Pertanyaan
A NEXT measurement of 59.5 dB is made on wire pairs 1-2/3-6. A next measurement of 51.8db is made on wire pairs 3-6/7-8. Which cable pairs have the best measure NEXT performance?
Jawaban
Penjelasan
Step1:
Understanding NEXT Measurement NEXT stands for Near End Crosstalk. It is a measure of the signal interference between two wire pairs in a cable. A higher NEXT value (in dB) indicates better performance, as it means there is less interference between the wire pairs.
Step2:
Comparing the NEXT ValuesWe have two NEXT measurements:
59.5 dB for wire pairs 1-2/3-6 and 51.8 dB for wire pairs 3-6/7-8. Since a higher NEXT value is desirable, we compare these two values.Step3:
Determining the Best Performing Cable PairsThe wire pairs with the higher NEXT value are considered to have the best NEXT performance. In this case, wire pairs 1-2/3-6 have a higher NEXT value (59.5 dB) than wire pairs 3-6/7-8 (51.8 dB). Therefore, wire pairs 1-2/3-6 have the best NEXT performance.
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