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.