The Unemployment Diary of an Embedded Engineer, Day 12: Ethernet Transformer Center Tap – Connect to Power or Ground?
Another colleague has encountered a problem. After receiving the prototype circuit board, they found that the Ethernet could not be pinged at all. While helping to check the circuit, I discovered a detail that 99% of people overlook: 🧐 The most feared thing when designing a PCB is this “Schrödinger’s Pin” — the center tap … Read more