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COMSPHERE 3900 Series Modems
AT
Command
&Vn
View Configuration Options. Displays each configuration group within the
Active (Operating), Active (Saved), Customer 1, and Customer 2
configuration areas as well as the telephone numbers stores in directory
locations 1–24.
&V0
&V1
&V2
&V3
&V4
&Wn
Write (Save to Memory). Saves the current configuration options in
Active (Operating) to one of three configuration areas:
&W0
&W1
&W2
&Xn
Transmit Clock Source.
&X0
&X1
&X2
&Zn=x
Store Telephone Numbers. Modem saves the telephone numbers and
dial command modifiers (if any) entered for x (up to 40 characters in
length) in Directory Location n (1–24). For example, the command
AT&Z1 = 5551234 stores the telephone number 555-1234 into directory
location 1.
To clear a telephone number from a memory location, issue the &Zn=x
command without entering a telephone number.
\An
Maximum Frame Size.
\A0
\A1
\A2
\A3
\A4
\A5
\Cn
Error Control Negotiate Buffer.
\C0
\C1
\C2
14-12
Table 14-2
(8 of 10)
391x Series AT Commands
Description
Active (Operating) configuration options.
Active (Saved) configuration options.
Customer 1 configuration options.
Customer 2 configuration options.
Directory locations 1–24.
Saved to Active(Save).
Saved to Customer 1.
Saved to Customer 2.
Internal. Modem provides transmit clock source for
synchronous data (Pin 15).
External. Modem derives external transmit clock source
provided on Pin 24 for synchronous data.
Receive Clock Loop. Modem derives transmit clock source
from receive signal for synchronous data (Pin 17).
64 bytes.
128 bytes.
192 bytes.
256 bytes.
32 bytes.
16 bytes.
Disable.
Enable.
Disables and switches modem to Buffer mode.
September 1998
DCP LCD
Command
Sequence
None
Configure\Save
Configure\Edit\
DTE Interface
Call Setup\
Change
Directory
Configure\Edit\
V42/MNP/Buffer
Configure\Edit\
V42/MNP/Buffer
3910-A2-GN32-40
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