ZyXEL Communications IES-612-51A Guía de usuario Pagina 327

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Chapter 54 ADSL Commands
IES-612-51 User’s Guide
327
adsl usnompsd <port>[<max-
nominal-psd>]
Displays or sets the upstream maximum nominal transmit PSD
(Power Spectral Density).
max-nominal-psd: -400 ~ 40 (unit of measure is 0.1dBm/Hz)
H/H
adsl dsnompsd <port>[<max-
nominal-psd>]
Displays or sets the downstream maximum nominal transmit
PSD (Power Spectral Density).
H/H
adsl uscarrier <port>[<m0><m1>] 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 ADSL port. Use this command to have the system
not use an ADSL 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 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.
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.
m0:tones 0~31
m1:tones 32~63
H/H
adsl dscarrier0 <port>[<m1>
<m2><m3><m4><m5><m6><m7>]
Displays or sets masks for downstream carrier tones from 33
to 255. Masking a carrier tone disables the use of that tone on
the specified ADSL port. The most significant bit defines the
lowest tone number in a mask.
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
H/H
adsl dscarrier1 <port>[<m0><m1>
<m2><m3><m4><m5><m6><m7>
Displays or sets masks for downstream carrier tones from 256
to 511 on the specified ADSL2+ port(s). Use this command to
have the system not use an ADSL line’s tones that are known
to have a high noise level.
m0: tones 256~287
m1:tones 288~319
m2:tones 320~351
m3:tones 352~383
m4:tones 384~415
m5:tones 416~447
m6:tones 448~479
m7:tones 480~511
H/H
Table 133 ADSL Commands (continued)
COMMAND DESCRIPTION P
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