IPTools.net.ua

Card Type

Modem (asynchronous)

Chipset

Unidentified

I/O Options

Microphone in, speaker out, voice, speakerphone

Maximum Data Rate

56Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation

U.S. Robotics x2

Fax Modulation

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

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I & II

Data Bus

Serial

CONNECTIONS

Function

Label

Function

Label

AC power in

CN1

Speaker out

CN4

Serial port via 9-pin mini-DIN

CN2

Microphone in

CN5

Telephone line out

CN3

POWER SWITCH

Setting

SW1

Standby; wait for incoming call

Position 1

Power is off

Position 2

Power is on

Position 3

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

TD

Red

Blinking

Modem is transmitting data

TD

Red

Off

Modem is not transmitting data

RD

Red

Blinking

Modem is receiving data

RD

Red

Off

Modem is not receiving data

OH

Red

On

Modem is off-hook

OH

Red

Off

Modem is on-hook

CD

Red

On

Carrier signal detected

CD

Red

Off

Carrier signal not detected

AA

Red

On

Auto-answer enabled

AA

Red

Off

Auto-answer disabled

AA

Red

Blinking

Phone is ringing

TR

Red

On

DTR signal is high

TR

Red

Off

DTR signal is low

POWER

Red

On

Power is on

POWER

Red

Off

Power is off

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, �comma�, A/

A, B, E, F, H, L, M, O, P, T, V, X, Z

&C, &D, &G, &P, &R, &S, &T, &W, &Z

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S38

BIT-MAPPED REGISTER S13

Format

AT [cmds] S13=n [cmds]

Default:

0

Range:

0 - 159

Description:

Controls DTR reset, DTR dialing, reset dialing, and MNP3.

Bit

Value

Function

0

í 0

1

Reset on low DTR.

1

í 0

1

Non-error-correcting mode transmit buffer set to 128 bytes.

2

í 0

1

Backspace and delete keys reversed.

3

í 0

1

DTR dialing enabled.

4

í 0

1

Reset dialing enabled.

6, 5

00

Not used.

7

í 0

1

Modem disconnects and enters command state when +++ is received.

BIT-MAPPED REGISTER S15

Format:

AT [cmds] S15=n [cmds]

Default:

0

Range:

0 - 255

Description:

Controls error correction and compression in selected protocols, MNP modes, and V.42 operation.

Bit

Value

Function

0

í 0

1

Error correction/compression disabled in V.22 mode.

1

í 0

1

Error correction/compression disabled in V.22bis mode.

2

í 0

1

Error correction/compression disabled in V.32 and V.32bis modes.

3

í 0

1

MNP handshake disabled.

4

í 0

1

MNP4 enabled.

5

í 0

1

MNP3 enabled.

6

í 0

1

MNP configured for non-compatible modems.

7

í 0

1

V.42 disabled.

BIT-MAPPED REGISTER S27

Format:

AT [cmds] S27=n [cmds]

Default:

0

Range:

0 - 191

Description:

Controls V.21/Bell 103A, V.32 encoding and modulation, V.32bis modulation, V.42 answer tone and selective reject, and 9600 result codes.

Bit

Value

Function

0

í 0

1

V.21 enabled.

1

í 0

1

V.32 trellis coding disabled.

2

í 0

1

V.32 modulation disabled.

3

í 0

1

2100Hz answer tone disabled.

4

í 0

1

Fallback to V.23 enabled.

5

í 0

1

V.32bis modulation disabled.

6

0

Not used.

7

í 0

1

Force 9600 result codes.

BIT-MAPPED REGISTER S32

Format:

AT [cmds] S32=n [cmds]

Default:

0

Range:

0 - 59

Description:

Controls V.8 protocol and options, and V.34 and V.FC modulation protocols.

Bit

Value

Function

0

í 0

1

V.8 Call Indicate enabled.

1

í 1

V.8 enabled.

2

í 0

1

V.FC modulation disabled.

3

í 0

1

V.34 modulation disabled.

4

í 0

1

V.34 modulation at 31.2Kbps and 33.6Kbps disabled.

BREAK LENGTH

Type:

Register

Format:

AT [cmds] S21=n [cmds]

Default:

10

Range:

0 - 255

Unit:

10 ms

Description:

Sets the length of error correction mode breaks sent from DCE to DTE.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Description:

Configures action of break signal.

Command

Function

&Y0

Break empties buffer.

í &Y1

Break empties buffer and is sent immediately.

&Y2

Break does not empty buffer and is sent immediately.

COMPRESSION MODE

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Selects the type of data compression that will be used.

Command

Function

&K0

Data compression disabled.

í &K1

Auto-detect compression mode.

&K2

Data compression enabled.

&K3

MNP5 data compression only enabled.

CONNECTION SPEED LOWER LIMIT

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Description:

Sets slowest allowed connection speed if &N is set to 1 or higher.

Command

Function

&U0

No minimum connect speed.

&U1

Set minimum connect speed to 300bps.

&U2

Set minimum connect speed to 1200bps.

&U3

Set minimum connect speed to 2400bps.

&U4

Set minimum connect speed to 4800bps.

&U5

Set minimum connect speed to 7200bps.

&U6

Set minimum connect speed to 9600bps.

&U7

Set minimum connect speed to 12Kbps.

&U8

Set minimum connect speed to 14.4Kbps.

&U9

Set minimum connect speed to 16.8Kbps.

&U10

Set minimum connect speed to 19.2Kbps.

&U11

Set minimum connect speed to 21.6Kbps.

CONNECTION SPEED LOWER LIMIT (CON'T)

Command

Function

&U12

Set minimum connect speed to 24Kbps.

&U13

Set minimum connect speed to 26.4Kbps.

&U14

Set minimum connect speed to 28.8Kbps.

&U15

Set minimum connect speed to 31.2Kbps.

&U16

Set minimum connect speed to 33.6Kbps.

&U17

Set minimum connect speed to 32Kbps.

&U18

Set minimum connect speed to 36Kbps.

&U19

Set minimum connect speed to 40Kbps.

&U20

Set minimum connect speed to 44Kbps.

&U21

Set minimum connect speed to 48Kbps.

&U22

Set minimum connect speed to 49.3Kbps.

&U23

Set minimum connect speed to 50.6Kbps.

&U24

Set minimum connect speed to 52Kbps.

&U25

Set minimum connect speed to 53.3Kbps.

&U26

Set minimum connect speed to 54.6Kbps.

&U27

Set minimum connect speed to 56Kbps.

&U28

Set minimum connect speed to 57.3Kbps.

&U29

Set minimum connect speed to 58.6Kbps.

&U30

Set minimum connect speed to 60Kbps.

&U31

Set minimum connect speed to 61.3Kbps.

CONNECTION SPEED UPPER LIMIT

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Description:

Sets required connection speed if &U is set to 0; otherwise, sets fastest allowed connection speed.

Command

Function

&N0

No maximum connect speed.

&N1

Set maximum connect speed to 300bps.

&N2

Set maximum connect speed to 1200bps.

&N3

Set maximum connect speed to 2400bps.

&N4

Set maximum connect speed to 4800bps.

&N5

Set maximum connect speed to 7200bps.

&N6

Set maximum connect speed to 9600bps.

&N7

Set maximum connect speed to 12Kbps.

&N8

Set maximum connect speed to 14.4Kbps.

&N9

Set maximum connect speed to 16.8Kbps.

&N10

Set maximum connect speed to 19.2Kbps.

&N11

Set maximum connect speed to 21.6Kbps.

&N12

Set maximum connect speed to 24Kbps.

&N13

Set maximum connect speed to 26.4Kbps.

&N14

Set maximum connect speed to 28.8Kbps.

&N15

Set maximum connect speed to 31.2Kbps.

CONNECTION SPEED UPPER LIMIT (CON'T)

Command

Function

&N16

Set maximum connect speed to 33.6Kbps.

&N17

Set maximum connect speed to 32Kbps.

&N18

Set maximum connect speed to 36Kbps.

&N19

Set maximum connect speed to 40Kbps.

&N20

Set maximum connect speed to 44Kbps.

&N21

Set maximum connect speed to 48Kbps.

&N22

Set maximum connect speed to 49.3Kbps.

&N23

Set maximum connect speed to 50.6Kbps.

&N24

Set maximum connect speed to 52Kbps.

&N25

Set maximum connect speed to 53.3Kbps.

&N26

Set maximum connect speed to 54.6Kbps.

&N27

Set maximum connect speed to 56Kbps.

&N28

Set maximum connect speed to 57.3Kbps.

&N29

Set maximum connect speed to 58.6Kbps.

&N30

Set maximum connect speed to 60Kbps.

&N31

Set maximum connect speed to 61.3Kbps.

DIAL

Type:

Immediate

Format:

AT [cmds] D<#>;[cmds]

Description:

Dials the telephone number indicated according to any modifiers included in the string.

Command

Function

DL

Re-dial last number.

DP

Pulse dialing enabled.

DR

Answer mode enabled; originate mode disabled following handshake initiation.

DSn

Dial stored telephone number n.

DT

Tone dialing enabled.

DW

Dialing resumed following dial tone detection.

D,

Dialing paused for amount of time specified in S8 register.

D/

Dialing paused for 1/8 second.

D!

Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.

D@

Wait for Quiet 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.

DISPLAY HELP SCREEN - AMPERSAND

Type:

Configuration

Format:

AT [cmds] &$ [cmds]

Description:

Displays the help screen on the AT& commands.

DISPLAY HELP SCREEN - BASIC

Type:

Configuration

Format:

AT [cmds] $ [cmds]

Description:

Displays the basic help screen.

DISPLAY HELP SCREEN - DIAL

Type:

Configuration

Format:

AT [cmds] D$ [cmds]

Description:

Displays the help screen on the dialing commands.

DISPLAY HELP SCREEN - REGISTERS

Type:

Configuration

Format:

AT [cmds] S$ [cmds]

Description:

Displays the help screen for S registers.

DISPLAY INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays modem properties.

Command

Function

I0

Displays product identification code.

I1

Tests and displays ROM checksum result.

I2

Tests and displays RAM checksum result.

I3

Displays product type.

I4

Displays current command settings.

I5

Displays current NVRAM settings.

I6

Displays link diagnostics.

I7

Displays product configuration.

I10

Displays virtual device driver configuration.

I11

Displays current connection�s statistics for V.34 mode.

ERROR CORRECTION MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects active error correction protocols.

Command

Function

&M0

Normal mode only.

í &M4

Auto-detect mode.

&M5

Error correction mode only.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] &An [cmds]

Description:

Selects extended result codes.

Command

Function

&A0

Extended result codes disabled.

&A1

Error correction result codes enabled.

&A2

V.32 result code enabled.

í &A3

Error correction and compression result codes enabled.

FACTORY PROFILE

Type:

Immediate

Format:

AT [cmds] &Fn [cmds]

Description:

Resets the modem to the indicated factory defaults.

Command

Function

&F0

Reset modem to factory generic profile.

&F1

Reset modem to factory hardware flow control profile.

&F2

Reset modem to factory software flow control profile.

FLOW CONTROL CHARACTER - XOFF

Type:

Register

Format:

AT [cmds] S23=n [cmds]

Default:

19

Range:

0 - 127

Unit:

1 ASCII character

Description:

Sets the character used to represent XOFF.

FLOW CONTROL CHARACTER - XON

Type:

Register

Format:

AT [cmds] S22=n [cmds]

Default:

17

Range:

0 - 127

Unit:

1 ASCII character

Description:

Sets the character used to represent XON.

FLOW CONTROL - MODEM-TO-MODEM

Type:

Configuration

Format:

AT [cmds] &In [cmds]

Description:

Selects the type of modem-to-modem flow control used.

Command

Function

í &I0

Software flow control disabled.

&I1

XON/XOFF pass-through enabled.

&I2

XON/XOFF pass-through disabled.

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] &Hn [cmds]

Description:

Sets type of flow control used by modem.

Command

Function

&H0

Flow control disabled.

í &H1

CTS/RTS flow control enabled.

&H2

XON/XOFF flow control enabled.

&H3

CTS/RTS and XON/XOFF flow control enabled.

INACTIVITY TIMER

Type:

Register

Format

AT [cmds] S19=n [cmds]

Default:

0

Range:

0 - 255

Unit:

1 minute

Description:

Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process.

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Sets operation of serial port speed.

Command

Function

&B0

Serial speed follows connect speed.

í &B1

Serial speed locked.

&B2

Serial speed locked in error correction mode only.

MODE SELECTION

Type:

Immediate

Format:

AT [cmds] #CLS=n [cmds]

Description:

Selects which mode the modem will operate in.

Command

Function

#CLS=0

Modem will operate in data mode.

#CLS=1

Modem will operate in fax class 1 mode.

#CLS=2

Modem will operate in fax class 2 mode.

#CLS=8

Modem will operate in voice mode.

PROFILE ON POWER-UP

Type:

Configuration

Format:

AT [cmds] Yn [cmds]

Description:

Selects the profile that the modem will reset to on power-up.

Command

Function

í Y0

Modem resets to user profile 0 on power-up.

Y1

Modem resets to user profile 1 on power-up.

Y2

Modem resets to factory generic profile on power-up.

Y3

Modem resets to factory hardware flow control profile on power-up.

Y4

Modem resets to factory software flow control profile on power-up.

REPEAT PREVIOUS COMMAND REPEATEDLY

Type:

Immediate

Format:

A>

Description:

Repeats the previous command up to ten times.

Note:

Do not precede this command with AT, or follow it with <CR>.

RESET MODEM

Type:

Configuration

Format:

AT [cmds] Zn [cmds]

Description:

Resets the modem to the profile indicated.

Command

Function

í Y0

Modem resets to user profile specified by the Y command.

Y1

Modem resets to user profile 0.

Y2

Modem resets to user profile 1.

Y3

Modem resets to factory generic profile.

Y4

Modem resets to factory hardware flow control profile.

Y5

Modem resets to factory software flow control profile.

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE.

Command

Function

í Q0

Result codes enabled.

Q1

Result codes disabled.

Q2

Result codes enabled in originate mode only.

Q3

Result codes enabled in answer mode only.

SPEAKERPHONE VOLUME

Type:

Register

Format:

AT [cmds] S31=n [cmds]

Default:

128

Range:

Unidentified

Unit:

Unidentified

Description:

Sets the volume level for speakerphone operation.

SPEAKERPHONE VOLUME - MICROPHONE

Type:

Configuration

Format:

AT [cmds] #VGT=n [cmds]

Default:

230

Range:

0 - 255

Unit:

Unidentified

Description:

Sets the volume level for the microphone during speakerphone operation.

SPEAKERPHONE VOLUME - SPEAKER

Type:

Configuration

Format:

AT [cmds] #VGR=n [cmds]

Default:

128

Range:

0 - 255

Unit:

Unidentified

Description:

Sets the volume level for the speaker during speakerphone operation.

TONE DIALING TEST

Type:

Register

Format:

AT [cmds] S16=n [cmds]

Description:

Begins a tone dialing test.

Command

Function

í S16=0

Tone dialing test disabled.

S16=2

Tone dialing test enabled.

V.21 ANSWER MODE FALLBACK TIMER

Type:

Register

Format:

AT [cmds] S29=n [cmds]

Default:

20

Range:

Unidentified

Unit:

.1 second

Description:

The function of this register is unidentified.

V.32 HANDSHAKE TIME

Type:

Register

Format:

AT [cmds] S28=n [cmds]

Default:

8

Range:

0 - 255

Unit:

.1 second

Description:

Sets the length of the V.32 handshake phase. Setting S28 to a value of 255 means that the modem will only attempt to make connections with V.32 at 9600bps.

V.34 MAPPING

Type:

Register

Format:

AT [cmds] S34=n [cmds]

Default:

0

Range:

0 - 255

Description:

Controls V.34 mapping, non-linear coding, transmit level deviation, pre-emphasis, and pre-coding.

Bit

Value

Function

0

í 0

1

8S-2D map disabled.

1

í 0

1

16S-4D map disabled.

2

í 0

1

32S-2D map disabled.

3

í 0

1

64S-4D map disabled.

4

í 0

1

Non-linear coding disabled.

5

í 0

1

Transmit level deviation disabled.

6

í 0

1

Pre-emphasis disabled.

7

í 0

1

Pre-coding disabled.

V.34 OPTIONS

Type:

Register

Format:

AT [cmds] S33=n [cmds]

Default:

0

Range:

0 - 191

Description:

Controls V.34 baud rate and shaping.

Bit

Value

Function

0

í 0

1

2400 baud rate disabled.

1

í 0

1

2743 baud rate disabled.

2

í 0

1

2800 baud rate disabled.

3

í 0

1

3000 baud rate disabled.

4

í 0

1

3200 baud rate disabled.

5

í 0

1

3429 baud rate disabled.

6

0

Not used.

7

í 0

1

Shaping disabled.

VOICE DEVICE

Type:

Configuration

Format:

AT [cmds] #VLS=n [cmds]

Description:

Selects the I/O device for the DSP chip.

Command

Function

í #VLS=0

Telephone line and handset used for voice I/O.

#VLS=6

Speakerphone used for voice I/O.