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Initialization strings, V.25bis applications, Synchronous leased-line applications – Paradyne 3825PLUS User Manual

Page 24: At&t exclusive dialing for datakit applications

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COMSPHERE 3825Plus Modem

2-6

January 1999

3825-A2-GB30-40

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