I was setting my 896hd as a optical satellite following this manual
http://www.motu.com/techsupport/technot ... lexpansion
According to that page, use drop-down menu above the master fader, select ADAT 1-2.
But I cannot find ADAT 1-2!
Screenshot is below.

As you see, There's no ADAT 1-2 option.
How can I solve this problem?