General discussion


Network Cables

By ksandy ·
What is the correct convention when crimping RJ45 Network Cables for an Ethernet network?

This conversation is currently closed to new comments.

6 total posts (Page 1 of 1)  
| Thread display: Collapse - | Expand +

All Comments

Collapse -

by tech_wiz03 In reply to Network Cables

goto my site for specs
(remove any spaces placed by techrepublic)

once there goto pc-medic/cables/network for the answers


Collapse -

by Mark In reply to Network Cables

The first answer is at

Be careful as the first information on the page is incorrect and will give you a cable with "crossed-pairs" that will only work on 10BaseT. Also the first crossed-pair diagram is for half-duplex only. The diagrams are useful, but use the ones at the bottom of the pages. The important thing to remember is that PCs use wires 1,2,3, and 6 for half-duplex and use these as well as 4,5,7, and 8 for full duplex. The color convention is usually 568-B or 568-A. Most use 568-B which when looking down thru the connector's flat side is orange-s, orange, green-s, blue, blue-s, green, brown-s, brown.

Usually you use a straight cable which is the same connection on both ends. If you need a cross-over cable, usually for connecting 2 PCs without a hub or switch, then switch the orange and green wire pairs at the other end as well as the blue and brown pairs if you need full-duplex. Think of the second PC recieving info from the orange pair on pins 3 and 6 and transmitting back to the first PC on the green pair on pins 1 and 2.

Also, the 569-A color scheme merely swaps the orange and green pairs.

Collapse -

by bohicam1 In reply to Network Cables

white orange
white green
white blue
white brown
This is for straight through cable
If you want to make a crossover cable, have the above on one end and on the other end switch 1 and 3, and switch 2 and 6
Good luck!


Collapse -

by wroming In reply to Network Cables

Answer #3 says it as simple as it can get.

Collapse -

by -Q-240248 In reply to Network Cables

Just wire it soa that the wires are the same on both ends. I usually use wh blue, blue, wh green green...etc. This is the standard straight-thru cables you use to plug in to a switch or hub. There are also patch pannel standard wiring at

Tech Forum:

Collapse -

by ksandy In reply to Network Cables

This question was closed by the author

Back to Networks Forum
6 total posts (Page 1 of 1)  

Related Discussions

Related Forums