Owasys Owa4X - Illustration 4: no IP67 Rear; Illustration 5: IP67 Rear

%&'"()*+,,-,,.".
3.3.2.1 No IP67 rear back cover
This back cover is open and does not support the IP67 requirements.
3.3.2.2 IP67 rear back cover
This back cover supports IP67 requirements, and has no opening at all.
3.3.2.3 IP67 rear back cover with cable gland
This back cover supports IP67 requirements, and has a cable gland to connect
to the Ethernet interface in the back side of the unit.
+.
Illustration 4: No IP67 rear back cover
Illustration 5: IP67 rear back cover