布線工程項目結束後，都需要對整個連接線路進行測試。那麼，綜合布線系統中測試要求是什麼?
插入損耗：在傳輸系統的某處由於元件或器件的插入而發生的負載功率的損耗，插入損耗值越小越好。
近端串擾：當傳送與接收同時進行時所產生的干擾信號，近端串擾的測試值越大越好。
近端串音衰減功率和：每對線受到的單獨來自其它三對線的NEXT影響的基礎上通過公式計算出來的，同樣測試值越大越好。
衰減串擾比：來自遠端經過衰減的信號與串擾噪聲間的差值，測試其差值即ACR值越大越好。
回波損耗：電纜鏈路由於阻抗不匹配所產生的反射，不匹配主要發生在連接器的地方，也可能發生於電纜中特性阻抗發生變化的地方，所以施工質量是提高回波損耗的關鍵。回波損耗測試值越大越好。
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What are the test requirements in the integrated wiring system?
Insertion loss: The loss of load power that occurs somewhere in the transmission system due to the insertion of components or devices. The smaller the insertion loss value, the better.
Near-end crosstalk: When the transmission and reception are simultaneously performed, the larger the test value of the near-end crosstalk, the better.
Near-end crosstalk attenuation power sum: Calculated by the formula based on the NEXT effect of each pair of lines from the other three pairs of lines, the larger the test value, the better.
Attenuation crosstalk ratio: The difference between the attenuated signal from the far end and the crosstalk noise. Test the difference, that is, the larger the ACR value, the better.
Return loss: The reflection of the cable link due to impedance mismatch, the mismatch mainly occurs in the connector, or it may occur in the cable where the characteristic impedance changes, so the construction quality is the key to improve the return loss. The larger the return loss test value, the better.
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