Cross connection RTN620

[F3RRY]

Many thanks before to Admin, so I can post this thread.

I want to ask about cross connection in RTN 620 for example :
1. IFH2 to PO1/PH1
2. PO1/PH1 to IFH2
3. SD1/SL1
When we use VC12, VC3 or VC4 and how we fill time slot

Thanks and Regards
Ferry