AT&T 7400B Plus User Manual page 141

DEFINITY Communications System
7400B Plus Data Module
User´s Guide
Command:
Function:
Type:
Arguments:
S-Register:
Example:
Comments:
See Also:
Command:
Function:
Type:
Arguments:
S-Register:
Example:
Comments:
See Also:
I
Request product code or ROM checksum.
immediate
The I command accepts one of three arguments as follows:
0 - The 7400B Plus displays the decimal number 249, followed
by a carriage return and line feed.
1 - The 7400B Plus displays the ROM checksum as two four-
digit hexadecimal values, followed by a carriage return and line
feed.
2 - The 7400B Plus displays OK, followed by a carriage return
and line feed.
none
ati0 ( )
Enter
In the example, the 7400B Plus will return its product ID code as
the value 249.
none
O
Return to the on-line mode.
immediate
No argument or an argument of 0 (zero) causes the 7400B Plus to
return from command mode to on-line mode, if a data call is still
active.
none
ato ( )
Enter
The 7400B Plus accepts an argument of 1 but treats it the same as
no argument or an argument of 0.
Chapter 3, "Configuration and Operation;" the +++ command in
this appendix.
APPENDIX A: AT COMMAND SET
Page A-10