Chapter 1 Introducing the ZyXEL Device

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The ZyXEL Device is an ADSL router compatible with the ADSL/ADSL2/ADSL2+ standards. It allows super-fast, secure Internet access over the analog (POTS) or digital (ISDN) telephone line (depending on your model). Maximum data rates attainable for each standard are shown in the next table.

Table 1 ADSL Standards

DATARATESTANDARD

UPSTREAM

DOWNSTREA

M

 

 

ADSL

832 kbps

8Mbps

 

 

 

ADSL2

3.5Mbps

12Mbps

 

 

 

ADSL2+

3.5Mbps

24Mbps

 

 

 

If your ZyXEL Device does not support Annex M, the maximum ADSL2/2+ upstream data rate is 1.2 Mbps. ZyXEL Devices which work over ISDN do not support Annex M.

The standard your ISP supports determines the maximum upstream and downstream speeds attainable. Actual speeds attained also depend on the distance from your ISP, line quality, etc.

Models ending in "1", for example P-660RU-T1, 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 Synchronous Digital System). Models ending in "7" denote

adevice that works over T-ISDN (U-R2).

1.2Ways to Manage the ZyXEL Device

Use any of the following methods to manage the ZyXEL Device.

•Web Configurator. This is recommended for everyday management of the ZyXEL Device using a (supported) web browser.

•Command Line Interface. Line commands are mostly used for troubleshooting by service engineers.

•FTP for firmware upgrades and configuration backup/restore.

•SNMP. The device can be monitored by an SNMP manager. See the SNMP chapter in this User’s Guide.

•TR-069. TR-069 is a protocol that defines how your ZyXEL Device can be remotely managed via a management server.

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P-660RU-T v2 User’s Guide