1. Disconnect the clamp [A] and connector [B] from the second G3 interface unit.
  2. Remove the G3 board [A] from the second G3 interface unit for the two-G3 board installation.
  3. Install the G3 board [A] removed from the second G3 interface unit on the first G3 interface unit.
  4. Remove the rear middle cover [A].

    • Check the position of bosses and hooks before removing the cover.

  5. Remove the controller box cover [A].
  6. Cut off the covers for the "LINE2" [A] and "LINE3" [B] ports of the controller box using a screwdriver.
  7. Cut off the cover of the port [C] using a screwdriver.
  8. Install the G3 interface unit [A] on the controller board.

    • Insert the hooks of the G3 interface unit into the controller box when installing the G3 interface box.

  9. Connect the fax unit and the G3 interface unit with the flat cable [A].
  10. Attach the clamp [A], with the [B] side facing upward and the [C] side facing downward.
  11. Reinstall the controller box cover and the rear middle cover.
  12. Attach the FCC decal on the rear cover of the machine (NA only).
  13. Keep the EMC address decal at the customer site (EU only).
  14. Connect the telephone cords to the "LINE2" and "LINE3" jacks for double-G3 board installation.
  15. Insert the power plug into the outlet. Turn ON the main power of the machine.
  16. Enter the service mode. Set Bit 1 of Communication Switch 16 to "1" (SP1-104-023).
  17. Set Bit 3 of Communication Switch 16 to "1" (SP1-104-023).
  18. Exit the service mode.
  19. Turn the main power ON then OFF.
  20. Print out the system parameter list. Check that "G3" is displayed as an option.
  21. Set up and program the items required for PSTN-2 communications.