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SPORTSTER 14,400 EXTERNAL

U.S. ROBOTICS, INC.

SPORTSTER 14,400 EXTERNAL

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

14.4Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

External

Fax Class

Class I

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, 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

CONNECTIONS

Purpose

Location

Purpose

Location

Line out

CN3

DC power

CN1

Line in

CN4

Volume

R1

RS-232/422

CN2

Power switch

SW2

DTR SIGNAL

Setting

SW1/1

» DTR normal

Off

DTR forced high

On

RESULT CODES

Setting

SW1/2

» Verbal result codes enabled

Off

Numeric result codes enabled

On

RESULT CODES DISPLAY

Setting

SW1/3

» Enabled

On

Disabled

Off

ECHO DISPLAY

Setting

SW1/4

» Enabled

Off

Disabled

On

AUTO ANSWER

Setting

SW1/5

» Disabled

On

Enabled

Off

CARRIER DETECT

Setting

SW1/6

» CD normal

Off

CD forced high

On

SOFTWARE RESET

Setting

SW1/7

» Use stored profile

Off

Use factory default profile

On

AT COMMAND SET

Setting

SW1/8

Enabled

On

Disabled

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Mode

Condition

AA

Red

On

Answer

Auto-answer enabled

AA

Red

Off

N/A

Auto-answer disabled

AA

Red

Blinking

N/A

Phone is ringing

CD

Red

On

N/A

Carrier signal detected

CD

Red

Off

N/A

Carrier signal not detected

RD

Red

Blinking

N/A

Modem is receiving data or sending result codes

RD

Red

Off

N/A

Modem is not receiving data

SD

Red

Blinking

N/A

Modem is transmitting data

SD

Red

Off

N/A

Modem is not transmitting data

TR

Red

On

N/A

DTR signal is low

TR

Red

Off

N/A

DTR signal is high

CS

Red

On

N/A

CTS high

CS

Red

Off

N/A

CTS normal

ARQ/FAX

Red

On

Data

Error control connection established

ARQ/FAX

Red

Blinking

Data

Error control data is being transmitted

ARQ/FAX

Red

Blinking

Fax

Modem is connected in FAX mode

Proprietary AT Command Set

BIT-MAPPED REGISTER S13

Format

AT [cmds] S13=n [cmds]

Example:

ATS13=139<CR>

Default:

0

Range:

0 - 159

Unit:

Bit-mapped

Description:

Controls DTR reset, DTR dialing, Transmit buffer, backspace for delete, escape causes disconnect.

Bit

Value

Function

0

» 0

1

DTR normal.

Reset on low DTR.

1

» 0

1

Non-error-correcting mode transmit buffer set to 1.5KB.

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

2

» 0

1

Use backspace key for delete disabled.

Use backspace key for delete enabled.

3

» 0

1

DTR dialing disabled.

DTR dialing enabled.

4

» 0

1

Reset dialing disabled.

Reset dialing enabled.

5

» 0

Not used.

6

» 0

Not used.

7

» 0

1

Escape code causes disconnect disabled.

Escape code causes disconnect enabled.

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Example:

ATS27=139<CR>

Default:

0

Range:

0 - 191

Unit:

Bit-mapped

Description:

Controls V.21, V.32 encoding and modulation, V.42 answer tone and handshake, V.32 fallback, V.32bis, 9600 result codes.

Bit

Value

Function

0

» 0

1

V.21 disabled.

V.21 enabled.

1

» 0

1

V.32 trellis coding disabled.

V.32 trellis coding enabled.

2

» 0

1

V.32 modulation enabled.

V.32 modulation disabled.

3

» 0

1

2100Hz answer tone enabled.

2100Hz answer tone disabled.

4

» 0

1

V.32 fallback disabled.

V.32 fallback enabled.

5

» 0

1

V.32bis enabled.

V.32bis disabled.

6

» 0

Not used.

7

» 0

1

Actual result codes displayed.

Force 9600 result codes.

BREAK LENGTH

Type:

Register

Format:

AT [cmds] S21=n [cmds]

Example:

ATS21=20<CR>

Default:

10

Range:

0-255

Unit:

10 milliseconds

Description:

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

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Example:

AT &Y0<CR>

Description:

Configures action of break signal.

Command

Function

&Y0

Break empties buffer.

» &Y1

Break empties buffer and is sent immediately.

&Y2

Break does not empty buffer and is sent immediately.

CONNECTION SPEED UPPER LIMIT

Type:

Configuration

Format:

AT [cmds] &Nn [cmds]

Example:

AT &N1 DT555-1212<CR>

Description:

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

Command

Function

» &N0

Variable.

&N1

300bps

&N2

1200bps

&N3

2400bps

&N4

4800bps

&N5

7200bps

&N6

9600bps

&N7

12Kbps

&N8

14.4Kbps

ERROR CORRECTION MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Example:

AT &M1 %C1<CR>

Description:

Selects active error correction protocols.

Command

Function

&M0

Normal mode, error correction disabled.

» &M4

Normal/ARQ.

&M5

ARQ mode.

ERROR CORRECTION

Format

AT [cmds] S15=n [cmds]

Example:

ATS15=139<CR>

Default:

0

Range:

0 - 255

Unit:

Bit-mapped

Description:

Controls error correction.

Bit

Value

Function

0

» 0

1

V.22 error correction enabled.

V.22 error correction disabled.

1

» 0

1

V.22bis error correction enabled.

V.22bis error correction disabled.

2

» 0

1

V.32/V.32bis/V.32terbo error correction enabled.

V.32/V.32bis/V.32terbo error correction disabled.

3

» 0

1

MNP handshake enabled.

MNP handshake disabled.

4

» 0

1

MNP 4 enabled.

MNP 4 disabled.

5

» 0

1

MNP 3 enabled.

MNP 3 disabled.

6

» 0

1

MNP incompatibility disabled.

MNP incompatibility enabled.

7

» 0

1

V.42 enabled.

V.42 disabled.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] &An [cmds]

Example:

AT &A1 %C1<CR>

Description:

Selects extended result codes.

Command

Function

&A0

Extended result codes disabled.

&A1

ARQ result codes enabled.

&A2

V.32 result code enabled.

» &A3

Error control and compression result codes enabled.

FLOW CONTROL CHARACTER

Type:

Register

Format:

AT [cmds] S22=n [cmds]

Example:

ATS22=20<CR>

Default:

17

Range:

0-127

Unit:

ASCII

Description:

Sets the character used to represent XON.

FLOW CONTROL CHARACTER

Type:

Register

Format:

AT [cmds] S23=n [cmds]

Example:

ATS23=20<CR>

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character used to represent XOFF.

FLOW CONTROL PASSTHROUGH

Type:

Configuration

Format:

AT [cmds] &In [cmds]

Example:

AT &I0 &W<CR>

Description:

Allows modem to act on, then transmit XON/XOFF characters.

Command

Function

» &I0

Software flow control disabled.

&I1

XON/XOFF passthrough enabled.

&I2

XON/XOFF passthrough disabled.

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] &Hn [cmds]

Example:

AT &H0 A<CR>

Description:

Sets type of flow control used by modem.

Command

Function

&H0

Flow control disabled.

» &H1

CTS/RTS flow control enabled.

&H2

XON/XOFF flow control enabled.

&H3

CTS/RTS and XON/XOFF flow control enabled.

HELP SCREENS

Type:

Immediate

Format:

AT <prefix>$

Example:

AT &$<CR>

Description:

Shows command help screens for all commands beginning with the given prefix, or no prefix if none is given.

Command

Function

$

Shows ATx help screen.

&$

Shows AT&x help screen.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] S19=n [cmds]

Example:

ATS19=20<CR>

Default:

0

Range:

0-255

Unit:

1 minute

Description:

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

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Example:

AT $ &B0<CR>

Description:

Sets operation of serial port speed.

Command

Function

&B0

Serial speed follows connect speed

» &B1

Serial speed locked.

&B2

Serial speed locked in ARQ mode only,

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

Reports RAM checksum result.

I3

Reports firmware version.

I4

Reports current command settings.

I5

Reports current NVRAM settings.

I6

Reports current connection’s statistics.

I7

Reports configuration.

TONE DIALING TEST

Format

AT [cmds] S16=n [cmds]

Example:

ATS16=12<CR>

Default:

0

Range:

0 - 2

Unit:

Bit-mapped

Description:

Tone dialing test

Bit

Value

Function

0

0

Not used.

1

» 0

1

Tone dialing test disabled.

Tone dialing test enabled.

V.32 HANDSHAKE TIME

Type:

Register

Format:

AT [cmds] S28=n [cmds]

Example:

ATS28=20<CR>

Default:

8

Range:

0-255

Unit:

.1 second

Description:

Sets length of V.32 handshake.