DS90UB933-Q1: Whether 933 Din 0-7 could pair with 934 Rout 2-9？

Hi Team,

My customer now use 933 and co-work with another company, which use 934.

May I ask if 933 use Din0-Din7 as input and 934 use Rout 2-Rout 9 as output, is it ok?

Or if customer use Din0-7 as input, he must use Rout0-7 as output？