ZyXEL MSAP2000 Manuel d'utilisateur Page 69

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69
MSAP2000 AAMS User’s Guide
Table 18 Port Profile (continued)
LABEL DESCRIPTION
Latency Mode This field sets the ADSL latency mode for the ports that belong to this
profile. Select Fast mode to use no interleaving and have faster
transmission (a “fast channel”). This would be suitable if you have a good
line where little error correction is necessary.
Select Interleave mode to use interleave delay when transmission error correction
(Reed- Solomon) is necessary due to a less than ideal telephone
line. See Section 8.4 on page 84 for more on interleave delay.
Up Stream The following parameters relate to upstream transmissions.
Max Rate Type a maximum upstream transfer rate (32 to 3000 Kbps) for this profile.
(kbps.) Configure the maximum upstream transfer rate to be less than the maximum
downstream transfer rate.
Min Rate Type the minimum upstream transfer rate (32 to 3000 Kbps) for this port.
(kbps.) Configure the minimum upstream transfer rate to be less than the maximum
upstream transfer rate.
Interleave Configure this field when you set the Latency Mode field to Interleave. Type
Delay (ms) the number of milliseconds (1-255) of interleave delay to use for upstream
transfers. It is recommended that you configure the same latency delay for both
upstream and downstream.
Max SNR (db) Type the maximum upstream signal to noise margin (0-31 dB).
Min SNR (db) Type the minimum upstream signal to noise margin (0-31 dB). Configure the
minimum upstream signal to noise margin to be less than or equal to the
maximum upstream signal to noise margin.
Target SNR Type the target upstream signal to noise margin (0-31 dB). Configure the target
(db.) upstream signal to noise margin to be greater than or equal to the minimum
upstream signal to noise margin and less than or equal to the maximum
upstream signal to noise margin.
Down Stream The following parameters relate to downstream transmissions.
Max Rate Type a maximum downstream transfer rate (32 to 25000 Kbps) bps for this port.
(kbps.) Configure the maximum downstream transfer rate to be greater than the maximum
upstream transfer rate.
Min Rate Type the minimum downstream transfer rate (32 to 25000 Kbps) for this port.
(Kbps.) Configure the minimum downstream transfer rate to be less than the maximum
downstream transfer rate.
Interleave Configure this field when you set the Latency Mode field to interleave. Type the
Delay (ms) number of milliseconds (1-255) of interleave delay to use for upstream transfers. It
is recommended that you configure the same latency delay for both upstream and
downstream.
Max SNR (db) Type the maximum downstream signal to noise margin (0-31 dB).
Min SNR (db) Type the minimum downstream signal to noise margin (0-31 dB). Configure
the minimum downstream signal to noise margin to be less than or equal to
the maximum downstream signal to noise margin.
Target SNR Type the target downstream signal to noise margin (0-31 dB). Configure the target
(db) downstream signal to noise margin to be greater than or equal to the minimum
downstream signal to noise margin and less than or equal to the maximum
downstream signal to noise margin.
Add
Cancel Click Cancel to start configuring the screen again.
Click
A
dd to save you
r
changes
t
o the AAM’s vola
t
ile memo
r
y
. The AAM loses
these changes if it is turned off or loses power, so use the Config Save link on
the navigation panel to save your changes to the non-volatile memory when
you are done configuring.
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