CONNECTIONS
Purpose	Location	Purpose	Location
Line-in	CN1	Line-out	CN2

ADDRESS SELECT
COM/Address	SW1/1	SW1/2
í COM2/2F8h	Off	On
COM1/3F8h	Off	Off
COM3/3E8h	On	Off
COM4/2E8h	On	On

INTERRUPT SELECT
IRQ	SW1/3	SW1/4
í IRQ3	Off	On
IRQ2	On	On
IRQ4	Off	Off
IRQ5	On	Off

%A - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] %An [cmds]
Example:	AT M3 %A3 <CR>
Description	Sets the auto-reliable fall-back ASCII character. The default is 13.

%C - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Example:	AT &Z1 %C0 D5555555<CR>
Description	Enables/disables MNP 5 data compression.
Command		Function
í %C1		MNP 5 data compression enabled.
%C0		MNP 5 data compression disabled.

%E - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] %En [cmds]
Example:	AT M3 %E0 D5555555<CR>
Description	Enables/disables the auto-retrain function for V,22bis and V.32 protocols.
Command		Function
í %E1		Auto-retrain function enabled.
%E0		Auto-retrain function disabled.

%G - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] %Gn [cmds]
Example:	AT M3 %G0 D5555555<CR>
Description	Enables/disables the auto-fall-back/fall-forward function for V,22bis and V.32 protocols.
Command		Function
í %E0		Auto-fall-back/fall-forward function disabled.
%E1		Auto-fall-back/fall-forward function enabled.

\A - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \An [cmds]
Example:	AT M3 \An D5555555<CR>
Description	Sets the limits for the character block size.

\A - PROPRIETARY COMMAND
Command	Function
í \A3	256 characters.
\A0	64 characters.
\A1	128 characters.
\A2	192 characters.

\B - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Bn [cmds]
Example:	AT M3 \Bn D5555555<CR>
Description	Sets the transmit break length from 0 to 900 in 100ms increments. The default is 0ms (n = 0).

\C - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Cn [cmds]
Example:	AT M3 \Cn D5555555<CR>
Description	Sets the limits for the auto-reliable buffer.
Command		Function
í \C0		Auto-reliable buffer disabled.
\C1		Buffers characters for 4 seconds or until 200 characters are in the buffer.
\C2		Auto-reliable buffer disabled. Modem goes to normal mode if an auto-reliable character is received.

\G - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Gn [cmds]
Example:	AT M3 \Gn D5555555<CR>
Description	Enables/disables modem port flow control
Command		Function
í \G0		Port flow control disabled.
\G1		XON/XOFF port flow control enabled.

\J - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Jn [cmds]
Example:	AT M3 \Jn D5555555<CR>
Description	Enables/disables the serial port data transfer rate adjustment feature.
Command		Function
í \J0		Data transfer rate adjustment disabled (serial port allowable data transfer rate is constant).
\J1		Data transfer rate adjustment enabled (serial port data transfer rate depends on the data transfer rate established in the connection).

\K - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Kn [cmds]
Example:	AT M3 \Kn D5555555<CR>
Description	Sets the remote modem’s response to a break issued by the local modem.
Command		Function
í \K5 \K0, \K2, \K4 \K1 \K3		Local modem in connect state, reliable or normal mode: Nondestructive/non-expedited handling of buffered data. Remote modem goes into the command mode and does not return the break signal. Destructive, expedited handling of buffered data Non-destructive/expedited handling of buffered data.
í \K5, \K4 \K0, \K1 \K2, \K3		Local modem in command state, reliable or normal mode: Non-destructive/non-expedited handling of buffered data. Destructive/expedited handling of buffered data. Non-destructive/expedited handling of buffered data.
í \K5, \K1, \K3 \K0, \K2, \K4		Local modem in connect state, direct mode: Remote modem immediately returns break. Remote modem immediately returns break, then goes into the command state.
í \K5, \K4 \K0, \K1 \K2, \K3		Local modem in connect state, normal mode, break received at modem port, break sent to serial port: Non-destructive/non-expedited handling of buffered data. Destructive/expedited handling of buffered data. Non-destructive/expedited handling of buffered data.

\N - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Example:	AT M3 \Nn D5555555<CR>
Description	Selects the error-correction mode.
Command		Function
í \N3		V.42 auto-reliable mode enabled.
\N0		Normal mode enabled.
\N1		Direct mode enabled.
\N2		MNP reliable mode enabled.
\N4		V.42 reliable mode enabled.
\N5		LAPM to normal mode enabled.

\O - PROPRIETARY COMMAND
Type:	Immediate
Format:	AT [cmds] \O
Example:	AT \O <CR>
Description	Commands the modem to originate a RELIABLE link.

\Q - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Qn [cmds]
Example:	AT M3 \Qn D5555555<CR>
Description	Selects options for serial port flow control.
Command		Function
í \Q3		Bi-directional hardware flow control enabled.
\Q0		Flow control disabled.
\Q1		Bi-directional XON/XOFF flow control enabled.
\Q2		One-way hardware flow control enabled.

\T - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Tn [cmds]
Example:	AT M3 \Tn D5555555<CR>
Description	Sets the limit for the inactivity time-out function in minutes,
Command		Function
í \T0		Inactivity time-out function disabled.
\T(1 to 90)		Sets the time limit (in minutes) at which the inactivity time-out function is enabled.

\U - PROPRIETARY COMMAND
Type:	Immediate
Format:	AT [cmds] \U
Example:	AT \U <CR>
Description	Commands the modem to grant an auto-reliable link request.

\V - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Vn [cmds]
Example:	AT M3 \Vn D5555555<CR>
Description	Enables/disables modified result codes.
Command		Function
í \V0		Normal result code format.
\V1		Append "/ARQ" to verbose CONNECT result codes during an error-control connection.

\X - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] \Xn [cmds]
Example:	AT M3 \Xn D5555555<CR>
Description	Selects the XON/XOFF pass-through mode.

\X - PROPRIETARY COMMAND
Command	Function
í \X0	Process flow control characters only.
\X1	Process flow control characters, then pass-through to the local or remote modem.

\Y - PROPRIETARY COMMAND
Type:	Immediate
Format:	AT [cmds] \Y
Example:	AT \Y <CR>
Description	Commands the modem to go into the RELIABLE mode.

\Z - PROPRIETARY COMMAND
Type:	Immediate
Format:	AT [cmds] \Z
Example:	AT \Z <CR>
Description	Commands the modem to go into the NORMAL mode.

-C - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] -Cn [cmds]
Example:	AT M3 -Cn D5555555<CR>
Description	Enables/disables calling tone in data mode.
Command		Function
í -C0		Calling tone disabled.
-C1		Calling tone enabled.

-J - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] -Jn [cmds]
Example:	AT M3 -Jn D5555555<CR>
Description	Enables/disables the V.42 detect phase.
Command		Function
í -J1		V.42 detect phase enabled.
-J0		V.42 detect phase disabled.

-V - PROPRIETARY COMMAND
Type:	Immediate
Format:	AT [cmds] -V
Example:	AT -V <CR>
Description	Commands the modem to display the firmware version.

"H - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] "Hn [cmds]
Example:	AT M3 "Hn D5555555<CR>
Description	Selects options for V.42bis data compression.
Command		Function
í "H3		V.42bis enabled for both transmission and reception of data.
"H0		V.42bis disabled.
"H1		V.42bis enabled for transmission of data only.
"H2		V.42bis enabled for reception of data only.

"O - PROPRIETARY COMMAND
Type:	Configuration
Format:	AT [cmds] "On [cmds]
Example:	AT M3 "On D5555555<CR>
Description	Sets the limit to the number of characters in the V.42bis character string. The limit can include any number from 6 to 250 characters. The default is 32.

S14 - PROPRIETARY BIT-MAPPED REGISTER
Value Range:		Bit-mapped
Default:		170
Type:		Read/Write
In Stored Profile?:		Yes
Description:		Bit-mapped configuration register.
Bit	Value		Function
0	í 0		Not used
1	í 1 0		Off-line echo enabled (E1). Off-line echo disabled (E0).
2	í 0 1		Result codes enabled (Q0). Result codes disabled (Q1).
3	í 1 0		Verbose result codes enabled (V1). Numeric result codes enabled (V0).
4	í 0 1		Dumb mode disabled. Dumb mode enabled.
5	í 1 0		Pulse dialing enabled (P). Tone dialing enabled (T).
6	í 0		Not used.
7	í 1 0		Originate mode enabled. Answer enabled.

S21 - PROPRIETARY BIT-MAPPED REGISTER
Value Range:		Bit-mapped
Default:		48
Type:		Read/Write
In Stored Profile?:		Yes
Description:		Bit-mapped configuration register.
Bit	Value		Function
0	í 0		Not used.
1	í 0		Not used.
2	í 0 1		CTS signal follows RTS signal (&R0). CTS signal follows DCD signal (&R1).
4,3	í 10 00 01 11		Modem hangs up when a DTR signal is detected (&D2). Modem ignores DTR signal (&D0). Modem switches to command mode when a DTR signal is detected (&D1). Modem resets to defaults when a DTR signal is detected (&D3).
5	í 1 0		DCD enabled when a carrier signal is detected, disabled when carrier signal is lost (&C1). DCD enabled (&C0).
6	í 0 1		DSR enabled (&S0). DSR enabled at handshake initiation and disabled at hang-up initiation (&S1).
7	í 0 1		Long-space disconnect function disabled (Y0). Long-space disconnect function enabled (Y1).

S22 - PROPRIETARY BIT-MAPPED REGISTER
Value Range:		Bit-mapped
Default:		118
Type:		Read/Write
In Stored Profile?:		Yes
Description:		Bit-mapped configuration register.
Bit	Value		Function
1,0	í 10 00 01 11		Speaker set to medium volume (L2). Not used. Speaker set to low volume (L1 or L0). Speaker set to high volume (L3).

S22 - PROPRIETARY BIT-MAPPED REGISTER
Bit	Value	Function
3,2	í 01 00 10 11	Speaker enabled while dialing, enabled until carrier signal is detected, then disabled (M1). Speaker disabled (M0). Speaker enabled (M2). Speaker disabled while dialing, enabled until carrier signal is detected, then disabled (M3).
6,5,4	í 111 000 001 010 011 100 101 110	Full result codes, dial tone wait, and busy tone detect enabled (X4). Basic result codes enabled, blind dialing only (X0). Not used. Not used. Not used. Full result codes enabled, blind dialing only (X1). Full result codes and dial tone wait enabled (X2). Full result codes enabled, blind dialing only, busy tone detect enabled (X3).
7	í 0 1	39/61 make/break ratio enabled (&P0). 33/67 make/break ratio enabled (&P1).

S23 - PROPRIETARY BIT-MAPPED REGISTER
Value Range:		Bit-mapped
Default:		15
Type:		Read/Write
In Stored Profile?:		Yes
Description:		Bit-mapped configuration register.
Bit	Value		Function
0	í 1 0		Grant remote loopback request (&T4). Ignore remote loopback request (&T5).
3,2,1	í 111 000 010 011 100 101 110		38.4Kbps or 57.6Kbps data rate enabled. 0 - 600bps data rate enabled. 2400bps data rate enabled. 4800bps data rate enabled. 7200bps data rate enabled. 9600bps or 14.4Kbps data rate enabled. 19.2Kbps data rate enabled.
5,4	í 00 01 10 11		Even parity enabled. Space parity enabled. Odd parity enabled. Parity disabled.
7,6	í 00 01 10 11		Guard tone disabled (&G0). 550Hz guard tone enabled (&G1). 1800Hz guard tone enabled (&G2). Not used.

S27 - PROPRIETARY BIT-MAPPED REGISTER
Value Range:		Bit-mapped
Default:		0
Type:		Read/Write
In Stored Profile?:		Yes
Description:		Bit-mapped configuration register.
Bit	Value		Function
1,0	í 00 01 10 11		Asynchronous mode enabled (&Q0). Synchronous connect mode and asynchronous off-line command mode enabled (&Q1). Synchronous connect mode and asynchronous off-line command mode enabled (&Q1). Synchronous mode enabled.
2	í 0 1		Switched network line mode enabled (&L0). Leased-line mode enabled (&L1).
3	í 0		Not used.
5,4	í 00 01 10 11		Transmit clock generated by the modem (&X0). DTE generates clock (&X1). Modem generates clock from the receive carrier signal (&X2). Not used.
6	í 0 1		CCITT V.22 protocol enabled (B0). Bell 212A protocol enabled (B1).
7	í 0		Not used.