ZyXEL Communications P-660HW-DX, User Manual

Page: 34 / 364

Chapter 1 Introducing the ZyXEL Device
P-660HW-Dx User’s Guide
34
Figure 1 Protected Internet Access Applications
You can also use the ZyXEL Device to connect two geographically dispersed networks over
the ADSL line. A typical LAN-to-LAN application example is shown as follows.
Figure 2 LAN-to-LAN Application Example
The ZyXEL Device is compatible with the ADSL/ADSL2/ADSL2+ standards. Maximum data
rates attainable for each standard are shown in the next table.
"
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.
Table 1 ADSL Standards
DATA RATE STANDARD UPSTREAM DOWNSTREAM
ADSL
832 kbps 8Mbps
ADSL2
3.5Mbps 12Mbps
ADSL2+
3.5Mbps 24Mbps