COMSPHERE 3825Plus Modem
2-6
November 1996
3825-A2-GB30-20
3. To save changes, use the &W command:
TYPE:
AT&Wn
Where:
n is one of the following storage areas:
0 for Active (Saved)
1 for Customer 1
2 for Customer 2
PRESS:
Enter
The modem exits AT Recovery mode and returns to
its previous application environment. Only the
Active (Saved) area affects modem operation. To
move a Customer area to Active (Saved), use the Z
command. See Chapter 4 for more information.
Initialization Strings
An initialization string contains several AT commands
that are entered at once to program the modem for a
specific application.
The following initialization strings identify essential
AT commands that directly impact modem operation for a
particular application. If you need to modify these strings
for your application, make sure additional commands are
inserted somewhere in the middle of the initialization
string. Whenever an &L command is used, it must appear
at the end of an initialization string.
V.25bis Applications
For V.25bis HDLC (High-level Data Link Control)
dial-line operation, create an initialization string with the
following commands. Note that the character format can
be 8 data bits, no parity, and 1 stop bit; 7 data bits, odd
parity, and 1 stop bit; or 7 data bits, even parity, and
1 stop bit:
TYPE:
AT&F &D1 &S1 &M234 &W
PRESS:
Enter
For V.25bis bisync operation, create an initialization
string with the following commands. Note that the
character format must be 7 data bits, odd parity, and
1 stop bit:
TYPE:
AT&F &D1 &S1 &M233 &W
PRESS:
Enter
Synchronous Leased-Line Applications
For synchronous leased-line operation, create the
following initialization string with the following
commands:
TYPE:
AT&F &D1 &S1 S44=n S45=n S82=n
&M1 &W &Ln &W
Where:
n is the value for the AT command. Refer
to either Table 4-1 or Table 4-2 in
Chapter 4 to determine the best possible
values for these commands.
PRESS:
Enter
AT&T Exclusive Dialing
for DATAKIT Applications
For AT&T exclusive dialing for DATAKIT
applications, create an initialization string with the
following commands:
TYPE:
AT&F &C5 &D1 &S3 &R0 \D3 \Q1 \G1
S85=1 &M235 &W
PRESS:
Enter
