ZyXEL Communications MSC1000G Series, Руководство пользователя

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Chapter 9 Subscriber Port Setup Screens
Management Switch Card User’s Guide
217
Enable Select this check box to turn on this port.
Customer Info Enter information to identify the subscriber connected to this ADSL port. You can use up to
31 printable English keyboard characters (including spaces and hyphens).
TEL Enter information to identify the telephone number of the subscriber connected to this ADSL
port. You can use up to 15 English keyboard characters (including spaces and hyphens).
ADSL Profile Select a profile of ADSL settings (such as the transfer rate, interleave delay and signal to
noise ratio settings) to assign to this port. Use the
ADSL Profile screen to configure ADSL
port profiles.
Mode Select an ADSL mode from the drop-down list box the card is to use.
Alarm Profile Select an alarm profile to define the thresholds that trigger an alarm on the port when
exceeded.
ADSL2/2+
Feature These are features available with ADSL2/2+. The subscriber’s ADSL device must also support
the individual features in order to use them.
Annex I/J Enable Annex I /J to use all digital mode. With Annex I/J, the ADSL connection uses the full
spectrum of the physical line and the user cannot use POTS or ISDN service. This increases
the upstream data rate.
Note: The subscriber cannot use POTS or ISDN services when you enable Annex I/J.
Annex L This feature is only available for Annex A cards. Enable Annex L to use reach extended
ADSL2. This allows increased connection distances.
Select enable (narrow) to enable extended ADSL2 in narrow Power Spectral Density (PSD)
mode. Narrow mode supports longer loop lengths but has lower transmission speeds.
Select enable (wide) to enable extended ADSL2 in wide PSD mode. Narrow mode supports
higher transmission speeds but requires shorter loop lengths.
Select disable to disable extended ADSL2.
Annex M This feature is only available for Annex A cards. Enable Annex M to use double upstream
mode. This has the upstream connection use tones 6 to 63.
Option Mask This field displays the bit mask that represents the features that have been disabled for this
connection. Click the bit mask number to open the
Option Mask screen where you can
disable attributes for the port. This is for advanced troubleshooting. See Section 9.7.3 on
page 219 for more information.
Power
Management
Mode Enable power management to reduce the amount of power used overall and reduce the
instances of the connection going down. This increases or decreases the transmission power
based on line conditions. It also decreases the number of service interruptions.
Select L2 to have the ADSL connection use power saving mode and reduce the rate when
there is no traffic. The rate comes back up when there is traffic.
Select L3 to use both power management modes L2 and L3. L3 puts the ADSL connection to
sleep mode when there is no traffic.
L0time Set the time (10~ 65535 seconds) to stay in L0 mode.
L2time Set the time (10~65535 seconds) to wait before performing another power trim in L2 mode.
L2atbr Set the maximum aggregated power reduction (APTR) per trim in dB (0~l2atprt).
L2atpr Set the maximum total aggregate power reduction in dB (0~15).
L2minrate Set the minimum rate in L2 (32~4096).
L2maxrate Set the maximum rate in L2 (minimum L2 rate ~ maximum upstream rate in kbps).
L2threshold Set the line rate threshold to stay in L2 mode. When the rate is not within the threshold, the
port switches to L0 mode immediately.
Table 96
ADSL Port Setup: Advanced (continued)
LABEL DESCRIPTION