ARM600 is typically installed in the same location as the central control and monitoring system. ARM600 can be installed, for example, in the company DMZ (demilitarized zone) between the company LAN and the public Internet or directly behind the company firewall. ARM600SW should only be installed behind the company firewall according to Figure 2.
ARM600 requires a fixed line Internet connection with a public and static IP address. A public IP address is required so that the data from the connected Arctic 600 series wireless gateways can be routed to ARM600 via the public Internet. A fixed IP address is required because the data connection between the Arctic 600 series wireless gateways and ARM600 is initiated by the Arctic devices. The IP address of ARM600 must be configured into the Arctic device and, thus, a static IP address is required instead of a dynamic one.
Users with private APN contract SIM cards in the Arctic devices can benefit from using ARM600. In this case, static IP addressing is not required from ARM600 as the cellular operator provides fixed IP addresses for the SIM cards. The added value of ARM600 comes from the added security, endto- end routing from central LAN to remote LAN and centralized device management. Therefore, using private APN type SIM cards and ARM600 are complementary to each other. This offers the best possible reliability and security in a cellular-network based communication system.