• Making up an Ethernet cable (or failing to)

    From Sam Plusnet@21:1/5 to All on Tue Feb 4 19:10:13 2025
    I bought a 40 metre long Cat6 cable to install an outdoor camera.
    Before starting work I tested it with my new cable tester. It was fine.
    (Yes, the cable is rated for outdoor use.)

    Whilst installing the cable I had to cut off one connector to get the
    cable through a 'conduit' into the house.
    I added a new connector to that end, and re-tested to cable. The LEDs
    for core 1 failed to light at BOTH the TX and the RX end.

    I ended up cutting off and remaking both connectors.
    Now I have the core 1 LED lighting at the TX end, but doesn't light at
    the RX end.

    (All other core are fine.)

    Since I don't have a circuit diagram for this tester, I don't understand
    the significance of:
    LED fails to light at both ends
    versus
    LED fails to light at the RX end only.

    Help & hints will be happily received.


    --
    Sam Plusnet

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  • From NY@21:1/5 to Andy Burns on Tue Feb 4 19:44:28 2025
    On 04/02/2025 19:17, Andy Burns wrote:
    Sam Plusnet wrote:

    I ended up cutting off and remaking both connectors.

    Is it solid core wires, or multi strand?  Which type of wire are your
    crimp plugs for?


    I bought a crimper ages ago to make up Ethernet cables. I've not idea
    whether it was for single core or stranded cable - I don't remember
    being offered crimp plugs for the two different types: I just used the
    ones that were bundled with the tool.

    I found it impossible to get it to work, mainly because of the problem
    of arranging the wires in exactly the same configuration at both ends so
    (for example) the red wire was pin 3 and the blue one was pin 4 at both
    ends. I couldn't get all n wires to go fully into their respective holes
    in the plug simultaneously so all of them were crimped.

    I gave it up as a bad loss. The instructions and the salesman made it
    sound so easy, but I was too clumsy (?) to get all the wires into the
    right places on both plugs.

    It is probably *much* easier to crimp plugs onto modern flat (ribbon
    cable) Cat 5, where all the wires are inline, than older
    circular-profile cable which is what I was trying to do (flat-cat 5
    hadn't been released then).

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  • From Pancho@21:1/5 to All on Tue Feb 4 20:02:15 2025
    On 2/4/25 19:44, NY wrote:

    I gave it up as a bad loss. The instructions and the salesman made it
    sound so easy, but I was too clumsy (?) to get all the wires into the
    right places on both plugs.


    You can get plugs that have a detachable cable guide. Thread the
    separate cables before inserting it into the plug.

    <https://uk.rs-online.com/web/p/ethernet-connectors/7918504>


    It is probably *much* easier to crimp plugs onto modern flat (ribbon
    cable) Cat 5, where all the wires are inline, than older circular-
    profile cable which is what I was trying to do (flat-cat 5 hadn't been released then).

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  • From Andy Burns@21:1/5 to Sam Plusnet on Tue Feb 4 19:17:52 2025
    Sam Plusnet wrote:

    I ended up cutting off and remaking both connectors.

    Is it solid core wires, or multi strand? Which type of wire are your
    crimp plugs for?

    --- SoupGate-Win32 v1.05
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  • From Andy Burns@21:1/5 to All on Tue Feb 4 19:49:21 2025
    NY wrote:

    I bought a crimper ages ago to make up Ethernet cables. I've not idea
    whether it was for single core or stranded cable - I don't remember

    mostly they're for stranded, as that's most patch leads, but when the
    O/P said it was outdoor cable, Ithough that would more likely be solid?

    I found it impossible to get it to work, mainly because of the problem
    of arranging the wires in exactly the same configuration at both ends

    Just use the Dave Jones squint while sticking your tongue out technique!

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  • From The Natural Philosopher@21:1/5 to Andy Burns on Tue Feb 4 20:47:36 2025
    On 04/02/2025 19:49, Andy Burns wrote:
    NY wrote:

    I bought a crimper ages ago to make up Ethernet cables. I've not idea
    whether it was for single core or stranded cable - I don't remember

    mostly they're for stranded, as that's most patch leads, but when the
    O/P said it was outdoor cable, Ithough that would more likely be solid?


    There is solid and there is stranded and you never get a correct joint
    if you use the wrong one.
    Most wall sockets punch down solid, most plugs are for stranded
    -
    I found it impossible to get it to work, mainly because of the problem
    of arranging the wires in exactly the same configuration at both ends

    Just use the Dave Jones squint while sticking your tongue out technique!

    --
    "In our post-modern world, climate science is not powerful because it is
    true: it is true because it is powerful."

    Lucas Bergkamp

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  • From Sam Plusnet@21:1/5 to Andy Burns on Tue Feb 4 21:52:33 2025
    On 04/02/2025 19:49, Andy Burns wrote:
    NY wrote:

    I bought a crimper ages ago to make up Ethernet cables. I've not idea
    whether it was for single core or stranded cable - I don't remember

    mostly they're for stranded, as that's most patch leads, but when the
    O/P said it was outdoor cable, Ithough that would more likely be solid?

    I found it impossible to get it to work, mainly because of the problem
    of arranging the wires in exactly the same configuration at both ends

    It's much easier with solid core cable (this Cat6 outdoor is solid core).
    I spent some time making up leads using off-cuts of the Cat6 outdoor
    cable and that worked every time - right up until the point where it
    actually mattered.

    Just use the Dave Jones squint while sticking your tongue out technique!

    I promise that my tongue was in the required configuration. I find it impossible to do this sort of thing without (much to my wife's amusement).

    --
    Sam Plusnet

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  • From Sam Plusnet@21:1/5 to Andy Burns on Tue Feb 4 21:53:50 2025
    On 04/02/2025 19:17, Andy Burns wrote:
    Sam Plusnet wrote:

    I ended up cutting off and remaking both connectors.

    Is it solid core wires, or multi strand?  Which type of wire are your
    crimp plugs for?

    Solid - and the connectors _seem_ suitable for that.

    The 24 AWD solid cores made it easier to get & keep the cores arrayed in
    the correct order whilst feeding them into/through the connector.
    The extra flex of multi-strand (I tried putting connectors on an old
    patch cord for some practice) made this seem almost impossible.

    --
    Sam Plusnet

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  • From Theo@21:1/5 to John R Walliker on Tue Feb 4 21:55:04 2025
    John R Walliker <jrwalliker@gmail.com> wrote:
    On 04/02/2025 20:02, Pancho wrote:
    On 2/4/25 19:44, NY wrote:

    I gave it up as a bad loss. The instructions and the salesman made it
    sound so easy, but I was too clumsy (?) to get all the wires into the
    right places on both plugs.


    You can get plugs that have a detachable cable guide. Thread the
    separate cables before inserting it into the plug.

    <https://uk.rs-online.com/web/p/ethernet-connectors/7918504>


    It is probably *much* easier to crimp plugs onto modern flat (ribbon
    cable) Cat 5, where all the wires are inline, than older circular-
    profile cable which is what I was trying to do (flat-cat 5 hadn't been
    released then).

    You can also get plugs with holes at the ends. This allows you to push
    an excess of wire through so that the colours can easily be checked
    before crimping. Some of these are also rated for use with either
    solid or stranded wire.

    For example:
    https://www.amazon.co.uk/dp/B07MM3FQ3F

    There is a special tool that trims the excess, but side cutters
    work fine in conjunction with a standard crimp tool.

    I have a basic crimp tool and a bag of RJ45 connectors from years ago, of
    both the standard and guide ('load bar') versions. I just couldn't get cat6 external cable to crimp properly - pushing it into the plug would always
    kink somewhere and miss a wire or two from the terminals. Maybe cat6 was
    too thick?

    I was going to buy some 'passthrough' RJ45 connectors but they seemed to be quite hard to buy in small quantities (roughly £10 for a bag), so I ended up buying a set including the crimp tool which also trims (£15 a few weeks ago): https://www.amazon.co.uk/dp/B0DCZ7KY77

    The gamechanger with this is it's possible to feed one wire at a time
    through the connector, and check it's in the right spot before feeding in
    the next one. Didn't take much practice before I got the technique.

    Theo

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  • From Chris Green@21:1/5 to John R Walliker on Wed Feb 5 07:34:46 2025
    John R Walliker <jrwalliker@gmail.com> wrote:
    On 04/02/2025 20:02, Pancho wrote:
    On 2/4/25 19:44, NY wrote:

    I gave it up as a bad loss. The instructions and the salesman made it
    sound so easy, but I was too clumsy (?) to get all the wires into the
    right places on both plugs.


    You can get plugs that have a detachable cable guide. Thread the
    separate cables before inserting it into the plug.

    <https://uk.rs-online.com/web/p/ethernet-connectors/7918504>


    It is probably *much* easier to crimp plugs onto modern flat (ribbon
    cable) Cat 5, where all the wires are inline, than older circular-
    profile cable which is what I was trying to do (flat-cat 5 hadn't been
    released then).

    You can also get plugs with holes at the ends. This allows you to push
    an excess of wire through so that the colours can easily be checked
    before crimping. Some of these are also rated for use with either
    solid or stranded wire.

    For example:
    https://www.amazon.co.uk/dp/B07MM3FQ3F

    There is a special tool that trims the excess, but side cutters
    work fine in conjunction with a standard crimp tool.

    They look useful, I have a load of plugs but can't differentiate the solid/stranded versions. On the other hand I don't have too much
    trouble getting the wires in the right order (no tongue involved!) and
    I have a lot of home-made cat5 leads around the place which work
    pretty reliably up to gigabit speeds. I test before installation with
    a cable tester and that weeds out the odd failure (usually an
    unconnected wire, not misplaced wires).

    --
    Chris Green
    ·

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  • From wasbit@21:1/5 to Theo on Wed Feb 5 09:43:16 2025
    On 04/02/2025 21:55, Theo wrote:
    John R Walliker <jrwalliker@gmail.com> wrote:
    On 04/02/2025 20:02, Pancho wrote:
    On 2/4/25 19:44, NY wrote:

    I gave it up as a bad loss. The instructions and the salesman made it
    sound so easy, but I was too clumsy (?) to get all the wires into the
    right places on both plugs.


    You can get plugs that have a detachable cable guide. Thread the
    separate cables before inserting it into the plug.

    <https://uk.rs-online.com/web/p/ethernet-connectors/7918504>


    It is probably *much* easier to crimp plugs onto modern flat (ribbon
    cable) Cat 5, where all the wires are inline, than older circular-
    profile cable which is what I was trying to do (flat-cat 5 hadn't been >>>> released then).

    You can also get plugs with holes at the ends. This allows you to push
    an excess of wire through so that the colours can easily be checked
    before crimping. Some of these are also rated for use with either
    solid or stranded wire.

    For example:
    https://www.amazon.co.uk/dp/B07MM3FQ3F

    There is a special tool that trims the excess, but side cutters
    work fine in conjunction with a standard crimp tool.

    I have a basic crimp tool and a bag of RJ45 connectors from years ago, of both the standard and guide ('load bar') versions. I just couldn't get cat6 external cable to crimp properly - pushing it into the plug would always
    kink somewhere and miss a wire or two from the terminals. Maybe cat6 was
    too thick?

    I was going to buy some 'passthrough' RJ45 connectors but they seemed to be quite hard to buy in small quantities (roughly £10 for a bag), so I ended up buying a set including the crimp tool which also trims (£15 a few weeks ago):
    https://www.amazon.co.uk/dp/B0DCZ7KY77

    The gamechanger with this is it's possible to feed one wire at a time
    through the connector, and check it's in the right spot before feeding in
    the next one. Didn't take much practice before I got the technique.


    +1
    Even with passthrough RJ45s it's easiest if you can get the kinks out of
    the twisted pairs & get each wire as straight as possible.



    --
    Regards
    wasbit

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  • From Andy Burns@21:1/5 to Chris Green on Wed Feb 5 10:16:27 2025
    Chris Green wrote:

    I have a load of plugs but can't differentiate the
    solid/stranded versions.

    <https://i.sstatic.net/PUwjE.jpg>

    --- SoupGate-Win32 v1.05
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  • From fred@21:1/5 to Andy Burns on Wed Feb 5 12:53:44 2025
    Andy Burns <usenet@andyburns.uk> wrote in news:m0gs3tFar14U2 @mid.individual.net:

    Chris Green wrote:

    I have a load of plugs but can't differentiate the
    solid/stranded versions.

    <https://i.sstatic.net/PUwjE.jpg>


    Useful, thx.

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  • From Sam Plusnet@21:1/5 to Sam Plusnet on Thu Feb 6 19:20:45 2025
    On 04/02/2025 19:10, Sam Plusnet wrote:
    I bought a 40 metre long Cat6 cable to install an outdoor camera. Before starting work I tested it with my new cable tester.  It was fine.
    (Yes, the cable is rated for outdoor use.)

    Whilst installing the cable I had to cut off one connector to get the
    cable through a 'conduit' into the house.
    I added a new connector to that end, and re-tested to cable.  The LEDs
    for core 1 failed to light at BOTH the TX and the RX end.

    I ended up cutting off and remaking both connectors.
    Now I have the core 1 LED lighting at the TX end, but doesn't light at
    the RX end.

    (All other core are fine.)

    Since I don't have a circuit diagram for this tester, I don't understand
    the significance of:
    LED fails to light at both ends
    versus
    LED fails to light at the RX end only.

    Help & hints will be happily received.

    Just to add a coda to this, I checked for continuity from end to end of
    the cable with a multimeter (just in case I had managed to break a core somewhere in the middle of the cable, with some rough handling) - it was
    fine.
    I then re-terminated (one end of) the cable one more time, and all is well.

    --
    Sam Plusnet

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  • From Andrew@21:1/5 to Andy Burns on Thu Feb 6 20:32:32 2025
    On 05/02/2025 10:16, Andy Burns wrote:
    Chris Green wrote:

    I have a load of plugs but can't differentiate the
    solid/stranded versions.

    <https://i.sstatic.net/PUwjE.jpg>

    Hmm. Ta for that.

    The OR droid who fixed up my internal wiring when I was upgraded
    to DV used gel-filled crimps to join a 2-core flying lead
    phone extension (plugged into the SH2) to my solid CAT5E
    internal extension wiring.

    I wonder if this is OK. If not, what would be the best way ?.

    I am tempted to remove the crimps, clean off the gel muck
    and solder + heatshrink them.

    Comments ?.

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  • From Andy Burns@21:1/5 to Andrew on Thu Feb 6 20:40:58 2025
    Andrew wrote:

    The OR droid who fixed up my internal wiring when I was upgraded
    to DV used gel-filled crimps to join a 2-core flying lead
    phone extension (plugged into the SH2) to my solid CAT5E
    internal extension wiring.

    I wonder if this is OK.

    The jelly crimps are generally good, I have some where the underground
    wiring enters in my wall cavity, keeps the damp out.

    --- SoupGate-Win32 v1.05
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