P-661HNU-Fx User’s Guide
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CHAPTER 1
Introduction
1.1 Overview
The ZyXEL Device is an ADSL2+ 4-Port Security Gateway with rich features and
performance that uses 802.11N technology to maximize the speed and range of
your wireless signal. The ZyXEL Device is also a complete security solution with a
robust firewall based on Stateful Packet Inspection (SPI) and Denial of Service
(DoS) protection.
Please refer to the following description of the product name format.
• “H” denotes an integrated 4-port hub (switch).
• “N” denotes wireless functionality, including 802.11n mode. There is an
embedded mini-PCI module for IEEE 802.11 a/b/g/n wireless LAN connectivity.
• “U” denotes a USB port used to set up a 3G WAN connection via a 3G wireless
dongle or share files via a USB memory stick or a USB hard drive. The ZyXEL
Device can also function as a print server with a USB printer connected.
• Models ending in “1”, for example P-661HNU-F1, denote a device that works
over the analog telephone system, POTS (Plain Old Telephone Service). Models
ending in “3” denote a device that works over ISDN (Integrated Services Digital
Network) or T-ISDN (UR-2).
Only use firmware for your ZyXEL Device’s specific model. Refer
to the label on the bottom of your ZyXEL Device.
See the chapter on product specifications for a full list of features.
1.2 Applications for the ZyXEL Device
Here are some example uses for which the ZyXEL Device is well suited.
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