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Help me make some cables
thlago Apr-26-02 11:50 AM
I need to make some cables and I still can't do it. I am following the HOW TO MAKE YOUR OWN CAT 5 TWISTED-PAIR NETWORK CABLES, but apparently I am still doing something wrong. After you strip off the outer jacket (1/2 in.)untwist the pairs and put them in 586a order. Place in RJ45 plug, with that plastic clip facing down and the enterance to the plug facing me. Check colors and crimp.

Does each individual cable have to be strip also?

It was not mentioned, so I didn't strip each one. I am assuming the contact is some how made in the plug once pushed all the way in and crimped. Also the plugs are designed for solid fastcat5e and that is the type of wire I am using. Any suggestions?

Thanks


1. RE: Help me make some cables
lbyard Apr-26-02 12:06 PM
In response to message 0
>Does each individual cable have to be strip also?

No. Do not strip the individual wires.

What is the problem? Why can’t you do it as described in the article? Larry


2. RE: Help me make some cables
thlago Apr-26-02 12:20 PM
In response to message 1
I tried to connect it from my computer to the switch, but I didn't receive a lan light on the switch. The network at home is already working. I am practicing making cables so I can network the office. The cables at home were bought as completed cables. I am trying to save so money and make them myself. I will try again. Maybe I didn't push the cable all the way in before I crimped.

3. RE: Help me make some cables
lbyard Apr-26-02 01:03 PM
In response to message 2
Yes, that is usually the problem. You may be able to see it by looking at the sides of the plug. If not, cut off and replace one of the plugs. That gives you a 50% chance of replacing the bad one (assuming the other one is OK). I have made many cables and do not have a 100% batting average. It takes practice… Larry

4. RE: Help me make some cables
thlago Apr-26-02 06:06 PM
In response to message 3
I tried replacing both plugs. I got it to work on one computer, but had to reduce the speed to half duplex under contol panel. I read that on someone's previous posting. I tried it on my other pc with netgear nic and it did not work. The light on the nic is on and so is the one on the switch. Don't these lights indicated that the cable is making a connection. I still can't get on the internet browse the network neighborhood. When I push in the cable, the wires basically go until it touches those gold contacts. Right? I will try again. If you notice something I am doing wrong, please comment. Also when I untwist the wires, it should be untwisted as little as possible. Just that half inch.

Thanks


5. RE: Help me make some cables
thlago Apr-26-02 06:39 PM
In response to message 4
LAST EDITED ON Apr-26-02 AT 06:41 PM (EST)
 
I just tried something else. I recrimped both ends sqeezing a little bit harder. I know in your guide you say crimp once, but I just tried it. DSL speed test 1250 down and 325 up. That's normal for me. I will try one more cable and if successful then the office.
I did have a couple of questions in the above reply. Please answer them when you get a chance. Also how much pressure should I apply when crimpping? The guide only says the wire should not come out when pulled on (not to hard).

Thanks.


6. RE: Help me make some cables
Twinhead Apr-27-02 05:04 AM
In response to message 5
For the crimping i can tell you this:

If a crimptool has a system that releases the crimp, you are shure that the crimppressure is correct.
The mechanism will release only when the needed pressure is met.

Other (Cheaper) types does not have such systems.
These have to be closed all the way until you feel it cannot go further.
There might be a firm pressure needed there!
Hold it tight for about a second prior to release again.

Victor


9. RE: Help me make some cables
lbyard Apr-27-02 01:44 PM
In response to message 6
I have been using the same crimper for many years... By crimp once, I was referring to the fact that the picture at http://duxcw.com/digest/Howto/network/cable/cable8.htm is animated and repeats over and over again. It won't hurt to give it an extra crimp. I have to squeeze the crimper I have with just about all of the strength in my hands. You should not be able to pull a good crimp apart with your bare hands (or at least I can't), but I would not apply quite that much stretch anyway as it probably would exceed the 25 LBS maximum tension allowed. Larry

>Don't these lights indicated that the cable is making a connection.

Yes, but they do not guarantee the cable is made correctly and with the right materials, and that it will operate at Ethernet frequencies. Read http://duxcw.com/faq/network/slownet.htm and the FAQs it references. If the cables at work are short, consider using manufactured cables.

>I still can't get on the Internet browse the network neighborhood. When I push in the cable, the wires basically go until it touches those gold contacts. Right?

The ends of the cables should go to the very end of the plug as shown at http://duxcw.com/digest/Howto/network/cable/cable8.htm. The contacts vary by the kind, make, and model of plug. Larry


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