CU 352/354/362/372/3X2 DH
The CU 3xx is a traditional network connected device and should be placed on a private network behind a firewall.
It should not be connected directly to the Internet. Also, no TCP/IP ports should be forwarded to the product.
If you need remote access to the device, you should use such technologies as Virtual Private Networks (VPNs) to ensure a secured connection. It is recommended that you consult an IT Infrastructure Specialists to establish such a solution.