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156840.02 SignalTEK CT 68
中文
接线图测试屏
突出显示主屏幕上的接线图测试图标并按 Enter 按钮即可进入“接线图”屏幕
以查看关于接线图测试的更多详细信息。
摘要
显示测试状态或结果。本示例中,引脚 1 2 接,造成接线错误故障。
由于以太网可容忍此类故障,数据测试在这种情况下可通过。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
测试状态:
准备测试
正在测试
测试通过
测试失败
显示各线对长度(由于线缆结构
的原因,一些线对的长度可能大
于线缆总长)
数据线类型
显示在“设置”
中所选的线缆类型
远端设备引脚编号
测试设备引脚编号
F3(设置)调节测试设置。
F1(运行)
以运行接线图测试进行
障排除(不能保存结果
F2(故障)查看故障详细信息
串对(串绕)属于接线错误。各引脚均正确连接到线缆另一端的引脚,但是各引脚对连接的是来自不同相互扭绞
线对的线。串对(串绕)可能导致串扰和数据故障,但是简易型线缆测试仪不会将其报告为故障。SignalTEK CT
中的高级线缆测试功能可以检测出某些其他线缆测试仪检测不到的串对(串绕)问题。串对(串绕)可能仅仅是
由接线错误所致。以下示例中,引脚 3 4 在线缆一端反接:
5
4
3
6
5
4
3
6
5
4
3
6
5
4
3
6
5
4
3
6
5
4
3
6
如果在发生故障的线缆端修复错误,故障即可消除。
如果在无故障的线缆端进行修复,端到端的连通性会得到纠正,但是会出现串对(串绕):
显示线缆总长
这种线缆可能导致以太网数据错误,从而不能通 SignalTEK CT 数据测试。
69


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