Helmholz Modem 56k small User manual

Systeme Helmholz GmbH zHannberger Weg 2 zD-91091 Großenseebach
Phone: [phone] zFax: [phone] zE-Mail: [e-mail] zInternet: www.helmholz.com
56-k Modem „small“/
56-k Modem USB„small“
700-751-HSM21 / 700-751-HSM31
Operating Manual
Version: 2.0 / 03.07
Manual Order number : 900-751-HSM21/en

Helmholz Modem 56k small/Modem 56k USB small2
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and reproduction of this manual, or parts thereof. No part of this
manual may be reproduced, processed, copied, or transmitted in
any way whatsoever (photocopy, microfilm, or other method)
without the express written permission of Systeme Helmholz
GmbH, not even for use as training material, or using electronic
systems. All rights reserved in the case of a patent grant or regis-
tration of a utility model or design.
Copyright ©2009 by
Systeme Helmholz GmbH
Hannberger Weg 2, 91091 Großenseebach, Germany
Note:
We have checked the content of this manual for conformity with
the hardware and software described. Nevertheless, because de-
viations cannot be ruled out, we cannot accept any liability for
complete conformity. The information in this manual is regularly
updated. When using purchased products, please heed the latest
version of the manual, which can be viewed in the Internet at
www.helmholz.de, from where it can also be downloaded.
Our customers are important to us. We are always glad to receive
suggestions for improvement and ideas.
Step and SIMATIC are registered trademarks of SIEMENS

Contents
Helmholz Modem 56k small/Modem 56k USB small 3
1 SCOPE OF DELIVERY .................................................................................... 6
2 FUNCTION OVERVIEW ................................................................................. 6
3 NOTES REGARDING THE USE OF THE MANUAL......................................... 7
4 INITIAL OPERATION..................................................................................... 8
4.1 FRONT PANEL .................................................................................................. 8
4.2 TOP ................................................................................................................ 9
4.3 USER PROFILES................................................................................................. 9
4.4 INSTALLATION ............................................................................................... 10
4.5 INSTALLATION OF A USB DRIVER ..................................................................... 12
5 FUNCTIONS................................................................................................ 18
5.1 CONFIGURATION ........................................................................................... 18
5.2 SERIAL DATA TRANSMISSION ........................................................................... 20
5.3 ERROR CORRECTION ....................................................................................... 24
5.4 DATA COMPRESSION....................................................................................... 24
5.5 SELECTIVE CALL ANSWER ............................................................................... 26
5.6 SEND MESSAGES............................................................................................. 28
5.7 REMOTE CONFIGURATION (REMOTE CONTROL) ................................................ 30
5.8 ACCESS CONTROL .......................................................................................... 32
5.9 DATA TRANSMIT CONTROLLER (IDLE CONNECTION CONTROL) .......................... 34
5.10 PRIORITY CIRCUIT FOR MODEMS WITH PHONES CONNECTED IN SERIES ............... 35
6 CONFIGURATION SOFTWARE HSCOMM .................................................. 38

Contents
Helmholz Modem 56k small/Modem 56k USB small4
7 OPERATION WITH A PLC ........................................................................... 39
8 FIRMWARE UPDATE ................................................................................... 40
8.1 FLASHCOM.EXE.............................................................................................. 40
8.2 TERMINAL PROGRAM...................................................................................... 41
9 AT COMMAND SET .................................................................................... 42
9.1 OVERVIEW AT COMMANDS ............................................................................ 43
9.2 OVERVIEW FAX AND VOICE COMMANDS.......................................................... 67
9.3 AT MESSAGES................................................................................................ 67
10 S REGISTRY................................................................................................. 71
10.1 OVERVIEW SREGISTRY ................................................................................... 71
10.2 DESCRIPTION SREGISTRY................................................................................ 72
11 SENDING SMS AS FAX OR E-MAIL ............................................................ 81
11.1 SMS AS FAX .................................................................................................. 81
11.2 SMS AS E-MAIL .............................................................................................. 82
12 FAQ ............................................................................................................. 83
13 SAFETY INSTRUCTIONS ............................................................................. 85
13.1 GENERAL ...................................................................................................... 85
13.2 CLEANING..................................................................................................... 85
14 TECHNICAL DATA ...................................................................................... 86
14.1 MECHANICAL FEATURES ................................................................................. 86
14.2 POWER SUPPLY .............................................................................................. 86
14.3 PC INTERFACE ............................................................................................... 87

Contents
Helmholz Modem 56k small/Modem 56k USB small 5
14.4 POSSIBLE INTERFACE SPEEDS............................................................................ 88
14.5 SUPPORTED TRANSMISSION STANDARDS ........................................................... 89
14.6 TELEPHONE INTERFACE................................................................................... 89
14.7 ITU STANDARDS (CCITT) .............................................................................. 91
15 COUNTRY CODES ...................................................................................... 92

6Helmholz Modem 56k small/Modem 56k USB small
1Scope of Delivery
Before you begin with the initial operation, please check if all accessories are
included in the box.
¾HELMHOLZ Modem 56k small or
HELMHOLZ Modem 56k USB small
¾2 phone cords (TAE N at RJ12 and RJ12 at RJ12)
¾PC connection cable
9/9-pin (RS232 cable) or USB connection cable
¾User Guide
¾CD-ROM (optional)
Please contact your supplier if the content is not complete. Please also check the mo-
dem for shipping damage. Please also refer to your supplier if anything is damaged.
Please keep the packaging material for possible future shipping or storage.
2Function Overview
The HELMHOLZ Modem 56k small is a modem for the analogue telephone network. It
has a very compact design and very robust plastic housing. The modem supports the
following functions, which are described in detail in Chapter 5:
¾Usage in 87 countries
¾Establishing a data connection
¾Auto answer
¾Data flow control
¾Error correction
¾Data compression
¾Idle connection control
¾Firmware Update
¾Remote configuration
¾Security callback

Helmholz Modem 56k small/Modem 56k USB small 7
3Notes Regarding the Use of the Manual
¾This manual uses the symbol for especially important notes. Further notes
will be marked accordingly.
¾All factory settings are marked “default”.
Example (Chap. 5.7.3): Enter old password (default: QWERTY)
¾In Chapters 4 to 6 the description consists of two columns. Individual func-
tions are described on the left side. The according AT commands and the
modem responses can be found in the right column.
Function description AT command
Example (Chap. 5.2.7):
After the hardware reset, load the user profile 1 ATZ1
¾All AT commands start with the letters AT and end with a “Return” (Carriage
Return - CR). AT commands can be entered in capital or small letters. The
command is evaluated as soon as the modem received a response.
¾In the following, the used syntax is explained:
cATDT AT command (font: Courier, bold)
d<Expression> Input of a parameter (font: Courier, bold)
e<Expression> Input of an optional parameter
(Font: Courier, bold)
fExpression Response from the modem (font: italic)
Examples:
cATDT<n> Dialing of the phone number <n>
ATDT1234 Dialing of the phone number 1234
d+eAT+MS=<Modulation>, [Automode] Selection of the modulation
type
AT+MS=V92 Selection of the modulation
type V.92
AT+MS=V92,1 Selection of the modulation
typeV.92 with automatic
adjustment
fConnect The connection to the remote terminal is established
> Input prompt during the remote configuration.

8Helmholz Modem 56k small/Modem 56k USB small
4Initial Operation
4.1 Front panel
HELMHOLZ Modem 56k small HELMHOLZ Modem 56k USB small
The HELMHOLZ Modem 56k small INT has two LEDs to indicate the operating state:
The left LED (Power RX/TX) displays the condition of the operating voltage and a data
transmission. The right LED (OH/DCD) displays the status OH (off hook) and DCD (data car-
rier detect). The exact meaning of the display elements is described in the following table.
State Left LED Right LED
LED off No operating voltage applied. The modem is not “off hook” (it has not
yet “lifted the receiver”).
LED is green Operating voltage applied. The modem is hooked to the phone line
(it has “lifted the receiver”); a connec-
tions has not yet been established.
LED is or blinks or-
ange
Data is transmitted. The connection to the remote terminal
is established, the carrier was detected
If the DCD line at the modem is
permanently switched on, it cannot
be distinguished, whether a connec-
tion to the remote terminal is active
or not.
LED is red The modem is not “off hook” (it has not
“lifted the receiver” yet) and the DCD
line at the modem is permanently
switched on.
Systeme Helmholz Systeme Helmholz

Helmholz Modem 56k small/Modem 56k USB small 9
4.2 Top
Terminal Meaning
1 10..32V
DC Power supply 10V - 32V DC
2 GND Ground
3 Reset Reset input
INSYS MICROELECTRONICS GmbH
Internet: www.insys-tec.de
Sales: [e-mail]
Support: [e-mail]
GND
Reset
10...32 VDC
Power
supply
1
2
3
1
2
3
4 N/A
4.3 User Profiles
The modem offers a choice of profiles:
¾Default factory setting:
The default factory settings enable you to achieve a fixed defined
basic state of the modem. Starting with this “basis”, you can cus-
tomize the modem according to your requirements.
¾User profiles 0 and 1:
You can save configurations in the user profile, which may be re-
used for certain purposes.
A part of the S registry is saved in each profile. In the descrip-
tion, the affected registries are marked with an “*” in the S regis-
try.
Systeme Helmholz GmbH
Internet: www.helmholz.de
Sales: [email protected]
Support: suppo [email protected]

10 Helmholz Modem 56k small/Modem 56k USB small
4.4 Installation
Please observe our safety instructions.
1. Mounting on DIN rail
2. Connecting the power supply
a) Connecting the ground connection
b) Connecting the power supply 10…32V DC
INSYS MICROELECTRONICS GmbH
Internet: www.insys-tec.de
Sales: [e-mail]
Support: [e-mail]
GND
Reset
10...32 VDC
Power
supply
1
2
3
1
2
3
HELMHOLZ Modem 56k small
HELMHOLZ Modem 56k USB small
Note: The minimum value is 10V DC.
The maximum value is 32V DC.
3. Switch on power supply
4. Connection with a PC
Connect the 9-pin jack at the modem with the serial interface or a
USB interface of your computer.
5. Installation of a driver
For HELMHOLZ Modem 56k small:
The installation of a driver is not required when using a terminal
program or the HSComm. If you use another application, a driver
may be necessary. Please find our current drivers at
http://www.helmholz.de/ or install the standard modem 336 un-
der Windows.
For HELMHOLZ Modem 56k USB small:
If the HELMHOLZ USB drivers are not installed on your system
yet, you must perform the installation described in Chapter 4.5 .
6. Communication with the Modem
Now, start your communication program on the PC and set it to
the used COM interface. The modem will automatically adjust to
the baud rate of your PC.
7. Communication Control via a Terminal Program
Perform a short test using your terminal program.
Power LED lights
up green
Systeme Helmholz GmbH
Internet: www.helmholz.de
Sales: [email protected]
Support: [email protected]
Helmholz Modem 56k USB small
Systeme Helmholz GmbH
Internet: www.helmholz.de
Sales: [email protected]
Support: [e-mail]

Helmholz Modem 56k small/Modem 56k USB small 11
(TeraTermPro, ProcommPlus).
Open the terminal program and enter
the command.
When the message appears on your monitor, the device has been
successfully installed.
8. Check the communication using the configuration program
HSComm
Open installed HSComm The configuration program will auto-
matically search for the connected modem
9. Connection to the telephone network
Connect the modem with the phone outlet, using the supplied
phone cord.
10. Connection Test
Perform a manual connection, either to another modem or, in
this example, to Freenet.
Dial the following number 0101901929
For PBXs that require a code number to establish
a connection - usually “0”- a different command
must be used.
The modem will establish a connection
AT Enter
LED RXTX lights
up for a short
time
OK
ATDT 0101901929
ATX3DT 0,0101901929
LED OH lights up
Connect…

12 Helmholz Modem 56k small/Modem 56k USB small
4.5 Installation of a USB Driver
(Only for HELMHOLZ Modem 56k USB small)
The installation of the HELMHOLZ modem 56k USB small is performed in three steps. Dur-
ing the first two installation steps, a virtual COM port is installed, through which a modem
can be addressed via a terminal program or the configuration software HSComm.
During the third step, a modem driver can be installed, which can address the HELMHOLZ
Modem 56 k USB small at the just installed COM port.
The following describes the installation of the driver using the operating system Windows
XP. The installation of the driver using Windows 2000 is slightly different, but in general
very similar.
Note: The installation of the driver files creates a
virtual serial interface (COM port) on the com-
puter. The PC will treat this interface like a "real"
serial interface. All commands and functions in
this manual which relate to serial interfaces can
also be used for the version HELMHOLZ Modem
56k USB small.
4.5.1 COM port installation
When connecting the modem, the following dialog is displayed:
Click on "Next"...

Helmholz Modem 56k small/Modem 56k USB small 13
Select the item "Software from a list..." and click on "Next"...
Click the button "Browse" and enter the path to the location of the driver information.
E.g.: <CD Drive>\Driver\small_USB
The system will now search for the driver information.
Confirm any warning message from Windows XP by clicking the button "Continue installa-
tion".

14 Helmholz Modem 56k small/Modem 56k USB small
Click on "Finish" to complete the first part of the installation.
Note:
Immediately after the first driver has been installed, this installation route must be per-
formed the same way a second time to install the second part of the driver.

Helmholz Modem 56k small/Modem 56k USB small 15
After the second installation has been completed, the system has a new COM port available.
You can check the installation by opening the device manager in the start menu at
Control Panel ->System -> Hardware -> Device Manager
In this example, the modem was installed at COM
port 4. The modem can now only be addressed via
this COM port, using the configuration software
HSComm, for example.
For many applications, the installation up to this
point is sufficient.
If the modem is supposed to appear as a modem in
the control panel as well (e.g. to setup a RDT - re-
mote data transmission - connection), you must
install an additional modem driver to ensure the
functioning of the installed COM port. The fol-
lowing Chapter will show the details.

16 Helmholz Modem 56k small/Modem 56k USB small
4.5.2 Modem Driver Installation
The following describes the installation of a driver for an HELMHOLZ Modem. Open the
modem management in the control panel.
Start menu:
Control Panel ->Network and Internet Connections -> Phone and Modem Options
Start the installation using the button "Add".
After activating the check box "Select Modem", click on the button "Next".

Helmholz Modem 56k small/Modem 56k USB small 17
You can now either install a standard modem 56k or a special HELMHOLZ modem driver. If
necessary, you may need to enter the storage location manually using the button "Disk
Drive" to select the storage location.
E.g. at: <CD Drive>\DIN_Rail\Driver\Modem
Now enter the COM port for the modem connection. Use the virtual COM port that was in-
stalled in the previous chapter. In our example, this is COM 4.
Click on "Next" to complete the installation.

18 Helmholz Modem 56k small/Modem 56k USB small
The installation is completed.
5Functions
5.1 Configuration
5.1.1 Configuration Change
Loading the factory settings into the active profile will enable you
to easily recover an executable state.
Loading the user profile 0
Loading the user profile 1
Prior to the loading of the user profile, a reset is performed.
The settings of all profiles can be displayed in a chart.
AT&F
ATZ0 ATZ
ATZ1
AT&
V

Helmholz Modem 56k small/Modem 56k USB small 19
Example:
The active profile will show all settings currently used by the modem.
ACTIVE PROFILE:
B3 E1 L1 M1 Q0 T V1 W0 X4 *A1 *L0 *M0 *P0 *R1 %B0 %C3 %E2 %S0
\A1 \N3 \V0 &A0 &C1 &D2 &G0 &K3 &Q5 &R1 &S0 &X0 &Y0
S00:005 S02:043 S06:003 S07:050 S08:002 S09:006 S10:014 S11:085
S12:050 S13:003
S15:000 S17:042 S18:000 S24:000 S36:135 S40:104 S41:195 S46:138
S95:000
Our example currently shows the settings from user profile 0.
User profile 0:
STORED PROFILE 0:
B3 E1 L1 M1 Q0 T V1 W0 X4 *A1 *L0 *M0 *P0 *R1 %B0 %C3 %E2 %S0
\A1 \N3 \V0 &A0 &C1 &D2 &G0 &K3 &Q5 &R1 &S0 &X0
S00:005 S02:043 S06:003 S07:050 S08:002 S09:006 S10:014 S11:085
S12:050 S13:003
S15:000 S17:042 S18:000 S24:000 S36:135 S40:104 S41:195 S46:138
S95:000
User profile 1:
STORED PROFILE 1:
B3 E1 L1 M1 Q0 T V1 W0 X4 *A1 *L0 *M0 *P0 *R1 %B0 %C3 %E2 %S0
\A1 \N3 \V0 &A0 &C1 &D2 &G0 &K3 &Q5 &R1 &S0 &X0
S00:005 S02:043 S06:003 S07:050 S08:002 S09:006 S10:014 S11:085
S12:050 S13:003
S15:000 S17:042 S18:000 S24:000 S36:135 S40:104 S41:195 S46:138
S95:000
Note: The user profiles 0 and 1 can be modified without affecting the active
profile.
Storage location for the phone numbers:
TELEFONNUMMERN:
0= <Z0> 1= <Z1>
2= <Z2> 3= <Z3>

20 Helmholz Modem 56k small/Modem 56k USB small
5.1.2 Save Configuration
If the modem configuration was adjusted to certain user re-
quirements, these settings can be saved in the user profiles 0
or 1.
Configuration changes will be lost after a RESET or restart if they
were not saved before.
5.2 Serial Data Transmission
5.2.1 Automatic Baud Rate Detection
For each received AT command, the modem automatically
performs an adjustment to the set baud rate, the number of
data and stop bits, and the parity.
The adjustment to the transmission speed on the phone line
is performed automatically, unless the settings say otherwise.
During the establishing of a connection both modems at-
tempt to achieve the joint fastest speed on the phone line.
For an existing connection, the modem must first switch to
command mode.
Use the following command to receive the transmission set-
tings:
E.g.: +MS: V92,1,300,48000,300,56000
This means that a connection between 300 and 56000 bps
was established, preferably according to V.92, depending on
the line quality and the abilities of the remote terminal.
Query the quality of an existing connection
Query the level of an existing connection
Display the connection statistics after the connection is ter-
minated
AT+MS?
AT%Q
AT%L
AT&W0 AT&W
AT&W1
+++
AT&V1