Really struggling with RJ45 connectors.

[static zap]

I kept a trimmed perfect template "cable" sample - glued -
to "crimper" storage.
Thru connectors sound so much simpler -to all that preening/re-trimming !
(some crimp tools can add a step to the side of the divider )
(look close with an eye glass !)

 

[Taylortwocities]

This one is cheaper - £3.50!!
LINK

Thanks, I just bought one of those!

 

[HappyHippyDad]

Just bought one!

My suggested method for terminating UTP into closed-end Cat5e connectors:

1. Leave ends too long and untwist as far as jacket.
2. Pinch jacket tightly at end with one hand to stop cores moving about.
3. Pinch cores lightly in a flat row with other hand and pull along them as if combing with your fingers, repeating 3-4 times first giving a curl upwards, then downwards, then straight.
4. Let go of jacket. Pinch fingers together and tuck cores between them in sequence, ensuring they take the straightest route from their position in the jacket without looping around each other.
5. When all in a row pinch jacket again, flex cores up and down once as a flat row to teach them their final positions, then trim to length. They should lie exactly flush and parallel by themselves.
6. Slide row of cores along base of entry channel until sheath is inside clamping zone
7. Visually check sequence and look into end of connector to make sure you can see copper in each position.
8. Keep pinched firmly and push cable into connector while you crimp.

Takes me about 25 seconds, can't remember the last time one didn't work.
Note that some types of RJ45 are designed for solid-core, some for stranded patch and some for both.

Looking at those pics, I agree that the cores are not fully inserted - they should reach to the very end of the channels so that when you look at the end of the connector you can see both the conductor and insulation clearly on each core.

Also as mentioned above, the sequence is wrong. It is not sufficient that each pin at one end is connected to the same pin at the other. Splitting pairs (e.g. swapping one orange with one blue but putting them right at the far end) will completely scramble the transmission as the go and return of each of the four circuits must form a twisted pair to have the correct characteristics.

Yes, you are right they were not pushed in far enough. It seems to work fine now I have inserted them further in.

With regards your last paragraph I'm not sure what you mean as I believe I have the sequence correct? If you see post #6 you will see I have used T568A, however I realise T568B is usually used. Does it make a difference which one you use?

 

[Zerax]

Does it make a difference which one you use?

No. As long as you use the same method at each end. Most modern equipment will auto-sense A or B sequence if it's relevant.
[automerge]1583704330[/automerge]
Oh... before I forget... don't bother making up patch cables if you need 'em. Just buy them in... it's cheaper, easier and looks better.

 

[Lucien Nunes]

I believe I have the sequence correct

Yes, my apologies, I thought at first that the brown/white and orange/white were interchanged but now I see it on a proper screen it is indeed correct 568A.

 

[pirate]

Here's a video for pass-thru with Klein tools crimper.

View: https://www.youtube.com/watch?v=9HDR6T_w4SU

I have only recently started doing this stuff, and never had a fail yet...
I have not very good eyesight, so actually I leave the tails extra long so I can thread each core into the connector individually, verify they are in the correct sequence then pull the excess through so the outer jacket is right into the connector, crimp and cut off the excess in one go. Those with good sight and nimble fingers can do this in seconds.

 

[mattg4321]

I use the Ideal pass through crimper. Handy as you can buy the rj45 ends from screwfix if you need them quick.

Absolutely brilliant. Very quick and never had a failure.

 

[KWCFC]

View attachment 56235 View attachment 56236 View attachment 56237

Them crimpers are naff buddy. They'll work for your first 50 odd crimps but then unreliable after that.

As mentioned before your better of using the feed through crimpers and the compatible crimps. Your spending a bit more but they NEVER fail.

I use these ones: Klein Tools Compact Ratchet Modular Crimper - https://www.NoLinkingToThis/p/klein-tools-compact-ratchet-modular-crimper/8309K?tc=BA8&ds_kid=92700022850516740&gclsrc=aw.ds&ds_rl=1241687&ds_rl=1245250&ds_rl=1244066&gclid=CjwKCAjwgbLzBRBsEiwAXVIygBRzgl-M0yvbnR4gXL18blnqfkaZrKExtZcFkaPUM2tic82WTsi1FhoCuGAQAvD_BwE

 

[richy3333]

@happyhippydad if its any consolation I always find them fiddly to do whether cat 5 or 6. Wires are too small and my eyes are too old. Best advice I can give is to take your time and allow for lots of waste to be cut off. I also use the Klein crimp tool and the through type RJ45 connectors

 

[nate9595]

Stick it in and squash a ball of blu-tack onto one side. done this loads of times with connectors with broken clips, an inexpensive hack that works great.

 

[nate9595]

There are uses for a "mirror opposite" cable in networking with RJ45 connectors. I'm not sure this is one of those situations, though.

Agreed on the tester.

(Removed link - SC)

 

[DPG]

There are uses for a "mirror opposite" cable in networking with RJ45 connectors. I'm not sure this is one of those situations, though.

Agreed on the tester.


https://www.cablingstore.us/

No, it's not.

 

[UNG]

There are uses for a "mirror opposite" cable in networking with RJ45 connectors. I'm not sure this is one of those situations, though.

Can you explain?

 

[timhoward]

Can you explain?

I believe he was talking about making a cross-over cable to directly connect two devices. 1+2 to 3+6 and vice versa. Not needed so much these days!

 

[DPG]

I believe he was talking about making a cross-over cable to directly connect two devices. 1+2 to 3+6 and vice versa. Not needed so much these days!

Yes most devices auto sense the cable type now.

 

[SparkyChick]

Can you explain?

Back in the day, when switches and hubs weren't cheap, you could connect two PCs together using a crossover cable. If memory serves, you'd use the T568A standard on one end and T568B on the other so the cores in the connectors went something like this...

orange/white -> green/white
orange       -> green
green/white  -> orange/white
blue         -> blue
blue/white   -> blue/white
green        -> orange
brown/white  -> brown/white
brown        -> brown

These days you'd need to factor in the blue/brown pairs as well I think as for higher speeds I think they form a data path and you'd need to be careful with POE devices

 

[davesparks]

Can you explain?

I suspect the explanation is in the last line of that post, spam!

 

[UNG]

I believe he was talking about making a cross-over cable to directly connect two devices. 1+2 to 3+6 and vice versa. Not needed so much these days!

A crossover cable is not a "mirror opposite" though

 

[timhoward]

A crossover cable is not a "mirror opposite" though

I think @davesparks had it right - I didn't expand the message and see the website link.

 

[UNG]

Back in the day, when switches and hubs weren't cheap, you could connect two PCs together using a crossover cable. If memory serves, you'd use the T568A standard on one end and T568B on the other so the cores in the connectors went something like this...

orange/white -> green/white
orange       -> green
green/white  -> orange/white
blue         -> blue
blue/white   -> blue/white
green        -> orange
brown/white  -> brown/white
brown        -> brown

Crossover cables are still used today in some peer to peer applications although auto negotiation has somewhat reduced their use these days

These days you'd need to factor in the blue/brown pairs as well I think as for higher speeds I think they form a data path and you'd need to be careful with POE devices

This is the big minefield these days mixing POE and data does not normally end well