Port Adsl Inpmin Command - ZyXEL Communications MSC1024G Series User Manual

where
~
<m0>
This command disables 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.
The following example disables downstream carrier tone 301 for ADSL2+ port 5 on the line
card in slot 7.
ras> port adsl dscarrier1 7-5 0 00001000 0 0 0 0 0 0
The following example disables downstream carrier tones 301 to 304 for ADSL2+ port 5 on
the line card in slot 7.
ras> port adsl dscarrier1 7-5 0 0000f000 0 0 0 0 0 0

31.4.10 port adsl inpmin Command

Syntax:
port adsl inpmin <slot-port> <us_inp> <ds_inp>
where
<us_inp>
<ds_inp>
This command sets the minimum upstream (us) and downstream (ds) impulse noise protection
setting on the specified ADSL port(s). Sudden spikes in the line's noise level (impulse noise)
can cause errors and result in lost packets. Set the impulse noise protection minimum to have a
buffer to protect the ADSL physical layer connection against impulse noise. This buffering
causes a delay that reduces transfer speeds. It is recommended that you use a non-zero setting
for real time traffic that has no error correction (like videoconferencing).
MSC1000G/1024G/1224G Series User's Guide
= The downstream carrier tones to be disabled. Each <mx> can use up to 8
<m7>
hexadecimal digits (0~ffffffff). Each <mx> represents 32 carrier tones (each
hexadecimal digit represents 4 tones).
tones 256~287
m0:
m1: tones 288~319
tones 320~351
m2:
m3: tones 352~383
tones 384~415
m4:
m5: tones 416~447
tones 448~479
m6:
m7: tones 480~511
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.
Sets the minimum upstream (us) impulse noise protection setting. Use 0~6 to
=
define a number of DMT symbols. 0 = 0, 1 = 0.5, 2 = 1, 3 = 2, 4 = 4, 5 = 8, 6
= 16 DMT symbols
= Sets the minimum downstream (ds) impulse noise protection setting (0~6).
Chapter 31 port Commands
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