Company Confidential
15
Raveon Technologies Corp.
return. For Example, to set the address of the
M6
modem to 1234, enter the following
command:
ATDT 1234
<CR>
Once a Parameter is changed, the modem will begin using the new parameter and the
new parameter is saved to non-volatile.
5.4. 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
M6
’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
.
Many commands support the “
MIN
” and “
MAX
” parameters to read the minimum and
maximum allowable settings. For example, type
ATJF MAX
to find the maximum
value the CTS negation threshold may be set to.
5.5. CONFIG Button
If certain parameters within the modem are modified in a manner 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
M6
modem
to assist in this case. This CONFIG button may be pressed at any time, and forces
the modem into a known operational state. The CONFIG button is located inside the
modem. Remove the rear cover, exposing the two circuit boards. The button is in the
front edge of the radio modul
e’s circuit board.
The default settings that the modem will revert to when the CONFIG button is pressed
are:
1. Serial port 9600 baud, 8 data bits 1 stop, no parity
2. ATCT setting set to 60000 (60 second time-out)
3. Serial port on the front of the unit in RS232 mode, 9600bps, N/8/1.