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                                                                                                                                                                                                              文章詳情

                                                                                                                                                                                                              dsx-5000線纜測試中的苦惱---某廠商案例分析

                                                                                                                                                                                                              日期:2022-05-23 10:25
                                                                                                                                                                                                              瀏覽次數:168
                                                                                                                                                                                                              摘要:于2月份某一日,攜帶2套DTX-1800作為驗證工具和A廠的DSX-5000做對比驗證。
                                                                                                                                                                                                              某日,Johnny接到東莞厚街一線纜廠技術人員的電話,他有個技術疑問一直沒有得到很好的解決。事情原委是這樣:他們制造出來的跳線,全檢出庫,但是到了客戶那里測試,總歸有些跳線NG,被打了回來,需要我們帶上設備去其現場找出原因。這在跳線代工廠或者oem中經常發生的雖然是個例,但同時在線纜廠之間經常發生的事情。往往找不到真正的原因,而導致大家互相扯皮,以至于大家鬧的你死我活,及其不愉快。

                                                                                                                                                                                                              在這里,向大家申明一下,暫且把厚街線纜廠簡稱為A廠,其客戶為B廠。

                                                                                                                                                                                                              A廠使用的測試儀為DSX-5000,其PATCHCORD模塊為DSX-PC6S;B廠使用的測試儀為福祿克DTX-1800,PATCHCORD模塊為DTX-PC6S.

                                                                                                                                                                                                              于2月份某一日,攜帶2套DTX-1800作為驗證工具和A廠的DSX-5000做對比驗證。首先我們要知道,DSX和DTX分屬2個不同的測試平臺,其測試原理不完全相同。DSX-5000是雙向測試,而DTX-1800是單項測試.報過其測試精度也不同。

                                                                                                                                                                                                              從以上表格中可以看出其具體的規格性能。

                                                                                                                                                                                                              接上面的話題繼續談下去,前提是同1條跳線,2個思路:

                                                                                                                                                                                                              1,PATCHCORD模塊一次;

                                                                                                                                                                                                              2,CHANNEL模塊一次;

                                                                                                                                                                                                              分別進行測試對比,看下兩則的差異性到底有多大?
                                                                                                                                                                                                              驗證結果為:他們自有的DSX-5000配套的跳線適配器測試不準確了,測試值偏高。使用通道標準來測試的話,3套機器測試值幾乎完全一樣,相差不到1個DB.

                                                                                                                                                                                                              話說這個案例告訴我們:

                                                                                                                                                                                                              1,機器到過了校準時間,一定要再次校準,不論DSX-5000還是DTX-1800;

                                                                                                                                                                                                              2,PATCHCORD測試模塊中,損耗件JCAK插座,一定要定期更換(看你使用的頻率);

                                                                                                                                                                                                              如何判定是否應該更換JACK?可以做一條樣品線,把其測試結果保留起來,假如模塊的測試偏差了2db或者更多,此時就應該及時更換。
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