ZyXEL Communications IES-1248-51 Guia do Utilizador descarregar pdf (Página 471)

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Chapter 64 ADSL Commands

IES-1248-51V User’s Guide

471

adsl tel <portlist><tel> Records the telephone number of an ADSL subscriber

telephone number.

tel: An ADSL subscriber’s telephone number. You can

use up to 15 ASCII characters (including spaces and

hyphens).

adsl loopback

Performs an OAMF5 loopback test on the specified

ADSL port(s).

f5: Use f5 to perform an OAMF5 loopback test on the

specified DSL port. An Operational, Administration and

Maintenance Function 5 test is used to test the

connection between two DSL devices. First, the DSL

devices establish a virtual circuit. Then the local device

sends an ATM F5 cell to be returned by the remote DSL

device (both DSL devices must support ATM F5 in

order to use this test).

vpi, vci: The Virtual Path Identifier (VPI) and Virtual

Circuit Identifier (VCI) identify a channel on this port.

Possible values for the VPI are 0~255.

Possible values for the VCI are 32~65535 if the VPI is

0. If the VPI is not 0, possible values for the VCI are

1~65535.

H/H

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

Table 184 ADSL Commands (continued)

COMMAND DESCRIPTION P

1 2 ... 466 467 468 469 470 471 472 473 474 475 476 ... 653 654

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