User's Manual

Company Confidential 25 Raveon Technologies
8.3 Setting a Parameter
To set a parameter in the M7-UC modem, enter the Command Mode as
described above. Then enter the proper AT command, a space, the parameter,
and then a carriage return. For Example, to set the address of the M7-UC
modem to 1234, enter the following command:
ATDT 1234 <CR>.
Once a Parameter is changed, the modem will begin using the new parameter as
soon as it exits the Command Mode and returns to its normal operation mode. If
the new parameter was saved to non-volatile memory using the ATSV command,
then the new parameter will be used as well the next time the M7-UC modem is
powered on.
If a parameter is changed, but the ATSV command is not issued, the new
parameter is used to operate the modem, but when power is turned off and back
on, upon powering up, the M7-UC will revert back to the previously saved
parameter value. If parametric changes are to be permanent, always issue the
ATSV command after all parameter changes have been made.
8.4 Reading a Parameter
To read the value of a particular setting, issue the command, with no parameter.
The modem will return the value followed by an “OK”. The modem’s OK
response is:
The value in ASCII decimal format.
A <CR> <LF> (<CD> = ASCII 0D, <LF> = ASCII 0A).
An “O”, “K”, <CR>, and <LF> sequence.
For example, if the user enters the command to read the M7-UC’s modem
address and its address was 1234, the user would issue the following command:
ATDT<cr>
and the modem will respond with:
1234 <CR> <LF> OK <CR> <LF>
To get on-line help with a command, enter the command and put a question
mark in for the parameter. For example, to see what the ATDT command is for,
type ATDT ?. The modem will respond by listing a brief description of the
command. To see a list of all commands, type HELP.
8.5 CONFIG Button
If certain parameters within the modem are modified in a manor that causes the
modem to cease functioning or if the user cannot enter the command mode via
the “+++” method described above, there is a small push button internal to the