Arduino Uno as portable SFP DDM/DOM reader?

Projects General Guidance
1

Hello forum members!
I will try to connect a SFP to a Arduino Uno to be able to read out the SFP DDM/DOM information from a SFP.

I have read about the sfpddm project by SloMusti (GitHub - SloMusti/sfpddm: Arduino library for interfacing SFP modules and reading DDM information as per SFF-8472) but I want to be able to power the SFP module without the converter. After reading the pinout (Small Form-factor Pluggable - Wikipedia) I does not look impossible to make it work. Anybody with experience how want to share?

First problem is to power the SFP, which pins need power? I only need the reciever part to work.

Thanks!

Best regards, Thomas

2

I would guess that providing 3.3V power on pin 15 "VccR: Receiver power (3.3 v)" and Ground on pins 9, 10, 11, and 14 "VeeR: Receiver ground" would power the receiver.

3

Thanks, I will try to de-solder a sfp socket tonight (tricky?) and try to power it up according to johnwasser´s tip. I will post my findings (if any) here ...

Br, Thomas