Ericsson ECN320, Руководство пользователя

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Command Line Interface
84
1553-CNH 160 0787 Uen PA2 2005-09-23
•
dmt-carrier-mask <mask>
– Setting the DMT (Discrete Multi
Tone) carrier mask. 128 hexadecimal characters, default down-
stream and 16 hexadecimal characters, default upstream.
•
max-snr-margin <margin> –
Setting Maximum SNR (Signal
To Noise) margin in dB. Range 0-31 dB.
•
min-snr-margin <margin>
- Setting minimum SNR (Signal to
Noise) margin in dB. Range 0-31 dB.
•
min-downshift-margin <margin> –
Setting the Minimum
Downshift Margin in dB. Range 0-31 dB.
•
min-upshift-margin <margin> –
Setting the Minimum Up-
shift Margin in dB. Range 0-31 dB.
•
min-downshift-time <time> -
Setting Minimum Downshift
Time in seconds. Range 0 -16383 seconds. The Downshift SNR
margin and Min Downshift Time are only valid if Rate Adapta-
tion Mode is set to adapt-at-runtime. If the Actual SNR Margin falls
below the Downshift SNR margin for more than Min Downshift
Time the line will be temporarily closed and re-initialized at a lower
bit-rate.
•
min-upshift-time < time >
- Setting Minimum Upshift Time in
seconds. Only valid if Rate Adaptation Mode is set to adapt-at-
runtime. Range 0 – 16383 seconds.
•
rate-adaption-mode fixed/adapt-at-startup/adapt-
at-runtime –
Select the rate adaption mode either fixed, adapt-
at-startup or adapt-at-runtime.
•
state enable/disable –
The DSL line can be activated or
deactivated. Select enable to activate the line or disable to deacti-
vate the line.
•
target-snr-margin <target_snr_margin> –
Setting Tar-
get SNR Margin in dB. Range 1-31 dB. The Target SNR margin is
the ultimate condition that always must be achieved for successful
training.
•
transmit-PSD fixed/priority-to-power/priority-to-
rate
– ADSL transmission mode (PSD: Power Spectral Density)
can be set to:
−
fixed -
A constant 19 dB output power from IP DSLAM.
This setting is the default setting for the IP DSLAM,