The DTH-P2 is the second prototype and the final verson for the DAQ upgrade in 2025.
It is a ATCA card containing a DAQ part, a TCDS2 part and a ethernet switch.
The place of the the DTH is the hub slot of the ATCA crate. The DTH-P2 includes the ethernet part to distribute the 1Gb on all ATCA slots (compared the the first prototype).
You can find DTH block diagram in the "DAQ" tab (In the menu clock on DAQ).