ZyXEL SBG3300-NB00 User Guide - Page 137
The Advanced Screen
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The following table describes the labels in this screen. Table 13 Add 3G Dongle Information LABEL DESCRIPTION Default VID Enter the default vendor ID of the 3G dongle. Default PID Enter the default product ID of the 3G dongle. Target VID Enter the target vendor ID of the 3G dongle. Target PID Enter the target product ID of the 3G dongle. Port Number Enter the specified device port of the 3G dongle. Class Enter the target device class of the 3G dongle. Message Content Enter the input message content of the 3G dongle. Apply Click Apply to save your changes. Cancel Click Cancel to exit this screen without saving. Chapter 6 Broadband 6.5 The Advanced Screen Use the Advanced screen to enable or disable PTM over ADSL, Annex M, and DSL PhyR functions. The Device supports the PhyR retransmission scheme. PhyR is a retransmission scheme designed to provide protection against noise on the DSL line. It improves voice, video and data transmission resilience by utilizing a retransmission buffer. Click Network Setting > Broadband > Advanced to display the following screen. Figure 28 Network Setting > Broadband > Advanced The following table describes the labels in this screen. Table 14 Network Setting > Network Setting > Advanced LABEL DESCRIPTION PTM over ADSL Select Enable to use PTM over ADSL. Since PTM has less overhead than ATM, some ISPs use PTM over ADSL for better performance. Annex M You can enable Annex M for the Device to use double upstream mode to increase the maximum upstream transfer rate. PhyR US Enable or disable PhyR US (upstream) for upstream transmission to the WAN. PhyR US should be enabled if data being transmitted upstream is sensitive to noise. However, enabling PhyR US can decrease the US line rate. Enabling or disabling PhyR will require the CPE to retrain. For PhyR to function, the DSLAM must also support PhyR and have it enabled. SBG3300-N Series User's Guide 137