How do I create a loopback cable?
I have tested this cable only up to 100Mb. I do not know if this will work on a 1000Mb Nic. Use at your own risk.
Step 2. Leave approximately 1/2 inch at end and start twisting, very tightly.
Note: If your fingers start to hurt, you may want to use a tool to help with the twisting. Notice how tightly wound the cable is. If the twists are not close enough the loopback will not work. Please twist to match picture.
Step 3. After twisting is done, fold cable and line up the ends. Cut if you must to line up cables. Line up the cables so that the cables are in the proper alignment to prepare for insertion into RJ-45 end.
Step 4: Insert cable into RJ-45 end. (do not crimp yet.) Remember, 1236 pins.
Step 5. Insert plastic tubing over the wire and into the RJ-45 end. Now crimp the end with a crimping tool.
Note: When you first plug in the loopback cable, wait approximately 10 seconds to get a link light. No more carrying around a hub just to get a link light.
By Efrain Ortiz
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