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Card Type

Modem

Chipset

Rockwell RCV288DPi

I/O Options

Microphone in, modem audio, speaker out, voice, speakerphone, DVSD

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation

Rockwell V.FC

Fax Modulation

ITU-T V.17, V.21CH2, V.27ter, V.29, V.33

Error Correction/Compression

MNP5, MNP10, V.42, V.42bis

Fax Class

Class I & II

Data Bus

16-bit ISA

Card Size

Full height, half length

CONNECTIONS

Function

Label

Function

Label

Telephone line in

CN1

Speaker out

CN4

Telephone line out

CN2

Modem audio in/out

CN5

Microphone in

CN3

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, �comma�, A/

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

&C, &D, &F, &G, &K, &M, &P, &Q, &R, &S, &T, &V, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \K, \N

%C, %E, %L, %Q

Special AT Commands

#CID, +MS

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, S38, S39, S46, S48, S86, S91, S92, S95, S201

AUTOSYNC OPTIONS

Type:

Register

Format

AT [cmds] S19=n [cmds]

Default:

26

Range:

0 - 30

Description:

Controls autosync protocol, HDLC address detection, bit coding, and HDLC idle.

Bit

Value

Function

0

0

Not used

1

í 1

HDLC protocol used.

2

í 0

1

HDLC address detect enabled.

3

í 1

NRZ bit coding used.

4

í 1

HDLC idle sends FLAG or SYNC.

AUTOSYNC HDLC ADDRESS

Type:

Register

Format:

AT [cmds] S20=n [cmds]

Default:

0

Range:

0-255

Unit:

Unidentified

Description:

Sets the HDLC address and binary synchronous character.

BIT-MAPPED REGISTER S28

Format

AT [cmds] S28=n [cmds]

Default:

0

Range:

0 - 153

Description:

Controls V.23 split speed, half duplex, pulse dialing, and MNP10 link negotiation.

Bit

Value

Function

2 - 0

000

Not used.

4, 3

í 00

11

33ms make/67ms break at 20pps.

5

0

Not used.

7, 6

í 00

10

Link will be negotiated at 4800bps.

BIT-MAPPED REGISTER S40

Format

AT [cmds] S40=n [cmds]

Default:

107

Range:

0 - 255

Description:

Controls power level and break handling; selects MNP extended services, link negotiation, and block size.

Bit

Value

Function

0

í 1

MNP10 enabled.

1

í 1

MNP10 at 2400 and 1200bps enabled.

2

í 0

1

Power level adjustment disabled.

5, 4, 3

í 101

\K5 set.

7, 6

í 01

11

MNP block size is 256 characters.

BIT-MAPPED REGISTER S41

Format

AT [cmds] S41=n [cmds]

Default:

131

Range:

0 - 139

Description:

Selects compression, auto-retrain and auto-fallback/fall-forward, and low-speed MNP10.

Note:

Be aware that bit 6 is out of order.

Bit

Value

Function

1, 0

í 11

MNP5 and V.42bis enabled.

6, 2

í 00

10

Auto-fallback/fall-forward enabled.

5 - 3

000

Not used.

7

í 1

MNP10 at 2400 and 1200bps enabled.

DIAL

Type:

Immediate

Format:

AT [cmds] D<#> [cmds]

Description:

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

Command

Function

DJ

MNP10 link will be negotiated at 1200bps for this call.

DK

MNP10 power level adjustment enabled for this call.

DL

Re-dial last number.

DP

Pulse dialing enabled.

DT

Tone dialing enabled.

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 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^

Calling tone toggled from current state for this call.

D&

Wait for prompt tone detection function enabled. Waits for prompt tone for amount of time specified by the S7 command.

D;

Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

DISPLAY INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested about the modem.

Command

Function

I0

Displays product identification code.

I1

Displays ROM checksum.

I1

Displays ROM checksum.

I3

Displays firmware model, revision, and interface.

I4

Displays OEM string.

I5

Displays country code.

I6

Displays data pump model and revision.

I7

Displays the DAA code.

DISTINCTIVE RING

Format:

AT [cmds] -SDR=n [cmds]

Default:

Unidentified

Range:

0 - 7

Description:

Selects which distinctive ring signals the modem will respond to.

Bit

Value

Function

0

1

Respond to distinctive ring type 1.

1

1

Respond to distinctive ring type 2.

2

1

Respond to distinctive ring type 3.

DSVD MODE

Type:

Configuration

Format:

AT [cmds] -SSE=n [cmds]

Description:

Select whether the modem will use DSVD mode.

Command

Function

í -SSE=0

DSVD mode disabled.

-SSE=1

DSVD mode enabled.

LINE SPEED

Type:

Register

Format:

AT [cmds] S37=n [cmds]

Description:

Sets the maximum allowable data exchange rate attempted during the handshaking process.

Command

Function

S37=0

Attempt to connect at fastest common speed.

S37=1

Attempt to connect at 300bps.

S37=2

Attempt to connect at 300bps.

S37=3

Attempt to connect at 300bps.

S37=5

Attempt to connect with V.22 at 1200bps.

S37=6

Attempt to connect with V.22bis at 2400bps.

S37=7

Attempt to connect with V.23.

S37=8

Attempt to connect with V.32 or V.32bis at 4800bps.

S37=9

Attempt to connect with V.32 or V.32bis at 9600bps.

S37=10

Attempt to connect with V.32bis at 12Kbps.

S37=11

Attempt to connect with V.32bis at 14.4Kbps.

S37=12

Attempt to connect with V.32bis at 7200bps.

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 I mode.

#CLS=2

Modem will operate in fax class II mode.

#CLS=8

Modem will operate in voice mode.

RPI CONFIGURATION

Type:

Configuration

Format:

AT [cmds] +Hn [cmds]

Description:

Configures the Rockwell Protocol Interface.

Command

Function

+H0

RPI disabled.

+H1

RPI enabled and local serial port speed set to 19.2Kbps.

+H2

RPI enabled and local serial port speed set to 38.4Kbps.

+H3

RPI enabled and local serial port speed set to 57.6Kbps.

SPEAKERPHONE OPTIONS

Type:

Configuration

Format:

AT [cmds] #SPK=x,y,z [cmds]

Description:

Sets various options for speakerphone functions.

Command

Function

x=0

Microphone enabled.

x=1

Microphone disabled.

x=2

Microphone enabled with maximum gain, speaker disabled.

Default (y):

5

Range (y):

0 - 16

Unit (y):

-2 dBm

Description (y):

Sets the attenuation level for speaker output in voice mode.

z=0

Microphone gain set to 0 dBm.

z=1

Microphone gain set to 6 dBm.

z=2

Microphone gain set to 9.5 dBm.

z=3

Microphone gain set to 12 dBm.

TEST MODE - PTT

Type:

Immediate

Format:

AT [cmds] %TTnn [cmds]

Description:

Send PTT test signals for line tests.

Command

Function

%TT00

Send DTMF digit 0.

%TT01

Send DTMF digit 1.

%TT02

Send DTMF digit 2.

%TT03

Send DTMF digit 3.

%TT04

Send DTMF digit 4.

%TT05

Send DTMF digit 5.

%TT06

Send DTMF digit 6.

%TT07

Send DTMF digit 7.

%TT08

Send DTMF digit 8.

%TT09

Send DTMF digit 9.

%TT0A

Send DTMF digit *.

%TT0B

Send DTMF digit #.

%TT0C

Send DTMF digit A.

%TT0D

Send DTMF digit B.

%TT0E

Send DTMF digit C.

%TT0F

Send DTMF digit D.

%TT10

Send V.21 channel 1 mark symbol.

%TT11

Send V.21 channel 2 mark symbol.

%TT12

Send V.23 backward channel mark symbol.

%TT13

Send V.23 forward channel mark symbol.

%TT15

Send V.22 originate mark symbol at 1200bps.

%TT16

Send V.22bis originate mark symbol at 2400bps.

%TT17

Send V.22 answer signal with guard tone if required.

TEST MODE - PTT (CON'T)

Command

Function

%TT18

Send V.22bis answer signal with guard tone if required.

%TT19

Send V.21 channel 1 space symbol.

%TT1A

Send V.21 channel 2 space symbol.

%TT1B

Send V.23 backward channel space symbol.

%TT1C

Send V.23 forward channel space symbol.

%TT20

Send V.32 9600bps carrier.

%TT21

Send V.32bis 14.4Kbps carrier.

%TT30

Send silence (on-line), i.e., go off-hook.

%TT31

Send V.25 answer tone.

%TT32

Send 1800 Hz guard tone.

%TT33

Send 1300Hz V.25 calling tone.

%TT34

Send 1100Hz fax calling tone.

%TT40

Send V.21 channel 2 carrier.

%TT41

Send V.27ter 2400bps carrier.

%TT42

Send V.27ter 4800bps carrier.

%TT43

Send V.29 7200bps carrier.

%TT44

Send V.29 9600bps carrier.

%TT45

Send V.17 7200bps long train carrier.

%TT46

Send V.17 7200bps short train carrier.

%TT47

Send V.17 9600bps long train carrier.

%TT48

Send V.17 9600bps short train carrier.

%TT49

Send V.17 12Kbps long train carrier.

%TT4A

Send V.17 12Kbps short train carrier.

%TT4B

Send V.17 14.4Kbps long train carrier.

%TT4C

Send V.17 14.4Kbps short train carrier.

%TT5a,b,c,d,e

Send V.FC carrier according to the parameters given. See the %TT6... command for information on the parameters.

%TT6a,b,c,d,e

Send V.34 carrier according to the parameters given. The c and e parameters have no function.

Parameter

Function

a=0

Data rate for carrier is 2400bps for V.34 only.

a=1

Data rate for carrier is 4800bps for V.34 only.

a=2

Data rate for carrier is 7200bps for V.34 only.

a=3

Data rate for carrier is 9600bps for V.34 only.

a=4

Data rate for carrier is 12Kbps for V.34 only.

a=5

Data rate for carrier is 14.4Kbps.

a=6

Data rate for carrier is 16.8Kbps.

a=7

Data rate for carrier is 19.2Kbps.

a=8

Data rate for carrier is 21.6Kbps.

a=9

Data rate for carrier is 24Kbps.

a=A

Data rate for carrier is 26.4Kbps.

a=B

Data rate for carrier is 28.8Kbps.

TEST MODE - PTT (CON'T)

Command

Function

%TT6a,b,c,d,e

í b=0

Baud rate for carrier is 2400 baud.

b=2

Baud rate for carrier is 2800 baud.

b=3

Baud rate for carrier is 3000 baud.

b=4

Baud rate for carrier is 3200 baud.

b=5

Baud rate for carrier is 3429 baud.

c=2B

Set V.FC carrier bias to -100Hz.

c=3E

Set V.FC carrier bias to -10Hz.

c=3F

Set V.FC carrier bias to -5Hz.

í c=40

Set V.FC carrier bias to 0Hz.

c=41

Set V.FC carrier bias to +5Hz.

c=42

Set V.FC carrier bias to +10Hz.

c=54

Set V.FC carrier bias to +100Hz.

í d=0

Auxiliary channel carrier disabled.

d=1

Auxiliary channel carrier enabled.

e=0

Upper band edge compensation set to 0dB.

e=1

Upper band edge compensation set to 1dB.

e=2

Upper band edge compensation set to 2dB.

e=3

Upper band edge compensation set to 3dB.

e=4

Upper band edge compensation set to 4dB.

e=5

Upper band edge compensation set to 5dB.

e=6

Upper band edge compensation set to 6dB.

e=7

Upper band edge compensation set to 7dB.

e=8

Upper band edge compensation set to 8dB.

e=9

Upper band edge compensation set to 9dB.

e=A

Upper band edge compensation set to 10dB.

e=B

Upper band edge compensation set to 12dB.

e=C

Upper band edge compensation set to 13dB.

e=D

Upper band edge compensation set to 14dB.

e=E

Upper band edge compensation set to 15dB.

e=F

Upper band edge compensation set to 22dB.

TONE DETECTION

Format:

AT [cmds] #VTD=x,y,z [cmds]

Default:

x,y,z 3F

Range:

0 - 3F (hexadecimal)

Description:

Sets which tones the tone detection will report.

Note:

The value of x sets the tone detection modes in voice transmit mode, y sets them in voice receive mode, and z sets them in voice command mode.

Bit

Value

Function

0

í 1

DTMF tones are detected.

1

í 1

V.25 1300Hz calling tone is detected.

2

í 1

T.30 1100Hz fax tone is detected.

3

í 1

V.25/T.30 2100Hz answer tone is detected.

4

í 1

Bell 2225Hz answer tone is detected.

5

í 1

Call progress tones are detected.

TONE GENERATOR - DIRECT ENTRY

Type:

Immediate

Format:

AT [cmds] #VTS=[m, n, x]

Range:

m 200-3000, n 200-3000, x 0-255

Unit:

m 1 Hz, n 1 Hz, x .1 second

Description:

Generates a dual-frequency tone for duration x at frequencies m and n.

TONE GENERATOR - TIMED PHONE KEYS

Type:

Immediate

Format:

AT [cmds] #VTS={a, n}

Range:

a 0-9, A-D, #, *; x 0-255

Unit:

x .1 second

Description:

Generates the DTMF tone for duration x for the character a.

TONE GENERATOR - PHONE KEYS

Type:

Immediate

Format:

AT [cmds] #VTS=a

Range:

0-9, A-D, #, *

Description:

Generates the DTMF tones for the characters in the string for the duration set with +VBT.

TONE GENERATOR LENGTH

Format

AT [cmds] #VBT=n [cmds]

Default:

10

Range:

0 - 40

Unit:

0.1 second

Description:

Sets the length of DTMF tones that are generated.

VOICE BUFFER SPACE

Type:

Configuration

Format:

AT [cmds] #VSK=n [cmds]

Default:

255

Range:

0 - 255

Unit:

1 byte

Description:

Sets the amount of data the modem can send into the buffer after the XOFF signal is sent.

VOICE DEVICE

Type:

Configuration

Format:

AT [cmds] #VLS=n [cmds]

Description:

Selects the I/O device for the DSP chip.

Note:

This modem may not support all options listed below. The #VLS? command will display the available options.

Command

Function

í #VLS=0

Telephone line and handset used for voice I/O.

#VLS=1

Telephone handset used for voice I/O.

#VLS=2

Internal speaker only used for voice I/O.

#VLS=3

External microphone only used for voice I/O.

#VLS=4

Telephone line and handset used for voice I/O; internal speaker enabled.

#VLS=5

Headset used for voice I/O.

#VLS=6

Speakerphone used for voice I/O.

#VLS=7

Handset muted by disconnecting handset or speakerphone from telephone line.

#VLS=8

Connects caller ID relay for recording of conversation over handset.

#VLS=9

Connects handset (or speakerphone) to DSP chip for recording or playback.

VOICE - DISPLAY BUFFER SIZE

Type:

Immediate

Format:

AT [cmds] #VBQ? [cmds]

Description:

Displays the size of the voice buffer.

VOICE - DISPLAY COMPRESSION TYPE

Type:

Immediate

Format:

AT [cmds] #VCI? [cmds]

Description:

Displays the type of compression currently in use.

VOICE RE-RING DETECT TIME

Type:

Configuration

Format:

AT [cmds] #VRA=n [cmds]

Default:

70

Range:

0-255

Unit:

10 mS

Description:

Sets the maximum time the modem will wait for the remote station to ring again before it assumes that it has gone off-hook.

VOICE RECEIVE

Type:

Immediate

Format:

AT [cmds] #VRX

Description:

Commands the modem to begin receiving voice data.

VOICE RING DETECT TIME

Type:

Configuration

Format:

AT [cmds] #VRN=n [cmds]

Default:

100

Range:

0 - 255

Unit:

100 mS

Description:

Sets the maximum time the modem will wait for the remote station to ring before it assumes that it went off-hook before it rang.

VOICE SAMPLE QUALITY

Type:

Configuration

Format:

AT [cmds] #VBS=n [cmds]

Description:

Selects the number of bits per sample that the modem records.

Note:

This modem may not support all options listed below. The #VBS? command will display the available options.

Command

Function

#VBS=2

Modem records 2 bits per sample in ADPCM encoding.

#VBS=3

Modem records 3 bits per sample in ADPCM encoding.

í #VBS=4

Modem records 4 bits per sample in ADPCM encoding.

#VBS=8

Modem records 8 bits per sample in PCM encoding.

#VBS=16

Modem records 16 bits per sample in PCM encoding.

VOICE SAMPLING RATE

Type:

Configuration

Format:

AT [cmds] #VSR=n [cmds]

Description:

Sets the sampling rate used when recording voice signals.

Command

Function

#VSR=7200

Selects a sampling rate of 7.2KHz.

#VSR=11025

Selects a sampling rate of 11.025KHz in PCM encoding only.

VOICE SILENCE DETECTION

Type:

Configuration

Format:

AT [cmds] #VSD=n [cmds]

Description:

Selects whether the modem will use silence detection to pause recording during periods of silence.

Command

Function

í #VSD=0

Silence detection disabled.

#VSD=1

Silence detection enabled.

VOICE SILENCE DETECTION TIME

Type:

Configuration

Format:

AT [cmds] #VSP=n [cmds]

Default:

Unidentified

Range:

0 - 255

Unit:

.1 second

Description:

Sets the minimum amount of silence that the modem will detect.

VOICE SILENCE DETECTION THRESHOLD

Type:

Configuration

Format:

AT [cmds] #VSS=n [cmds]

Description:

Sets the threshold of sensitivity that the modem uses to determine silence detection.

Command

Function

#VSS=0

Silence detection disabled.

#VSS=1

Minimum silence detection sensitivity.

#VSS=2

Standard silence detection sensitivity.

#VSS=3

Maximum silence detection sensitivity.

VOICE TIMING MARK

Type:

Configuration

Format:

AT [cmds] #VTM=n [cmds]

Description:

Configures timing mark placement.

Command

Function

#VTM=0

Timing marks disabled.

#VTM=1

Timing marks enabled.

VOICE TRANSMISSION LEVEL

Type:

Configuration

Format:

AT [cmds] #TL=hhhh [cmds]

Default:

3FFF

Range:

0000 - 7FFF

Unit:

Unidentified (hexadecimal)

Description:

Sets the transmission level for sending audio in voice mode.

VOICE TRANSMIT

Type:

Immediate

Format:

AT [cmds] #VTX

Description:

Commands the modem to begin transmitting voice data.

VOICE VOLUME LEVEL

Type:

Configuration

Format:

AT [cmds] #VGT=n [cmds]

Description:

Sets the volume level when playing back audio signals.