Shimano Ultegra R8050 Series Dealer's Manual page 116

CONNECTION OF ELECTRIC WIRES
Connection of junction B
2
Connect the electric wires to junction A.
(A)
3
(D)
To be continued on next page
Connect each electric wire to junction B.
(A)
(B)
(E)
(G) (G)
(C)
(F)
(G)
116
(A)
SM-JC40/41 Junction B
TECH TIPS
When connecting electric wires, push them in
until you feel and hear a click.
(A)
SM-EW90-A Junction A
(B)
SM-EW90-B Junction A
(C)
EW-RS910 Junction A
(D)
E-TUBE port ×3
(E)
E-TUBE port ×5
(F)
E-TUBE port ×2
(G)
Shimano original tool TL-EW02