Cat 5 limits
 

I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve

Cat 5 limits
 

On 2/2/2012 3:05 PM, Steve B wrote:
I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve



Attenuation (supposedly) happens at 100 Meters. Your 150' run should be
just fine.

Cat 5 limits
 

"tnik" wrote in message ...
On 2/2/2012 3:05 PM, Steve B wrote:
I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve



Attenuation (supposedly) happens at 100 Meters. Your 150' run should be
just fine.

I'm slightly over 300ft and there's slight to considerable degradation unless I terminate with a commercial grade hub at both ends of the run, probably because most PC network cards are kind of whimpy.

Plenty of commercial grade hubs still available on ebay though, and for dirt cheap last time I checked--the one I'm using down here is a bay networks 24 port which I purchased second hand and it has been running pretty much continuiously for going on 13 years now.

FWIW, you only need two pairs for cat5...so the other two can be used for an alarm system or for telephony if you have land line etc.

Cat 5 limits
 

Steve B Inscribed thus:

I want to run a hard line Cat 5 out to my shop. It will be inside
PVC. What is the limits of length of Cat 5 before you start running
into
problems? I'd estimate it at 150' run.

Steve

305ft/100mt

--
Best Regards:
Baron.

Cat 5 limits
 

Steve - use CAT 6. It is shielded and an improved 5. I have 100'
string of it from one end of the house to the other and it is running
a high speed High Def screen with a gaming program that is extensive.

I got 100 blue cat 6 solid plenum patch cable - the plenum means it has
a hard wire wrap and then covered. The hard wire allows it to be drawn
through hard to pull points or rubbing on a surface...

I bought mine from DeepSurplus.com They ship Fed-Ex 2-day if you want.
I put a 50' length between our offices - 100Mbps on wire.

I just mentioned the place I got it. - Out near Gunner. Laguna Niguel,
CA.

We are backing off wireless over the house - still to printers and shop.

The kitchen did nasty stuff to wireless. I have a switcher-microwave
that drops 802.11A,B,G,N out of the air. Cell phone also.

Martin


On 2/2/2012 2:05 PM, Steve B wrote:
I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve

Cat 5 limits
 

Is there electric power half way ? or 1/3...

Run out to that point - put in a switcher - and have
the switcher drive the other half.

Martin

On 2/2/2012 2:05 PM, Steve B wrote:
I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve

Cat 5 limits
 

Martin Eastburn wrote:

Is there electric power half way ? or 1/3...

Run out to that point - put in a switcher - and have
the switcher drive the other half.

Why on earth would you put a switch halfway when the total run is only
1/2 the max length spec for 100Mbit Ethernet on cat 5 cable (100m)???

Cat 5 limits
 

"Pete C." wrote

Why on earth would you put a switch halfway when the total run is only
1/2 the max length spec for 100Mbit Ethernet on cat 5 cable (100m)???

For other installations there is this:
http://www.ethernetextender.com/ethe...xtension-kits/

Power over Ethernet runs 48V (like a telephone, but more current) down the
cable to power remote devices. The availability of commercial hardware means
it could be useful for home surveillance and alternate energy systems,
though noncompliant devices could be damaged if you don't observe the rather
complex standards. I worked on its R&D.
http://en.wikipedia.org/wiki/Power_over_Ethernet

jsw

Cat 5 limits
 

When the earth rolls on top of you and the driver
isn't up to spec as it should be. Maybe marginal.

That is why or maybe he wants to put on on the far end
to detect and fan-out for more than one connection.

Martin

On 2/3/2012 7:35 AM, Pete C. wrote:

Martin Eastburn wrote:

Is there electric power half way ? or 1/3...

Run out to that point - put in a switcher - and have
the switcher drive the other half.

Why on earth would you put a switch halfway when the total run is only
1/2 the max length spec for 100Mbit Ethernet on cat 5 cable (100m)???

Cat 5 limits
 

"Steve B" wrote in message
.. .
I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve

Like others have said, you are supposed to be able to be able to run cat 5
cable up to 100 meters. At work we have over 60 acres under roof, for long
network runs they have boxes that have a Cat 5 RJ-45 connection plus a fiber
optic connection, a box like that on each end of the fiber optic gets
plugged into the network with cat 5 cables. You probably wouldn't need
anything like that but if you found the equipment (2 cat 5 to fiber optic
converters and fiber optic network cable) cheap on ebay or something, it
would give you a quality connection.

RogerN

Cat 5 limits
 

On Thu, 2 Feb 2012 12:05:30 -0800, "Steve B" wrote:

I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve

Bit late to your query, but i've done this exact thing with a slighly
longer run. I did put a powered hub at both ends.

No problems at all in about five year's use.

Karl

Cat 5 limits
 

On 2/5/2012 8:08 AM, Karl Townsend wrote:
On Thu, 2 Feb 2012 12:05:30 -0800, "Steve wrote:

I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve


The only time I've had a problem with CAT 5 at this length is across our
shop where we're running 2 4kilowatt and one kilowatt LASERs. Lots of
RFI, so I used shielded cable.

David

Cat 5 limits
 

Cat 6 is what is needed in shielding area. Look it up - it is upgraded.
I added the plenum spec to have a hard wire wrapped and a hard shield
over it. That allows pulling it without snagging it on connectors and
tearing the impedance out of the wire :-)

Martin

On 2/5/2012 2:23 PM, David R. Birch wrote:
On 2/5/2012 8:08 AM, Karl Townsend wrote:
On Thu, 2 Feb 2012 12:05:30 -0800, "Steve wrote:

I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve


The only time I've had a problem with CAT 5 at this length is across our
shop where we're running 2 4kilowatt and one kilowatt LASERs. Lots of
RFI, so I used shielded cable.

David

Cat 5 limits
 

In article ,
says...

Cat 6 is what is needed in shielding area. Look it up - it is upgraded.
I added the plenum spec to have a hard wire wrapped and a hard shield
over it. That allows pulling it without snagging it on connectors and
tearing the impedance out of the wire :-)

Martin, there is nothing in the CAT6 or 6A standards that requires a
shield. If you need shielded cable then you use shielded cable. If you
need CAT6 you use CAT6. If you need shielded CAT6 then you use shielded
CAT6.

And when you tell people to "look it up" and don't provide a link you're
being a smartass, not being helpful.

However you may have been duped. Prior to the release of an official
definition of Category 6, many cable manufacturers were selling "CAT6"
cables that met no accepted standard other than CAT5E, and some of those
were shielded.

If you are running 1000BASE-T or less, you need Category 5E. This can
be shielded or unshielded. As long as the installed cable meets the
standard you will get the specified performance, and if the installed
cable doesn't test to standard then odds are that it's an installation
problem that would also degrade the peformance of CAT6 or 6A to the same
level.

If you are running 10G-BASE-T you can get 55 meters out of CAT6 cable or
100 meters out of 6A. Again this can be shielded or unshielded.

You should in general not run plenum cable unless it is required by
code. The jacket is stiffer and it is more difficult to pull--you are
making work for yourself.

And the presence of a steel reinforcing cable is not to allow harder
pulls--if you're pulling harder than accepted installation guidelines
allow odds are that you're kinking the cable, which will degrade it
below spec. The steel reinforcing cable is intended to allow a run to
be suspended.

As for "tearing the impedence out of the wire", impdence is only one of
the specifications that a cable needs to meet to be certified CAT6A.
There's a whole long list and you have to run a $6000 tester on the
cable if you want to be sure that it meets all of them.

The general rule for twisted pair cable is that you don't want to pull
harder than 25 pounds. If you need more than that then the solution is
not to get a bigger hammer, it's to find out what the cable is hung up
on and fix it.

It will certainly do no harm (other than to the budget) to run CAT6A
where CAT5E will suffice, but there's no real purpose served by it
either.

And I would avoid CAT6--it won't run 10G for its full allowed span and
doesn't run 1G any better than 5E so it's wasted money. Go with 5E or
6A.

Also, shielded cable is not a panacea. If the shield is improperly
bonded and terminated then it can introduce noise levels far beyond
anything that unshielded cable is likely to pick up in most
environments.

The current standard (EIA/TIA-568-C) can be obtained from TIA
http://www.tiaonline.org/standards/buy-tia-standards. It's not cheap.




Martin

On 2/5/2012 2:23 PM, David R. Birch wrote:
On 2/5/2012 8:08 AM, Karl Townsend wrote:
On Thu, 2 Feb 2012 12:05:30 -0800, "Steve wrote:

I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve


The only time I've had a problem with CAT 5 at this length is across our
shop where we're running 2 4kilowatt and one kilowatt LASERs. Lots of
RFI, so I used shielded cable.

David

Cat 5 limits
 

I don't think 300' of shielded Cat6 (or the unshielded at ?price?)
for the price of $34 and is color coded with connectors is high.
100' lengths are less than $14 when colored in a number of colors
and has connectors.

If you were wiring a hotel - yes it would be and you would be using
reels anyway.

One buys the Giga internet cable wire since it contains a better noise
margin. Cat 4 might work but might be flaky.

I strung plenum wire - contains a shield foil with a wire coil wrapping
that protects the inner insulation and wires.

I'd rather have noise margin than no internet when a welder kicked off
or a microwave transmitter begins to transfer data.

Our switcher Microwave in the kitchen blanks out Wi-Fi across the band
of 16 channels. Must be an RF leak of the switcher.

Martin

On 2/15/2012 8:45 AM, J. Clarke wrote:
In ,
says...

Cat 6 is what is needed in shielding area. Look it up - it is upgraded.
I added the plenum spec to have a hard wire wrapped and a hard shield
over it. That allows pulling it without snagging it on connectors and
tearing the impedance out of the wire :-)

Martin, there is nothing in the CAT6 or 6A standards that requires a
shield. If you need shielded cable then you use shielded cable. If you
need CAT6 you use CAT6. If you need shielded CAT6 then you use shielded
CAT6.

And when you tell people to "look it up" and don't provide a link you're
being a smartass, not being helpful.

However you may have been duped. Prior to the release of an official
definition of Category 6, many cable manufacturers were selling "CAT6"
cables that met no accepted standard other than CAT5E, and some of those
were shielded.

If you are running 1000BASE-T or less, you need Category 5E. This can
be shielded or unshielded. As long as the installed cable meets the
standard you will get the specified performance, and if the installed
cable doesn't test to standard then odds are that it's an installation
problem that would also degrade the peformance of CAT6 or 6A to the same
level.

If you are running 10G-BASE-T you can get 55 meters out of CAT6 cable or
100 meters out of 6A. Again this can be shielded or unshielded.

You should in general not run plenum cable unless it is required by
code. The jacket is stiffer and it is more difficult to pull--you are
making work for yourself.

And the presence of a steel reinforcing cable is not to allow harder
pulls--if you're pulling harder than accepted installation guidelines
allow odds are that you're kinking the cable, which will degrade it
below spec. The steel reinforcing cable is intended to allow a run to
be suspended.

As for "tearing the impedence out of the wire", impdence is only one of
the specifications that a cable needs to meet to be certified CAT6A.
There's a whole long list and you have to run a $6000 tester on the
cable if you want to be sure that it meets all of them.

The general rule for twisted pair cable is that you don't want to pull
harder than 25 pounds. If you need more than that then the solution is
not to get a bigger hammer, it's to find out what the cable is hung up
on and fix it.

It will certainly do no harm (other than to the budget) to run CAT6A
where CAT5E will suffice, but there's no real purpose served by it
either.

And I would avoid CAT6--it won't run 10G for its full allowed span and
doesn't run 1G any better than 5E so it's wasted money. Go with 5E or
6A.

Also, shielded cable is not a panacea. If the shield is improperly
bonded and terminated then it can introduce noise levels far beyond
anything that unshielded cable is likely to pick up in most
environments.

The current standard (EIA/TIA-568-C) can be obtained from TIA
http://www.tiaonline.org/standards/buy-tia-standards. It's not cheap.




Martin

On 2/5/2012 2:23 PM, David R. Birch wrote:
On 2/5/2012 8:08 AM, Karl Townsend wrote:
On Thu, 2 Feb 2012 12:05:30 -0800, "Steve wrote:

I want to run a hard line Cat 5 out to my shop. It will be inside PVC.
What is the limits of length of Cat 5 before you start running into
problems? I'd estimate it at 150' run.

Steve


The only time I've had a problem with CAT 5 at this length is across our
shop where we're running 2 4kilowatt and one kilowatt LASERs. Lots of
RFI, so I used shielded cable.

David

Cat 5 limits
 

Martin Eastburn wrote:

Our switcher Microwave in the kitchen blanks out Wi-Fi across the band
of 16 channels. Must be an RF leak of the switcher.


It must be that the cheap switcher is modulating the Magnetron, which
operates in the 2.4 GHz band.


--
You can't have a sense of humor, if you have no sense.