14 dsl port downstream carrier0 command – ZyXEL Communications IES-612-51A User Manual

Page 351

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Chapter 52 ADSL Commands

IES-612-51A User’s Guide

351

The hexadecimal digit is converted to binary and a '1' masks (disables) the corresponding tone.
Disabling a carrier tone turns it off so the system does not send data on it.

This command displays or sets masks for upstream carrier tones from 0 to 63. Masking a
carrier tone disables the use of that tone on the specified DSL port. Use this command to have
the system not use a DSL line’s tones that are known to have a high noise level. The most
significant bit defines the lowest tone number in a mask.

The most significant bit defines the first tone sequentially. For example, in <m0>, 0x00000001
means tone 31. For example, you could use 0xffff0000 for <m0> to disable upstream carrier
tones 0~15 and leave tones 16 ~ 31 enabled.

The following example disables upstream carrier tones 0~15 for DSL port 5.

The following example displays the results.

52.1.14 DSL Port Downstream Carrier0 Command

Syntax:

ras> adsl dscarrier0 <port number> [<m1> <m2> <m3> <m4> <m5> <m6> <m7>]

where

The hexadecimal digit is converted to binary and a '1' masks (disables) the corresponding tone.
Disabling a carrier tone turns it off so the system does not send data on it.

Figure 225 DSL Port Upstream Carrier Command Example

ras> adsl uscarrier 5 ffff0000 00000000

Figure 226 DSL Port Upstream Carrier Command Display Example

ras> adsl uscarrier 5

us carrier

port m0 m1

---- |--------|--------|

5 FFFF0000 00000000

Tone:

m0:0-31, m1:32-63

<m1> - <m7>

=

The downstream carrier tones to be masked (disabled). Each
<

mx

> can use up to 8 hexadecimal digits (0~ffffffff). Each

<

mx

> represents 32 carrier tones (each hexadecimal digit

represents 4 tones).

<m1>

=

tones 32~63

<m2>

=

tones 64~95

<m3>

=

tones 96~127

<m4>

=

tones 128~159

<m5>

=

tones 160~191

<m6>

=

tones 192~223

<m7>

=

tones 224~255

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