I am wondering: if I use one of these to extend my ethernet connection
(well within the 100 metre limit) will it have any material effect on
speed? Asking the question of Mr Google produces mixed views.

Scott wrote:

> I am wondering: if I use one of these to extend my ethernet connection
> (well within the 100 metre limit) will it have any material effect on
> speed?

Short answer, no.

On 14/11/2022 17:04, Scott wrote:

> I am wondering: if I use one of these to extend my ethernet connection
> (well within the 100 metre limit) will it have any material effect on
> speed? Asking the question of Mr Google produces mixed views.

IME they will work fine for data at 1GB/s

--
Cheers,

John.

/=================================================================\
| Internode Ltd - http://www.internode.co.uk |
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| John Rumm - john(at)internode(dot)co(dot)uk |
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On Mon, 14 Nov 2022 17:46:32 +0000, John Rumm
<see.my.signature@nowhere.null> wrote:

>On 14/11/2022 17:04, Scott wrote:
>
>> I am wondering: if I use one of these to extend my ethernet connection
>> (well within the 100 metre limit) will it have any material effect on
>> speed? Asking the question of Mr Google produces mixed views.
>
>IME they will work fine for data at 1GB/s

Thanks x2

On Mon, 14 Nov 2022 17:04:38 +0000, Scott
<newsgroups@gefion.myzen.co.uk> wrote:

>I am wondering: if I use one of these to extend my ethernet connection
>(well within the 100 metre limit) will it have any material effect on
>speed? Asking the question of Mr Google produces mixed views.
I'm doing it (for some years now). Works fine.

On 14/11/2022 17:04, Scott wrote:
> I am wondering: if I use one of these to extend my ethernet connection
> (well within the 100 metre limit) will it have any material effect on
> speed? Asking the question of Mr Google produces mixed views.

The original 10Mhz Ethernet allowed you to have two connections.
So switch<=>patch cable<=>trunk cable<=>patch cable<=>device..
...I understand that at some point they added an extra connection, I
believe because of POS machines, so adding an in-line coupler should not
affect performance...
Dave

Depends on the contact resistance I'd say, El cheapo bits usually tend to
give issues at higher speeds, but I guess if things are left alone, then
probably no issue, but the speeds have gone up a lot of late and some
cabling may just not be that good.
Brian

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"Scott" <newsgroups@gefion.myzen.co.uk> wrote in message
news:n5t4nh1nkpl8e63odqmi7a2olag1fhr6a2@4ax.com...
>I am wondering: if I use one of these to extend my ethernet connection
> (well within the 100 metre limit) will it have any material effect on
> speed? Asking the question of Mr Google produces mixed views.

On Monday, 14 November 2022 at 23:57:33 UTC, David Wade wrote:
> On 14/11/2022 17:04, Scott wrote:
> > I am wondering: if I use one of these to extend my ethernet connection
> > (well within the 100 metre limit) will it have any material effect on
> > speed? Asking the question of Mr Google produces mixed views.
> The original 10Mhz Ethernet allowed you to have two connections.
> So switch<=>patch cable<=>trunk cable<=>patch cable<=>device..
> ..I understand that at some point they added an extra connection, I
> believe because of POS machines, so adding an in-line coupler should not
> affect performance...
> Dave
Adding a second device doesn't just involve adding some extra
connectors and extending the cable. The intermediate device will
contain a 3-port ethernet switch so the cable is not actually
extended at all, not is an extra connector inserted. The cables between
the intermediate device and the end device and the intermediate
device and the distant switch are electrically independent.
Simply joining two patch cables together with a coupler to get more length
may not be ideal, but it usually works just fine. The most common
problem is that the cables get disengaged or that the coupler
falls apart. The standards allow for up to 10m of patch cables and
90m of "horizontal" cabling which means the bit built into the building.
There will typically only be a metre or so of patch cable at the switch end, so
up to 10m of cable at the user end will be fine. Most horizontal
runs are shorter than the maximum, so in most cases patch cables
can be much longer.
1Gbit/s ethernet can be just as reliable than 100Mbit/s, surprising as
it might seem. They both operate over exactly the same frequency
range, but 1Gbit/s uses more complex equalisers and echo cancellers.
All speeds up to 2.5Gbit/s are fine over CAT5e or better cable at up to
100m cable length.
CAT5e is specified up to 100MHz (and may have an attenuation as
high as about 30dB at that frequency).
Using higher spec cable such as CAT6 or the much better 6A will
improve the immunity to interference.

John

Scott <newsgroups@gefion.myzen.co.uk> wrote:
> I am wondering: if I use one of these to extend my ethernet connection
> (well within the 100 metre limit) will it have any material effect on
> speed? Asking the question of Mr Google produces mixed views.

Possibly not great for 10 gigabits/s, should be fine for 1 gig.

Theo

On 15/11/2022 10:29, Theo wrote:
> Scott <newsgroups@gefion.myzen.co.uk> wrote:
>> I am wondering: if I use one of these to extend my ethernet connection
>> (well within the 100 metre limit) will it have any material effect on
>> speed? Asking the question of Mr Google produces mixed views.
>
> Possibly not great for 10 gigabits/s, should be fine for 1 gig.
>
> Theo
A well made connector will not result in much reflection. \thernet is
driven at fairly high power over short to medium distances.

The original coaxial Ethernet was limited by time delays and collision
avoidance: use of switches and a star network pretty much eliminated
that so its really all about preserving the waveform over the distance now.
Honestly i'd say long cables are more an issue than couplers.

--
Climate is what you expect but weather is what you get.
Mark Twain

The Natural Philosopher wrote:

> A well made connector will not result in much reflection.

Some cat6 patch panels are actually constructed with back-to-back "keystone"
RJ45 sockets anyway, so there are double the number of plug/socket connections
compared to a punch-down wired patch panel.

On 14/11/2022 17:17, Andy Burns wrote:
> Scott wrote:
>
>> I am wondering: if I use one of these to extend my ethernet connection
>> (well within the 100 metre limit) will it have any material effect on
>> speed?
>
> Short answer, no.
>
>
Slightly longer answer: It'll reduce the range a bit. So long as you are
well under 100m no problem at all. And you'd probably get away with it
at full length too - there's quite a bit of headroom.

Andy