How to Make a Network Card Loopback Plug
Download this free PDF document from the link below.
The following configuration should be followed to successfully create a Network Card Loopback plug. The purpose for creating this plug is to test if a NIC port is properly working, or not. The NIC card port to be tested must be equipped with a green ON indicator light for visual feedback.
- Starting with an RJ45 module and 6-8 inches on CAT5 cable, strip the wires and insert the wires into the module. Crimp.
Or you can use a CAT5 cable with the connector already attached.
- Strip the exposed cable end of the CAT5 cable (end without the jack), connecting pin wire #1 to pin wire #3.
- Then connect pin wire #2 to pin wire #6.
- Tape the exposed wire ends so they're not exposed.
- Plug the jack into the NIC port and you should receive a GREEN light if the port is good, or ORANGE (or no light) if the port is bad.
Download PDF document network card loopback