MagJack selection wrong?

Question

Hi, I made a custom board for a RP2040 with a W5500. Both chips are working and are accessible, i.e. I can set a MAC and read it again. Unfortunately, the W5500 does not connect to the network and the status LED stay off. I think, that I was unlucky with my MagJack selection. Could someone look on my schematics? The CTs are connected and that is why I used the “reference design” for connected CTs. Just in case it is interesting, I was able to run with similar code the demo boards (pico + w5500 from ebay). I am happy to provide any further information if required. Best regards, Marius w55001004×712 11 KB

Eugeny · Answer

Wiring seems to be in accordance to this. But IMHO would be more correct using 009 type of MagJack.

ibuddy · Answer

Thanks. I agree, that the 009 parts are more similar-looking to the used jacks on the Wiznet boards, however, I do not understand the big difference. Unfortunately, I would like to use PoE. Do you know a working Magjack connector for the 5500 with PoE? Do you know, from the electrically/digital point of view, what makes the difference in the coil positions inside the magjack? Tomorrow I am going to try to connect a magjack from Wiznet board.

ibuddy · Answer

I was able to verify, that the w5500 is operating when connecting the ethernet jack from a wiznet board. I will make a new board and would like to ask you, if these two jacks would work with POE: WE 7499211125 WE_7499211125721×635 24.4 KB Abracon ARJP11A Thanks in advance.

ibuddy · Answer

Thanks, I’ll test it.

ibuddy · Answer

Just want to let all know, that my first MagJack selection was wrong. I can verify, that the Wuerth connector is operating, at least I can get an IP from a DHCP server. Thanks for your help!