Davicom DM336P User manual

Preliminary Order No. DM336P-002-01
Version : DM336P-AT-P04
DM336P
DM336PDM336P
DM336P
AT Command Set & Operation Manual
V.34 Integrated Data/Fax/Voice/Speakerphone
Operation Manual & AT Command Set
DM336P DATA/FAX/VOICE MODEM
Table of Contents
Operation Manual
Installation
Specification
Troubleshooting

AT Command Set
Preliminary 2Order No. DM336P-002-01
Version : DM336P-AT-P04
AT Command Set
Part I : Data command
a. General Command
b. V.42bis / MNP 5 Command
c. Result Code
Part II : Fax Command
a. Fax Class 1 Command
b. Fax Class 2 Command
Part III :Voice Command
a. Voice Command
b. Shielded Command
Part V : S Registers
Operation manual
DM336P provides ISA plug & play function. This
function includes two operation modes. One is Win95
mode. The other one is Jumpless mode. User must
uses DM336P installation program to setup the COM
port when the card is set in Jumpless mode.
Installation
a. Jumpless mode
1. Open the setting jumper.
2. Put modem card in computer’s slot.
3. Execute Comset.exe
4. Move Bar to “Configuration” and press “Enter”
to choose the configuration function
5. Move Bar to “Modify COM port” and press “
Enter” to entry COM port selection mode.
6. Select the COM port and press “ Enter”.
7. Move Bar to “Modify IRQ” and press “Enter” to
enter IRQ selection mode.
8. Select the IRQ and press ”Enter”.
9. Move Bar to “Save Configuration” and press
“Enter” to save your setting in EEPROM.
10. Quit the installation program.
b. Win95 mode
1. Short the setting jumper.

AT Command Set
Preliminary 3Order No. DM336P-002-01
Version : DM336P-AT-P04
2. Put modem card in computer’s slot.
3. Use the “Control Panel” to setup you modem
system.
Specification
!CCITT/ITU/Bell Standard:
V.34+, V.34, V.32bis, V32, V22, V21,
Bell 103, V.17, V.29, V.21ter
!MNP 5, 4, 3, 2
!Host Interface : ISA bus PnP
!Fax Group : Group III
!Fax Command : EIA/TIA-578 Class 2
!Voice Command : Davicom Command
!Escape Command : TIES
!Transmit Level : -12dbm +/- 1dbm
!Sensitivity : -35dbm
!Power : 620mw (Max)
!Temperature : 0 to 55 Degree C
!Dial Tone detection : 340Hz - 550Hz
Troubleshooting
Your modem is designed to provide reliable and
trouble-free operation. However, please follow
the suggest to solve your problems.
Modem does not respond to commands.
1. Using Comset.exe program to set up
Com Port again.
2. Run “Diagnostic” to check you modem
3. Use “AT&F&W&W1” as your initialization
command.
Modem dials but not connect.
1. Make sure the IRQ setting is identical on
both the modem AND the software.
Make sure the Phone line is working properly. A
noisy line will prevent proper modem operation.

AT Command Set
Preliminary 4Order No. DM336P-002-01
Version : DM336P-AT-P04

AT Command Set
Preliminary 5Order No. DM336P-002-01
Version : DM336P-AT-P04
PART I : Data COMMAND SET
General Command
A/ Repeat the last executed AT command
Do not precede A/ with AT or follow with ENTER.
AT Attention Characters.
'AT' character pairs always at the beginning of each command line, except 'A/', which is to repeat the
last executed AT command.
Note: The following commands always have to precede with 'AT' attention character pair, if it is the first
command in the command
line.
AManually answer incoming call.
DDial (Originate a Call).
The following modifiers can be used in the dial string:
0-9,#,* Dialing digits. Touch Tone dial
characters.
P Pulse dialing.
T Touch Tone dialing.
W Wait for second dial tone.
, Pause (programmable by S8).
^ Enable 1300 Hz calling tone.
! Flash (delay 500 ms).
; Return to command mode.
DS=n Dial stored number.
Dials one of three telephone numbers ( n =
0,1 or 2 ) which is stored in the modem's
nonvolatile memory via AT&Zn=x command.
En Command Echo.
E0 Disables command echo.
E1* Enables Command echo.
+++ Default Escape Character.
To switch from data mode to command mode, you can pause one second and type '+++'. Do not follow
with carriage return. The default ASCII character '+' is decimal 43. You can change register S2 to any
value from 0 to 255. Values greater than 127 disable the escape feature and prevent you from returning
to the Command Mode. Please refer to S2 and S12.
Hn Hook control.
H0* Modem is on-hook (disconnect from line).
H1 Modem is off-hook (connect to line).
In Identification.
I0* Display product-identification code.
I1 Factory set.
I2 Internal memory test.
I3 Firmware version 1.
I4 Firmware version 2.

AT Command Set
Preliminary 6Order No. DM336P-002-01
Version : DM336P-AT-P04
Ln Volume Control.
L0 Speaker volume off.
L1 Low speaker volume.
L2* Medium speaker volume.
L3 Loud speaker volume.
Mn Speaker Control.
M0 Speaker off.
M1* Speaker on until carrier detected.
M2 Speaker always on.
M3 Speaker on until carrier detected and off
while dialing.
Nn Auto mode Selection.
N0 Disable auto mode. Modem connect speed is
fixed according to AT*Nn setting.
N1* Enable adaptive connect speed (always
connect at the highest compatible speed).
On Return to Data Mode Selection.
O0* Return to Data Mode.
O1 Return to Data Mode and initiate a retrain.
Qn Modem Response Selection.
Q0* Modem sends responses.
Q1 Modem does not sends responses.
Sr? Reads Register r Value.
r is 0 to 97.
Sr=n Set Register r to Value n.
r is 0 to 97, n is 0 to 255.
Un V.34 Control.
U0 Disable V.34 when AT*N1 - AT*N6.
U1 Enable V.34.
U2 Enable V.34 aggressive connection
Vn Responses Selection.
V0 Numeric responses.
V1* Verbose (text) responses.
Xn Response Set Selection (See table 1).
X0 Report basic call progress result codes.
X1 Report basic call progress result codes and
connections speeds, disable dial tone and
busy tone detection.
X2 Report basic call progress result codes and
connections speeds, disable busy tone detection only.
X3 Report basic call progress result codes and
connections speeds, disable dial tone detection only.
X4* Report all call progress result codes and
connection rate.
Yn Long Space Disconnect Selection.

AT Command Set
Preliminary 7Order No. DM336P-002-01
Version : DM336P-AT-P04
Y0* Disables long space disconnect. Modem
does not send or respond to long space
disconnect.
Y1 Enables long space disconnect. Modem
sends break signal for 4 seconds before
disconnect or will disconnect after receiving
1.6 seconds of break from remote modem.
Zn Reset and Profile Retrieve Selection
Z0* Reset modem and retrieve active
configuration profile from stored
configuration profile 0.
Z1 Reset modem and retrieve active
configuration profile from stored
configuration profile 1.
&Cn Carrier Output Selection.
&C0 Keep Data Carrier Detect (DCD) signal
always ON.
&C1* Set Data Carrier Detect (DCD) signal
according to remote modem data carrier
signal.
&Dn Data Terminal Ready (DTR) Signal Handling.
&D0 Modem ignores the Data Terminal Ready
signal from host.
&D1 Modem returns to Command Mode and
asynchronous operation following an
ON-to-OFF Data Terminal Ready transition.
&D2* Modem hangs up, returns to the Command
Mode, and prepares for asynchronous
operation following an ON-to-OFF Data
Terminal Ready transition.
&D3 Modem resets following an ON-to-OFF Data
Terminal Ready transition and retrieves
modem default configuration (Same as ATZ).
&F Load Modem Factory Default Configuration
Restores the modem to the default operating characteristics.
&Gn Guard Tone Selection.
&G0* Disable guard tone.
&G1 Enable 550 Hz guard tone.
&G2 Select 1800 Hz guard tone.
&Ln Dial-up or Leased-Line Operation Selection.
&L0* Modem is setup for dialup operation.
&L1 Modem is setup for 2-wire leased-line
operation.
&L2 Modem is setup for 4-wire leased-line
operation.
&Pn Make/Break Ratio.
&P0* US setting for off-hook (make) to on-hook
(break) ratio.
&P1 UK and Hong Kong setting for off-hook to

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Preliminary 8Order No. DM336P-002-01
Version : DM336P-AT-P04
on-hook ratio.
&Rn Clear To Send (CTS) Signal Selection.
&R0 Modem turns on the Clear To Send signal
when it detects the Request To Send (RTS)
signal from host.
&R1 Modem ignores the Request To Send signal
and turns on its Clear To Send signal when
ready to receive data.
&R2* Clear To Send force on.
&Sn Data Set Ready (DSR) Signal Selection.
&S0* Data Set Ready is forced on.
&S1 Data Set Ready to operate according to RS-
232 specification.
&Tn Test Selection.
&T0* Terminates test in progress.
&T1 Performs Local Analog Loopback Test.
&V Configuration Profile Display Selection.
&Wn Active Configuration Profile Store Selection.
&W0* Stores active configuration profile in
configuration profile 0.
&W1 Stores active configuration profile in
configuration profile 1.
&Yn Selection of the Active Configuration After
Power-On or Reset.
&Y0* Retrieves configuration profile 0 as the
active configuration profile when the Modem
is turned on or is reset.
&Y1* Retrieves configuration profile 1 as the
active configuration profile when the Modem
is turned on or is reset.
&Zn=x Store Telephone Numbers in Nonvolatile
Memory. Stores three telephone numbers, 31 characters each, in the non-volatile memory.
Uses ATDS=n to dial or to use AT&M2 for
synchronous data mode.
*Gn Adaptive Handshake Selection.
*G0 Disables adaptive protocol handshake.
*G1* Enables adaptive protocol handshake.
*Nn Connect Speed Selection.
*N0 Selects connect speed 1200bps.
*N1 Selects connect speed 2400bps.
*N2 Selects connect speed 4800bps.
*N3 selects connect speed 7200bps.
*N4 Selects connect speed 9600bps.
*N5 Selects connect speed 12000bps.
*N6 Selects connect speed 14400bps.
*N7 Selects connect speed 16800bps.

AT Command Set
Preliminary 9Order No. DM336P-002-01
Version : DM336P-AT-P04
*N8 Selects connect speed 19200bps.
*N9 Selects connect speed 21600bps.
*N10 Selects connect speed 24000bps.
*N11 Selects connect speed 26400bps.
*N12 Selects connect speed 28800bps.
*N13 Selects connect speed 31200bps .
*N14* Selects connect speed 33600bps .
*N15 Selects connect speed 1200/75bps.
*N16 Selects connect speed 300bps (V.21).
*N17 Selects connect speed 300bps (Bell 103).
*Pn User Abort Selection.
*P0* Enables user abort feature.
*P1 Disables user abort feature.
*Qn Auto Retrain Selection.
*Q0 Disables auto retrain.
*Q1* Enables auto retrain.
*Tn Trellis Coding Selection.
*T0 Disables Trellis coding.
*T1* Enables Trellis coding.
*Xn Transmission Level Selection.
*X0* Selects output level -11dBm.
*X1 Selects output level -12dBm.
*X2 Selects output level -13dBm.
*X3 Selects output level -14dBm.
*X4 Selects output level -15dBm.
*X5 Selects output level -16dBm.
*X6 Selects output level -17dBm.
*X7 Selects output level -18dBm.
*X8 Selects output level -19dBm.
*X9 Selects output level -20dBm.
*X10 Selects output level -21dBm.
*X11 Selects output level -22dBm.
*X12 Selects output level -23dBm.
*X13 Selects output level -24dBm.
*X14 Selects output level -25dBm.
*X15 Selects output level -26dBm.
V.42bis / MNP Command Set
%An Set Auto-Reliable Fall Back Character
Set auto-reliable fall back character to n (n
= 0 to 127).
\An MNP Block Size Selection.
\A0 Selected 64-character maximum block size.
\A1 Selected 128-character maximum block size.
\A2 Selected 192-character maximum block size.
\A3* Selected 256-character maximum block size.
\Bn Set Line Break.
Send a n/10 seconds line break to the
modem (n = 0 to 9). Default = 3. Break

AT Command Set
Preliminary 10 Order No. DM336P-002-01
Version : DM336P-AT-P04
length always 300 msec for MNP mode.
%Cn Data Compression.
%C0 Disables data compression.
%C1* Enables data compression.
\En Normal Mode Data Echo Selection.
\E0* Disables data echo during a normal link.
\E1 Enables data echo during a normal link.
\Jn DTE Baud Rate Adjustment Selection.
\J0* Disables DTE rate adjustment. DTE
rate is constant regardless of data link
speed.
\J1 Enables DTE rate adjustment. DTE
matches data link speed
\Kn Break Control Selection.
\K0 Enters the Command Mode, but does not
send a Break to remote modem. (To send a
Break after use the \B command).
\K1 Empty data buffers and immediately sends a
Break to remote.
\K2 Same as AT\K0.
\K3 Immediately send a Break.
\K4 Same as AT\K0.
\K5* Send a Break in sequence with any data
received from host.
\Nn Data Link Selection.
\N0 Selects Normal data link.
\N1 Selects Direct data link.
\N2 Selects MNP Reliable link only.
\N3 Selects MNP Auto-reliable link.
\N4 Selects V.42 reliable link with phase
detection.
\N5* Selects V.42 auto-reliable link with phase
detection.
\N6 Selects V.42 reliable link without phase
detection.
\N7 Selects V.42 auto-reliable link without phase
detection.
\Qn Flow Control Selection.
\Q0 Disables flow control.
\Q1 Selects XON\XOFF in-band flow control.
\Q2 Selects CTS hardware flow control.
\Q3* Selects RTS\CTS hardware flow control.
\Tn Set Inactive Timer.
Set inactivity timer to n minutes (n = 0 to 90
). Default = 0.
\Vn V42/MNP Extended Response Selection.