Card Type	Modem (asynchronous)
Chip Set	Unidentified
I/O Options	Fast’RVu connectors (2)
Maximum Modem Rate	33.6Kbps
Maximum Fax Rate	14.4Kbps
Data Modulation Protocol	Bell 103/212A V.34, V.32bis, V.32, V.22bis, V.21
Fax Modulation Protocol	ITU-T V.17, V.29, V.27ter, V.21 CH2
Error Correction/Compression	V.42, V.42bis, MNP5
Fax Class	Class I
Data Bus	External

CONNECTIONS
Function	Label		Function		Label
Line in (RJ-11)		CN1		Speaker out		CN4
Line out (RJ-11)		CN2		RS-232/422		CN5
Microphone		CN3		DC power		CN6

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
RD	Unidentified	On	Modem is receiving data
RD	Unidentified	Off	Modem is not receiving data
SD	Unidentified	On	Modem is transmitting data
SD	Unidentified	Off	Modem is not transmitting data
CD	Unidentified	On	Carrier signal detected
CD	Unidentified	Off	Carrier signal not detected
OH	Unidentified	On	Modem is off-hook
OH	Unidentified	Off	Modem is on-hook
TR	Unidentified	On	DTR signal is high
TR	Unidentified	Off	DTR signal is low
RI	Unidentified	On	The modem is receiving an incoming call
RI	Unidentified	Off	The modem is not receiving an incoming call

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, A/

A, E, H, M, O, S, V, X, Z

&F, &V, &W, &Y, &Z

Extended AT Commands

\K, \Q

%A

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S25, S26, S38

Note: See MHI Help File for full command documentation.

AUTO FALLFORWARD/FALLBACK
Type:	Configuration
Format:	AT [cmds] &An [cmds]
Description:	Controls auto fallforward/fallback
Command	Function
í &A0	Auto fallforward/fallback disable
&A1	Auto fallforward/fallback enable

DATA CARRIER DETECT (DCD)
Type:	Configuration
Format:	AT [cmds] &Cn [cmds]
Description:	Selects whether the DCD option is enabled or disabled
Command	Function
í &C0	DCD enabled
&C1	DCD enabled after carrier signal detected
&C2	Force DCD on and toggle DCD on disconnect

DATA SET READY (DSR)
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Selects DSR options
Command	Function
&S0	DSR forced high, off at disconnect
í &S1	DSR forced high in data or online mode, off in command or idle mode
&S2	DSR follows carrier detect
&S3	DSR is forced high in all modes

DATA TERMINAL READY (DTR)
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Selects modem response to DTR
Command	Function
í &D0	Modem does not respond to DTR
&D1	Modem goes to command mode after DTR goes is off
&D2	Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.
&D3	Modem is initialized after DTR goes off

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [cmds]
Description:	Dials telephone number according to any modifiers included in the string
Note:	Any combination of modifiers can be used to produce the desired dial functions in sequence.
Command	Function
DL	Re-dial last number
DP	Pulse dialing enabled
DS=n	Dial stored telephone number n
DT	Tone dialing enabled/Pulse dialing disabled
DW	Dialing resumed following dial tone detection
D,	Dialing paused for amount of time specified in S8 register
D!	Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.
D@	Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

JACK TYPE
Type:	Configuration
Format:	AT [cmds] &Hn [cmds]
Description:	Selects maximum connect speed
Command	Jack Type
í &H0	Auto-detect
&H1	V.34
&H2	V.32bis automatic
&H3	V.32bis only
&H4	V.32 automatic
&H5	V.32 only
&H6	V.22 only (2400-1200bps)
&H7	V.22 only (1200bps)
&H8	Bell 212 only
&H9	Bell 103 only
&H10	V.21 only

MODEM TO MODEM SPEED
Type:	Configuration
Format:	AT [cmds] &Gn [cmds]
Description:	Sets the modem to modem speed
Command	Function
&G5	4.8Kbps
&G6	7.2Kbps
&G7	9.6Kbps
&G8	12.0Kbps
&G9	14.4Kbps
&G10	16.8Kbps
&G11	19.2Kbps
&G12	21.6Kbps
&G13	24.0Kbps
&G14	26.4Kbps
&G15	28.8Kbps
&G16	31.2Kbps
í &G17	33.6Kbps

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports product code
I1	Reports 000
I2	Returns OK or ERROR
I3	Report firmware revision number
I4	Report configuration settings

RESULT CODES
Type:	Configuration
Format:	AT [cmds] Qn [cmds]
Description:	Enables modem to send result codes to the DTE
Command	Function
í Q0	Result code sending enabled
Q1	Result code sending disabled
Q2	Call progress messages on originate

SPEAKER VOLUME
Type:	Configuration
Format:	AT [cmds] Ln [cmds]
Description:	Controls speaker volume
Command	Function
L0	Low volume setting
L1	Low volume setting
í L2	Medium volume setting
L3	Highest volume setting

TRELLIS CODING
Type:	Immediate
Format:	AT [cmds] &Un
Description:	Controls trellis coding
Command	Function
&U0	Trellis coding enable
&U1	Trellis coding disabled

ANSWER MODE
Type:	Configuration
Format:	AT [cmds] %On [cmds]
Description:	Sets the answer mode
Command	Function
%O0	Answer mode if ringing
%O1	Force to answer mode
%O2	Automatic answer in originate mode

CHARACTER ABORT DELAY
Type:	Configuration
Format:	AT [cmds] %Kn [cmds]
Description:	Sets the delay before character abort
Command	Function
%K0	Enable 2 second delay
%K1	Disable delay

CHARACTER LENGTH
Type:	Configuration
Format:	AT [cmds] \Bn [cmds]
Description:	Sets the character length
Command	Function
\B0	6 data bits, no parity, 1 stop bit
\B1	7N1
\B2	7P1
\B3	8N1
\B4	7P2
\B5	8P1

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Description:	Selects data compression
Command	Function
%C0	Data compression disabled
%C1	Data compression enabled

CONNECT AND PROTOCOL
Type:	Configuration
Format:	AT [cmds] \Vn [cmds]
Description:	Sets the connect and protocol message functions
Command	Function
\V0	Connect and protocol message reports modem to modem speed
\V1	Connect and protocol message reports computer to modem speed
\V2	Connect message reports computer to modem speed/V.42 error correction
\V3	Connect message reports computer to modem speed

CONNECT MODE
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Description:	Controls the type of connection the modem will operate in
Command	Function
\N0	Normal operation
\N1	Direct operation
\N2	MNP connection only
\N3	V.42 LAPM, MNP or normal mode
\N4	V.42 LAPM connection only
\N5	V.42 LAPM or MNP mode
\N6	Simulated controlled carrier

DTR
Type:	Immediate
Format:	AT [cmds] %Zn [cmds]
Description:	Controls the DRT function
Command	Function
%Z0	Ignore DTR signal toggle
%Z1	Dial stored phone number (0-3) on DTR toggle
%Z2	Attempt to connect on DTR toggle

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] \Gn [cmds]
Description:	Selects modem port flow control
Command	Function
\G0	Flow control disabled
\G1	XON/XOFF flow control
\G2	XON/XOFF flow control only for transmitting data
\G3	XON/XOFF flow control with pass-through

PARITY
Type:	Configuration
Format:	AT [cmds] \Pn [cmds]
Description:	Sets parity
Command	Function
\P0	Even
\P1	Space
\P2	Odd
\P3	Mark
\P4	Automatic

RETRAIN
Type:	Immediate
Format:	AT [cmds] %Q [cmds]
Description:	Controls the retrain
Command	Function
%Q0	Disable retrain
%Q1	Attempt up to 3 retrains and disconnect if unsuccessful
%Q2	Retrain until signal quality is good

SPEED
Type:	Configuration
Format:	AT [cmds] \Tn [cmds]
Description:	Sets the computer to modem speed
Command	Function
\T0	Autobaud
\T1	Set to last AT command entry
\T2	300bps
\T3	1200bps
\T4	2400bps
\T5	4800bps
\T6	7200bps
\T7	9600bps
\T8	12.0Kbps
\T9	14.4Kbps
\T10	16.8Kbps
\T11	19.2Kbps
\T12	21.6Kbps
\T13	24.0Kbps
\T14	26.4Kbps
\T15	28.8Kbps
\T16	31.2Kbps
\T17	33.6Kbps
\T18	38.4Kbps
\T19	57.6Kbps
\T20	76.8Kbps
\T21	115.2Kbps

TIMEOUT
Type:	Configuration
Format:	AT [cmds] \Cn [cmds]
Description:	Sets timeout, fallback, data buffer
Command	Function
\C0	Timeout and fallback, speed buffer, no data buffer
\C1	Timeout and fallback, speed buffer, buffer receive data
\C2	Auto reliable, fallback with fallback character, speed buffer, no receive data buffer
\C3	Timeout and fallback, ITU-T V.14, buffer receive data
\C4	Timeout and fallback with fallback character, ITU-T V.14, no data buffer

RETRANSMISSION COUNTER
Type:	Register
Format	AT [cmds] S70=n [cmds]
Default:	100
Range:	0-255
Description:	Sets the number of retransmission tries