Argon 18 GALLIUM PRO DISC 338A Assembly Manual page 16

GALLIUM PRO DISC 338A: 4.6. Electronic (Di2) groupset specification
12
EW
7
11
EW = Electronic Wire
Use the square hole to connect all the wires
to the junction box.
Insert the junction box in the hole.
Insert the BB cover (11) in the square hole until it clicks.
Use the Round Grommet (12) to secure the Di2 cable in
the FD hole.
Plus the hole near the BB with the Round Plug (7).
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