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Chapter 6 WAN Setup

P-660H-T1v3s User’s Guide

The following table describes the labels in this screen.

Table 12 Network > WAN > Internet Access Setup

LABEL DESCRIPTION

Line

ADSL Mode Select the modulation supported by your ISP.

Use Auto Sync-Up if you are not sure which mode to choose from.

The P-660H-T1v3s dynamically diagnoses the mode supported by the

ISP and selects the best compatible one for your connection.

Other options are: ADSL2+, ADSL2, G.DMT, T1.413 and G.lite.

ADSL2+: This mode has a downstream rate of 24 Mbit/s and an

upstream rate of 1.0 Mbit/s.

ADSL2: This mode has a downstream rate of 12 Mbit/s and an

upstream rate of 1.0 Mbit/s.

G.DMT: This mode has a downstream rate of 12 Mbit/s and an

upstream rate of 1.3 Mbit/s.

T1.413: This mode has downstream rate of 8 Mbit/s and an upstream

rate of 1.0 Mbit/s.

G.lite: This mode has a downstream rate of 1.5 Mbit/s and an

upstream rate of 0.5 Mbit/s. This type of DSL does not use splitter.

Annex Type Select the annex type supported by your ISP. An annex defines how

ADSL works under certain conditions.

Options are:

Annex A - This is ADSL over POTS (Plain Old Telephone Service),

most commonly found in North America. It uses a frequency of 138

kHz.

Annex A/L - This is Reach Extended ADSL2 (READSL2), allowing an

ISP to extend the distance data can be transmitted over Annex A by

up to 7 kilometers. Because it has high power requirements that may

result in audible cross-talk over lines, it sees limited deployment.

Annex M - This is an optional modification of Annex A that doubles

the DSL device’s upstream bits. It also shifts the frequency of Annex A

up to 276 kHz.

Annex A/L/M-This is a combination of the A, L and M annexes.

General

Mode Select Routing (default) from the drop-down list box if your ISP gives

you one IP address only and you want multiple computers to share an

Internet account.

Select Bridge when your ISP provides you more than one IP address

and you want the connected computers to get individual IP address

from ISP’s DHCP server directly. If you select Bridge, you cannot use

Firewall, DHCP server and NAT on the P-660H-T1v3s.

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