Hi ,
I want to implement UPOE in my system.
My system supports 10Base T and 100Base Tx modes.
I referred different documents from TI and Cisco to implement UPOE using TPS2379.
But i have following query.
Configuration 1:
Unused pairs are connected directly to Rectifier bridge to extract power as per following.
Without using transformer.
Configuration 2:
Unused pairs are connected in same configurations as per used pairs.
Power is extracted using transformer from all 4 pairs.
Which topology should i use for my system?
Also how should i terminate unused pair at the other end of transformer (PHY Side)?
Thanks & Regards,
Jay Patel