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Card Type

Modem/Fax card

Chip Set

Unidentified

I/O Options

Line in(RJ-11), line out(RJ-11), microphone jack, speaker jack

Maximum Modem Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V34, V34+, V.FC

Fax Modulation Protocol

ITU-T V.17, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

Function

Label

RJ-11 line

CN1

Microphone

CN3

RJ-11 line

CN2

Speaker

CN4

USER CONFIGURABLE SETTINGS

Setting

Label

Position

í Stereo speaker configuration enabled

JP5

Closed

Mono speaker configuration enabled

JP5

Open

SERIAL PORT ADDRESS

Setting

S1/A

S1/B

S1/C

S1/D

COM1 (3F8h)

Open

Open

Closed

Closed

COM2 (2F8h)

Closed

Open

Open

Closed

COM3 (3E8h)

Open

Closed

Closed

Open

COM4 (2E8h)

Closed

Closed

Open

Open

í Plug & Play enabled

Open

Open

Open

Open

INTERRUPT

Setting

S2/A

S2/B

S2/C

S2/D

S2/E

S2/F

S2/G

IRQ3

Closed

Open

Open

Open

Open

Open

Open

IRQ4

Open

Closed

Open

Open

Open

Open

Open

IRQ5

Open

Open

Closed

Open

Open

Open

Open

IRQ7

Open

Open

Open

Closed

Open

Open

Open

IRQ10

Open

Open

Open

Open

Closed

Open

Open

IRQ11

Open

Open

Open

Open

Open

Closed

Open

IRQ12

Open

Open

Open

Open

Open

Open

Closed

í Plug & Play enabled

Closed

Closed

Closed

Closed

Closed

Closed

Closed

SUPPORTED COMMAND SET

Basic AT Commands

AT, +++, A/

A, E, H, M, O, P, Q, T, V, X, Y, Z

&C, &F, &G, &W, &Y, &Z

Extended AT Commands

\A, \B, \C, \G, \J, \K, \O, \U, \X, \Y, \Z

%A, %G

-J

"H

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22,

S23, S25, S27, S30, S31, S33, S37

Special Commands

+MS

Note: See MHI Help File for full command documentation.

AUTO-MODE DETECTION

Type:

Configuration

Format:

AT [cmds] Nn [cmds]

Description:

Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.

Command

Function

N0

When originating or answering; handshake only at DTE to modem rate

í N1

When originating or answering; handshake at DTE to modem rate. Modem can shift to a lower speed if necessary

AUXILIARY RELAY

Type:

Configuration

Format:

AT [cmds] &Jn [cmds]

Description:

Enables/disables auxiliary relay

Command

Jack Type

&J0

Auxiliary relay disabled

&J1

Auxiliary relay enabled when modem is off-hook

COMMUNICATION PROTOCOLS

Type:

Configuration

Format:

AT [cmds] Bn [cmds]

Description:

Selects the communication protocol for data calls

Command

Protocol

B0

CCITT mode

B1

Bell 212A at 300 or 1200bps

B2

V.23 at 1200bps transmit, 75bps receive

B3

V.23 at 75bps transmit, 1200bps receive

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects communications mode

Command

Mode

&M0

Asynchronous mode

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Qn [cmds]

Description:

Selects communications mode options

Command

Mode

&Q0

Asynchronous mode, serial port speed follows connect speed.

CONFIGURATION PROFILES

Type:

Immediate

Format:

AT [cmds] &Vn [cmds]

Description:

Displays active and stored configuration profiles

Command

Function

&V0

Displays active and stored configuration profile 0

&V1

Displays active and stored configuration profile 1

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

í&S0

DSR forced high

&S1

DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Function

í&D0

DTR override

&D1

DTR toggle causes online command mode

&D2

Normal DTR operations

&D3

Resets on receipt of DTR

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

DP

Pulse dialing enabled

DR

Answer mode enabled; originate mode disabled following handshake initiation.

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.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] Wn [cmds]

Description:

Enables selection of additional result codes.

Command

Function

í W0

Modem reports DTE response codes

W1

Modem reports DTE response codes

W2

Modem reports DCE response codes

W3

Modem reports DTE speed, modulation mode, error control, data compression, DCE speed

W4

Modem reports DTE protocol, data compression, and DTE speed

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

&K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

PULSE DIALING RATIO

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

í&P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports four digit product code

I1

Reports ROM checksum

I2

Reports internal memory test

I3

Reports device ID

I4

Reports internal ID

I5

Reports modem chip hardware configuration

I6

Reports country code

I7

Reports manufacturer firmware version

I8

Reports modem firmware version

I10

Reports modem board configuration

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

TEST MODES

Type:

Immediate

Format:

AT [cmds] &Tn

Description:

Selects test options

Command

Function

&T0

End current test

&T1

Begin local analog loopback test

&T4

Grant remote digital loopback request

&T5

Deny remote digital loopback request

&T6

Request remote digital loopback

&T7

Request remote digital loopback and self-test

&T8

Begin local analog loopback and self-test

TRELLIS CODING

Type:

Configuration

Format:

AT [cmds] &Un [cmds]

Description:

Enables/disables trellis coding

Command

Function

í&U0

V.32 trellis coding enabled

&U1

V.32 trellis coding disabled

AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Description:

Controls auto-retrain mode and fallback/fall-forward

Command

Function

%E0

Auto-retrain disabled

%E1

Auto-retrain enabled

CALLING TONE

Type:

Configuration

Format:

AT [cmds] -Cn [cmds]

Description:

Controls whether the DTE will allow the modem to send a 1300Hz calling tone when originating

Command

Function

-C0

Calling tone disabled

-C1

1300hz calling tone enabled

-C2

V.8 and 1300hz calling tone enabled

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Selects data compression

Command

Function

%C0

Data compression disabled

%C1

MNP5 enabled

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Description:

Controls the type of connection the modem will operate in

Command

Function

\N0

Normal mode enabled

\N1

Normal mode enabled

\N2

MNP mode enabled

í \N3

Auto-reliable mode enabled

\N4

V.42 reliable mode enabled

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Description:

Sets type of flow control used by modem

Command

Function

\Q0

Flow control disabled

\Q1

Bi-directional XON/XOFF flow control enabled

\Q2

CTS flow control by DCE enabled

\Q3

Bi-directional RTS/CTS flow control enabled

INACTIVITY TIMER

Type:

Configuration

Format:

AT [cmds] \Tn [cmds]

Range:

0-90

Unit:

1 second

Description:

Sets the length of time that the modem does not receive information before it disconnects.

V.42bis - MAXIMUM STRING LENGTH

Type:

Immediate

Format:

AT [cmds] "On [cmds]

Range:

6-250

Unit:

Characters

Description:

Selects string size for V.42bis compression. Default is 32.

BUFFER THRESHOLD SELECTION

Format

AT [cmds] +VBT=n [cmds]

Description:

Sets buffer threshold

CALLER ID SELECTION

Format

AT [cmds] +VCID=n [cmds]

Description:

Selects caller ID

VOICE COMMAND MODE SILENCE DETECTION

Format

AT [cmds] #VCSD=n [cmds]

Description:

Detects voice command mode silence

DISTINCTIVE RING SELECTION

Format

AT [cmds] +VDR=n [cmds]

Description:

Selects distinctive ring

EVENT REPORTING AND MASKING

Format

AT [cmds] +VEM=n [cmds]

Description:

Reports and masks events

SPEAKERPHONE MICROPHONE GAIN

Format

AT [cmds] +VGM=n [cmds]

Description:

Sets speakerphone microphone gain

RECEIVE GAIN

Format

AT [cmds] +VGR=n [cmds]

Description:

Selects receive gain

SPEAKERPHONE SPEAKER GAIN

Format

AT [cmds] +VGS=n [cmds]

Description:

Sets speakerphone speaker gain

VOLUME SELECTION

Format

AT [cmds] +VGT=n [cmds]

Description:

Selects volume

INITIALIZE PARAMETER

Format

AT [cmds] +VIP [cmds]

Description:

Sets voice initialization parameter

INACTIVITY TIMER

Format

AT [cmds] +VIT=n [cmds]

Description:

Sets DTE/DCE inactivity timer

RELAY/SPEAKER

Format

AT [cmds] +VLS=n [cmds]

Description:

Controls relay/speaker settings

AUTOMATIC HANG-UP

Format

AT [cmds] +VNH=n [cmds]

Description:

Controls automatic hang-up option

RINGBACK DROPPED

Format

AT [cmds] +VRA=n [cmds]

Description:

Determines amount of time before ringback is discontinued

RINGBACK NOT RECIEVED

Format

AT [cmds] +VRN=n [cmds]

Description:

Sets time for ringback to not appear

RECORD MODE

Format

AT [cmds] +VRX=n [cmds]

Description:

Determines record mode

SILENCE DETECTION

Format

AT [cmds] +VSD=n [cmds]

Description:

Detects quiet and silence

COMPRESSION METHOD

Format

AT [cmds] +VSM=n [cmds]

Description:

Selects compression method

SPEAKERPHONE ENABLE

Format

AT [cmds] +VSP=n [cmds]

Description:

Controls on/off of speakerphone

SPEAKERPHONE TYPE

Format

AT [cmds] #VSPS=n [cmds]

Description:

Selects speakerphone type

BEEP TONE DURATION TIMER

Format

AT [cmds] +VTD=n [cmds]

Description:

Sets the beep tone duration timer

DTMF AND TONE GENERATION

Format

AT [cmds] +VTS=n [cmds]

Description:

Controls DTMF and tone generation

PLAY MODE

Format

AT [cmds] +VTX=n [cmds]

Description:

Sets play mode