Please let me ask you if DS10CP154 have failsafe circuit inside.
It seems it does not have failsafe circuit nor bias circuit to the input.
I found a similar question in the following thread, but not exactly the same.
http://e2e.ti.com/support/interface/high_speed_interface/f/138/p/180821/655616.aspx#655616
Best Regards,
Kawai