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.

 

 

 

Click Add to save your changes to the AAM’s volatile memory. The AAM loses

Add

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.

Cancel

Click Cancel to start configuring the screen again.

 

 

69

Page 69
Image 69
ZyXEL Communications manual MSAP2000 Aams User’s Guide Port Profile