ZyXEL Communications IES-612-51A User Manual
Chapter 52 ADSL Commands
IES-612-51A User’s Guide
350
where
This command displays or sets the upstream maximum nominal transmit PSD (Power Spectral
Density).
Density).
The following example sets the upstream maximum nominal transmit PSD for port 7 to -10
dBm/Hz.
dBm/Hz.
52.1.12 DSL Port Downstream PSD Command
Syntax:
ras> adsl dsnompsd <portNo> [<max nominal psd>]
where
This command displays or sets the downstream maximum nominal transmit PSD (Power
Spectral Density).
Spectral Density).
The following example sets the downstream maximum nominal transmit PSD for port 7 to -10
dBm/Hz.
dBm/Hz.
52.1.13 DSL Port Upstream Carrier Command
Syntax:
ras> adsl uscarrier <portNo> [<m0> <m1>]
where
<max nominal
psd>
=
-400 ~ 40 (unit of measure is 0.1dBm/Hz)
Figure 223 DSL Port Upstream PSD Command Example
ras> adsl usnompsd 7 -100
<max nominal
psd>
=
-400 ~ 40 (unit of measure is 0.1dBm/Hz)
Figure 224 DSL Port Downstream PSD Command Example
ras> adsl dsnompsd 7 -100
<m0>,<m1>
=
The upstream subcarriers to be masked (disabled). Each
<mx> can use up to 8 hexadecimal digits
(00000000~ffffffff). Each <mx> represents 32 carrier tones
(each hexadecimal digit represents 4 tones).
<mx> can use up to 8 hexadecimal digits
(00000000~ffffffff). Each <mx> represents 32 carrier tones
(each hexadecimal digit represents 4 tones).
<m0>
= tones 0~31
<m1>
= tones 32~63
The hexadecimal digit is converted to binary and a '1'
disables the corresponding tone. Disabling a carrier tone
turns it off so the system does not send data on it.
disables the corresponding tone. Disabling a carrier tone
turns it off so the system does not send data on it.