电线电缆网 > 产品认证 > ETL 網絡線認證時測試哪些項目?(完整版)
ETL 網絡線認證時測試哪些項目? - 无图版
lakehu --- 2008-04-21 14:08:02
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各位大蝦: 請問 ETL 網絡線認證時測試哪些項目?還有: 衰減值/100米,只測100米的嗎?還是20米衰減可過也可通過認證?
比如: FTP 28AWG ,FTP 26AWG 衰減當然和FTP 24AWG值不一樣.
lakehu --- 2008-08-12 16:12:12
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沒有一位高手出現解答啊
densen1 --- 2008-08-12 22:49:28
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ETL认证网络线是认证
Beltriem --- 2008-08-15 16:05:18
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It's according to what specification you request.
For example , if ANSI/TIA/EIA 568B.2 was specfiy to test Unshielded Category 5e erally, They will test DC Resistance , Mutual Capacitance Attenuation , NEXT , FEXT , Return Loss, Input Impedance .......
They will also test Attenuation Skew... @ 40 0C & @600C
[Beltriem 在 2008-8-15 16:07:02 编辑过]