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Well it should be fine if it is really CAT5e - is that actually printed on
the cable anywhere? If so consider returning them to the store. On occasion tightly coiled cables or kinked cables will misbehave if they are near the quality limit anyway, but since these are only 4 feet long it seems very unlikely that fully uncoiling will make a difference... in any case that negates the purpose of it's being retractable doesn't it?  Category 5 cable is phone wire, it has 8 conductors twisted into 4 pairs. Your phone would use 1 pair (so you could run 4 separate lines down it) and your computer uses 2 pairs (So you could have two network connections down it). Normally only 4 conductors (two pairs) are used... but for runs where there's only a single cat5 and I need 2 network lines I use all 4 pairs and it works fine over even long distances - as long as it's good quality cable... which is where the "e" comes in. You cannot pick any 4 conductors from the 8 available you MUST use 2 pairs... and you must use the individual "Pair" appropriately, else you will lose the quality of the signals. The fact that the "Pair" is twisted together keeps interference out and stops that "Pair" interfering with another "Pair". If you use cheap crap phone wire or fail to use "Pairs" properly you will get exactly the problem you describe, and worse as the wire gets longer. So Cat3 is cheap ordinary 2 pair phone wire Cat5 is 4 pair phone wire Cat5e is "Enhanced" for networking The "e" simply indicates it's twisted for optimum performance. I just laid about 8000 feet of it at work with no problems at all so 4 feet of any old wire should not present a problem, either Jim is right and you have some really sensitive cards or else that wire is real junk. Charlie "asdf" <(E-Mail Removed)> wrote in message news:3ucuf.9025$(E-Mail Removed)... > connection is between computer and router. > the laptop in question is ibm thinkpad T30 with latest drivers. > inserting any other cable other than the retractable ones works just fine. > As I said we have two of those retractable cables and neither one of them > works. > The only way to make them work is to set adapter to 10mbit setting. > > "Jim" <(E-Mail Removed)> wrote in message > news:NDbuf.32704$(E-Mail Removed). .. >> asdf wrote on 1/1/2006 10:44 PM: >> > Have the following retractable cable from radioshack: >> > > http://www.radioshack.com/product/in...entPage=search >> > >> > Only works with my laptop when I choose 'Speed and Duplex' setting of > '10 >> > Mbit'. >> > When either 'Auto' or '100 Mbit' is chosen I can't even ping or get > address >> > from DHCP server. >> > >> > My understanding that all the networking cables were supposed to be the >> > same. But both of the >> > retractable cables that I have only work when 10mbit setting is chosen. > Am I >> > correct in diagnosing >> > the problem--that these retractable cables are in fact 10mbit only > cables. >> > Also are there any retractable cables >> > that are 10/100 mbit and will work on auto setting. >> > >> > I've tried the same computer with regular non-retractable cables and >> > the >> > connection works just fine. >> > >> > thank you very much. >> > >> > >> >> That is usually a problem with your network adapter and not the cable. >> Look for updated drivers to address the issue. >> >> If this is for surfing the Internet, 10Mbs is fine since your Internet >> connection is slower than that, unless you have the new Verizon FiOS. If >> you are transferring files between PCs, just buy a standard Cat5 cable. >> >> Jim > > |
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"Charlie Tame" <(E-Mail Removed)> wrote in message news:(E-Mail Removed)... > Well it should be fine if it is really CAT5e - is that actually printed on > the cable anywhere? If so consider returning them to the store. No on the box it just says 'high-performance' I took it to mean that it will work at 100mbit. > > On occasion tightly coiled cables or kinked cables will misbehave if they > are near the quality limit anyway, but since these are only 4 feet long it > seems very unlikely that fully uncoiling will make a difference... in any > case that negates the purpose of it's being retractable doesn't it? Just thought i should mention that the cable is flat and not round like the regular CAT5 cables. But i guess thats what you mean by 'uncoiled' > > Category 5 cable is phone wire, it has 8 conductors twisted into 4 pairs. > Your phone would use 1 pair (so you could run 4 separate lines down it) and > your computer uses 2 pairs (So you could have two network connections down > it). Normally only 4 conductors (two pairs) are used... but for runs where > there's only a single cat5 and I need 2 network lines I use all 4 pairs and > it works fine over even long distances - as long as it's good quality > cable... which is where the "e" comes in. > > You cannot pick any 4 conductors from the 8 available you MUST use 2 > pairs... and you must use the individual "Pair" appropriately, else you will > lose the quality of the signals. The fact that the "Pair" is twisted > together keeps interference out and stops that "Pair" interfering with > another "Pair". If you use cheap crap phone wire or fail to use "Pairs" > properly you will get exactly the problem you describe, and worse as the > wire gets longer. > > So Cat3 is cheap ordinary 2 pair phone wire > Cat5 is 4 pair phone wire > Cat5e is "Enhanced" for networking > > The "e" simply indicates it's twisted for optimum performance. > > I just laid about 8000 feet of it at work with no problems at all so 4 feet > of any old wire should not present a problem, either Jim is right and you > have some really sensitive cards or else that wire is real junk. > What bothers me about this is that i've tried 2 of these retractable cables. The other one not being from RadioShack. I tried them with several different PCs--one T30 laptop and another NetVista. I would definatelly suspect that the cable is the main culprit because i've never observed such a problem with any other wires. > Charlie thank you very much for responding |
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> Just thought i should mention that the cable is flat and not round like > the > regular > CAT5 cables. But i guess thats what you mean by 'uncoiled' > Ultimately it doesn't matter what the cable says or what type of wire was used. Only if it works. Even a bad (or badly installed) connector can reduce a 'cable' (system) from CAT5 quality to something less. (FYI since it is not your issue: Pulling too hard on cable while installing it is a great way to ruin it's ability to support high speeds also.) Find a cable that works. Use a rubber band, twist tie, or (my favorite) a velcro tie-wrap if it doesn't retract. -- Herb Martin, MCSE, MVP Accelerated MCSE http://www.LearnQuick.Com [phone number on web site] "asdf" <(E-Mail Removed)> wrote in message news:x%muf.239$(E-Mail Removed)... > > "Charlie Tame" <(E-Mail Removed)> wrote in message > news:(E-Mail Removed)... >> Well it should be fine if it is really CAT5e - is that actually printed >> on >> the cable anywhere? If so consider returning them to the store. > > No on the box it just says 'high-performance' I took it to mean that > it will work at 100mbit. > >> >> On occasion tightly coiled cables or kinked cables will misbehave if they >> are near the quality limit anyway, but since these are only 4 feet long >> it >> seems very unlikely that fully uncoiling will make a difference... in any >> case that negates the purpose of it's being retractable doesn't it? > > Just thought i should mention that the cable is flat and not round like > the > regular > CAT5 cables. But i guess thats what you mean by 'uncoiled' > >> >> Category 5 cable is phone wire, it has 8 conductors twisted into 4 pairs. >> Your phone would use 1 pair (so you could run 4 separate lines down it) > and >> your computer uses 2 pairs (So you could have two network connections >> down >> it). Normally only 4 conductors (two pairs) are used... but for runs >> where >> there's only a single cat5 and I need 2 network lines I use all 4 pairs > and >> it works fine over even long distances - as long as it's good quality >> cable... which is where the "e" comes in. >> >> You cannot pick any 4 conductors from the 8 available you MUST use 2 >> pairs... and you must use the individual "Pair" appropriately, else you > will >> lose the quality of the signals. The fact that the "Pair" is twisted >> together keeps interference out and stops that "Pair" interfering with >> another "Pair". If you use cheap crap phone wire or fail to use "Pairs" >> properly you will get exactly the problem you describe, and worse as the >> wire gets longer. >> >> So Cat3 is cheap ordinary 2 pair phone wire >> Cat5 is 4 pair phone wire >> Cat5e is "Enhanced" for networking >> >> The "e" simply indicates it's twisted for optimum performance. >> >> I just laid about 8000 feet of it at work with no problems at all so 4 > feet >> of any old wire should not present a problem, either Jim is right and you >> have some really sensitive cards or else that wire is real junk. >> > > What bothers me about this is that i've tried 2 of these retractable > cables. > The other one not being from RadioShack. I tried them with several > different > PCs--one T30 laptop and another NetVista. I would definatelly suspect that > the cable is the main culprit because i've never observed such a problem > with > any other wires. > >> Charlie > > thank you very much for responding > > |
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"asdf" <(E-Mail Removed)> wrote in message news:x%muf.239$(E-Mail Removed)...
> > "Charlie Tame" <(E-Mail Removed)> wrote in message > news:(E-Mail Removed)... > > Well it should be fine if it is really CAT5e - is that actually printed on > > the cable anywhere? If so consider returning them to the store. > > No on the box it just says 'high-performance' I took it to mean that > it will work at 100mbit. > no - just mean there is something worse around..... > > > > On occasion tightly coiled cables or kinked cables will misbehave if they > > are near the quality limit anyway, but since these are only 4 feet long it > > seems very unlikely that fully uncoiling will make a difference... in any > > case that negates the purpose of it's being retractable doesn't it? > > Just thought i should mention that the cable is flat and not round like the > regular > CAT5 cables. But i guess thats what you mean by 'uncoiled' No. Cat "more or less anything" needs to have twisted pairs to work. if it really is flat - ie. each wire sits in the jacket parallel to all the others, then it is probably something like "silver satin" patch leads. i have had cabling faults where a bit of silver sating used as a 2m patch lead has been the problem -although those are on fixed wiring with longer runs, it doesnt sound unreasonable for it only to work @ 10m > > > > > Category 5 cable is phone wire, it has 8 conductors twisted into 4 pairs. > > Your phone would use 1 pair (so you could run 4 separate lines down it) > and > > your computer uses 2 pairs (So you could have two network connections down > > it). Normally only 4 conductors (two pairs) are used... all 4 get used for Gigabit Ethernet. but for runs where > > there's only a single cat5 and I need 2 network lines I use all 4 pairs > and > > it works fine over even long distances - as long as it's good quality > > cable... which is where the "e" comes in. > > > > You cannot pick any 4 conductors from the 8 available you MUST use 2 > > pairs... and you must use the individual "Pair" appropriately, else you > will > > lose the quality of the signals. The fact that the "Pair" is twisted > > together keeps interference out and stops that "Pair" interfering with > > another "Pair". If you use cheap crap phone wire or fail to use "Pairs" > > properly you will get exactly the problem you describe, and worse as the > > wire gets longer. > > > > So Cat3 is cheap ordinary 2 pair phone wire phone wire (i.e. old BT stuff) is even lower quality. Cat 3 normally had 4 pairs on a PDS style fixed wiring system. > > Cat5 is 4 pair phone wire Cat 5 is actually fairly high spec - the spec gives frequency response and noise cancellation. It was the 1st twisted pair cabling standard actually intended to handle 100 Base-Tx Ethernet. > > Cat5e is "Enhanced" for networking > > > > The "e" simply indicates it's twisted for optimum performance. its just a bit better than Cat5. There are several "better" cable types around, although not many standards last time i checked, since there arent many copper connections at faster than Gigabit. doesnt stop cabling companies talking about Cat6 and Cat7 though.... > > > > I just laid about 8000 feet of it at work with no problems at all so 4 > feet > > of any old wire should not present a problem, either Jim is right and you > > have some really sensitive cards or else that wire is real junk. > > > > What bothers me about this is that i've tried 2 of these retractable cables. > The other one not being from RadioShack. I tried them with several different > PCs--one T30 laptop and another NetVista. I would definatelly suspect that > the cable is the main culprit because i've never observed such a problem > with > any other wires. stick to a cat5 lead. If wieght and tangles are a problem, buy a few and leave them in the various places you need a cable. > > > Charlie > > thank you very much for responding > -- Regards (E-Mail Removed) - replace xyz with ntl |
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