Question Can you test ethernet cable while it's connected to a switch?

Newtonian

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Sep 9, 2013
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With a NF-488 tester, can you test an ethernet cable while it is connected to a switch, by connecting the other end to the RJ 45 port of the NF-488?
Or is it necessary to disconnect the cable altogether from the switch and have the open end connect to the "wiremap" device that came with the NF-488?
(The switch is located at a hard-to-access place, so it's preferred to not have to go to the switch.)
 

kanewolf

Titan
Moderator
With a NF-488 tester, can you test an ethernet cable while it is connected to a switch, by connecting the other end to the RJ 45 port of the NF-488?
Or is it necessary to disconnect the cable altogether from the switch and have the open end connect to the "wiremap" device that came with the NF-488?
(The switch is located at a hard-to-access place, so it's preferred to not have to go to the switch.)
You could test POE. I don't think you can verify wire continuity.
 

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