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Home » Forums » Forum Archives » Networking and Internet Sharing » Topic # 777

network wiring
Joni Mar-26-01 08:58 PM
I would like to know how to make my own crossover cable.I understand it is simular to a patch cable, you have to cross the Rx and the Tx lines. Could anyone tell which lines I am looking for?

1. RE: network wiring
jeff Mar-27-01 03:20 AM
In response to message 0
I'll save Larry the trouble, http://www.duxcw.com/digest/Howto/network/cable/cable1.htm
Jeff

2. RE: network wiring
Joni Mar-27-01 04:23 AM
In response to message 1
Thanks Jeff, My next question is: if my uplink port on my hub is bad do I need to use a crossover cable from a working hub to the hub without the uplink port?

3. RE: network wiring
lbyard Mar-27-01 02:53 PM
In response to message 2
The uplink port may not be bad… Many hubs share the uplink port with port 1. You can’t have cables plugged into both at the same time. Connect the uplink port on the working hub to a normal port on the hub with the bad uplink with a straight-thru cable. A normal port crosses-over, an uplink port does not (although some have switches that can change from kind of port to the other). One connects a port that does not crossover, such as that on a network adapter in a PC, to a port that does crossover, such a normal port on hub, with a straight-thru cable. One connects two similar ports with a crossover cable. See the diagram at the top of http://duxcw.com/digest/Howto/network/cable/cable5.htm for a better understanding of this. Larry

4. RE: network wiring
Joni Mar-27-01 06:05 PM
In response to message 3
I am working with a hub to hub to hub.(if that makes any sense ) The first and middle hubs are working, 3rd hub is not. Straight cable from 2nd hub to 3rd hub was plugged into uplink,worked just fine till bad weather hit. I have green lights on everything except the uplink.
I have taken one end of the straight throu 568B cable and changed it to the crossover pattern.(from 2nd hub to 3rd hub) I have plugged the 568 end into the uplink port and pluged the crossover end into a port on a working hub. Still nothing. I have changed the cable type switch on the hub from srtaight to crossover. I have tried using a different port on the non-working hub. Still nothing.
I do appreciate your help. My training in this department is zilch. Low funds!!!

Joni


5. RE: network wiring
lbyard Mar-27-01 06:45 PM
In response to message 4
Try using the crossover cable two network two PCs that are currently working on your network. Larry

6. RE: network wiring
Joni Mar-27-01 07:02 PM
In response to message 5
Do I just plug the cable into each computer to see each other?

7. RE: network wiring
lbyard Mar-27-01 07:12 PM
In response to message 5
So you don't have possible Browse Master problems one of the PCs would preferrably be a server. I routinely do this to test crossover cables. Larry

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