COURIER HIGH SPEED MODEMS

 

When you power on the Courier, it loads the settings stored in

 

NVRAM if DIP switch 10 is OFF. Until you write your own

 

settings to NVRAM, the defaults stored there are the same as

 

the permanent ROM factory settings stored in position 1, &F1.

 

To view the &F1 settings, select option 5 of the I (inquiry)

 

command:

 

AT I5 <Enter>

 

Customizing NVRAM

&W

To substitute a template other than &F1, write the desired

 

template to NVRAM, using the &W command.

 

AT &F2 &W <Enter>

 

To modify the &Fn configuration in NVRAM, type your

 

changes and then save them to NVRAM, as in the following

 

example. The original factory template remains intact.

 

AT M2 S10=40 &A2 &W <Enter>

 

NOTE: When writing a different default configuration to

 

NVRAM, insert any additions after the &Fn command but before

 

&W. Otherwise they will be overwritten by &Fn.

 

After sending a configuration to NVRAM, you can change any

 

setting just for the current session, as in the following example.

 

The NVRAM configuration remains intact.

 

ATX6 <Enter>

 

But if you want the new setting to be a default, write it to

 

NVRAM at the same time, as in the following example. X7 is

 

substituted for the Xn value stored earlier. Any other setting

 

that was changed and can be saved to NVRAM will also be

 

saved.

 

AT X7 &W <Enter>

4-12 Data Mode Operations

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USRobotics V.34 AT I5 Enter, Customizing Nvram, AT &F2 &W Enter, AT M2 S10=40 &A2 &W Enter, ATX6 Enter, AT X7 &W Enter