dear
Two TPS23881 chips are arranged on a wire board, PSE adopts 4-pair wire output, and each PSE chip connects 4 RJ45 ports. The first PSE chip has an abnormal reading power level on ports 3 and 4(normal is Power 8, abnormal is 7) , the second PSE chip has an abnormal handshake connection on ports 1 and 2, and the second PSE chip has an abnormal reading power level on ports 3 and 4(normal is Power 8, abnormal is 7)
1, Chip U 1 port 3,4 read output power level exception. If ports 1-4 are connected first and then connected, then ports 3 and 4 will read power level parameter 3, ports 1 and 2 will read power parameter 11, then ports 3 and 4 have random read power level parameters of 10 or 3
2. Ports 1 and 2 of chip u 2 interfere with each other If you plug in Port 1 first, then port 2, then port 2 can not connect, and vice versa; if you plug in ports 1-4 first, then power on, then ports 1 and 2 May connect to one of them, or perhaps both ports can not be connected
any adivise？thanks in advance
attachment is about dataPOEconnect unormal problem.rar
