M Solutions MS-TestPro MS103TDs, Руководство пользователя

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MS-TestPro User’s Manual
Page 44 of 113
5. Tap on the Pair-to-Pair Resistance Unbalanced button to display the difference in DC
resistance between the four pairs in the cable. For each pair, the difference is expressed in
ohms, as shown in the figure below.
A difference of under 0.2 ohms or 5% (the higher between the two) indicates that the pair
should be capable of delivering the required common-mode current needed to effectively
support PoH and data transmission over the pair.
Figure 52: Pair-to-Pair Resistance Unbalanced Results
IMPORTANT
The MS- TestPro modules are not “hot swappable”. Make sure to shut down by pressing the Off
button and turn off the unit before swapping modules.