Yamaha MOTIF6 Owner's Manual page 28

Connections
Connecting Various Controllers
The MOTIF features several controller jacks on the rear panel — letting you independently control various aspects
of the sound and a variety of functions with optional controllers.
28
MOTIF Setting Up
FOOT
SWITCH
BREATH
ASSIGNABLE SUSTAIN
BC3 FC4 FC4
or
or
FC5
FC5
FOOT
CONTROLLER
2 1
FC7 FC7
Quick Start Guide (page 48)