TMUX1209: Source or drain continuous current

Part Number: TMUX1209

Tool/software:

Hello expert, 

The data sheet of TMUX1209 contains the following statement.

7.1 Absolute Maximum Ratings MIN MAX UNIT
IS or ID (CONT) Source or drain continuous current (Sx, D) -30  30 mA

Does this mean that the maximum rating of each of the DA and DB pins is 30 mA or that the maximum rating of both pins combined would be 30mA?

Sincerely,

Ryoma Miyazawa