NETCOMM LIMITED

SMARTMODEM 336D (SM3660, SM3660M, SM3660V)

Card Type

Modem (synchronous/asynchronous)

Chipset

Unidentified

I/O Options

Voice, speakerphone, DSVD

Maximum Data Rate

33.6Kbps

Maximum Fax Rate

14.4Kbps

Data Modulation

Bell 103A, 212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34

Rockwell V.FC

Fax Modulation

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

Error Correction/Compression

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

Fax Class

Class I

Data Bus

Serial

CONNECTIONS

Function

Label

Function

Label

Talk/Data or Mode button

BT1

Telephone line in

CN3

Talk/Data or Mode button

BT2

Telephone line out

CN4

DC power in

CN1

Power switch

SW2

Serial port

CN2

   

Note: It is not known which of BT1 and BT2 is the Talk/Data button and which is the Mode button.

USER CONFIGURABLE SETTINGS

Setting

Label

Position

DTR normal (%F1 set)

SW1/1

On

DTR forced high (%F1 set)

SW1/1

Off

DSR normal (%F1 set)

SW1/2

On

DSR follows DTR (%F1 set)

SW1/2

Off

Test pattern disabled (smart mode)

SW1/3

On

Test pattern enabled (smart mode)

SW1/3

Off

Auto-answer enabled (dumb mode)

SW1/3

On

Auto-answer disabled (dumb mode)

SW1/3

Off

USER CONFIGURABLE SETTINGS (CON'T)

Setting

Label

Position

Smart mode

SW1/4

On

Dumb mode

SW1/4

Off

Analog loopback test enabled (smart mode)

SW1/5

On

Analog loopback test disabled (smart mode)

SW1/5

Off

Modem is in asynchronous mode (dumb mode)

SW1/5

On

Modem is in synchronous mode (dumb mode)

SW1/5

Off

Remote digital loopback test enabled (smart mode)

SW1/6

On

Remote digital loopback test disabled (smart mode)

SW1/6

Off

Modem is in answer mode (dumb mode)

SW1/6

On

Modem is in originate mode (dumb mode)

SW1/6

Off

COMMAND SET SELECTION (%F0 SET)

Setting

SW1/1

SW1/2

AT command set selected in asynchronous mode

On

On

V.25bis command set selected in asynchronous mode

On

Off

V.25bis command set selected in HDLC synchronous mode

Off

On

V.25bis command set selected in bisync synchronous mode

Off

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

TD

Red

Blinking

Modem is transmitting data

TD

Red

Off

Modem is not transmitting data

RD

Red

Blinking

Modem is receiving data

RD

Red

Off

Modem is not receiving data

OH

Red

On

Modem is off-hook

OH

Red

Off

Modem is on-hook

CD

Red

On

Carrier signal detected

CD

Red

Off

Carrier signal not detected

AA

Red

On

Auto-answer enabled

AA

Red

Off

Auto-answer disabled

AA

Red

Blinking

Modem is in test mode

TR

Red

On

DTR signal is high

TR

Red

Off

DTR signal is low

1 Status

2 Status

3 Status

Condition

Slow blink

Off

Off

Modem is connected at 300bps

Slow blink

Off

On

Modem is connected at 1200/75bps

Slow blink

On

Off

Modem is connected at 1200bps

Slow blink

On

On

Modem is connected at 2400bps

Off

On

On

Modem is connected at 4800bps

On

Off

Off

Modem is connected at 7200bps

On

Off

On

Modem is connected at 9600bps

On

On

Off

Modem is connected at 12Kbps

On

On

On

Modem is connected at 14.4Kbps

DIAGNOSTIC LED(S) (CON'T)

1 Status

2 Status

3 Status

Condition

Medium blink

On

Off

Modem is connected at 16.8Kbps

Medium blink

Off

On

Modem is connected at 19.2Kbps

Medium blink

On

On

Modem is connected at 21.6Kbps

Fast blink

Off

Off

Modem is connected at 24Kbps

Fast blink

On

Off

Modem is connected at 26.4Kbps

Fast blink

On

On

Modem is connected at 28.8Kbps

Fast blink

Fast blink

Off

Modem is connected at 31.2Kbps

Fast blink

Fast blink

On

Modem is connected at 33.6Kbps

Off

Off

Slow blink

Modem is connected at 2400bps in fax mode

Off

On

Slow blink

Modem is connected at 4800bps in fax mode

On

Off

Slow blink

Modem is connected at 7200bps in fax mode

On

On

Slow blink

Modem is connected at 9600bps in fax mode

On

Slow blink

Slow blink

Modem is connected at 14.4Kbps in fax mode

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

A, E, H, L, M, P, T, V, W, Z

&D, &F, &G, &L, &S, &T, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \J, \N, \Q, \T, \X

%C, %E, %L, %Q

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S25, S26, S29, S30, S38, S95

V.25bis

The V.25bis command set is unidentified.

Note: See MHI help file for complete information.

The %L command indicated above is in addition to the one listed in the referenced document.

UNIDENTIFIED COMMANDS

Command

Default

\K

5

%N

0

#R

Unidentified

#S

Unidentified

S33

3

S45

98

Proprietary AT Command Set

AUTO-RANGE TIME

Type:

Register

Format:

AT [cmds] S47=n [cmds]

Default:

8

Range:

1 - 255

Unit:

1 second

Description:

The function of this command is unidentified.

CHARACTER SET

Type:

Configuration

Format:

AT [cmds] #Un [cmds]

Description:

Selects the character set the modem will use in V.25bis mode.

Command

Function

í #U0

Modem will use the ASCII character set.

#U1

Modem will use the EBCDIC character set.

COMMAND SET TYPE

Type:

Immediate

Format:

AT [cmds] #Mn [cmds]

Description:

Selects the type of command set the modem will use.

Command

Function

#M0

AT command set selected in asynchronous mode.

#M1

V.25bis command set selected in asynchronous mode.

#M2

V.25bis command set selected in HDLC synchronous mode.

#M3

V.25bis command set selected in bisync synchronous mode.

DCD SIGNAL

Type:

Configuration

Format:

AT [cmds] &Cn [cmds]

Description:

Controls the behaviour of the DCD signal.

Command

Function

&C0

DCD forced high.

í &C1

DCD forced high after carrier signal is detected.

&C2

DCD forced high except at disconnect.

&C3

DCD forced high for voice mode.

DCD SIGNAL

Type:

Configuration

Format:

AT [cmds] %Tn [cmds]

Description:

Controls the behaviour of the DCD signal.

Command

Function

í %T0

DCD normal.

%T1

DCD forced high.

DIAL

Type:

Immediate

Format:

AT [cmds] D<#>;[cmds]

Description:

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

Command

Function

DF

Calling tone disabled for this call.

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.

DM

Make a LAPM reliable mode connection this call.

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.

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 disabled for this call.

D;

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

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.

FRONT PANEL TESTS

Type:

Configuration

Format:

AT [cmds] #Fn [cmds]

Description:

Selects whether SW1/3, SW1/5, and SW1/6 may be used to select loopback test modes.

Command

Function

í #F0

Front panel tests disabled.

#F1

Front panel tests enabled.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] &Kn [cmds]

Description:

Selects the type of flow control the modem will use.

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.

í &K9

Failsafe flow control enabled.

LED MODE

Type:

Configuration

Format:

AT [cmds] %Mn [cmds]

Description:

Sets what the front-panel LEDs indicate.

Command

Function

í %M0

LEDs indicate line speed.

%M1

LEDs indicate line quality, V.42 and MNP errors, and flow control.

LOCAL SERIAL PORT SPEED - AT COMMAND SET

Type:

Configuration

Format:

AT [cmds] Rn [cmds]

Description:

Sets the speed of the local serial port in AT command mode.

Note:

More options are supported by this command than are shown here.

Command

Function

R9

Set local serial port speed to 9600bps.

R14

Set local serial port speed to 14.4Kbps.

R19

Set local serial port speed to 19.2Kbps.

R28

Set local serial port speed to 28.8Kbps.

R38

Set local serial port speed to 38.4Kbps.

R57

Set local serial port speed to 57.6Kbps.

R115

Set local serial port speed to 115.2Kbps.

R230

Set local serial port speed to 230.4Kbps.

LOCAL SERIAL PORT SPEED - V.25bis COMMAND SET

Type:

Configuration

Format:

AT [cmds] #Qn [cmds]

Description:

Sets the speed of the local serial port in V.25bis command mode.

Note:

More options are supported by this command than are shown here.

Command

Function

#Q9

Set local serial port speed to 9600bps.

#Q14

Set local serial port speed to 14.4Kbps.

#Q19

Set local serial port speed to 19.2Kbps.

#Q28

Set local serial port speed to 28.8Kbps.

#Q38

Set local serial port speed to 38.4Kbps.

#Q57

Set local serial port speed to 57.6Kbps.

#Q115

Set local serial port speed to 115.2Kbps.

#Q230

Set local serial port speed to 230.4Kbps.

MNP10 LINK NEGOTIATION

Type:

Configuration

Format:

AT [cmds] %Hn [cmds]

Description:

Sets the speed at which MNP10 link negotiation will occur.

Command

Function

í %H0

Link will be negotiated at speed set by B command.

%H1

Link will be negotiated at 1200bps.

%H2

Link will be negotiated at 4800bps.

%H3

Link will be negotiated at 4800bps.

%H9

Link will be negotiated at speed set by B command and modem will not fall forward.

ON-LINE

Type:

Immediate

Format:

AT [cmds] On

Description:

Instructs the modem to return to the on-line state.

Note:

O3 through O7 are only valid for V.32 and V.32bis connections.

Command

Function

O0

Return to on-line state.

O1

Return to on-line state and initiate retrain sequence.

O2

Initiate retrain sequence.

O3

Re-negotiate speed to 4800bps and return to on-line state.

O4

Re-negotiate speed to 7200bps and return to on-line state.

O5

Re-negotiate speed to 9600bps and return to on-line state.

O6

Re-negotiate speed to 12Kbps and return to on-line state.

O7

Re-negotiate speed to 14.4Kbps and return to on-line state.

RESULT CODES

Type:

Configuration

Format:

AT [cmds] Qn [cmds]

Description:

Enables modem to send result codes to the DTE.

Command

Function

í Q0

Result codes enabled.

Q1

Result codes disabled.

Q2

RINGING result code disabled in answer mode.

SWITCHES SW1/1 AND SW1/2

Type:

Configuration

Format:

AT [cmds] %Fn [cmds]

Description:

Sets the function of front panel switches SW1/1 and SW1/2.

Command

Function

%F0

SW1/1 and SW1/2 control command set type.

í %F1

SW1/1 and SW1/2 control the DTR and DSR signals.

V.22bis - LEASED LINE

Type:

Configuration

Format:

AT [cmds] #In [cmds]

Description:

Selects which type of V.22bis modulation the modem will use over leased line connections.

Command

Function

í #I0

Modem will use leased line V.22bis over leased line connections.

#I1

Modem will use switched line V.22bis over leased line connections.

V.25bis DIRECT CALLING

Type:

Configuration

Format:

AT [cmds] #Dn [cmds]

Description:

Selects whether the modem will use V.25bis direct calling procedures.

Command

Function

í #D0

V.25bis direct calling procedures disabled.

#D1

V.25bis direct calling procedures enabled.

V.25bis IGNORE INCOMING CALL

Type:

Register

Format:

AT [cmds] S71=n [cmds]

Default:

0

Range:

0 - 30

Unit:

1 second

Description:

The function of this command is unidentified.

V.25bis FRAMING TYPE

Type:

Configuration

Format:

AT [cmds] #Nn [cmds]

Description:

Selects the framing type the modem will use in V.25bis synchronous mode.

Command

Function

í #N0

Modem will use NRZ framing.

#N1

Modem will use NRZI framing.

V.34 MODE

Type:

Configuration

Format:

AT [cmds] *Cn [cmds]

Description:

Selects whether the modem will use V.34 mode.

Command

Function

í *C0

V.34 mode enabled.

*C1

V.34 mode disabled.

VOICE - DEAD MAN TIMEOUT

Type:

Register

Format:

AT [cmds] S105=n [cmds]

Default:

30

Range:

0 - 255

Unit:

1 second

Description:

The function of this command is unidentified.

X.32 MODE

Type:

Configuration

Format:

AT [cmds] %Xn [cmds]

Description:

Selects whether the modem will use X.32 mode.

Note:

This command is not supported by all models.

Command

Function

í %X0

X.32 disabled.

%X1

X.32 enabled.

See NETCOMM LIMITED SOCKET ROCKET 336 (CM3660) for a full command summary.