Chapter 52 ADSL Commands
<l2atpr> | = | Set the maximum Aggregate Transmit Power Reduction |
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| (ATPR) in decibels (dB) that is permitted in a L2 power |
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| reduction. The system can gradually decrease the DSL line |
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| transmission power while it is in the L2 power mode. This is |
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| the largest individual power reduction allowed in the L2 |
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| power mode. The range is 0~15(dB). |
<l2atprt> | = | Set the maximum Aggregate Transmit Power Reduction |
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| Total (ATPRT) in decibels (dB) that is permitted in the L2 |
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| power mode. This is the total transmit power decrease that is |
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| allowed to occur in the L2 power mode. The range is |
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| 0~15(dB). |
<max_l2rate> | = | Set the maximum transfer rate (in Kilobits per second) that |
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| is permitted while the port is in the L2 power mode. The |
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| supported range is 32~4096 Kbps in 4 Kbps increments. If |
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| you enter a number that is not a multiple of 4, the system |
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| uses the next lower multiple of 4. If you enter 39 for |
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| example, the system will use 36. |
<min_l2rate> | = | Set the minimum transfer rate (in Kilobits per second) that is |
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| permitted while the port is in the L2 power mode. The |
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| supported range is 32~4096 Kbps in 4 Kbps increments. If |
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| you enter a number that is not a multiple of 4, the system |
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| uses the next lower multiple of 4. If you enter 39 for |
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| example, the system will use 36. |
<l0tol2_rate> | = | Set the down stream transfer rate (in Kilobits per second) |
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| that serves as the threshold for whether the port is to use the |
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| L0 or the L2 power mode. The system changes from L0 |
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| mode to L2 mode when the downstream transfer rate stays |
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| below this threshold for L0 Time. The system changes back |
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| from L2 mode to L0 mode when the downstream transfer |
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| rate goes above this threshold. This rate must be less than or |
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| equal to one half of the Min L2 Rate and at least 16 Kbps. |
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.
•Stay in the L0 power mode for 180 seconds before a change to the L2 power mode is permitted.
•Once in L2 power mode, wait for 90 seconds before further reducing the transmission power.
•Each L2 power mode power reduction can only be 2 dB or less.
•The total power reduction allowed in the L2 power mode is 15 dB.
Figure 233 PMM Parameters Command Example
ras> adsl pmm param 5 180 90 2 15
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