Leds (Lights); Figure 1 Zyxel Device's Router Features; Figure 2 Leds On The Top Of The Device; Table 1 Led Descriptions - ZyXEL Communications P-660HN User Manual

Figure 1 ZyXEL Device's Router Features

LAN
You can also configure firewall and content filtering on the ZyXEL Device for secure Internet
access. When the firewall is on, all incoming traffic from the Internet to your network is
blocked 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.
Use content filtering to block access to specific web sites, with URL's containing keywords
that you specify. You can define time periods and days during which content filtering is
enabled and include or exclude particular computers on your network from content filtering.
For example, you could block access to certain web sites for the kids.
Use QoS to efficiently manage traffic on your network by giving priority to certain types of
traffic and/or to particular computers. For example, you could make sure that the ZyXEL
Device gives voice over Internet calls high priority, and/or limit bandwidth devoted to the
boss's excessive file downloading.

1.5 LEDs (Lights)

The following graphic displays the labels of the LEDs.

Figure 2 LEDs on the Top of the Device

None of the LEDs are on if the ZyXEL Device is not receiving power.

Table 1 LED Descriptions

LED
POWER
P-660HN-Fx User's Guide
COLOR STATUS DESCRIPTION
Green On The ZyXEL Device is receiving power and ready for use.
Blinking The ZyXEL Device is self-testing.
Red On The ZyXEL Device detected an error while self-testing, or there is
a device malfunction.
Off The ZyXEL Device is not receiving power.
Chapter 1 Introducing the ZyXEL Device
DSL
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