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MEMORYMODEM 336 (AM3440)

NETCOMM LIMITED

MEMORYMODEM 336 (AM3440)

Card Type

Modem (asynchronous)

Chipset

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Voice

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 & II

Data Bus

Serial

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

Blinking

Auto-answer enabled and modem will store incoming messages

AA

Red

Off

Auto-answer disabled

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

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

DIAGNOSTIC LED(S) (CON'T)

1 Status

2 Status

3 Status

Condition

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

Alternating

Alternating

Alternating

Modem has stored a message in memory

MISCELLANEOUS TECHNICAL NOTES

A back-panel diagram is not available.

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

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

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

Extended AT Commands

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

%C, %E, %Q

Special AT Commands

:E, *H, -K, )M, -Q

S-Registers

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

Note: See MHI help file for complete information.

UNIDENTIFIED COMMANDS

Command

Default

\K

5

%N

0

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 LENGTH

Type:

Configuration

Format:

AT [cmds] &Bn [cmds]

Description:

Selects the character length the modem will use.

Command

Function

&B0

8 bit character length selected.

&B1

9 bit character length selected.

&B2

10 bit character length selected.

&B3

11 bit character length selected.

í &B4

Modem auto-detects 10 or 11 bit character length.

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.

DIAL (CON’T)

Command

Function

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.

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

Type:

Configuration

Format:

AT [cmds] Rn [cmds]

Description:

Sets the speed of the local serial port.

Note:

There may be more options supported by this command than are listed below.

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.

MESSAGE CLEAR - FAST

Type:

Immediate

Format:

AT [cmds] #MCLN [cmds]

Description:

Erases all the used portions of the modem's memory.

MESSAGE CLEAR - MESSAGES

Type:

Immediate

Format:

AT [cmds] #MCLR [cmds]

Description:

Erases the message area of the modem's memory.

MESSAGE CLEAR - THOROUGH

Type:

Immediate

Format:

AT [cmds] #MINI [cmds]

Description:

Erases the modem's memory completely, including unused portions.

MESSAGE DISPLAY

Type:

Immediate

Format:

AT [cmds] #MCD [cmds]

Description:

Displays the messages that are stored in the modem's memory.

MESSAGE DOWNLOAD

Type:

Immediate

Format:

AT [cmds] #MDV [cmds]

Description:

Downloads the messages stored in the modem's memory to the DTE.

MESSAGE ERASE

Type:

Immediate

Format:

AT [cmds] #MEVn [cmds]

Description:

Erases the message specified from the modem's memory.

MESSAGE NUMBER - FAX

Type:

Immediate

Format:

AT [cmds] #MSF [cmds]

Description:

Displays the number of fax messages stored in the modem's memory.

MESSAGE NUMBER - VOICE

Type:

Immediate

Format:

AT [cmds] #MSV [cmds]

Description:

Displays the number of voice messages stored in the modem's memory.

MESSAGE PLAY

Type:

Immediate

Format:

AT [cmds] #MPVn [cmds]

Description:

Plays the voice message indicated.

MESSAGE STORAGE

Type:

Configuration

Format:

AT [cmds] #MEM=n [cmds]

Description:

Selects whether the modem will store incoming fax and voice messages in its memory.

Command

Function

#MEM=0

Memory storage disabled.

í #MEM=1

Memory storage enabled.

MESSAGE - WELCOME MESSAGE RECORD

Type:

Immediate

Format:

AT [cmds] #MRW [cmds]

Description:

Records the voice welcome message.

MESSAGE - WELCOME MESSAGE RECORD FROM DATA MODE

Type:

Immediate

Format:

AT [cmds] #MWEL [cmds]

Description:

Enters voice mode, sets the serial port speed to 38.4Kbps, sets the DSP source to the handset, and records the voice welcome message.

MODE SELECTION

Type:

Immediate

Format:

AT [cmds] #CLS=n [cmds]

Description:

Selects which mode the modem will operate in.

Command

Function

#CLS=0

Modem will operate in data mode.

#CLS=1

Modem will operate in fax class 1 mode.

#CLS=2

Modem will operate in fax class 2 mode.

#CLS=8

Modem will operate in voice mode.

MNP10

Type:

Configuration

Format:

AT [cmds] #Kn [cmds]

Description:

Selects whether the modem will attempt to make an MNP10 connection.

Command

Function

#K0

MNP10 disabled.

í #K1

MNP10 enabled.

#K2

MNP10 enabled on cellular connections only.

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.

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.

VOICE DEVICE

Type:

Configuration

Format:

AT [cmds] #VLS=n [cmds]

Description:

Selects the I/O device for the DSP chip.

Command

Function

#VLS=1

Telephone handset used for voice I/O.

#VLS=2

Internal speaker only used for voice I/O.

VOICE - LOCAL SERIAL PORT SPEED

Type:

Configuration

Format:

AT [cmds] #BDR=n [cmds]

Default:

0

Range:

0 - 48

Unit:

2400bps

Description:

Sets the speed of the local serial port when in voice mode. A value of 0 indicates that the modem should auto-detect the correct serial port speed.

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