H3C Technologies H3C SR6600-X - Manual (Page 31)

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Table 7 Straight-through cable pinouts
Pinout No. A B
1 Orange/white Orange/white
2 Orange Orange
3 Green/white Green/white
4 Blue Blue
5 Blue/white Blue/white
6 Green Green
7 Brown/white Brown/white
8 Brown Brown
Table 8 Crossover cable pinouts
Pinout No. A B
1 Orange/white Green/white
2 Orange Green
3 Green/white Orange/white
4 Blue Blue
5 Blue/white Blue/white
6 Green Orange
7 Brown/white Brown/white
8 Brown Brown
NOTE:
Strictly follow the pinouts in the above tables when identifying or making the two types of Ethernet cables;
otherwise, the communication quality may be affected.
Making an Ethernet cable
To make an Ethernet twisted pair cable:
1. Cut the cable to a proper length with the crimping pliers.
2. Strip off an appropriate length of the cable sheath. The length is typically that of the RJ-45
connector.
3. Untwist the pairs so that they can lay flat, and arrange the colored wires based on the wiring
specifications.
4. Cut the top of the wires even with one another. Insert the wires into the RJ-45 end and make sure
the wires extend to the front of the RJ-45 end and make good contact with the metal contacts in the
RJ-45 end and in the correct order.
5. Crimp the RJ-45 connector with the crimping pliers until you hear a click.
6. Use a cable tester to verify the proper connectivity of the cable.