Ethernet Cable Pinout

Ethernet Cable Pinout .CAT-5 Ethernet Cable Standards & Pin-out Assignments
Industry Standard CAT-5 Pin-out Assignment
Trango Power-over-Ethernet (PoE) Pin-out Assignment
Trango Cable: CBLDAT-1 Pin-out Assignment
How to Wire Your Own Cables
Industry Standard CAT-5 Pin-out
The images below depict the cable pin-outs for straight-through and cross-over Cat-5 Ethernet cables that conform to EIA/TIA industry standard for 568 A and B. IF the first and second pin are orange, the cable is 568B. If the first and second pins are green, the cable is 568A. If one end of the cable is A and the other end is B then you now have a cross-over.

CAT-5 Straight-through Cable Pin Assignments

CAT-5 Cross-over Cable Pin Assignments

Symptoms associated with incorrect wiring include:

No connectivity
Radio not negotiating correctly
Needing to be set to 10 Half Duplex (HDX) or 10 Full Duplex (FDX)
Connectivity to the radio only at a very short distance

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