Annex L Enable Command; Annex L Disable Command; Figure 245 Impulse Noise Protection Command Example; Figure 246 Annex L Enable Command Example - ZyXEL Communications IES-1248-51 User Manual

where
<usINP>
<dsINP>
This command sets the upstream (us) and downstream (ds) impulse noise protection minimum
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).
The following example sets the impulse noise protection minimum to 1 DMT symbols for
upstream and 0.5 DMT symbols for downstream for ADSL port 5.

Figure 245 Impulse Noise Protection Command Example

ras> adsl inp 5 2 1

55.1.18 Annex L Enable Command

This command is available for the IES-1248-51 and IES-1248-51A.
Syntax:
ras> adsl annexl enable <portlist>
This command turns on the Annex L reach extended feature on the specified ADSL2 port(s).
Annex L can be used with Annex A (ADSL over POTS), not Annex B (ADSL over ISDN).
The following example turns on the Annex L feature for port 5.

Figure 246 Annex L Enable Command Example

ras> adsl annexl enable 5

55.1.19 Annex L Disable Command

This command is available for the IES-1248-51 and IES-1248-51A.
Syntax:
ras> adsl annexl disable <portlist>
Chapter 55 ADSL Commands
Sets the minimum upstream (us) impulse noise protection setting. Use
=
0~3 to define a number of DMT symbols. 0 = 0 DMT symbols, 1 = 0.5
DMT symbols, 2 = 1 DMT symbols, 3 = 2 DMT symbols.
Sets the minimum downstream (ds) impulse noise protection setting.
=
Use 0~3 to define a number of DMT symbols. 0 = 0 DMT symbols, 1 =
0.5 DMT symbols, 2 = 1 DMT symbols, 3 = 2 DMT symbols.
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