Chapter 1 Introducing the Zyxel Device
VMG/EMG/AM/DM/GM Series User’s Guide
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Figure 4 Zyxel Device’s Internet Access Application: Ethernet WAN
Fiber (AM Series)
The Zyxel Device provides shared Internet access by connecting a Small Form-Factor Pluggable (SFP)
transceiver to the SFP port. In addition, you can connect computers, IPTVs, gaming consoles, and other
Ethernet devices to the Ethernet ports for fiber-speed Internet access.
Figure 5 Zyxel Device’s Internet Access Application: Fiber
1.2.2 Firewall Application
You can also configure Firewall on the Zyxel Device for secure Internet access. When the Firewall is on,
all incoming traffic from the Internet to your network is blocked by default unless it is initiated from your
network. This means that probes from the outside to your network are not allowed, but you can safely
browse the Internet and download files.