ZyXEL P-660R Compact Series User Guide - Page 25
Getting To Know Your
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P-660R-D Series User's Guide CHAPTER 1 Getting To Know Your Z Y X E L DEVICE This chapter describes the key features and applications of your ZyXEL Device. 1.1 Introducing the ZyXEL Device The ZyXEL Device is an ADSL2+ gateway that allows super-fast Internet access over analog (POTS) or digital (ISDN) telephone lines (depending on your model). In the ZyXEL Device product name, "R" denotes an integrated router and "D" denotes a chip set standard. Your ZyXEL Device product name ends with a number. Models ending in "1", for example P660R-D1, 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). Models ending in "7" denote a device that works over T-ISDN (UR-2). Note: Only use firmware for your ZyXEL Device's specific model. Refer to the label on the bottom of your ZyXEL Device. Chapter 1 Getting To Know Your ZyXEL Device 24