RJ45 Cable: everything is fine on the tester but no connection
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tosigui
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brupala Posted messages 111399 Registration date Status Membre Last intervention -
brupala Posted messages 111399 Registration date Status Membre Last intervention -
Hello,
I just installed a 27m long RJ45 cable between my Freebox server and a NAS.
The tester shows everything seems to work, the 8 LEDs light up one after the other. However, there is no connection. I'm at a loss.
The equipment in detail:
- the tester:
https://www.amazon.fr/gp/product/B01HGHMGT2/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
- the cable: Nexans cat 6 F/UTP LSZH (apparently category 6A)
- the connectors:
https://www.amazon.fr/gp/product/B01N4FDT9A/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
Note: each of the 8 wires is too thick to fit into the connector guide, so I had to strip them by 3mm, which may make the contact less precise (Do I need specific 6A connectors?). But again, the tester indicates that everything works.
Last note: when connected with an exposed cable, the connection works well, so the problem is indeed with my cable or the connector connections.
Thank you in advance for your help.
I just installed a 27m long RJ45 cable between my Freebox server and a NAS.
The tester shows everything seems to work, the 8 LEDs light up one after the other. However, there is no connection. I'm at a loss.
The equipment in detail:
- the tester:
https://www.amazon.fr/gp/product/B01HGHMGT2/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
- the cable: Nexans cat 6 F/UTP LSZH (apparently category 6A)
- the connectors:
https://www.amazon.fr/gp/product/B01N4FDT9A/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
Note: each of the 8 wires is too thick to fit into the connector guide, so I had to strip them by 3mm, which may make the contact less precise (Do I need specific 6A connectors?). But again, the tester indicates that everything works.
Last note: when connected with an exposed cable, the connection works well, so the problem is indeed with my cable or the connector connections.
Thank you in advance for your help.
2 réponses
One more word: I have tested the tester on other cables, it works (positively and negatively, meaning that I checked that it indicates everything is fine on functioning cables and that some connections do not work when I cover them)
Thanks again
Thanks again
Hello,
What type of cable is it exactly? Because if it’s a cable intended for wall installation, inside a conduit, it’s a single-strand copper cable, rather stiff. For this type of cable, you need to use suitable female connectors; a male connector can't be used. The latter is designed for a multi-strand, more flexible cable.
With a male connector on a single-strand cable, the contacts may not make a proper connection. Hence your "each of the 8 wires is too thick to fit into the connector guide".
Best regards
What type of cable is it exactly? Because if it’s a cable intended for wall installation, inside a conduit, it’s a single-strand copper cable, rather stiff. For this type of cable, you need to use suitable female connectors; a male connector can't be used. The latter is designed for a multi-strand, more flexible cable.
With a male connector on a single-strand cable, the contacts may not make a proper connection. Hence your "each of the 8 wires is too thick to fit into the connector guide".
Best regards
It is indeed a rather rigid single-strand cable, but I understood that the only cables that can only be connected to female sockets are category 7, and that male sockets still work for category 6.
How can we understand that the "contacts can be poorly made," as you say, but that the result is okay on the tester?
Thank you.
How can we understand that the "contacts can be poorly made," as you say, but that the result is okay on the tester?
Thank you.
Hello,
generally speaking, I only get female connectors mounted on this kind of cable; it should be AWG22 or AWG23.
The male connectors that are somewhat suitable are like this one
We call it an all-terrain connector because they can be disassembled and reassembled without tools, making them recoverable from a temporary installation.
For Tosigui,
in any case, we mount female connectors on a permanently installed cable and add cords at the end.
Your cable must have a lot of bad contacts on the connectors; if you test the continuity, it probably won't be good every time.
Also,
thankfully we can use Cat5 on female connectors, even Cat3, but that wouldn't be a good idea.
Especially since, in fact, for pure and hard Cat7, we don't use RJ45, but .... something else.
generally speaking, I only get female connectors mounted on this kind of cable; it should be AWG22 or AWG23.
The male connectors that are somewhat suitable are like this one
We call it an all-terrain connector because they can be disassembled and reassembled without tools, making them recoverable from a temporary installation.
For Tosigui,
in any case, we mount female connectors on a permanently installed cable and add cords at the end.
Your cable must have a lot of bad contacts on the connectors; if you test the continuity, it probably won't be good every time.
Also,
thankfully we can use Cat5 on female connectors, even Cat3, but that wouldn't be a good idea.
Especially since, in fact, for pure and hard Cat7, we don't use RJ45, but .... something else.