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Card Type

Modem/Fax card

Chip Set

Unidentified

I/O Options

Line in(RJ-11), line out(RJ-11)

Maximum Modem Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

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

Fax Modulation Protocol

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

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

Function

Label

RJ-11 line

CN1

RJ-11 line

CN2

SERIAL PORT ADDRESS

Setting

JP1

JP2

í COM1 (3F8h)

Closed

Closed

COM2 (2F8h)

Open

Closed

COM3 (3E8h)

Closed

Open

COM4 (2E8h)

Open

Open

INTERRUPT

Setting

JP3

JP4

JP5

JP6

JP7

IRQ2

Open

Open

Open

Open

Closed

IRQ3

Open

Open

Open

Closed

Open

í IRQ4

Open

Open

Closed

Open

Open

IRQ5

Open

Closed

Open

Open

Open

IRQ7

Closed

Open

Open

Open

Open

SUPPORTED COMMAND SET

Basic AT Commands

AT, +++, A/

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

&C, &F, &P, &T, &V, &W, &Y, &Z

Extended AT Commands

\A, \B, \N

%C, %L, %Q

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S24, S25

S26, S27, S29, S30, S31, S32, S33, S36, S37, S38, S39, S40, S41

S46, S48, S82, S86, S91, S92, S95

Special Commands

#CID

+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

Auto-mode detection disabled

N1

Auto-mode detection enabled

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

Direct mode enabled

&Q5

V.42 error correction mode with fallback enabled

&Q6

Normal mode enabled

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

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.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

í &K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled

&K6

Hardware and software flow control enabled

GUARD TONE

Type:

Configuration

Format:

AT [cmds] &Gn [cmds]

Description:

Commands the modem to transmit a guard tone in V.22/V.22bis

Command

Function

&G0

Guard tone disabled

&G1

Guard tone disabled

&G2

1800Hz guard tone enabled

LINE TYPE

Type:

Configuration

Format:

AT [cmds] &Ln [cmds]

Description:

Selects line type

Command

Line Type

&L0

Switched line (PSTN/Dial-up)

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 firmware ID

I4

Reports reserved ID

I6

Reports data pump version

RTS/CTS

Type:

Configuration

Format:

AT [cmds] &Rn [cmds]

Description:

Selects RTS/CTS options

Command

Function

&R0

Reserved

&R1

CTS forced high, RTS is ignored.

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

AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Description:

Controls auto-retrain mode and fallback/fall-forward

Command

Function

í %E0

Auto-retrain disabled

%E1

Auto-retrain enabled

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal. (n=0-2)