DIGICOM SYSTEMS

SCOUT PCMCIA 28.8 V.34

Card Type

Fax, Modem

Chip Set

Unidentified

Maximum Modem Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

Bell 103/212A

ITU-T V.22, V.22bis, V.32, V.32bis, V.34

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

PCMCIA

54680

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/

A, B, C, E, H, L, 0, P, Q, M, V, W, Z

&C, &F, &G, &L, &M, &R, &T, &W, &X, &Y, &Z

Extended AT Commands

\G, \J, \K, \X

%A, %G

-J

"H, "O

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S25, S26, S27, S30

 

Note: See MHI Help file for full command documentation.

PROPRIETARY AT COMMAND SET

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

íN1

Auto-mode detection enabled

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Qn [cmds]

Description:

Selects communications mode (same as &M)

Command

Mode

&Q0

Asynchronous mode

&Q1

Synchronous connect mode and asynchronous off-line command mode.

&Q2

Synchronous connect mode and asynchronous off-line command mode and set DTR high.

&Q3

Synchronous connect mode

CONFIGURATION PROFILES

Type:

Immediate

Format:

AT [cmds] &V [cmds]

Description:

Displays active and stored configuration profiles

Command

Function

&V0

View active file, stored profile 0, and phone numbers

&V1

View active file, stored profile 1, and phone numbers

DATA SET READY (DSR)

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Selects DSR options

Command

Function

&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

Note: The action each variant of &D causes depends on the setting of &Q

&Q Setting

&D0

&D1

&D2

&D3

&Q0, &Q5, &Q6

Command 0

Command 1

Command 2

Command 3

&Q1, &Q4

Command 0

Command 1

Command 2

Command 3

&Q2, &Q3

Command 0

Command 1

Command 2

Command 2

Command

Function

Command 0

Modem does not respond to DTR

Command 1

Modem goes to command mode after DTR goes is off

Command 2

Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.

Command 3

Modem is initialized after DTR goes off

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

DL

Re-dial last number

DP

Pulse dialing enabled

DR

Reserved

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 on-hook for time specified by S20

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.

DJ

Modem performs MNP 10 link negotiation at the highest supported speed

DK

Power level adjustment during MNP link negotiation enabled

D^

Calling tone transmission disabled

D>

Modem generates a grounding pulse if enabled by a country specific parameter

ECHOPLEX VALIDITY

Type:

Configuration

Format:

AT [cmds] Fn [cmds]

Description:

Selects whether commands sent while in data mode are echoed

Note: Echoplex validity is a dummy command and not supported by this modem

Command

Function

F0

Returns error

F1

Echoplex disabled

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Enables flow control options

Command

Function

&K0

Flow control disabled

&K3

RTS/CTS flow control enabled

&K4

XON/XOFF flow control enabled

&K5

Transparent XON/XOFF flow control enabled

&K6

Unidirectional XON/XOFF flow control enabled

JACK TYPE

Type:

Configuration

Format:

AT [cmds] &Jn [cmds]

Description:

Dummy command for backward compatibility

Command

Jack Type

&J0

Returns OK

&J1

Returns OK

LONG SPACE DISCONNECT

Type:

Configuration

Format:

AT [cmds] Yn [cmds]

Description:

Dummy command for backward compatibility

Command

Function

Y0

Reports OK

Y1

Reports OK

PULSE DIALING RATIO

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

í&P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

SELECT CALL PROGRESS RESULT CODES

Type:

Configuration

Format:

AT [cmds] Xn [cmds]

Description:

Enables selection of tone detection and associated result code format options

Command

Function

X0

Displays CONNECT or 1 for all speeds

X1

Displays connect messages according to ATW and AT/V commands. Busy tone detection disabled, dials blindly

X2

Displays connect messages according to ATW and AT/V commands. Busy tone detection disabled, dial tone detection enabled

X3

Displays connect messages according to ATW and AT/V commands. Busy tone detection enabled, dials blindly

í X4

Displays connect messages according to ATW and AT/V commands. Busy tone detection enabled, sends all messages

 

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

Reports four digit product code

I1

Reports OK

I2

Test and reports ROM checksum

I3

Reports ROM components

I4

Reports modem capabilities

V.32 - AUTO-RETRAIN

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Controls auto-retrain function if poor line quality is detected

Command

Function

&B0

Auto-retrain enabled. Hang up if line quality is poor

&B1

Auto-retrain enabled. Hang up if poor line quality persists for longer than threshold specified by register S37

&B2

Do not hang up or retrain. Accept any line

EXTENDED AT COMMAND SET

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Selects data compression

Command

Function

%C0

Data compression disabled

%C1

MNP5 enabled

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Description:

Controls the type of connection the modem will operate in

Command

Function

\N0

Normal mode enabled

\N1

Direct mode enabled

\N2

Reliable mode enabled

í\N3

LAPM mode is enabled first, then MNP mode. Normal mode is selected if both fail

\N4

LAPM mode is enabled first, then MNP mode. Modem hangs up if both fail

FIRMWARE VERSION

Type:

Configuration

Format:

AT [cmds] -Vn [cmds]

Description:

Display firmware version number

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Description:

Sets type of flow control used by modem

Command

Function

\Q0

Flow control disabled

\Q1

Bi-directional XON/XOFF flow control enabled

\Q2

CTS flow control by DTE enabled

\Q3

Bi-directional RTS/CTS flow control enabled

INACTIVITY TIMER

Type:

Configuration

Format:

AT [cmds] \Tn [cmds]

Range:

0-90

Unit:

1 minute

Description:

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

PROTOCOL RESULT CODES

Type:

Configuration

Format:

AT [cmds] \Vn [cmds]

Description:

Enables/disables protocol result codes

Command

Function

\V0

Protocol result codes disabled

\V1

Protocol result codes enabled

V.42bis - DICTIONARY SIZE

Type:

Configuration

Format:

AT [cmds] "Nn [cmds]

Description:

Select V.42 dictionary size

Command

Function

"N0

Select 512 bytes

"N1

Select 1024 bytes

í"N2

Select 1536 bytes

S(STATUS) -REGISTERS

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Range:

0-174

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

0

Not used

1

0

í 1

Command echo disabled

Command echo enabled

2

í 0

1

Result codes enabled

Result codes disabled

3

0

í 1

Display result codes in numeric format

Display result codes in verbose format

4

0

Not used

5

0

í 1

Tone dial enabled

Pulse dial enabled

6

0

Not used

7

í 0 1

Answer mode enabled

Originate mode enabled

BIT-MAPPED REGISTER S19

Format:

AT [cmds] S19=n [cmds]

Unit:

Bit-mapped

Description:

Autosync protocol support mode

Bit

Value

Function

0

0

Reserved

1

0

í 1

Bisync protocol

HDLC protocol

2

í 0

1

Address detector disabled

Address detector enabled

3

0

í 1

NRZI bit coding

NRZ bit coding

4

0

í 1

Mark idle

Flag idle

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Range:

0-253

Unit:

Bit-mapped

Description:

Selects CTS/DCD/DSR signals, and low DTR action

Bit

Value

Function

0,1

0

Reserved

2

0

1

CTS follows RTS

CTS forced high

4, 3

00

01

10

11

DTR signal ignored

Modem goes to command mode on low DTR

Modem disconnects on low DTR; Auto-Answer is disabled.

Modem is initialized on low DTR

5

0

1

DCD forced high

DCD normal

6

0

1

DSR forced high

DSR normal

7

0

Reserved

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Range:

0-189

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

0

í 1

Remote digital loopback denied

Remote digital loopback allowed

3 - 1

0

Reserved

5, 4

00

01

10

11

Parity even

Space Parity

Parity odd

Mark or No Parity

7, 6

00

01

10

Guard tone disabled

Guard tone 550Hz enabled

Guard tone 1800Hz enabled

BIT-MAPPED REGISTER S31

Format:

AT [cmds] S31=n [cmds]

Range:

0-10

Description:

Select automode and extended result code format.

Bit

Value

Function

0

0

Not used

1

0

1

Auto-mode detection disabled

Auto-mode detection enabled

3, 2

00

01

10

Enables CONNECT result codes to report DTE speed

Full reporting of CONNECT result codes

Enables CONNECT result codes to report DCE speed

BIT-MAPPED REGISTER S40

Format

AT [cmds] S40=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Controls automode and V.42 detection

Bit

Value

Function

0

0

1

Automode disabled

Automode enabled

1-5

0

Reserved

6

0

1

V.42 detection disabled

V.42 detection enabled

AUTOMATIC-FALLBACK FOR MNP NEGOTIATION

Type:

Register

Format

AT [cmds] S43=n [cmds]

Range:

1-127

Unit:

ASCII

Description:

Determines automatic fallback character for MNP negotiation

BIT-MAPPED REGISTER S44

Format

AT [cmds] S44=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Controls data compression mode

Bit

Value

Function

0

0

1

V.42bis disabled

V.42bis enabled

1,2

00

01

10

11

V.42bis disabled

V.42bis when transmitting enabled

V.42bis when receiving enabled

V.42bis when transmitting/receiving enabled

3

0

Reserved

4

0

1

Auto-fallback/fall-forward disabled

Auto-fallback/fall-forward enabled

5-7

0

Reserved

AUTORELIABLE BUFFER

Type:

Register

Format

AT [cmds] S48=n [cmds]

Range:

0-2

Unit:

ASCII

Description:

Controls autoreliable buffer

BIT-MAPPED REGISTER S51

Format

AT [cmds] S51=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Controls data/fax DTE flow control

Bit

Value

Function

0-1

00

01

10

11

Flow control disabled

RTS to CTS flow control enabled

XON/XOFF flow control enabled

RTS/CTS flow control enabled

2-3

0

Reserved

4

0

1

Flow control disabled

Flow control enabled

5

0

1

Serial speed locked

Serial speed follows connect speed

6,7

0

1

XON/XOFF signals trapped by local modem

XON/XOFF signals passed through local modem

BIT-MAPPED REGISTER S54

Format

AT [cmds] S54=n [cmds]

Range:

0-255

Unit:

ASCII

Description:

Unidentified

BTLZ OPTIONS

Type:

Register

Format

AT [cmds] S58=n [cmds]

Range:

6-64

Unit:

ASCII

Description:

Sets BTLZ string length. Default=32

BREAK OPTION

Type:

Register

Format

AT [cmds] S52=n [cmds]

Range:

0-5

Unit:

Unidentified

Description:

Controls break options. Default=5

CONNECT MESSAGE DISPLAY

Format

AT [cmds] S41=n [cmds]

Range:

0-2

Unit:

ASCII

Description:

Control display of connect message

DATA/FAX MODE

Format

AT [cmds] S50=n [cmds]

Range:

0-1

Unit:

ASCII

Description:

Control data/fax mode options

DCE LINE SPEED

Type:

Register

Format

AT [cmds] S37=n [cmds]

Description:

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

DTE RATE SELECTION

Type:

Register

Format

AT [cmds] S72=n [cmds]

Range:

0-18

Unit:

ASCII

Description:

Selects DTE rate during data transfer

DTE RATE STATUS

Type:

Register

Format

AT [cmds] S62=n [cmds]

Range:

0-17

Unit:

ASCII

Description:

Determines DTE rate status. Default=16

EEPROM CHECKSUM

Type:

Register

Format

AT [cmds] S99=n [cmds]

Range:

Unidentified

Unit:

ASCII

Description:

Sets EEPROM checksum

MAXIMUM BLOCK SIZE

Type:

Register

Format

AT [cmds] S49=n [cmds]

Range:

63-255

Unit:

ASCII

Description:

Sets the maximum block size. Default=255

MNP5 ERROR CORRECTION

Type:

Register

Format

AT [cmds] S59=n [cmds]

Range:

0-1

Unit:

ASCII

Description:

Sets MNP5 error correction. Default=1

MODEM OPERATING MODE

Type:

Register

Format

AT [cmds] S53=n [cmds]

Range:

0-4

Unit:

ASCII

Description:

Selects modem operating mode

POWER-UP PROFILE

Type:

Register

Format

AT [cmds] S98=n [cmds]

Range:

Unidentified

Unit:

ASCII

Description:

Sets power-up profile number

ROUND TRIP DELAY

Type:

Register

Format

AT [cmds] S65=n [cmds]

Range:

Unidentified

Unit:

1sec

Description:

Sets round trip time delay

SLEEP TIMER

Type:

Register

Format

AT [cmds] S46=n [cmds]

Range:

0-255

Unit:

1sec

Description:

Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode.

SLEEP TIMER/PCMCIA

Type:

Register

Format

AT [cmds] S47=n [cmds]

Range:

0-255

Unit:

1sec

Description:

Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode.

V.32 RETRAIN

Type:

Register

Format

AT [cmds] S42=n [cmds]

Range:

0-2

Unit:

ASCII

Description:

Controls V.32 retrain

V.42bis DICTIONARY SIZE

Type:

Register

Format

AT [cmds] S57=n [cmds]

Range:

0-2

Unit:

Unidentified

Description:

Sets the maximum V.42bis dictionary size. Default=2