IPTools.net.ua

Modem Type

Data (asynchronous)/Fax

Maximum Data Rate

14.4Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

PCMCIA Type II

Fax Class

Class I & II

Data Modulation Protocol

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

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

AUTO-RETRAIN - FALLBACK/FALLFORWARD

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Example:

AT %E1 <CR>

Description:

Controls auto-retrain mode and fallback/fall forward.

Command

Function

Auto-retrain disabled.

%E1

Auto-retrain enabled.

%E2

Fallback/fall forward enabled.

BIT-MAPPED REGISTER S14

Format

AT [cmds] S14? [cmds]

Example:

ATS14?<CR>

Default:

Read only

Range:

0-174

Unit:

Bit-mapped

Description:

Controls echo, result codes, result code display, dial mode, and answer/originate mode.

Bit

Value

Meaning

0

0

Not used.

1

0

Command echo enabled.

2

1

Result codes disabled.

3

0

Display result codes in verbose format.

4

0

Not used.

5

1

Pulse dial enabled.

6

0

Not used.

7

0

Originate mode enabled.

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21? [cmds]

Example:

ATS21?<CR>

Default:

Read only

Range:

0 - 124

Unit:

Bit-mapped

Description:

Selects CTS signal, low DTR action, DCD signal, DSR signal, and the Long Space Disconnect function.

Bit

Value

Meaning

1, 0

0

Not used.

2

0

CTS follows RTS.

4, 3

00

01

11

Modem is initialized on low DTR.

5

0

DCD normal.

6

1

DSR normal.

7

1

Long Space Disconnect function enabled.

BIT-MAPPED REGISTER S22

Format

AT [cmds] S22? [cmds]

Example:

ATS22?<CR>

Default:

Read only

Range:

0-127

Unit:

Bit-mapped

Description:

Controls speaker volume and controls, and limits results codes.

Bit

Value

Meaning

1, 0

00

10

11

High level volume.

3, 2

00

10

11

Speaker on during handshake.

6, 5, 4

000

100

101

110

All result codes enabled.

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23? [cmds]

Example:

ATS23?<CR>

Default:

Read only

Range:

0-255

Unit:

Bit-mapped

Description:

Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone.

Bit

Value

Meaning

0

0

Remote digital loopback allowed.

3, 2, 1

000

001

010

100

101

110

Sets serial port speed to 19200bps.

5,4

00

01

10

No Parity.

7, 6

01

10

Guard tone 1800Hz enabled.

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27? [cmds]

Example:

AT S27?<CR>

Default:

Read only

Range:

0 - 127

Unit:

Bit-mapped

Description:

Selects async mode, and ITU-T/Bell modes.

Bit

Value

Meaning

3, 1, 0

10

Normal Asynchronous mode.

5, 4, 2

0

Not used.

6

0

Bell mode.

BIT-MAPPED REGISTER S28

Format

AT [cmds] S28? [cmds]

Example:

AT S28?<CR>

Default:

Read only

Range:

0 - 192

Unit:

Bit-mapped

Description:

Controls MNP10 link negotiation.

Bit

Value

Meaning

5 - 0

0

Not used.

7, 6

01

11

Link will be negotiated at 4800bps.

BIT-MAPPED REGISTER S31

Format

AT [cmds] S31? [cmds]

Example:

ATS31?<CR>

Default:

Read only

Range:

0-15

Unit:

Bit-mapped

Description:

Controls auto-baud function and result codes.

Bit

Value

Meaning

0

0

Not used.

1

0

Auto-baud enabled.

3, 2

01

10

DCE speed displayed in result codes.

5 - 4

0

Not used.

7 - 6

Not used.

BIT-MAPPED REGISTER S40

Format

AT [cmds] S40? [cmds]

Example:

AT S40?<CR>

Default:

Read only

Range:

0 - 65

Unit:

Bit-mapped

Description:

Controls MNP10 data compression, power level adjustment, break type, and MNP block size.

Bit

Value

Meaning

1, 0

00

10

MNP10 enabled, except during V.42 answer detection.

2

1

Power level adjustment enabled.

5 - 3

000

001

010

011

100

Displays \K5.

6, 7

00

10

11

MNP block size is 256 characters.

BIT-MAPPED REGISTER S41

Format

AT [cmds] S41? [cmds]

Example:

ATS41?<CR>

Default:

Read only

Range:

0 - 255

Unit:

Bit-mapped

Description:

Selects compression, auto-retrain, flow control, and MNP mode.

Bit

Value

Meaning

1, 0

00

01

10

MNP5 and V.42bis enabled.

6, 2

01

10

Fallback/fall forward enabled.

3

1

Flow control enabled.

4

1

Block mode for MNP.

5

0

Not used.

7

0

MNP10 at 2400 and 1200bps enabled.

BREAK SEND

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Example:

AT \B3 &W<CR>

Default:

3

Range:

1-9

Unit:

.1 second

Description:

Sends break to modem.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K1 <CR>

Description:

Configures action of break signal.

Command

Break from DTE

Modem receives \B

Break from remote modem

\K0

Enter command mode, do not send break to remote modem.

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to DTE.

\K1

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to DTE.

\K2

Enter command mode, do not send break to remote modem.

Send break to remote modem immediately.

Send break to DTE immediately.

\K3

Send break to remote modem immediately.

Send break to remote modem immediately.

Send break to DTE immediately.

\K4

Enter command mode, do not send break to remote modem.

Send break to remote modem with transmitted data.

Break sent with received data to the DTE.

Send break with transmitted data.

Send break to remote modem with transmitted data.

Break sent with received data to the DTE.

CELLULAR TRANSMISSION LEVEL

Type:

Register

Format:

AT [cmds] @Mn [cmds]

Example:

AT @M26 &W<CR>

Default:

26

Range:

10-31

Unit:

-1dBm.

Description:

Sets the signal level for transmission when in leased line mode.

Command

Function

@M0

-26dBm.

@M1

-30dBm.

@M2-@M10

-10dBm.

CELLULAR TRANSMISSION LEVEL

Format

AT [cmds] S201=n [cmds]

Example:

AT S201=58 &W<CR>

Default:

58

Range:

0-255

Unit:

ASCII decimal

Description:

Sets the signal level for transmission when in leased line mode.

Bit

Value

Equiv.

Function

4 - 0

00000

...

11111

@M31

Sets leased line transmit attenuation level to -31dBm.

5

1

Equalizer enabled.

COMPRESSION

Type:

Configuration

Format:

AT %Cn

Example:

AT *EC0 %C1 *AP0<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

%C1

MNP5 enabled.

%C2

V.42bis enabled.

Both MNP5 and V.42 enabled.

COMPROMISE EQUALIZER

Type:

Configuration

Format:

AT [cmds] :En [cmds]

Example:

AT :E &W<CR>

Description:

Controls V.32 compromise equalizer.

Command

Function

:E0

Equalizer disabled.

Equalizer enabled.

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Example:

AT \N1 DT555-1212<CR>

Description:

Sets connect mode.

Command

Function

\N0

Normal mode enabled.

\N2

Reliable mode enabled.

Auto-reliable mode enabled.

\N4

LAPM mode enabled.

\N5

MNP mode enabled.

DTE SPEED OPTION

Type:

Configuration

Format:

AT [cmds] \Jn [cmds]

Example:

AT \J0 &W<CR>

Description:

Controls the speed of the DTE.

Command

Function

DCE and DTE rates are independent.

\J1

DTE rate adjusts to DCE rate after connection.

FLASH DIAL MODIFIER TIME

Format

AT [cmds] S29=n [cmds]

Example:

ATS29=70<CR>

Default:

70

Range:

0-255

Unit:

.01 second

Description:

Time the modem will go on-hook upon receiving the ! dial modifier in dial string.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Example:

AT \G1 &K3<CR>

Description:

Selects modem port flow control.

Command

Function

Flow control disabled.

\G1

Flow control enabled.

FLOW CONTROL CHARACTER - XOFF

Type:

Register

Format:

AT [cmds] S33=n [cmds]

Example:

ATS33=20<CR>

Default:

19

Range:

0-255

Unit:

ASCII

Description:

Sets the character used to represent XOFF.

FLOW CONTROL CHARACTER - XON

Type:

Register

Format:

AT [cmds] S32=n [cmds]

Example:

ATS32=20<CR>

Default:

17

Range:

0-255

Unit:

ASCII

Description:

Sets the character used to represent XON.

LINE SIGNAL LEVEL

Type:

Configuration

Format:

AT [cmds] %L [cmds]

Example:

AT %L &W<CR>

Description:

Returns recieved line signal level.

LINE SIGNAL QUALITY

Type:

Configuration

Format:

AT [cmds] %Q [cmds]

Example:

AT %Q<CR>

Description:

Displays line signal quality.

MAXIMUM BLOCK SIZE FOR TRANSMISSION

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Example:

AT \A3 %C1<CR>

Description:

Sets the maximum transmittable block size.

Command

Function

\A0

MNP block size is 64 characters.

MNP block size is 128 characters.

\A2

MNP block size is 192 characters.

\A3

MNP block size is 256 characters.

MNP STREAM/BLOCK MODE

Type:

Configuration

Format:

AT [cmds] \Ln [cmds]

Example:

AT \L1 DT555-1212<CR>

Description:

Selects the transfer mode for MNP.

Command

Function

Stream mode for MNP enabled.

\L2

Block mode for MNP enabled.

MNP10 COMPRESSION

Type:

Configuration

Format:

AT [cmds] -Kn [cmds]

Example:

AT %C1 -K1 -Q0 <CR>

Description:

Selects MNP10 data compression.

Command

Function

-K0

MNP10 disabled.

MNP10 enabled.

-K2

MNP10 enabled, except during V.42answer detection.

MNP10 FALL-BACK

Type:

Configuration

Format:

AT [cmds] -Qn [cmds]

Example:

AT *H0 -Q1 <CR>

Description:

Allows MNP10 to fall back to speeds slower than 4800bps.

Command

Function

-Q0

MNP10 at 2400 and 1200bps disabled.

MNP10 at 2400 and 1200bps enabled.

MNP10 LINK NEGOTIATION

Type:

Configuration

Format:

AT [cmds] *Hn [cmds]

Example:

AT *H0 -Q1 <CR>

Description:

Sets the speed at which MNP10 link negotiation will occur.

Command

Function

Link will be negotiated at highest possible speed.

*H1

Link will be negotiated at 1200bps.

*H2

Link will be negotiated at 4800bps.

MNP10 POWER LEVEL ADJUST

Type:

Configuration

Format:

AT [cmds] )Mn [cmds]

Example:

AT )M1 %C1<CR>

Description:

Controls automatic transmit power level adjustment during MNP 10 link negotiation.

Command

Function

Power level adjustment disabled.

)M1

Power level adjustment enabled.

PROTOCOL/SPEED

Type:

Configuration

Format:

AT [cmds] Fn [cmds]

Example:

AT F0 A<CR>

Description:

Selects the current protocol and speed.

Command

Function

Auto-select fastest common protocol.

F1

V.21/Bell 103A 300bps.

F3

V.23 1200/75bps.

F4

V.22/Bell 212A 1200bps.

F5

V.22bis.

F6

V.32bis/V.32 4800bps.

F7

V.32bis 7200bps.

F8

V.32 9600bps

F9

V.32bis 12Kbps

F10

V.32bis 14.4Kbps

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Example:

AT I1 O<CR>

Description:

Displays modem properties.

Command

Function

I0

Reports product code.

I1

Reports ROM checksum result.

I2

Test ROM. Reports OK or Error.

I3

Reports ROM revision level.

I4

Reports modem identifier string.

I5

Reports country code.

I6

Reports data pump model.

SLEEP TIMER

Format

AT [cmds] S24=n [cmds]

Example:

ATS24=32<CR>

Default:

32

Range:

0 - 255

Unit:

1 second

Description:

Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode. S24=0 will disable timer.

TEST MODES

Format

AT [cmds] S16? [cmds]

Example:

ATS16?<CR>

Default:

Read only

Range:

0-125

Unit:

Bit-mapped

Description:

Controls loopback tests, analog, digital, remote digital, and self tests.

Bit

Value

Function

0

1

Local analog loopback in progress.

1

0

Not used.

2

1

Local digital loopback in progress.

3

1

Remote digital loopback in progress.

4

1

Remote digital loopback requested.

5

1

Remote digital loopback w/ self-test in progress.

6

1

Local analog loopback w/ self-test in progress.