SMC Networks TigerAccess SMC7816M - Manual (Page 730)

VDSL C
OMMANDS
29-48
Example
The following sets the minimum and maximum data rates for the
downstream fast channel on port 1.
Related Commands
lre datarate (29-26)
down/up-target-noise-mgn
These commands set the targeted signal-to-noise margin that VDSL ports
must achieve to successfully complete initialization on a downstream/
upstream channel. Use the no form to restore the default settings.
Syntax
{down|up}-target-noise-mgn value
no {down|up}-target-noise-mgn
• down – Downstream bands.
• up – Upstream bands.
• value – Signal-to-noise margin. (Range: 0-62, in units of 0.5 dB)
Default Setting
12 dB
Command Mode
VDSL Line Profile
Command Usage
This command sets the noise margin that transceivers must achieve
with a Bit Error Rate (BER) of 10
-7 or better to successfully complete
initialization. It indicates the maximum amount by which the reference
crosstalk noise level can be increased during a BER test without
causing the modem to fail the BER requirement.
Console(config-line-profile)#down-fast-max-datarate 190000
Console(config-line-profile)#down-fast-min-datarate 640
Console(config-line-profile)#