...because we can't all be on the bleeding edge...





V.3600

MOTOROLA, INC.

V.3600

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

Bell 103, 212A

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/

A, E, F, M, O, V, X

&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

 

Note: See MHI documentation for complete information.

PROPRIETARY AT COMMAND SET

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

Reports product code

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

EXTENDED AT COMMANDS

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

Break from DTE

connect state, reliable/normal mode

Break from DTE

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] %T=n [cmds]

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

SPECIAL COMMANDS

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.

S(status) REGISTERS

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

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

í 0

1

Smart mode

Dumb mode

5

í 0

1

Tone dial enabled

Pulse dial enabled

6

í 0

1

Cleardown enabled

Cleardown disabled

7

0

í 1

Answer mode enabled

Originate mode enabled

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Range:

0-255

Unit:

Bit-mapped

Description:

Selects CTS/DCD/DSR signals, low DTR action, and the long space disconnect function.

Bit

Value

Function

0

í 00

10

01

11

DSR forced high

DSR normal

DSR off 5 seconds after disconnect

DSR follows off-hook

1

00

í 10

01

11

DCD forced high

DCD normal

DCD off 5 seconds after disconnect

DCD follows RTS

2

0

í 1

CTS follows RTS by S26 delay

CTS forced high

4, 3

00

01

í 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

00

í 10

01

11

DCD forced high

DCD normal

DCD off 5 seconds after disconnect

DCD follows RTS

6

í 00

10

01

11

DSR forced high

DSR normal

DSR off 5 seconds after disconnect

DSR follows off-hook

7

0

í 1

Long space disconnect function disabled

Long space disconnect function enabled

 

 

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Range:

0-189

Unit:

Bit-mapped

Description:

Grants/denies remote digital loopback, and sets guard tone.

Bit

Value

Function

0

0

í 1

Remote digital loopback denied

Remote digital loopback allowed

5 - 1

0

Not used

7, 6

í 00

01

10

Guard tone disabled

Guard tone 550Hz enabled

Guard tone 1800Hz enabled

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Default:

9

Range:

0 - 127

Description:

Selects sync/async mode, line type, clock source, and ITU-T/Bell modes.

Bit

Value

Function

1, 0

í 00

01

10

11

Asynchronous command and data modes.

Asynchronous command, synchronous connect mode.

DTR dialing enabled, synchronous connect mode.

Manual dialing only, synchronous connect mode.

2

í 0

1

Switched line.

Leased line.

3

0

Not used.

5, 4

í 00

01

10

Internal DTE transmit clock source.

External DTE transmit clock source.

Slave DTE transmit clock source.

6

0

í 1

Asynchronous DTR dialing enabled.

Asynchronous DTR dialing disabled.

BIT-MAPPED REGISTER S29

Format

AT [cmds] S29=n [cmds]

Default:

0

Range:

0 - 135

Description:

Controls command set, option retaining, V.32 fast handshaking, and DTE fallback.

Bit

Value

Function

0

í 0

1

AT command set enabled.

AT command set disabled.

1

í 0

1

Modem will not reset on disconnect.

Modem will reset on disconnect.

2

í 0

1

Normal V.32 handshake sequence.

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

6 - 3

0

Not used.

7

í 0

1

DTE fallback disabled

DTE fallback enabled

 

 

BIT-MAPPED REGISTER S32

Format

AT [cmds] S32=n [cmds]

Default:

0

Range:

0 - 255

Description:

Controls leased line option, line current disconnect, and dial backup

Bit

Value

Function

0

í 0

1

2-wire leased line operation

4-wire leased line operation

1

í 0

1

Short line current disconnect

Long line current disconnect

2

0

í 1

Line current disconnect disabled

Line current disconnect enabled

3

í 0

1

Manual dial backup enabled

Automatic dial backup enabled

4-7

0

Not used.

BIT-MAPPED REGISTER S53

Format

AT [cmds] S53=n [cmds]

Default:

0

Range:

0 - 255

Description:

Controls automatic rate adaption options

Bit

Value

Function

0

í 0

1

Rate renegotiation above initial connect disabled

Rate renegotiation above initial connect enabled

1

0

Not used.

3, 2

í 00

01

10

11

Automatic rate adaption threshold disabled

Modem will initiate retrain on low Bit Error Rate (10-6)

Modem will initiate retrain on medium Bit Error Rate (10-4)

Modem will initiate retrain on high Bit Error Rate (10-2)

4

0

Not used.

5

í 0

1

Protocol negotiation status disabled

Protocol negotiation status enabled

6

0

Not used.

7

í 0

1

Distinctive ring detection disabled

Distinctive ring detection enabled

BIT-MAPPED REGISTER S57

Format:

AT [cmds] S57=n [cmds]

Default:

0

Range:

0 - 33

Description:

Controls result code format and busy out.

Bit

Value

Function

0

í 0

1

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

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

4 - 1

0

Not used.

5

í 0

1

Busy out during local analog loopback test disabled.

Busy out during local analog loopback test enabled.

6, 7

0

Not used.

 

 

BIT-MAPPED REGISTER S60

Format

AT [cmds] S60=n [cmds]

Default:

67

Range:

0 - 255

Description:

Controls auto-retrain, MNP, auto-reliable time buffering, RI signal, and extended result codes.

Bit

Value

Function

0

0

í 1

Auto-retrain disabled.

Auto-retrain enabled.

1

0

í 1

MNP disabled.

MNP enabled.

2

í 0

1

Data is discarded during auto-reliable time.

Data is buffered during auto-reliable time.

5 - 3

0

Not used.

6

0

í 1

RI signal high during rings, and forced high for duration of call.

RI signal high during rings only.

7

í 0

1

Extended result codes disabled.

Extended result codes enabled.

BIT-MAPPED REGISTER S70

Format

AT [cmds] S70=n [cmds]

Default:

15

Range:

0 - 15

Description:

Controls connect mode and V.42 negotiation mode.

Bit

Value

Function

2, 1, 0

000

001

010

011

100

101

110

í 111

Normal mode enabled.

Direct mode enabled.

MNP mode only enabled.

MNP mode with fallback to normal mode enabled.

V.42 mode only enabled.

V.42 mode with fallback to normal mode enabled.

V.42 mode with fallback to MNP enabled.

V.42 mode with fallback to MNP and normal modes enabled.

3

0

í 1

Normal V.42 handshaking enabled.

Fast V.42 handshaking enabled.

7 - 4

0

Not used

BIT-MAPPED REGISTER S72

Format

AT [cmds] S72=n [cmds]

Default:

0

Range:

0 - 137

Description:

Controls serial port lock, CTS signal, and auto-callback function.

Bit

Value

Function

0

í 0

1

Serial speed locked.

Serial speed follows connect speed.

2, 1

00

Not used.

3

í 0

1

CTS normal.

CTS follows DCD.

6 - 4

0

Not used.

7

í 0

1

Auto-callback disabled.

Auto-callback enabled.

 

 

BIT-MAPPED REGISTER S82

Format

AT [cmds] S82=n [cmds]

Description:

Controls negotiation status

Bit

Value

Function

1 - 0

0

Not used

3 - 2

00

í 01

10

Extended result codes disabled

Extended result codes enabled

Display DCE rate

7 - 4

0

Not used

BIT-MAPPED REGISTER S84

Format

AT [cmds] S84=n [cmds]

Description:

Enables/disables key abort

Bit

Value

Function

0

í 0

1

Key abort enabled

Key abort disabled

7 - 1

0

Not used

BIT-MAPPED REGISTER S95

Format:

AT [cmds] S95=n [cmds]

Range:

0 - 255

Description:

Controls non-linear coding, pre-emphasis, shaping, and pre-coding.

Bit

Value

Function

0

0

í 1

V.8 answer disabled for modulations below V.34.

V.8 answer enabled for modulations below V.34.

3 - 1

0

Not used.

4

0

í 1

Non-linear coding disabled.

Non-linear coding enabled.

5

0

í 1

Pre-emphasis disabled.

Pre-emphasis enabled.

6

0

í 1

Constellation shaping disabled.

Constellation shaping enabled.

7

0

í 1

Pre-coding disabled.

Pre-coding enabled.

BIT-MAPPED REGISTER S96

Format:

AT [cmds] S96=n [cmds]

Range:

0 - 156

Description:

Controls TX level deviation and asymmetric bit rates.

Bit

Value

Function

4 - 0

0

Not used.

5

0

í 1

Asymmetric bit rates disabled.

Asymmetric bit rates enabled.

6

0

Not used.

7

0

í 1

TX level deviation disabled.

TX level deviation enabled.

 

 

BIT-MAPPED REGISTER S97

Format

AT [cmds] S97=n [cmds]

Default:

0

Range:

0 - 32

Description:

Controls automatic rate adaption options in V.34 mode

Bit

Value

Function

0, 1

00

01

í 10

V.34 threshold low (10-6 Bit Error Rate)

V.34 threshold medium (10-4 Bit Error Rate)

V.34 threshold high (10-2 Bit Error Rate)

2—7

0

Not used.

BREAK LENGTH

Type:

Register

Format:

AT [cmds] S79=n [cmds]

Default:

35

Range:

0 - 255

Unit:

20ms

Description:

Sets the length of breaks sent from DCE to DTE.

BREAK TYPE

Type:

Register

Format:

AT [cmds] S59=n [cmds]

Description:

Configures action of break signal.

Command

Break from DTE

Reliable/Normal mode

Break from DTE

Direct mode

Modem receives \B

Break from remote modem

S59=0

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.

S59=1

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.

S59=2

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.

S59=3

Send break to remote modem immediately.

Send break to remote modem immediately.

Send break to remote modem immediately.

Send break to DTE immediately.

S59=4

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 S59=5

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.

 

 

CHARACTER LENGTH AND PARITY

Format

AT [cmds] S61? [cmds]

Default:

Read-only

Range:

0 - 56

Description:

Reports current character length and parity.

Bit

Value

Meaning

2 - 0

0

Not used.

3

0

1

7 bit character length set.

8 bit character length set.

5, 4

00

01

10

11

MARK parity.

No parity.

Odd parity.

Even parity.

7, 6

0

Not used.

COMPRESSION

Type:

Register

Format:

AT S56=n

Description:

Selects data compression.

Command

Function

S56=0

Data compression disabled.

S56=1

Data compression enabled on transmit only.

Í S56=2

Data compression enabled on receive only.

í S56=3

Data compression enabled.

COMPRESSION AND ERROR CORRECTION - CURRENT

Type:

Register - read-only

Format:

AT [cmds] S71? [cmds]

Description:

Reports current compression and error correction protocols.

Value

Meaning

0

No compression or error correction protocols active.

1

Negotiation in progress.

2

MNP2 active.

3

MNP3 active.

4

MNP4 active.

5

MNP5 active.

6

V.42 active.

7

V.42bis active.

 

 

CONNECTION SPEED DISPLAY

Type:

Register - read-only

Format:

AT [cmds] S67? [cmds]

Description:

Reports current connection speed.

Value

Meaning

1

300bps

3

1200bps

4

2400bps

5

4800bps

6

7200bps

7

9600bps uncoded

8

9600bps trellis

9

12.0Kbps

10

14.4Kbps

11

16.8Kbps

12

19.2Kbps

13

21.6Kbps

14

24.0Kbps

15

26.4Kbps

16

28.8Kbps

17

31.2Kbps

18

33.6Kbps

CONNECTION SPEED LOWER LIMIT

Type:

Register

Format:

AT [cmds] S81=n [cmds]

Description:

Sets minimum allowed connection speed.

Command

Function

S81=0

No minimum speed.

í S81=1

No minimum speed.

S81=2

1200bps

S81=3

2400bps

S81=4

4800bps

S81=5

9600bps uncoded

S81=6

9600bps trellis

S81=7

12.0Kbps

S81=8

14.4Kbps

S81=9

600bps

S81=11

16.8Kbps

S81=12

19.2Kbps

S81=13

21.6Kbps

S81=14

24.0Kbps

S81=15

26.4Kbps

S81=16

28.8Kbps

S81=17

31.2Kbps

S81=18

33.6Kbps

 

 

CONNECTION SPEED UPPER LIMIT

Type:

Configuration

Format:

AT [cmds] S69=n [cmds]

Description:

Sets maximum allowed connection speed.

Value

Function

0

Rate selected by register S80

1

300bps

3

1200bps

4

2400bps

5

4800bps

6

7200bps

7

9600bps uncoded

8

9600bps trellis

9

12.0Kbps

10

14.4Kbps

11

16.8Kbps

12

19.2Kbps

13

21.6Kbps

14

24.0Kbps

15

26.4Kbps

16

28.8Kbps

17

31.2Kbps

í 18

33.6Kbps

DIAL BACKUP TIMER

Type:

Register

Format

AT [cmds] S28=n [cmds]

Range:

0-255

Default:

15

Unit:

1 minute

Description:

Specifies the amount of time the modem will remain in dial backup mode before retrying leased line mode. S28=0 disables timer

DISCONNECT BUFFER DELAY

Type:

Register

Format:

AT [cmds] S62=n [cmds]

Default:

0

Range:

0-255

Unit:

1 second

Description:

Configures how long the modem will wait to disconnect if there is data in the transmit or receive buffers.

DTR IGNORE TIME ON CONNECT

Type:

Register

Format

AT [cmds] S25=n [cmds]

Range:

0-255

Default:

5

Unit:

10ms

Description:

Sets the time the modem will ignore a low DTR after a connection

 

 

FLOW CONTROL CHARACTER - XOFF FROM TERMINAL

Type:

Register

Format:

AT [cmds] S45=n [cmds]

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character the terminal sends to represent XOFF.

FLOW CONTROL CHARACTER - XOFF TO TERMINAL

Type:

Register

Format:

AT [cmds] S50=n [cmds]

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character the modem sends to represent XOFF.

FLOW CONTROL CHARACTER - XON FROM TERMINAL

Type:

Register

Format:

AT [cmds] S44=n [cmds]

Default:

17

Range:

0-127

Unit:

ASCII

Description:

Sets the character the terminal sends to represent XON.

FLOW CONTROL CHARACTER - XON TO TERMINAL

Type:

Register

Format:

AT [cmds] S49=n [cmds]

Default:

17

Range:

0-127

Unit:

ASCII

Description:

Sets the character the modem sends to represent XON.

FLOW CONTROL MODE

Format

AT [cmds] S54=n [cmds]

Default:

33

Range:

0 - 123

Description:

Controls flow control type and pass-through.

Bit

Value

Function

1, 0

00

01

10

í 11

Flow control disabled.

Bidirectional XON/XOFF flow control enabled.

CTS flow control by DCE enabled.

Bidirectional CTS/RTS flow control enabled.

2

0

Not used.

3

í 0

1

Flow control disabled.

Flow control enabled.

4

í 0

1

XON/XOFF signals trapped by local modem.

XON/XOFF passed through local modem.

6, 5

00

01

10

11

Flow control by DCE disabled.

XON/XOFF flow control by DCE enabled.

RTS flow control by DCE enabled.

RTS flow control by DCE enabled.

 

 

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] S58=n [cmds]

Default:

0

Range:

0-255

Unit:

1 minute

Description:

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

LEASED LINE BACKUP NUMBER

Type:

Register

Format:

AT [cmds] S35=n [cmds]

Description:

Sets the stored number the modem will dial for DTR dialing and leased-line backup.

LOCAL SERIAL PORT SPEED DISPLAY

Type:

Configuration

Format:

AT [cmds] S80=n [cmds]

Description:

Reports the current serial port speed.

Value

Meaning

1

300bps

2

600bps

3

1200bps

4

2400bps

5

4800bps

6

7200bps

7

9600bps

8

12.0Kbps

9

14.4Kbps

10

16.8Kbps

11

19.2Kbps

12

21.6Kbps

13

24.0Kbps

14

26.4Kbps

15

28.8Kbps

16

31.2Kbps

17

33.6Kbps

18

38.4Kbps

19

57.6Kbps

20

115.2Kbps

MAXIMUM BLOCK SIZE FOR TRANSMISSION

Type:

Register

Format:

AT [cmds] S63=n [cmds]

Description:

Sets the maximum transmittable block size.

Command

Function

S63=0

MNP block size is 64 characters.

S63=1

MNP block size is 128 characters.

S63=2

MNP block size is 192 characters.

í S63=3

MNP block size is 256 characters.

 

 

MODULATION PROTOCOL

Type:

Configuration

Format:

AT [cmds] S88=n [cmds]

Description:

Selects the protocol to use on the next connection.

Command

Function

í S88=0

Auto-detect fastest protocol

S88=1

V.21

S88=2

Bell 103

S88=4

Bell 212/A

S88=5

V.22bis

S88=6

V.27 (leased line only)

S88=8

V.29 (leased line only)

S88=10

V.33bis (leased line only)

S88=11

V.32bis

S88=12

V.34.

MODULATION PROTOCOL DISPLAY

Type:

Register - read-only

Format:

AT [cmds] S91? [cmds]

Description:

Returns a value indicating the current protocol.

Value

Meaning

1

V.21

2

Bell 103

4

Bell 212/A

5

V.22bis

6

V.27 (leased line only)

8

V.29 (leased line only)

10

V.33bis (leased line only)

11

V.32bis

12

V.34.

REMOTE CONFIGURATION ESCAPE CHARACTER

Type:

Register

Format

AT [cmds] S41=n [cmds]

Range:

0-255

Default:

61

Unit:

ASCII

Description:

Selects the escape character for remote configuration

REMOTE CONFIGURATION GUARD TIME

Type:

Register

Format

AT [cmds] S42=n [cmds]

Range:

0-255

Default:

50

Unit:

20ms

Description:

Selects the guard time for remote configuration

 

 

RTS TO CTS DELAY

Type:

Register

Format

AT [cmds] S26=n [cmds]

Range:

0 - 255

Unit:

10ms

Description:

Sets the duration of delay for CTS to respond to RTS status change

SECURITY - AUTO-CALLBACK DELAY

Type:

Register

Format:

AT [cmds] S78=n [cmds]

Default:

30

Range:

0-255

Unit:

1 second

Description:

Configures how long the modem will wait to execute the auto-callback sequence after an incoming call is detected.

SECURITY - CALLBACK DELAY

Type:

Register

Format:

AT [cmds] S74=n [cmds]

Default:

15

Range:

0-255

Unit:

1 second

Description:

Determines how long the modem will wait to execute a callback sequence after the user has disconnected.

SECURITY - CALLBACK RETRY

Type:

Register

Format:

AT [cmds] S75=n [cmds]

Default:

0

Range:

0-255

Unit:

1 redial

Description:

Sets how many times the modem will attempt to execute a callback if the first call fails.

SECURITY - CALLBACK RETRY DELAY

Type:

Register

Format:

AT [cmds] S76=n [cmds]

Default:

15

Range:

0-255

Unit:

1 second

Description:

Configures how long the modem will wait to execute another callback sequence after one has failed.

SECURITY - FAILED LOGIN ATTEMPT MAXIMUM

Type:

Register

Format:

AT [cmds] S77=n [cmds]

Default:

0

Range:

0-255

Unit:

1 attempt

Description:

Sets the maximum number of failed logins the modem will accept until it disconnects. S77=0 disables

 

 

SECURITY - PASSWORD TIME

Type:

Register

Format:

AT [cmds] S73=n [cmds]

Default:

0

Range:

0-255

Unit:

1 second

Description:

Determines how long the modem will wait for a password when in secure mode.

TEST MODES

Format

AT [cmds] S34=n [cmds]

Default:

0

Range:

0 - 15

Description:

Initiates and controls loopback test options.

Bit

Value

Function

0

0

Not used.

1

í 0

1

End bidirectional local digital loopback test.

Begin bidirectional local digital loopback test.

2

í 0

1

Pin 18 ignored

Pin 18 toggle initiates local analog loopback test.

3

í 0

1

Pin 21 ignored

Pin 21 toggle initiates remote digital loopback test.

TRANSMISSION LEVEL - DIAL LINE

Type

Register or Configuration

Format

AT [cmds] S51=n [cmds]

Range

9-30

Unit

-1 dBm

Description

Sets the signal level for dial line transmissions

TRANSMISSION LEVEL - LEASED-LINE

Type

Register or Configuration

Format

AT [cmds] S52=n [cmds]

Range

0-30

Unit

-1 dBm

Description

Sets the signal level for transmission over leased-lines

 

 

V.25bis OPTIONS

Format

AT [cmds] S30=n [cmds]

Default:

0

Range:

0 - 255

Description:

Controls V.25bis character set, VAL response, NRZ/NRZI, and communications mode.

Bit

Value

Function

0

0

Not used.

1

í 0

1

Use ASCII character set.

Use EBCDIC character set.

2

í 0

1

VAL response enabled.

VAL response disabled.

4, 3

00

Not used.

5

í 0

1

Use NRZ mode.

Use NRZI mode.

7, 6

í 00

01

10

11

V.25bis command set disabled.

V.25bis bisynchronous command, synchronous connect mode.

V.25bis SDLC command, synchronous connect mode.

V.25bis asynchronous command, synchronous connect mode.