patch cable - network cable
alo
just the length?
Synapse Syndrome
news:of7p14lr6fmnj93g1...@4ax.com...
> What's the difference between a patch cable and a network cable? Is it
> just the length?
Yeah, a ethernet patch cable is just a short cable, and opposed to a
crossover cable, which seem to be pretty hard to come by these days.
ss.
Dr Zoidberg
> just the length?
Different terms for the same thing , though often misused to refer to other
things as well
--
Alex
"I laugh in the face of danger , then I hide until it goes away"
Alex Fraser
> What's the difference between a patch cable and a network cable? Is it
> just the length?
The term is variously used to mean "straight through" in contrast to
"crossover", or "flex" as opposed to "wire". I would say "patch" is an
application, not a characteristic of a network cable.
A common application is between a wall-mounted socket and computer - for
which a short, straight through, flexible cable is ideal :).
Alex
Alex Fraser
> alo wrote:
>> What's the difference between a patch cable and a network cable? Is it
>> just the length?
>
> The term is variously used to mean "straight through" in contrast to
> "crossover", or "flex" as opposed to "wire". I would say "patch" is an
> application, not a characteristic of a network cable.
Sorry, I should have noted that the application does imply one thing
about the cable: it must have connectors on both ends.
Johnny B Good
from Alex Fraser <m...@privacy.net> contains these words:
> Alex Fraser wrote:
> > alo wrote:
> >> What's the difference between a patch cable and a network cable? Is it
> >> just the length?
> >
> > The term is variously used to mean "straight through" in contrast to
> > "crossover", or "flex" as opposed to "wire". I would say "patch" is an
> > application, not a characteristic of a network cable.
> Sorry, I should have noted that the application does imply one thing
> about the cable: it must have connectors on both ends.
That's exactly it! It can be any length (patch cables for ethernet CAT5
can even be as short as half a metre) right up to 20 or 30 metres or
longer (up to the 'official' max of 100 metres). The defining
description is that it is a length of cable with a plug at each end
(regardles, in this particular instance, of whether it's a straight or a
crossover cable).
The use of the word 'patch' has basically been in existence since the
earliest days of telephony and has been used to describe such things as
'patch panels' where such patch cords would be used and the term patch
panel has been applied just about anywhere else where any such similar
electrical interconnect panel might be used such as in the very early
computers (both digital and analogue) and in music recording studios.
The term, afaiaa, was never used in power distribution panels, usually
being restricted to low voltage signals such as voice and RF[1] and
digital (data and or control) signals.
A network cable would be a more permanent link between a patch panel
and a terminal socket installed wherever a computer (or similar digital
device) needed network access typically within the reach of a patch lead
of a more managable 3 to 5 metre length.
[1] Patch panels at high power wireless transmitting stations are an
exception to the 'low voltage rule'. However, a transmitter would
normally be shutdown during any such alterations on the patch panel, as
much to prevent damage to the equipment as to ensure safety to the patch
operator.
--
Regards, John.
Please remove the "ohggcyht" before replying.
The address has been munged to reject Spam-bots.
jamesh...@yahoo.co.uk
is it flexible because of stranded wires inside, whereas the non patch
cable, the cable that goes within the walls(between patch panel and
wall mounted socket), is solid core, thus less flexible ?
is the solid core / non patch cable usually shielded too ?
Alex Fraser
> On 3 May, 20:35, Alex Fraser <m...@privacy.net> wrote:
>> alo wrote:
>>> What's the difference between a patch cable and a network cable? Is it
>>> just the length?
>> The term is variously used to mean "straight through" in contrast to
>> "crossover", or "flex" as opposed to "wire". I would say "patch" is an
>> application, not a characteristic of a network cable.
>>
>> A common application is between a wall-mounted socket and computer - for
>> which a short, straight through, flexible cable is ideal :).
>
> cable, the cable that goes within the walls(between patch panel and
> wall mounted socket), is solid core, thus less flexible ?
Yep. Same goes for eg mains wiring: the fixed installation is solid
cable, while flex (stranded cable) is used to go between sockets and
devices.
> is the solid core / non patch cable usually shielded too ?
I've only ever seen unshielded - but there is STP cable available, so
maybe some people use it.
Alex
Jaimie Vandenbergh
wrote:
I've used it in factory floor installations, to run from the shielded
cable conduit to freestanding computer-inna-shielded-box units.
Cheers - Jaimie
--
"Machines take me by surprise with great frequency." - Alan Turing
Gazwad
had his mind stolen by aliens; grooves on exhibitionistic sex acts with
tin-canned arse-farmer, tehee'd:
"Alex Fraser" <m...@privacy.net> wrote in message
news:ldGdnbx0acK0IoHV...@eclipse.net.uk...
> Alex Fraser wrote:
>> alo wrote:
>>> What's the difference between a patch cable and a network cable? Is it
>>> just the length?
>>
>> The term is variously used to mean "straight through" in contrast to
>> "crossover", or "flex" as opposed to "wire". I would say "patch" is an
>> application, not a characteristic of a network cable.
>
> Sorry, I should have noted that the application does imply one thing about
> the cable: it must have connectors on both ends.
Strewth!
--
Lunch was nice;
Had it whore's tit blisters accompanied by half-cooked lung on top of
thrown away limpet gumboil with cabbage dressing accompanied by marred
penis on top of crisped wolf intestine, dished up in a splashing bucket
heaped with burnt onion, hairy pieces of shark and sea snail, fruit
juice, a side of calf retina and a demitasse of dugong drool.
GB
"Jaimie Vandenbergh" <jai...@sometimes.sessile.org> wrote in message
news:tl2r14h7o3kaibvrj...@newsposting.sessile.org...
> to freestanding computer-inna-shielded-box units.
Possibly you should read less Terry Pratchett. ^.^
Derek
"GB" <NOTso...@microsoft.com> wrote in message
news:481d9d4b$0$10640$fa0f...@news.zen.co.uk...
Derek
*.( Admin Me Own Network)
Jaimie Vandenbergh
Hee hee! I might get a badge made up.
Cheers - Jaimie
--
If you own a jackhammer, every problem looks like hours of fun
ardll
> What's the difference between a patch cable and a network cable? Is it
> just the length?
A patch cable is effectively a network cable, it's called cat5 cable -
Cable and Telephone. Are you thinking about network cables and crossover
cables? those are different. Crossover cable is used to connect to PC's
directly to each other whereas cat5 is used in LAN's etc.
Jaimie Vandenbergh
>alo wrote:
>> What's the difference between a patch cable and a network cable? Is it
>> just the length?
>
>A patch cable is effectively a network cable, it's called cat5 cable -
>Cable and Telephone.
The "cat" in cat5 is short for Category, and refers to the
specification that describes the cable's behaviour. Strictly speaking
cat5 isn't recognised as a standard, but cat5e is.
But yes, nitpicking aside you're quite right - patch cables and
network cables are the same things. They are more likely to be called
patch cables when they're are linking ports at a patch panel, and more
likely to be called network cables when they're linking a computer to
a wall port or network switch.
>Are you thinking about network cables and crossover
>cables? those are different. Crossover cable is used to connect to PC's
>directly to each other whereas cat5 is used in LAN's etc.
Crossover network cables are rapidly becoming unnecessary, since
pretty much all new RJ45 network kit autoadapts the signalling to
whichever is needed. Which is nice.
Cheers - Jaimie
--
L33t 5p3@|< 1s f0R R3t4rds
ardll
knowing which cable to use) when building a LAN. That's great if RJ45
can adapt now. You learn somthing new everyday (or try to).
Cheers Jaimie.
Jim Howes
> "alo" <a...@btinternet.com> wrote in message
> news:of7p14lr6fmnj93g1...@4ax.com...
>> What's the difference between a patch cable and a network cable? Is it
>> just the length?
>
>
> Different terms for the same thing , though often misused to refer to
> other things as well
Indeed.
Perhaps the OP is thinking about crossover cables.
Depends on context.
All ethernet cables in structured networks are straight wired, i.e.
12345678
to
12345678
A crossover cable is designed to connect a DTE device to another DTE
device, or a DCE device to a DCE device. DTE devices being ethernet
cards, motherboards, routers, print servers, and DCE devices being hubs
and switches. Many routers blur the line between DCE and DTE, but
mostly these days, DCE stuff tends to have 'auto-crossover' ports which
will sense which way around your cable is and adjust accordingly.
A crossover cable in a structured network is just plain wrong (unless
appropriately documented), but how many home networks are properly
structured...?
'Crossover' simply connects the pairs used for transmit (on a DTE) to
the pairs used for transmit (on a DCE) so when connecting DTE to DTE or
DCE to DCE you end up with transmit connected to receive, and receive
connected to transmit. With a straight-wired cable, the pins used for
transmit on the DTE are the same as those used for receive on the DCE
and vice versa, so in a 'normal' network environment, with PC's, routers
and print servers connected to switches/hubs, everything works perfectly
well with straight wired cable.
A crossover cable is wired
12345678
to
36178245
and are instantly recognisable given that most connectors are
transparent, and the order of the cabling is different at both ends.
'Normal' order is
W/Or Or W/Gr Bl W/Bl Gr W/Br Br
'Crossover' order is
W/Gr Gr W/Or W/Br Br Or Bl W/Bl
(Gr=Green,Or=Orange,Bl=Blue,Br=Brown,W/?=White with ? bands)
I'd call 'em RJ45's except they're not, but that is another story
altogether. (Cue flame war)
Another difference is in the cable make-up.
'Patch cables' are typically stranded cable, designed for direct
insertion into 8/8 modular jack plugs. Premises wiring cable is
usually solid core cable, and should not generally be put into 8/8
modular jack plugs (although you can get away with it, it's not a good
idea because the connection will not be as good as with stranded cable).
Solid core premises-wiring cable should be hidden from view in
ducting, and terminated in proper IDC Krone/KATT/whatever IDC connection
blocks providing a nice, neat, socket on the wall for you to plug your
patch cable in to.
Stranded cable should not be used for premises wiring, mainly because it
doesn't stay in Krone/KATT/110 punchdown blocks at all well, as many a
network engineer will testify (getting it to stay in there for five
seconds is enough of a challenge, thank you very much, purchasing, for
buying the wrong cable because it was cheaper than the one I specified!)
(I could continue to rabbit, but it's time to go to bed, and I'm getting
up early in the morning)