幕上的数据测试图标并按 Enter 按钮即可进入“数据”屏幕,
以查看关于数据测试的更多详细信息。
摘要
显示测试状态
持续时间
显示测试的持续时间。
按照 1Gb/s 的以太网标准,
数据测试必须持续 10
测试状态:
准备测试
正在测试
测试通过
测试失败
通知区域
显示测试状态的详细内
发送的帧
显示通过线缆发送的以太网帧数。
按照 1Gb/s 的以太网标准,
线缆必须正确发送和接
823,452 帧(含 10
10
比特)
接收到帧数
显示接收到的正确以太网帧数
帧错误
显示接收到的错误以太网帧数。如
果出现一个或更多错误帧,线缆即
不符合以太网标准
F2(故障)显示可能的故障原因
数据测试失败的可能原因包括:
线缆过长1Gb/s 的以太网标准允许的最大线缆长度为 100 米。长于 100 米的线缆可能仍然能够
常使用,但是性能不可靠。短于 100 米的线缆如果存在其他故障,
也可能出现数据错误并不能通过数据测试。如果未通过数据测试,请检查线缆的长度(显示在
主屏幕和接线图结果中)。如果线缆长度超过 100 米,建议更换稍短的线缆。
线对扭绞状态不佳。为确保最佳性能,各线对应始终保持扭绞,以免因出现串扰而影响线缆的数据
性能。线对扭绞状态不佳并不会导致接线图故障。如果数据测试失败,建议检查缆线端接。如果端
接不符合标准,请重新剪切端点。
线缆质量差。一些品牌的线缆数据性能差,容易导致数据错误,在线缆较长时更是如此。
对于长度约为 100 米的线缆,如果数据测试失败,但是接线图测试成功,建议检查其质量。
串对(串绕)。串对(串绕)可能引起数据错误或使线缆完全无法传输以太网流量。
无串对(串绕)的长线缆与有串对(串绕)的短线缆连接可能不会导致接线图故障,但是会导致数
据错误,从而使得数据测试失败。
即使接线图显示线缆端接正常,也可能出现数据错误。因此,为了确保数据线达到所有质量要求,我们需
要同时进行数据测试和接线图测试。
68


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