Shimano Ultegra ST-6870 Dealer's Manual page 31

INSTALLATION
Installation of the shifting switch
Example of connection of the electric cable
(A)
(D)
(E)
(C)
(B)
31
(A)
SM-EW90
(B)
ST-6870(R)
(C)
Shifting switch
(D)
Dummy plug
(E)
Electric wire
CAUTION
The illustration shows an example for ST-6870/
SW-R610.
•
This varies depending on the combination
of the dual control lever and the
gear-shifting switch. For details, refer to
the electric cable wiring diagram (junction
(A)).
•
For waterproof purposes, use the special
tool on unused ports and install dummy
plugs.