ZyXEL Communications AAM1212-51, Руководство пользователя, Страница: 357 / 435

AAM1212-51/53 Series User’s Guide
Chapter 52 ADSL Commands 357
where
Use this command to display or set Power ManageMent (PMM) parameters for the specified
DSL port(s).
The following example sets DSL port 5 to use the following PMM settings.
<portlist> =
You can specify a single DSL port <1>, all DSL ports <*> or a
list of DSL ports <1,3,5>. You can also include a range of ports
<1,5,6~10>.
<l0time> =
Set the minimum time in seconds (10~65535) that the DSL line
must stay in L0 power mode before changing to the L2 power
mode.
<l2time> =
Set minimum time in seconds (10~65535) that the DSL line
must stay in the L2 power mode before reducing the power
again in the L2 power mode.
<l2atpr> =
Set the maximum Aggregate Transmit Power Reduction
(ATPR) in decibels (dB) that is permitted in a L2 power
reduction. The system can gradually decrease the DSL line
transmission power while it is in the L2 power mode. This is the
largest individual power reduction allowed in the L2 power
mode. The range is 0~15(dB).
<l2atprt> =
Set the maximum Aggregate Transmit Power Reduction Total
(ATPRT) in decibels (dB) that is permitted in the L2 power
mode. This is the total transmit power decrease that is allowed
to occur in the L2 power mode. The range is 0~15(dB).
<max_l2rate> =
Set the maximum transfer rate (in Kilobits per second) that is
permitted while the port is in the L2 power mode. The supported
range is 32~4096 Kbps in 4 Kbps increments. If you enter a
number that is not a multiple of 4, the system uses the next
lower multiple of 4. If you enter 39 for example, the system will
use 36.
<min_l2rate> =
Set the minimum transfer rate (in Kilobits per second) that is
permitted while the port is in the L2 power mode. The supported
range is 32~4096 Kbps in 4 Kbps increments. If you enter a
number that is not a multiple of 4, the system uses the next
lower multiple of 4. If you enter 39 for example, the system will
use 36.
<l0tol2_rate> =
Set the down stream transfer rate (in Kilobits per second) that
serves as the threshold for whether the port is to use the L0 or
the L2 power mode. The system changes from L0 mode to L2
mode when the downstream transfer rate stays below this
threshold for
L0 Time . The system changes back from L2 mode
to L0 mode when the downstream transfer rate goes above this
threshold. This rate must be less than or equal to one half of the
Min L2 Rate and at least 16 Kbps.