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ICX7150 Cable TDR Command State Analysis

New Contributor II

Hi, everyone.

TDR commands were used to inspect the entire network.

When I searched Google for materials related to RUCKUS, there was no clear answer, so I am contacting you

■ Inspection status




It is necessary to interpret the parts indicated in the red box in the above inspection conditions.

Basically, I know that it is normal if the cable distance is the same.

Open: RJ45 Bad Pin Contact
Short: Cable stuck together signal failure
Terminated: Connects successfully

1. Why do I see cable length information in 80-110M instead of 80M?

2. The reason why <=2M short is displayed is that a short occurred at the 2M point?

3. The reason why <=8M Open is displayed is because of the disconnection at the 8M point?

4. Why does Pair A display a question mark?

5. If PairA and D are 80-110M terminated, and PairB and C are 50-80M terminated, is the cable normal? If it is abnormal, why is it displayed like this?


I'm so frustrated whether I can't find the data or I don't have it.

Help me.
Thank you.






Hi ChoiYoung, 

You are correct, the rest of the show information should be correct, unless you are seeing pair status unknown.


View solution in original post


RUCKUS Team Member

Hi Choiyoungae

From the description I see that you did mention RJ45 cable. Could you please let us know the category of the cable you are using in 1/1/12 , 1/1/4 and 1/1/6 also if you could help us with what devices they are connected to on 1/1/12, 1/1/4 and 1/1/6. 


Chandini, hello!

All cables use CAT.5e and have APR 310 connected.

Please help me.
Thank you.