Configure and View Status

2Do the following for each system setting option you want to change:

•Type the number of the option you want to configure.

•Select, using the spacebar, or type the appropriate information for each option as indicated in Table 8 then press

ENTER .

3After you type R or M and have made changes to the ADSL transceiver, you are prompted Save current settings (Y/N)? Type Y for yes or N for no. You then return to the ADSL Menu.

Table 8. ADSL Transceiver Options

Type

For

Function

 

 

 

No.

Option

 

 

 

 

1

Startup

Select one of three startup options using the spacebar. The unit

 

 

 

 

 

Option

uses the option you select to achieve a transmission rate for the

 

 

 

 

 

 

ADSL line at a reboot or if the line is dropped and recovered.

 

 

 

 

 

 

Full startup always - System will always attempt a full startup

 

 

 

 

 

 

where it will set a transmission rate up to the maximum specified

 

 

 

 

 

 

in options 2 and 3 for maximum upstream and downstream data

 

 

 

 

 

 

rate. It determines this rate by assessing the signal quality data

 

 

 

 

 

 

(line length and noise conditions, for example) and the SNR

 

 

 

 

 

 

value set in option 4 for SNR startup margin. It then uses the

 

 

 

 

 

 

highest available rate based on this information.

 

 

 

 

 

 

Session startup - Session startup uses the data acquired during a

 

 

 

 

 

 

full startup to achieve a transmission rate, rather than

 

 

 

 

 

 

re-assessing the signal quality data. In this mode, the system

 

 

 

 

 

 

performs a session startup upon every powerup or reset and

 

 

 

 

 

 

would also revert back to a full startup attempt when a session

 

 

 

 

 

 

startup is not successful for 30 seconds. This is the default.

 

 

 

 

 

 

Fixed data rate - At startup, the system attempts only the data

 

 

 

 

 

 

rates that you select in options 2 and 3 for maximum upstream

 

 

 

 

 

 

and downstream data rates. The system attempts to come up at

 

 

 

 

 

 

the programmed data rates with a margin greater than or equal to

 

 

 

 

 

 

the configured margin. If the data rates cannot be obtained, then

 

 

 

 

 

 

the system will continue to attempt the data rate. If it does not

 

 

 

 

 

 

achieve it, sync will not occur.

 

 

 

 

 

 

 

 

 

2*

Max Up

Select a maximum data rate for the upstream channel (from

 

 

 

 

 

Data

subscriber to service provider). Use the spacebar to scroll

 

 

 

 

 

Rate

through the available rates.

 

 

 

 

 

 

(continued)

 

 

 

 

 

 

 

 

 

Megabit Modem CRA-C User Manual

27