Paradyne Hotwire ATM Line Cards 8335, Руководство пользователя

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3. Configuration
3-14
February 2003 8335-A2-GB20-70
Target SNR Margin
ATU-C/ATU-R The Signal-to-Noise Ratio (SNR) margin relative to a Bit
Error Ratio of 10
-7
required for a successful activation of
the port for the ATU-C and ATU-R. The maximum SNR is
always 16 dB, while the minimum is always 0 dB. The SNR
margin for rate downshift is 3 dB below the Target SNR
Margin. When the SNR margin falls below this level, the
device will attempt to decrease its transmit rate. The SNR
margin for rate upshift is 2 dB above the Target SNR
Margin. When the noise margin rises above this level, the
device will attempt to increase its transmit rate. Rate shifts
occur as soon as the margin threshold is exceeded.
3 dB – 14 dB in 1 dB increments (Default = 4 dB).
Alarm Profile The name of the alarm configuration profile (up to
32 alphanumeric characters). Press Ctrl-v to display a list