Digicom 3911, 3910 operation manual A3, C0

COMSPHERE 3900 Series Modems

Table 14-2

(8 of 10)

391x Series AT Commands

AT		Description	DCP LCD
			Command
Command
			Sequence
&Vn	View Configuration Options. Displays each configuration group within the		None
	Active (Operating), Active (Saved), Customer 1, and Customer 2
	configuration areas as well as the telephone numbers stores in directory
	locations 1–24.
	&V0	Active (Operating) configuration options.
	&V1	Active (Saved) configuration options.
	&V2	Customer 1 configuration options.
	&V3	Customer 2 configuration options.
	&V4	Directory locations 1–24.
&Wn	Write (Save to Memory). Saves the current configuration options in		Configure\Save
	Active (Operating) to one of three configuration areas:
	&W0	Saved to Active(Save).
	&W1	Saved to Customer 1.
	&W2	Saved to Customer 2.
&Xn	Transmit Clock Source.		Configure\Edit\
	&X0	Internal. Modem provides transmit clock source for	DTE Interface
		synchronous data (Pin 15).
	&X1	External. Modem derives external transmit clock source
		provided on Pin 24 for synchronous data.
	&X2	Receive Clock Loop. Modem derives transmit clock source
		from receive signal for synchronous data (Pin 17).
&Zn=x	Store Telephone Numbers. Modem saves the telephone numbers and		Call Setup\
	dial command modifiers (if any) entered for x (up to 40 characters in		Change
	length) in Directory Location n (1–24). For example, the command		Directory
	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.		Configure\Edit\
	\A0	64 bytes.	V42/MNP/Buffer
	\A1	128 bytes.
	\A2	192 bytes.
	\A3	256 bytes.
	\A4	32 bytes.
	\A5	16 bytes.
\Cn	Error Control Negotiate Buffer.		Configure\Edit\
	\C0	Disable.	V42/MNP/Buffer
	\C1	Enable.
	\C2	Disables and switches modem to Buffer mode.

14-12 September 1998 3910-A2-GN32-40