ZyXEL Communications P-660H-Tx v2 - Manual (Page 31)

P-660H-Tx v2 User’s Guide
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H A P T E R
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Introducing the ZyXEL Device
This chapter introduces the main applications and features of the ZyXEL Device. It also
introduces the ways you can manage the ZyXEL Device.
1.1 Overview
The ZyXEL Device is an ADSL2+ gateway that allows super-fast, secure Internet access over
analog (POTS) or digital (ISDN) telephone lines (depending on your model).
In the ZyXEL Device product name, “H” denotes an integrated 4-port switch (hub).
See the Product Specifications appendix for a full list of features.
Model names ending in “1”, for example P-660H-T1 v2, denote a device that works over the
analog telephone system, POTS (Plain Old Telephone Service). Model names ending in “3”
denote a device that works over ISDN (Integrated Services Digital Network).
The DSL RJ-11 (ADSL over POTS models) or RJ-45 (ADSL over ISDN models) connects to
your ADSL-enabled telephone line.
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Only use firmware for your ZyXEL Device’s specific model. Refer to the label
on the bottom of your ZyXEL Device.
The ZyXEL Device is the ideal high-speed Internet access solution. It is compatible with all
major ADSL DSLAM (Digital Subscriber Line Access Multiplexer) providers and supports
the ADSL standards as shown in
Table 1 on page 32 .
The ZyXEL Device provides protection from attacks by Internet hackers. By default, the
firewall blocks all incoming traffic from the WAN. The firewall supports TCP/UDP
inspection and DoS (Denial of Services) detection and prevention, as well as real time alerts,
reports and logs.
A typical Internet access application is shown below