CCS/TPS23880: Is TPS23880PSE Port Independent?

Hi Fubo Ke!

Per the IEEE802.3bt standard, a 4-pair RJ45 port is powered by 2 channels of the PSE. If you configure a port for 4-pair operation, the 2 channels assigned to that port will operate together. However, each port should be independent of the other. What do you mean by "can't bring a BT and an AT at the same time"? Both 2-pair (1 channel) and 4-pair (2 channel) ports fall under the umbrella of the .BT standard.

A good video for a quick introduction to the new standards and how it changed the PoE landscape can be found here --> https://training.ti.com/ieee8023bt-new-features?cu=1136425

If you prefer reading to watching, a great white paper can be found here --> https://e2e.ti.com/blogs_/b/powerhouse/archive/2018/06/06/the-new-poe-standard-it-s-almost-here

Thank you for reaching out to us today and we look forward to hearing from you!

Aidan Davidson

Hi Fubo Ke! 

Did the information I provided on PoE and the IEEE802.3bt standard answer your question? If so, please mark this resolved to let us know! 

Thank you so much! 

Aidan