How many inputs do i need?

TBS6508
In TBS6909 i have an only cable for working with the 8 adapters.
Is it possible to share an input between different input like in the tbs6909? O, do i have to connect 4 cables of the same signal?
Thanks you very much
In TBS6909 i have an only cable for working with the 8 adapters.
Is it possible to share an input between different input like in the tbs6909? O, do i have to connect 4 cables of the same signal?
Thanks you very much