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Configure and View Status
Megabit Modem CRA-C User Manual 27
2
Do 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
.
3
After you type
or 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
T
yp
e
No.
For
Option
Function
1 Startup
Option
Select one of three startup options using the spacebar. The unit
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
Data
Rate
Select a maximum data rate for the upstream channel (from
subscriber to service provider). Use the spacebar to scroll
through the available rates.
(continued)