G3 Interface Unit (D393)
D393 20 SM
5. Remove the "LINE2" cover and "LINE3" cover with a screwdriver.
6. Connect the SG3 interface unit [A] to the controller board [B] with the flat cable ( x 4).
7. Attach the socket of harness [A] (LINE2) and the socket of harness [C] (LINE3) to the
modular bracket for SG3.
8. Connect the harness [A] (LINE2) to the first SG3 board and the harness [C] (LINE3)
to the second SG3 board (= x 4).
9. Attach the modular bracket for SG3 to the controller box ( x 2).