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Card Type

Modem

Chip Set

Motorola

I/O Options

25-pin DTE port, line in, line out

Maximum Data Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation Protocol

ITU-T V.21, V.22, V.22bis, V.27, V.29, V.32, V.32bis, V.33, V.34

Fax Modulation Protocol

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

Error Correction/Compression

MNP5, V.42, V.42bis

Fax Class

Class I

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

Line out

CN1

Power cord

CN4

Line in

CN2

Power switch

SW1

25-pin DTE port

CN3

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

TR

Unidentified

On

DTR signal is high

TR

Unidentified

Off

DTR signal is low

CS

Unidentified

On

CTS signal is high

CS

Unidentified

Off

CTS signal is low

RS

Unidentified

On

RTS signal is high

RS

Unidentified

Off

RTS signal is low

CD

Unidentified

On

Carrier signal detected or error correction negotiation completed

CD

Unidentified

Off

Carrier signal not detected

RD

Unidentified

On

Modem is receiving data

RD

Unidentified

Off

Modem is not receiving data

TD

Unidentified

On

Modem is transmitting data

TD

Unidentified

Off

Modem is not transmitting data

SUPPORTED COMMAND SET

Basic AT Commands

+++, �comma�, A/

&G, &P, &T, &W, &X, &Y

Extended AT Commands

\A, \G, \T, \X, \V

%A

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S22

COMMUNICATIONS MODE

Type:

Configuration

Format:

AT [cmds] &Mn [cmds]

Description:

Selects the active communications mode.

Command

Function

&M0

Asynchronous command and data modes.

&M1

Asynchronous command and synchronous connect mode.

&M2

DTR dialing enabled and synchronous connect mode.

&M3

Manual dialing only and synchronous connect mode.

&M4

V.25bis BISYNC command and synchronous connect mode (ASCII).

&M5

V.25bis SDLC command and synchronous connect mode (NRZ).

&M6

V.25bis asynchronous command and synchronous connect mode.

&M7

V.25bis asynchronous command and asynchronous connect mode.

&M8

V.25bis BISYNC command and synchronous connect mode (EBCDIC).

&M9

V.25bis asynchronous command and synchronous connect mode (EBCDIC, NRZ).

&M10

V.25bis SDLC command and synchronous connect mode (ASCII, NRZ).

&M11

V.25bis SDLC command and synchronous connect mode (EBCDIC, NRZ).

CONFIGURATION PROFILES

Type:

Immediate

Format:

AT [cmds] &V [cmds]

Description:

Displays active and stored configuration profiles

Command

Function

&V0

Displays configuration profiles

&V1

Displays received signal options

&V2

Displays active profile

CTS SIGNAL

Type:

Configuration

Format:

AT [cmds] &Rn [cmds]

Description:

Selects the function of the CTS signal.

Command

Function

&R0

RTS to CTS delay enabled.

í &R1

CTS forced high.

&R2

CTS follows CD.

&R9

CTS follows RTS.

DATA TERMINAL READY (DTR)

Type:

Configuration

Format:

AT [cmds] &Dn [cmds]

Description:

Selects modem response to DTR

Command

Function

í&D0

DTR override

&D1

DTR toggle causes online command mode

&D2

Normal DTR operations

&D3

Resets on receipt of DTR

DCD SIGNAL

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Description:

Configures the behavior of the DCD signal.

Command

Function

í &C0

DCD forced high.

&C1

DCD normal.

&C2

DCD forced high except during handshaking and disconnecting.

&C3

DCD follows remote RTS signal.

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

DP

Pulse dialing enabled

DR

Answer mode enabled; originate mode disabled following handshake initiation.

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 off-hook for .5sec before returning on-hook.

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.

DSR SIGNAL

Type:

Configuration

Format:

AT [cmds] &Sn [cmds]

Description:

Controls the behaviour of the DSR signal.

Command

Function

í &S0

DSR forced high.

&S1

DSR normal.

&S2

DSR normal, except forced low on disconnect.

&S3

DSR follows OH.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] Wn [cmds]

Description:

Enables selection of additional result codes.

Command

Function

W0

Negotiation displays disabled

W1

Negotiation displays enabled

W2

Enables CONNECT result codes to report DCE speed

FACTORY DEFAULT PROFILE

Type:

Configuration

Format:

AT [cmds] &Fn [cmds]

Description:

Sets values in active profile to values found in the default profile

Command

Function

&F0

Load factory profile 1

&F1

Load factory profile 1

&F1

Load factory profile 2

&F3

Load factory profile 3

&F4

Load factory profile 4

&F5

Load factory profile 5

&F6

Load factory profile 6

&F7

Load factory profile 7

&F8

Load factory profile 8

&F9

Load factory profile 9

HANG UP MODE

Type:

Immdeiate/Configuration

Format:

AT [cmds] Hn [cmds]

Description:

Commands the modem to go on- or off-hook, and selects how the modem will hang up.

Command

Function

H0

Modem commanded to go on-hook (hang up).

H1

Modem commanded to go off-hook (pick up).

H2

Set hang up mode to normal on next ATH0 command

H3

Set hang up mode to fast on next ATH0 command

LINE TYPE

Type:

Configuration

Format:

AT [cmds] &Ln [cmds]

Description:

Selects line type

Command

Line Type

&L0

Switched line (PSTN/Dial-up)

&L1

2-wire leased-line

&L2

4-wire leased-line

LONG SPACE DISCONNECT

Type:

Configuration

Format:

AT [cmds] Yn [cmds]

Description:

Commands the modem to disconnect after a 4 second break is detected

Command

Function

Y0

Long space disconnect function disabled

Y1

Long space disconnect function enabled

PULSE DIALING RATIO

Type:

Configuration

Format:

AT [cmds] &Pn [cmds]

Description:

Selects pulse dial make/break ratio

Command

Function

&P0

39/61ms at 10pps (North America)

&P1

33/67ms at 10pps (Europe)

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Description:

Displays information requested

Command

Function

I0

I1

Reports EPROM checksum

I3

Reports product version

I4

Reports Motorola V.3600

I5

Report reason for last disconnect

RESTORE PROFILE ON POWER-UP

Type:

Configuration

Format:

AT [cmds] &Yn [cmds]

Description:

Restores a selected profile into the active profile on power-up (hard reset) &Y? displays power-up profile

Command

Function

&Y0

Restore profile 1 on power-up

&Y1

Restore profile 2 on power-up

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE

Command

Function

Q0

Result code sending enabled

Q1

Result code sending disabled

Q2

Result code sending enabled in originate mode

SOFT RESET

Type:

Immediate

Format:

AT [cmds] Zn [cmds]

Description:

Restores modem profiles previously saved in non-volatile RAM using the &W command.

Command

Function

Z0

Restore setting 1

Z1

Restore setting 2

SPEAKER VOLUME

Type:

Configuration

Format:

AT [cmds] Ln [cmds]

Description:

Controls speaker volume

Command

Function

L0

Low volume setting

L1

Low volume setting

L2

Low volume setting

L3

High volume setting

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Description:

Controls the handling of incoming data during auto-reliable time period

Command

Function

í \C0

Data is discarded

\C1

Data is buffered

AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Description:

Controls auto-retrain mode and fallback/fall-forward

Command

Function

%E0

Auto-retrain disabled

%E1

Auto-retrain enabled

BREAK SEND

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Range:

1-255

Default:

35

Unit:

20ms

Description:

Sends break to modem

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Description:

Configures action of break signal.

Command

connect state, reliable/normal mode

Direct mode

Modem receives \B

Break issued: command state, reliable/normal mode

\K0

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

Send break to remote modem immediately, then enter command mode.

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to DTE.

\K1

Buffers cleared and break sent to remote modem.

Send break to remote modem immediately.

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, then enter command mode.

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 remote modem immediately.

Send break to DTE immediately.

\K4

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

Send break to remote modem immediately, then enter command mode.

Send break to remote modem with transmitted data.

Break sent with received data to the DTE.

í \K5

Send break with transmitted data.

Send break to remote modem immediately.

Send break to remote modem with transmitted data.

Break sent with received data to the DTE.

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Description:

Selects data compression

Command

Function

%C0

Data compression disabled

í %C1

V.42bis enabled on transmit and receive data

%C2

V.42bis enabled on transmit data

%C3

V.42bis enabled on receive data

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

\N3

Auto-reliable mode enabled

\N4

V.42 reliable mode enabled

\N5

MNP reliable mode enabled

\N6

V.42 or MNP reliable mode enabled

í \N7

V.42, MNP or normal mode enabled

CONNECTION SPEED LOWER LIMIT

Type:

Configuration

Format:

AT [cmds] %Ln [cmds]

Description:

Sets slowest allowed connection speed.

Command

Function

%L0

No minimum speed.

%L1

No minimum speed.

%L2

Select 1200bps minimum speed.

%L3

Select 2400bps minimum speed.

%L4

Select 4800bps minimum speed.

%L5

Select 9600bps uncoded minimum speed.

%L6

Select 9600bps minimum speed.

%L7

Select 7200bps minimum speed.

%L8

Select 12Kbps minimum speed.

%L9

Select 14.4Kbps minimum speed.

%L11

Select 16.8Kbps minimum speed.

%L12

Select 19.2Kbps minimum speed.

%L13

Select 21.6Kbps minimum speed.

%L14

Select 24Kbps minimum speed.

%L15

Select 26.4Kbps minimum speed.

%L16

Select 28.8Kbps minimum speed.

%L17

Select 31.2Kbps minimum speed.

%L18

Select 33.6Kbps minimum speed.

CONNECTION SPEED UPPER LIMIT

Type:

Configuration

Format:

AT [cmds] %Bn [cmds]

Description:

Sets fastest allowed connection speed.

Command

Function

%B0

Follow serial port speed.

%B1

Select 300bps maximum speed.

%B2

Select 1200bps maximum speed.

%B3

Select 2400bps maximum speed.

%B4

Select 4800bps maximum speed.

%B5

Select 9600bps uncoded maximum speed.

%B6

Select 9600bps maximum speed.

%B7

Select 7200bps maximum speed.

%B8

Select 12Kbps maximum speed.

%B9

Select 14.4Kbps maximum speed.

%B11

Select 16.8Kbps maximum speed.

%B12

Select 19.2Kbps maximum speed.

%B13

Select 21.6Kbps maximum speed.

%B14

Select 24Kbps maximum speed.

%B15

Select 26.4Kbps maximum speed.

%B16

Select 28.8Kbps maximum speed.

%B17

Select 31.2Kbps maximum speed.

%B18

Select 33.6Kbps maximum speed.

DISCONNECT BUFFER DELAY

Type:

Configuration

Format:

AT [cmds] %Dn [cmds]

Range:

0-255

Unit:

1 second

Description:

Sets the length of time that the modem processes data in its send and receive buffers before it disconnects.

DISPLAY PRODUCT VERSION

Type:

Immediate

Format:

AT [cmds] %V [cmds]

Description:

Displays product version.

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

DTE RTS/CTS flow control enabled

í \Q3

Bi-directional RTS/CTS flow control enabled

\Q4

DCE flow control disabled

\Q5

DCE XON/XOFF flow control enabled

\Q6

DCE RTS/CTS flow control enabled

\Q7

DCE RTS/CTS flow control enabled

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] \Jn [cmds]

Description:

Sets operation of serial port speed

Command

Function

í \J0

Serial speed locked

\J1

Serial speed follows connect speed

\J2

230.4Kbps DTE speed enabled

\J3

230.4Kbps DTE speed disabled

REMOTE CONFIGURATION

Type:

Configuration

Format:

AT [cmds] D<#>%Tn [cmds]

Description:

Initiates a remote configuration session. This command may follow a dial command, omitting the equal sign, to initiate remote configuration immediately on connection. %T with no parameter will quit the current session.

REMOTE CONFIGURATION PASSWORD

Type:

Configuration

Format:

AT [cmds] %P1=nnnn [cmds]

Default:

N/A

Range:

0-99999999, D, <none>

Description:

Sets the security code that a remote modem must send to begin a remote configuration sessions. If nnnn is omitted, the code will be cleared; if a D is given, remote configuration is disabled.

RETRAIN SENSITIVITY

Type:

Configuration

Format:

AT [cmds] %Rn [cmds]

Description:

Sets how poor line conditions must be before the modem will initiate a retrain.

Command

Function

%R0

Modem will not initiate retrain.

%R1

Modem will initiate retrain when the Bit Error Rate exceeds 10-5.

%R2

Modem will initiate retrain when the Bit Error Rate exceeds 10-4.

%R3

Modem will initiate retrain when the Bit Error Rate exceeds 10-3.

RING INDICATOR

Type:

Configuration

Format:

AT [cmds] \Rn [cmds]

Description:

Controls the behavior of the ring indicator signal on pin 22 of the serial port.

Command

Function

\R0

Ring indicate signal high during rings and forced high for duration of call.

\R1

Ring indicate signal high during rings only.

V.42 DETECTION

Type:

Configuration

Format:

AT [cmds] \Mn [cmds]

Description:

Enables/disables fast data sequence expedite V.42 link negotiation

Command

Function

\M0

V.42 fast data sequence enabled

í \M1

V.42 fast data sequence disabled

ANSWER/ORIGINATE

Type:

Configuration

Format:

AT [cmds] *ORn [cmds]

Description:

Selects either answer or originate mode in leased line operation

Command

Function

*OR0

Originate mode enabled

*OR1

Answer mode enabled

AUTO-ANSWER OVERRIDE

Type:

Immediate

Format:

AT [cmds] *IC [cmds]

Description:

Instructs the modem to ignore the incoming call, if the modem is set to automatically answer.

AUTO-DIAL STORED NUMBER

Type:

Configuration

Format:

AT [cmds] *Aun [cmds]

Range:

0-9

Description:

Sets the auto-dialing function to dial the number stored in memory location n.

BILATERAL DIGITAL LOOPBACK

Type:

Configuration

Format:

AT [cmds] *DGn [cmds]

Description:

Enables/disables bilateral loopback test

Command

Function

í *DG0

Bilateral digital loopback test disabled

*DG1

Bilateral digital loopback test enabled

CALLBACK NUMBER

Type:

Configuration

Format:

AT [cmds] $Cn=x [cmds]

Description:

Programs callback number x and assigns it to user number n. Required for security levels 2 & 3.

CALLER ID

Type:

Configuration

Format:

AT [cmds] *IDn [cmds]

Description:

Controls the Caller ID function

Command

Function

*ID0

Caller ID disabled

*ID1

Caller ID enabled

COMMAND SET

Type:

Configuration

Format:

AT [cmds] *NTn [cmds]

Description:

Disables the AT command set.

Command

Function

*NT0

Command set disabled.

*NT1

Command set enabled.

DIAL BACKUP

Type:

Configuration

Format:

AT [cmds] *DBn [cmds]

Description:

Controls dial backup operation

Command

Function

*DB0

Manual dial backup enabled

*DB1

Automatic dial backup enabled

DISCONNECT RESET

Type:

Configuration

Format:

AT [cmds] *ROn [cmds]

Description:

Selects whether the modem will reset on disconnect.

Command

Function

*RO0

Modem will not reset on disconnect.

*RO1

Modem will reset on disconnect.

DISPLAY SERIAL NUMBER

Type:

Immediate

Format:

AT [cmds] $V [cmds]

Description:

Displays product serial number.

DISPLAY STORED NUMBERS

Type:

Immediate

Format:

AT [cmds] *ND [cmds]

Description:

Displays all stored phone numbers.

DISTINCTIVE RING

Type:

Configuration

Format:

AT [cmds] *DR=n [cmds]

Description:

Controls the Distinctive Ring function

Command

Function

*DR=0

Distinctive Ring disabled

*DR=1

Distinctive Ring enabled

EXTENDED PASSWORD FEATURES

Type:

Configuration

Format:

AT [cmds] $Wn [cmds]

Description:

Sets extended password features. Command set by superuser (system administrator) $W? queries setting

Command

Function

$W0

Clears extended settings

$W1

Enables a regular user to change his password and callback number

$W2

Enables a remote user to gain superuser privileges

FORCE RETRAIN

Type:

Immediate

Format:

AT [cmds] *RRn [cmds]

Description:

Forces the modem to attempt to retrain to the selected speed.

Command

Function

*RR0

Attempt 2400bps speed.

*RR1

Attempt 4800bps speed.

*RR2

Attempt 7200bps speed.

*RR3

Attempt 9600bps speed.

*RR4

Attempt 12Kbps speed.

*RR5

Attempt 14.4Kbps speed.

*RR6

Attempt 16.8Kbps speed.

*RR7

Attempt 19.2Kbps speed.

*RR8

Attempt 21.6Kbps speed.

*RR9

Attempt 24Kbps speed.

*RR10

Attempt 26.4Kbps speed.

*RR11

Attempt 28.8Kbps speed.

*RR12

Attempt 31.2Kbps speed.

*RR13

Attempt 33.6Kbps speed.

HELP SCREENS

Type:

Immediate

Format:

AT $H=xxxx

Description:

Shows help screens. If a string is included as shown in the example, the modem will search for the string; otherwise, the whole help section will be displayed.

HIGH SECURITY ENABLE

Type:

Configuration

Format:

AT [cmds] $EH=x [cmds]

Description:

Enables security for password x. Superuser password must be specified

ILLEGAL ATTEMPT COUNTER

Type:

Configuration

Format:

AT [cmds] $Mn [cmds]

Description:

Keeps count of illegal attempts by users to gain superuser status. Superuser may enter user account n to reset count of specific user. $M* resets illegal attempt count for all users.

LINE CURRENT DISCONNECT

Type:

Configuration

Format:

AT [cmds] *LCn [cmds]

Description:

Causes the modem to disconnect if the telephone line�s current drops.

Command

Function

*LC0

Line current disconnect disabled

*LC1

Disconnect after 8ms if current is lost.

*LC2

Disconnect after 90ms if current is lost.

LOCAL ANALOG LOOPBACK

Type:

Configuration

Format:

AT [cmds] *LAn [cmds]

Description:

Enables/disables DTE controlled local analog loopback

Command

Function

í *LA0

Local analog loopback disabled. Pin 18 toggle ignored

*LA1

Local analog loopback enabled (pin 18)

LOCAL LOGOFF

Type:

Configuration

Format:

AT [cmds] $$ [cmds]

Description:

Allows user to logoff after local session

LOCAL LOGON

Type:

Configuration

Format:

AT [cmds] $n=x [cmds]

Description:

Allows user n secure logon with password x

LOCAL SERIAL PORT SPEED CHANGE ON PIN 23

Type:

Configuration

Format:

AT [cmds] *FBn [cmds]

Description:

Selects whether a voltage transition on pin 23 will cause the modem to change the serial port speed.

Command

Function

*FB0

Pin 23 transition ignored.

*FB1

Pin 23 negative causes modem to increase serial port speed; pin 23 positive causes modem to decrease serial port speed.

MANUAL DIAL BACKUP

Type:

Configuration

Format:

AT [cmds] *LDn [cmds]

Description:

Autodials the number if modem is in originate mode and manual dial backup is selected. Available for leased line operation only

MODULATION PROTOCOLS

Type:

Configuration

Format:

AT [cmds] *MMn [cmds]

Description:

Selects the protocol to use on the next connection.

Command

Function

*MM0

Auto-detect fastest common protocol.

*MM1

V.21.

*MM2

Bell 103.

*MM4

Bell 212A.

*MM5

V.22bis.

*MM6

V.27bis 4-wire leased line

*MM8

V.29 4-wire leased line

*MM10

V.33 4-wire leased line

*MM11

V.32bis.

*MM12

V.34.

PASSWORD SELECTION

Type:

Configuration

Format:

AT [cmds] $C=x, y [cmds]

Description:

Changes password where x represents the old password and y the new password. Setting y to (-) deletes password x from memory and disables security features

PASSWORD SELECTION

Type:

Configuration

Format:

AT [cmds] $Pn=x [cmds]

Range (n):

0 - 50

Range (x):

4 - 34

Unit (x):

ASCII

Description:

Selects password x and assigns it to user number n. Superuser privileges are given to user number 1.

REMOTE CONFIGURATION

Type:

Configuration

Format:

AT [cmds] *RAn [cmds]

Description:

Enables/disables remote configuration

Command

Function

*RA0

Remote configuration disabled

*RA1

Remote configuration disabled

REMOTE CONNECTION SPEED

Type:

Configuration

Format:

AT [cmds] *RBn [cmds]

Description:

Forces the DTE speed to selected setting

Command

Function

*RB0

300bps

*RB1

600bps

*RB2

1200bps

*RB3

2400bps

*RB4

4800bps

*RB5

7200bps

*RB6

9600bps

*RB7

12.0Kbps

*RB8

14.4Kbps

*RB9

16.8Kbps

*RB10

19.2Kbps

*RB11

21.6Kbps

*RB12

24.0Kbps

*RB13

26.4Kbps

*RB14

28.8Kbps

*RB15

28.4Kbps

*RB16

57.6Kbps

*RB17

115.2Kbps

REMOTE DIGITAL LOOPBACK

Type:

Configuration

Format:

AT [cmds] *RDn [cmds]

Description:

Enables/disables DTE controlled remote digital loopback

Command

Function

í *RD0

Remote digital loopback disabled. Pin 21 toggle ignored

*RD1

Remote digital loopback enabled (pin 21)

REMOTE FORMAT

Type:

Configuration

Format:

AT [cmds] *RFn [cmds]

Description:

Selects number of data bits, number of stop bits and parity in remote configuration

Command

Function

*RF0

7 data bits, mark parity, 1 stop bit

*RF1

7 data bits, no parity, 2 stop bits

*RF2

7 data bits, odd parity, 1 stop bit

*RF3

7 data bits, even parity, 1 stop bit

*RF4

8 data bits, mark parity, 1 stop bit

*RF5

8 data bits, no parity, 1 stop bit

*RF6

8 data bits, odd parity, 1 stop bit

*RF7

8 data bits, even parity, 1 stop bit

REMOTE SAVE

Type:

Configuration

Format:

AT [cmds] *RQn [cmds]

Description:

Selects whether to save or discard remote configuration

Command

Function

*RQ0

Save remote configuration and exit

*RQ1

Discard remote configuration and exit

RESULT CODE MODE

Type:

Configuration

Format:

AT [cmds] *RCn [cmds]

Description:

Selects normal or Motorola result code numbering.

Command

Function

í *RC0

Result code 15 is CONNECT 4800 and code 18 is CONNECT 9600 (standard).

*RC1

Result code 11 is CONNECT 4800 and code 12 is CONNECT 9600 (Motorola).

RETURN TO LEASED LINE FROM DIAL BACKUP

Type:

Configuration

Format:

AT [cmds] *LBn [cmds]

Description:

If modem is in dial backup mode, switches to leased line operation. During leased line operation with forced answer enabled; modem waits for a dial backup call

SECURITY - REPORT BLOCK USER SETTINGS

Type:

Immediate

Format:

AT [cmds] $IBn [cmds]

Description:

Reports security level and callback number for block of ten consecutive numbers starting with user number n. Command set by superuser (system administrator).

SECURITY - REPORT USER SETTINGS

Type:

Immediate

Format:

AT [cmds] $In [cmds]

Description:

Reports security level and callback number for user n. A normal user may only check his own settings

SECURITY DISABLE

Type:

Configuration

Format:

AT [cmds] $D=x [cmds]

Description:

Disables security for password x. $D? queries setting

SECURITY ENABLE

Type:

Configuration

Format:

AT [cmds] $E=x [cmds]

Description:

Enables security for password x. $E? queries setting

SECURITY LEVEL

Type:

Configuration

Format:

AT [cmds] $Ln=x [cmds]

Description:

Assigns security level x to user number n. Command set by superuser (system administrator)

SECURITY RESET

Type:

Configuration

Format:

AT [cmds] $DR[cmds]

Description:

Resets security to its initial state. All passwords are deleted. Not available for remote configuration

SECURITY RESET

Type:

Configuration

Format:

AT [cmds] $F=x$x [cmds]

Description:

Resets security to factory default settings. x=superuser password

STORE PASSWORD

Type:

Configuration

Format:

AT [cmds] $S=x [cmds]

Description:

Sets an empty password to location x. Only effective when password memory is empty or only has one password stored.

SUPERUSER PRIVILEGE

Type:

Configuration

Format:

AT [cmds] $S=x [cmds]

Description:

Allows normal user to gain superuser status by entering superuser password x

SYSTEM STATUS

Type:

Immediate

Format:

AT [cmds] $E? [cmds]

Description:

Queries system security status

TALK/DATA MODE

Type:

Immediate

Format:

AT [cmds] *DAn [cmds]

Description:

Selects talk or data mode.

Command

Function

í *DA0

Talk mode enabled.

*DA1

Data mode enabled.

TRANSMISSION LEVEL - LEASED-LINE

Type

Configuration

Format

AT [cmds] TLn [cmds]

Range

0-30

Unit

-1 dBm

Description

Sets the signal level for transmission over leased-lines

TRANSMISSION LEVEL - SWITCHED LINE

Type:

Configuration

Format:

AT [cmds] *TDn [cmds]

Default:

9

Range:

9-30

Unit:

-1 dBm

Description:

Sets the transmitted signal level when the modem is connected to a switched phone line.

USER REMOVAL

Type:

Configuration

Format:

AT [cmds] $Rn [cmds]

Range (n):

2 - 50

Description:

Removes user n from active status without deleting user information. Command set by superuser (system administrator). Superuser (user number 1) may not be removed from system.

USER STATUS

Type:

Immediate

Format:

AT [cmds] $S? [cmds]

Description:

Queries whether current user has normal or superuser security status

V.32 HANDSHAKE OPTIONS

Type:

Configuration

Format:

AT [cmds] *FTn [cmds]

Description:

Shortens V.32 and V.32bis handshake time.

Command

Function

*FT0

Normal handshake sequence.

*FT1

Training time is shortened by 2 seconds in V.32 and V.32bis modes.

V.34 RETRAIN SENSITIVITY

Type:

Configuration

Format:

AT [cmds] *THn [cmds]

Description:

Sets how poor line conditions must be before the modem will initiate a retrain when in V.34 mode.

Command

Function

*TH0

Modem will initiate retrain when the Bit Error Rate exceeds 10-6.

*TH1

Modem will initiate retrain when the Bit Error Rate exceeds 10-4.

*TH2

Modem will initiate retrain when the Bit Error Rate exceeds 10-2.

V.34 SPLIT-SPEED

Type:

Configuration

Format:

AT [cmds] *ASn [cmds]

Description:

Controls V.34 asymmetric bit rate capability.

Command

Function

*AS0

V.34 split-speed disabled.

*AS1

V.34 split-speed enabled.

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Register

Format:

AT [cmds] S64=n [cmds]

Default:

0

Range:

0-127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character. S64=0 will disable this function.

BIT-MAPPED REGISTER S14

Format:

AT [cmds] S14=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

0

Not used

1

í 1

Command echo enabled

2

í 0

1

Result codes disabled

3

í 1

Display result codes in verbose format

4

í 0

1

Dumb mode

5

í 0

1

Pulse dial enabled

6

í 0

1

Cleardown disabled