Whats the greatest distance between 2 computers?

[Cybordolphin]

How many feet of CAT5 cable can you run between a router and a computer.... before you need a repeater or something? I need to run approx. 150-200 ft.

Thanks to anyone who knows.

 

[JavaMomma]

Its been a year since my networking class...
I think it was 100 meters
How many feet in a meter?? I dont know, I would guess about 3ish.

 

[Nessal]

How does it effect performance and by how much?

 

[Windogg]

1 meter ~ 1 yard

 

[Macro2]

RE:"How many feet of CAT5 cable can you run between a router and a computer.... before you need a repeater or something? I need to run approx. 150-200 ft."

10 baseT = 100 meters = over 300 feet. So you should be fine.

over that you'll need a repeater of powered hub. They are cheap.

RE:"How does it effect performance and by how much?"

Loss of signal strength over distance is called attenuation. Too much voltage drop and the 0's and 1's (binary) becomes indistinguishable to the node. A repeater is needed or powered hub is needed to pump it back up. It's not like the signal drops off the earth at 100 meters. That distance is really by convention. External factors can also determine noise which can screw up the signal. Like magnetic fields, electric motors, florescent lights etc.
Fiber can go 2000 or 3000 meters depending if it's multi or single mode, btw.

 

[Cybordolphin]

What about running along a roof outside? Any special cable to consider? Is CAT5 going to hold up under the weather? Should I go with high temp Plenum type CAT5 cable for its durability?

And.... what about using CAT6 cable? Does that use the same Keystone jacks? Or different jacks?


Thanks for all the help!

 

[Windogg]

High temp plenium simply means it won't give off toxic smoke when burned. Its not needed.

CAT6 is not an official standard. Your standard CAT5e from Home Depot will do just fine.

Windogg

 

[Chartec]

I thought this might help. About half way down this link it shows the order the wires should be connected. I have made this mastake before, this should be followed. good luck

Pinouts for cat5

 

[Cybordolphin]

I am finding there is indeed outdoor CAT5. The normal CAT5 deteriorates rather quickly when exposed to UV.

 

[AndrewR]

Whats the greatest distance between 2 computers?

Am I the only one thinking, "A really squiggly line", as in opposite of shortest distance between two points?

 

[Information21]

Originally posted by: AndrewR
Whats the greatest distance between 2 computers?

Am I the only one thinking, "A really squiggly line", as in opposite of shortest distance between two points?

I'm thinking squiglies with some zig zags and a whole bunch of loops.

 

[WileCoyote]

cybordolphin -

I've had cat5 cable running from out of 2nd story window into 1st story window for 7 years now without any problems. the gray color is a bit faded but otherwise there is no damage.

 

[Cerb]

There's a LAN here to my neighbor's house. Between 400 and 450ft (not certain the exact length due it being patched through a few hubs in this house before it gets to the one long piece) of cat5e in PVC pipe (the neighbor in between has no idea what's under the leaves in her back yard! ), and no repeater. Gets about 90% of the 10BaseT performance in Sandra, and otherwise seems to work just fine.

In addition, as WileCoyote noted, having cat5 sitting outside doesn't really hurt it. There's a been one on the driveway here for the truck's MP3 player (P166MMX w/ 16MB (or is it 32?) RAM and a whopping 4GB HD), and aside from it being connected to the player one time when we were out of milk...but that has nothing to do with weathering.

 

[JamesM3M5]

Originally posted by: Macro2
RE:"How many feet of CAT5 cable can you run between a router and a computer.... before you need a repeater or something? I need to run approx. 150-200 ft."

10 baseT = 100 meters = over 300 feet. So you should be fine.

over that you'll need a repeater of powered hub. They are cheap.

RE:"How does it effect performance and by how much?"

Loss of signal strength over distance is called attenuation. Too much voltage drop and the 0's and 1's (binary) becomes indistinguishable to the node. A repeater is needed or powered hub is needed to pump it back up. It's not like the signal drops off the earth at 100 meters. That distance is really by convention. External factors can also determine noise which can screw up the signal. Like magnetic fields, electric motors, florescent lights etc.
Fiber can go 2000 or 3000 meters depending if it's multi or single mode, btw.

Good info.

Ethernet can run 10Mb half-duplex up to 3 miles on fiber. If you go longer than 3 miles you get late collisions, which really screw up your data and throughput. Over 3 miles you need to run full duplex. 100M and Gig-E should always be set to full duplex.

 

[thorin]

"Whats the greatest distance between 2 computers?"

Heh....funny how that question doesn't really portray what your thread is about. But since I dug up my answer based on the thread subject you get to read it anyway.

The furthest manmade object (with a computer) in the galaxy is Voyager 1.

As of Jan 1 2001 it was 12 Billion Km (80 AU) from the sun, travelling at ~3.6 AU/yr. Therefore it is now ~87.2 AU from the sun (~86.2 from earth) or 12.3Billion Km from the sun (12.15 from earth).

Thorin

 

[Ilmater]

Originally posted by: Macro2
10 baseT = 100 meters = over 300 feet. So you should be fine.

What kind of geeks are you people? Length converters are all over the internet. It took me all of 3 second to find this. Just in case you'd like to know, 1 Meters = 3.28100 Feet.

 

[Macro2]

RE:"What kind of geeks are you people? Length converters are all over the internet. It took me all of 3 second to find this. Just in case you'd like to know, 1 Meters = 3.28100 feet.

Just a CCNP.
The dude only wanted to know if he could go 250 feet. So why should I bother?
Glad you looked it up though.

Mac

 

[JamesM3M5]

Originally posted by: thorin
"Whats the greatest distance between 2 computers?"

Heh....funny how that question doesn't really portray what your thread is about. But since I dug up my answer based on the thread subject you get to read it anyway.

The furthest manmade object (with a computer) in the galaxy is Voyager 1.

As of Jan 1 2001 it was 12 Billion Km (80 AU) from the sun, travelling at ~3.6 AU/yr. Therefore it is now ~87.2 AU from the sun (~86.2 from earth) or 12.3Billion Km from the sun (12.15 from earth).

Just curious, when was the last time we were able to contact V1?

 

[thorin]

Originally posted by: JamesM3M5

Originally posted by: thorin
"Whats the greatest distance between 2 computers?"

Heh....funny how that question doesn't really portray what your thread is about. But since I dug up my answer based on the thread subject you get to read it anyway.

The furthest manmade object (with a computer) in the galaxy is Voyager 1.

As of Jan 1 2001 it was 12 Billion Km (80 AU) from the sun, travelling at ~3.6 AU/yr. Therefore it is now ~87.2 AU from the sun (~86.2 from earth) or 12.3Billion Km from the sun (12.15 from earth).

Just curious, when was the last time we were able to contact V1?

From what I've read they're still getting data back from it, it just passed it's 25year anniversary (Sep 5). I'll dig up some linkage for ya.


Edit: Linkage > Voyager 25 Yrs @ The Planetary Society Check out the timeline (it spans a few pages but is a good read).

Thorin

 

[Cogman]

if im not too confused, I belive that it was actually 200 m, not 100. Just took the class. Also know this, because our school is about this length, and we have cat5's running from end to end (its about 150+m)

 

[Macro2]

Page 185, Cisco 1st year companion guide.
Maximum segment length, 10baseT or 10baseTX = 100 meters.
There is no cable that as a maximum segment length of 200 meters.
You could be thinking of 10base2 (thin-net RG-58 coax) where 2 is the maximum cable length in hundreds but it's not 200 meters it's 185 meters or 10base5 (thicknet RG-8 or RG-11 Coax) where the maximum is 500 meters. OTOH, I doubt it because you ought to be able tell coax from UTP.
If you are running over 100 meters you either are boosting the signal via a repeater or powered hub or are just lucky.

Mac

 

[WebDude]

Originally posted by: thorin From what I've read they're still getting data back from it, it just passed it's 25year anniversary (Sep 5). I'll dig up some linkage for ya.
Thorin

Well, if it's got a 25 year warranty on it, you can be sure it'll be failing any day now.

WebDude

 

[Macro2]

RE:"Well, if it's got a 25 year warranty on it, you can be sure it'll be failing any day now."

I wonder if the paint has worn off yet to where it says V GER?

Let's see if anyone gets that one...lol

 

[thorin]

Actually it wasn't worn off it was carbon buildup or something similar that was over top of the writting. Because remember he rubs it off with his sleve.

Thorin

 

[Macro2]

Thorin,
I wonder if anyone else knows what we are talking about?

Mac