10 base connection to 100 base connection

August 28, 2009 at 10:34:15
Specs: Windows XP
Hey guys I have two computers hooked up 100 base connection to my router and they work great. I"m trying to hook up a computer using only 4 wires so its a 10 base connection and when I try it says network cord unpluged. The router is 10/100 and the network cards are all 10/100. I'm using pins 1,2,3 and 6 in Parallel. I have only 4 wires hooked to a network jack the only thing i can think of is maybe I need to make a network end using only 4 wires? but i dont see how that would matter.

Any help would be most appreciated


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#1
August 28, 2009 at 10:57:49

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#2
August 28, 2009 at 11:09:17
Thanks MWCC

Read that entire webpage and im wiring to that site
but that doesnt solve my problem
like I said
im using pins 1 2 3 and 6 straight through.
and it shows network cord unpluged.


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#3
August 28, 2009 at 13:40:23
following this diagram for both cable and ports the cable plugs into?

Pin No. strand color Name
1 white and orange TX+
2 orange TX-
3 white and green RX+
4 NC *
5 NC *
6 green RX-
7 NC *
8 NC *


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Related Solutions

#4
August 28, 2009 at 13:58:10
If the the 1-2 and 3-6 are not twited together then you will get interference and unbalanced signals. Why are you trying to use only 4 wires? Are you using CAT 5 cable?

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#5
August 28, 2009 at 15:03:28
Just FYI, with 2 pair (ie: 4 wires) you can get 100 Mbps.

Read that entire webpage and im wiring to that site
but that doesnt solve my problem like I said im using pins 1 2 3 and 6 straight through. and it shows network cord unpluged.

Then you're not punching the wires correctly. I looked over that web page and all the info you need is there. The numerical designations 1, 2, 3, 6 denote which wires to use and where in the RJ-45 to use them. You've likely made at mistake at one end or the other.


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#6
August 28, 2009 at 15:19:08
which is why I included the COLOR code which helps id which wire is which.

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#7
August 28, 2009 at 16:42:34
thanks guys.

I took a working network CAT5 cable cut the end on it and pluged one end into the router and used pins 1,2,3 and 6 and connected to the same pins to this network jack that I own. then took another working cat5 cable from the jack to the computer and it shows network cable unpluged.

Keep in mind I wire cable all the time with 0 problems when I hook all 8 wires up. Also the cable is of coruse twisted pairs.

I"m trying to give the machine shop that we own network connection from the house and there are 4 untwisted wires going from the house to the shop and when I hooked it up it said network unpluged. So thats when i went back into the house and just tried hooking up a computer right next to the wire using 4 wires and still did the same thing.


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#8
August 28, 2009 at 16:43:52
Also ya i did read that you can get 100mbs with 4 pairs. Read 12 websites they all say the same information as the website you guys gave me. So pretty much i can make it work with 8 wires but not 4

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#9
August 28, 2009 at 17:23:23
using only 4 wires so its a 10 base connection ?????

Are you mixing gig and 100base? 10base and 100base are the same.

Unless it is an old device you almost have to force a 10base speed.

Playing to the angels
Les Paul (1915-2009)


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#10
August 28, 2009 at 17:37:54
the router and the network card are both 10/100

its a D-link DI-624M router. Its all auto sensing too.
still though it gives a network unplug as if its not wired right.

but ya i took a computer only 2 feet from the router and made up a wire using pins 1 2 3 6 and it gives the network cord is unplug. I have two machiens working on this router right now just fine 0 problems at 100mbps


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#11
August 28, 2009 at 17:39:33
I forgot to mention that I really do appreciate everyones responces so far.

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#12
August 29, 2009 at 03:45:46
If the pairs are not twisted it probably wont work. UTP - unshielded twisted pair. The twist perform an electrical function - capacitance and characteristic impedance.

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#13
August 29, 2009 at 06:06:10
I took a working network CAT5 cable cut the end on it and pluged one end into the router and used pins 1,2,3 and 6 and connected to the same pins to this network jack that I own. then took another working cat5 cable from the jack to the computer and it shows network cable unpluged.

This may be a stupid question but, if you have a 4 pair, Cat5 cable, why are you trying to use only 2 pairs (4 wires)? Are you trying to make 2 connections out of one cable? If you don't have to, don't, use all 4 pairs.

but ya i took a computer only 2 feet from the router and made up a wire using pins 1 2 3 6 and it gives the network cord is unplug. I have two machiens working on this router right now just fine 0 problems at 100mbps

All I can tell you is you have to be wiring it wrong if this is still happening. I've done 2 pair connections when using 25 and/or 50 pair Cat5e cable (typically used for telephones) and also made a number of patch cables this way and I've never had a problem.


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