ZyXEL P-660H-T1 v3s User Guide - Page 72
Table 12, Network > WAN > Internet Access Setup - adsl 2 2 over pots
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Chapter 6 WAN Setup The following table describes the labels in this screen. Table 12 Network > WAN > Internet Access Setup LABEL Line ADSL Mode DESCRIPTION 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. Annex Type 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. 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. General Mode Annex A/L/M-This is a combination of the A, L and M annexes. 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. 72 P-660H-T1v3s User's Guide