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INSYS Modem 56k
small EU 2.1
Manual
Sep-09
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Copyright © September 09 INSYS MICROELECTRONICS GmbH
Any duplication of this manual is prohibited. All rights on this documentation and the
devices are with INSYS MICROELECTRONICS GmbH Regensburg.
Trademarks
The use of a trademark not shown below is not an indication that it is freely available for
use.
MNP is a registered trademark of Microcom Inc.
IBM PC, AT, XT are registered trademarks of International Business Machine Corporation.
INSYS ® is a registered trademark of INSYS MICROELECTRONICS GmbH.
Windows™ is a registered trademark of Microsoft Corporation.
Linux is a registered trademark of Linus Torvalds.
Publisher:
INSYS MICROELECTRONICS GmbH
Waffnergasse 8
D-93047 Regensburg, Germany
Phone: +49 (0)941/56 00 61
Fax: +49 (0)941/56 34 71
E-mail: insys@insys-tec.de
Internet: http://www.insys-tec.de
Date: Sep-09
Item: 31-22-03.101
Version: 1.0
Language: EN
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Contents
1 Safety .................................................................................................................. 6
2 Scope of Delivery ................................................................................................ 8
3 Usage According to the Regulations .................................................................. 9
4 Technical Data................................................................................................... 10
4.1 Physical Features ..............................................................................................................10
4.2 Technological Features .....................................................................................................10
4.3 Certifications.....................................................................................................................11
5 Display and Control Elements........................................................................... 12
5.1 Meaning of the Displays...................................................................................................12
6 Connections....................................................................................................... 13
6.1 Front Panel Connections...................................................................................................13
6.2 Terminal Connections on the Top ....................................................................................13
6.3 Pin Assignment of the Serial Interface.............................................................................14
6.4 RJ12 Phone connection.....................................................................................................15
7 Function Overview............................................................................................ 16
8 Meaning of the Symbols and the Formatting in this Manual.......................... 17
9 Installation ........................................................................................................ 18
10 Initial Operation................................................................................................ 22
11 Operating Principle ........................................................................................... 24
11.1 Operation with the Terminal Program.............................................................................24
11.2 Operation with HSComm .................................................................................................25
11.3 User Interface of the Software HSComm Modem ...........................................................26
12 Functions ........................................................................................................... 28
12.1 Establishing or Accepting a Data Connection..................................................................28
12.2 Automatic Baud Rate Detection.......................................................................................31
12.2.1 Serial Connection............................................................................................................ 31
12.2.2 Phone Connection........................................................................................................... 32
12.3 Data Buffer for Serial Data Transmission.........................................................................33
12.4 Bit Direct Mode .................................................................................................................33
12.5 Data Flow Control (Handshake) .......................................................................................34
12.5.1 Hardware data flow control (RTS/CTS)...................................................................... 34
12.5.2 Software data flow control (XON/XOFF) .................................................................. 35
12.6 Error correction .................................................................................................................36
12.7 Data Compression.............................................................................................................37
12.8 Automatic Dial-Up Delay..................................................................................................38
12.9 User Profiles ......................................................................................................................39
12.9.1 Changing the Configuration ........................................................................................ 39
12.9.2 Saving the Configuration.............................................................................................. 39
12.10 Reset..................................................................................................................................40
4 Sep-09
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13 Maintenance ..................................................................................................... 41
14 Waste Disposal.................................................................................................. 43
14.1 Repurchasing of Legacy Systems......................................................................................43
15 AT Command Reference ................................................................................... 44
15.1 AT Command Overview....................................................................................................45
15.2 AT Messages......................................................................................................................61
16 S Registry........................................................................................................... 64
16.1 Overview S Registry..........................................................................................................65
16.2 Description S Registry.......................................................................................................66
17 Tables and Diagrams......................................................................................... 74
17.1 List of Tables .....................................................................................................................74
17.2 List of Diagrams ................................................................................................................74
18 Index.................................................................................................................. 75
Contents
Sep-09 5
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Safety INSYS Modem 56k small EU 2.1
1 Safety
Moisture und liquids from the environment may seep
into the interior of the device.
Risk of death through shock hazard when touching it!
The INSYS Modem 56k small EU 2.1 may not be used in
wet or damp environments, or in or very close to water.
Install the device at a dry location, protected from water
spray. Switch the power supply off before you do any
work on a device which may have been in contact with
moisture.
Overvoltage.
Fire hazard!
The modem must be secured with a suitable fuse against
overvoltage.
Danger!
Danger!
Danger!
Overcurrent.
Fire hazard!
The modem must be secured with a suitable fuse against
currents exceeding 1.6 A.
Warning!
Short circuits and damage due to improper repairs and
opening of maintenance areas.
Fire, breakdown and risk of injury!
Only trained personnel are allowed to open the INSYS
Modem 56k small EU 2.1 and to repair it.
Note
Damage of the device due to overvoltage!
Voltage peaks from the power supply may damage the
device.
6
Install suitable overvoltage protection.
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INSYS Modem 56k small EU 2.1 Safety
Damage due to chemicals!
Ketones and chlorinated hydrocarbons dissolve the plastic housing and damage the surface of the device.
Never let the device come into contact with ketones (e.g.
acetone) or chlorinated hydrocarbons, such as dichloromethane.
Note
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Scope of Delivery INSYS Modem 56k small EU 2.1
2 Scope of Delivery
The scope of delivery for the INSYS Modem 56k small EU 2.1 includes all accessories listed
below. Please check if all accessories are included in the box. If a part is missing or damaged, please contact your distributor.
INSYS Modem 56k small EU 2.1
Cable:
1 phone cord (TAE-N at RJ12)
1 serial cable with 9-pin sub-D plug for the connection to the PC
1 Manual
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INSYS Modem 56k small EU 2.1 Usage According to the Regulations
3 Usage According to the Regulations
The INSYS Modem 56k small EU 2.1 may only be used for the purposes specified in the
function overview. In addition, it may be used for the following purposes:
Usage and mounting in an industrial cabinet.
Switching and data transmission functions in machines according to the
machine directive 2006/42/EC.
Usage as data transmission device for a PLC.
The INSYS Modem 56k small EU 2.1 must not be used for the following purposes and
used or operated under the following conditions:
Controlling or switching of machines and systems which do not comply
with the directive 2006/42/EC.
Usage, controlling, switching and data transmission in machines or sys-
tems which are operated in explosive atmospheres.
Controlling, switching and data transmission of machines, which may in-
volve risks to life and limb due to their functions or when a breakdown occurs.
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Technical Data INSYS Modem 56k small EU 2.1
4 Technical Data
4.1 Physical Features
All specified data was measured with a nominal input voltage, at full load, and an ambient temperature of 25 °C. The threshold value tolerances are subject to typical fluctuations.
Physical Feature Value
Operating voltage Minimum 10 V DC
Power input sleep 2.4 W
Power input connection 2.6 W
Weight 100 g
Dimensions (Width x Depth x Height) 23 mm x 110 mm x 75 mm
Overvoltage.
Fire hazard!
The modem must be secured with a suitable fuse against
overvoltage.
Maximum 32 V DC
Danger!
Temperature range 0 °C – 55 °C
Maximum allowed humidity 95 % non-condensing
Table 1: Physical Features
4.2 Technological Features
Technological Feature Description
Protection Class Housing IP40
Terminals IP20
Supported data compression standards MNP 2/3, MNP 5, V.42 bis; V.44, MNP 10,
MNP 10 EC
Fax-Classes Fax Class 1
Modulation types V.32bis, V.32, V.23, V.22, V22 bis, V21,
V.34+, V.34, V.42, (bei 56k-Version zusätzlich V.90 und V.92)Bell Norm 103/212
Error correction standards MNP4, LAPM
Table 1: Technological Features
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INSYS Modem 56k small EU 2.1 Technical Data
4.3 Certifications
The INSYS Modem 56k small EU 2.1 has been developed according to the following
guidelines and standards:
R&TTE 1999/5/EC
DIN EN 55022 Class B
DIN EN 61000-6-2
DIN EN 60950-1
CTR 21
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Display and Control Elements INSYS Modem 56k small EU 2.1
5 Display and Control Elements
Figure 1: LEDs on the front panel
Position Description
1 Power/RX/TX LED
2 OH/DCD-LED (Off Hook / Data Carrier Detect)
Table 1: Description of the LEDs on the front panel of the device
5.1 Meaning of the Displays
Description Display Meaning
Power/RX/TX LED LED on (green) Supply voltage available
LED off No supply voltage
LED blinking (orange) Data is transmitted
OH/DCD LED LED on (green) Modem is hooked to the
phone line and online.
LED off Modem is not hooked to
the phone line and offline.
LED on (red) Modem is offline, DCD line
is permanently active.
Table 2: Meaning of the LED displays
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INSYS Modem 56k small EU 2.1 Connections
6 Connections
6.1 Front Panel Connections
Figure 2: Connections on the front panel of the device
Position Description
1 Serial Interface (RS232 jack)
2 Phone connection (RJ12 line jack)
Table 1: Description of the connections on the front panel of the device
6.2 Terminal Connections on the Top
Figure 2: Connections on the top of the device
Terminal Description Description
1
2 GND Ground
3 Reset Reset input
Table 3: Description of the connections on the top of the device
10 ... 32 V DC Power supply 10 V – 60 V DC
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Connections INSYS Modem 56k small EU 2.1
6.3 Pin Assignment of the Serial Interface
Figure 3: 9-pin sub-D jack at the device
Pin Signal Description
1 DCD Data Carrier Detect
2 RXD Receive Data
3
4 DTR Data Terminal Ready
5 GND Ground
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear To Send
9 RI Ring Indication
Table 4: Description of the pin allocation of the sub-D jack
TXD Transmit Data
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INSYS Modem 56k small EU 2.1 Connections
6.4 RJ12 Phone connection
E W
b2 b1
a2 a1
Figure 4: RJ12 jack connected to TAE jack
Pin Signal Description
1 E Not connected (GND)
2 a2 To connect a phone in series.
3
4 b1 Incoming phone line (e.g. PSTN or PBX)
5 b2 To connect a phone in series.
6 W Not connected (line to external bell)
Table 5: Layout description of the RJ12 and TAE plugs
a1 Incoming phone line (e.g. PSTN or PBX)
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Function Overview INSYS Modem 56k small EU 2.1
7 Function Overview
The INSYS Modem 56k small EU 2.1 offers the following functions:
Automatic baud rate detection
The INSYS Modem 56k small EU 2.1 will automatically adjust the data
transmission rate, if a connection is made via its serial interface. The serial
transmission rate can be preset for applications for the serial communication to be able to initialize with a defined baud rate.
Data buffer for serial data transmission
The INSYS Modem 56k small EU 2.1 has a fast send and receive buffer
(cache) to adjust the modem to the operating speed of the application.
Bit direct mode
The INSYS Modem 56k small EU 2.1 can forward incoming data without
having any effect on the transmission format of the data.
Hardware and software data flow control
The INSYS Modem 56k small EU 2.1 can transmit to the application via the
control lines of the serial interface to interrupt the dataflow, if the buffers
of the INSYS Modem 56k small EU 2.1 exceed a certain level. An application
can also prompt the INSYS Modem 56k small EU 2.1 via a control line to interrupt the data flow. As an alternative, the INSYS Modem 56k small EU
2.1 can control the data flow via XOFF/XON characters in the data stream.
Error correction
The INSYS Modem 56k small EU 2.1 has the following error correction pro-
tocols: V.42,V.42bis, V.44,MNP2, MNP3, MNP4, and MNP10
Storing the settings in the user profiles
The INSYS Modem 56k small EU 2.1 can store the user settings in two dif-
ferent "profiles". This means that two different configurations can be
stored for special purposes and loaded as needed.
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INSYS Modem 56k small EU 2.1 Meaning of the Symbols and the Formatting in this
8 Meaning of the Symbols and the Formatting in this
Manual
This section describes the definition, formatting and symbols used in this manual. The
various symbols are meant to help you read and find the information relevant to you.
The following text is structured like a typical operating instruction of this manual.
Bold print: This will tell you what the following steps will result in
After that, there will be a detailed explanation why you could perform the
following steps to be able to reach the objective indicated first. You can decide whether the section is relevant for you or not.
An arrow will indicate prerequisites which must be fulfilled to be able to
process the subsequent steps in a meaningful way. You will also learn
which software or which equipment you will need.
1. One individual action step: This tells you what you need to do at this point.
The steps are numbered for better orientation.
A result which you will receive after performing a step will be marked with
a check mark. At this point, you can check if the previous steps were successful.
Additional information which you should consider are marked with a cir-
cled "i". At this point, we will indicate possible error sources and tell you
how to avoid them.
Alternative results and steps are marked with an arrow. This will tell you how
to reach the same results performing different steps, or what you could do if
you didn't reach the expected results at this point.
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Installation INSYS Modem 56k small EU 2.1
9 Installation
This chapter describes how to mount the INSYS Modem 56k small EU 2.1 to a DIN
rail, connect it to the power supply and disassemble it again.
Exposed electrical components!
Risk of death through electric shock hazard!
Prior to the installation, switch the power of the cabinet
off and secure it against being switched on again.
Moisture and liquids from the environment may seep
into the interior of the INSYS Modem 56k small EU 2.1.
Risk of death through shock hazard when touched!
The INSYS Modem 56k small EU 2.1 may not be used in
wet or damp environments, or in or very close to water.
Install the device at a dry location, protected from water
spray. Switch the power supply off before you do any
work on a device which may have been in contact with
moisture.
Danger!
Danger!
Note
The device could be destructed if the wrong power supply is used.
If the INSYS Modem 56k small EU 2.1 is used with a
power supply which has a larger voltage than the allowed operational voltage of the INSYS Modem 56k
small EU 2.1, the device is destroyed.
Make sure that you use the suitable power supply. The
Chapter "Technical Data" has the information about the
correct voltage range for the INSYS Modem 56k small EU
2.1.
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INSYS Modem 56k small EU 2.1 Installation
Mount the device to the DIN rail
Instructions on how to mount the INSYS Modem 56k small EU 2.1 to a DIN
rail.
1. Position the device at the DIN rail as seen in the following diagram. There
are two snap-in hooks at the outer edge of the DIN rail groove of the INSYS
Modem 56k small EU 2.1. Hook them into place behind the upper edge of
the DIN rail when connecting the device.
2. Lift the INSYS Modem 56k small EU 2.1 perpendicular to the DIN rail until the
plastic spring of the third, flexible snap-in hook engages in the DIN rail.
The INSYS Modem 56k small EU 2.1 is now completely mounted.
Connecting the power supply
The device has already been mounted to the DIN rail.
The power supply is connected and switched off.
1. Connect the ground lead of the power supply to the terminal "GND".
2. Connect the plus pole of the power supply to the terminal for the power
supply.
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Installation INSYS Modem 56k small EU 2.1
Disassemble the device from the DIN rail
Instructions on how to disassemble the INSYS Modem 56k small EU 2.1
from a DIN rail in a cabinet:
You will need a flat tip screwdriver with a 4.5 mm blade.
The power supply of the cabinet is switched off and secured against being
switched off accidentally.
All cables at the INSYS Modem 56k small EU 2.1 are disconnected.
1. Insert the flat tip screwdriver into the flexible snap-in hook of the INSYS Mo-
dem 56k small EU 2.1 as shown in the diagram.
Exposed electrical components!
Risk of death through electric shock hazard!
Prior to the installation, switch the power of the cabinet
off and secure it against being switched on again.
Danger!
2. Turn the flat tip screwdriver into the direction of the INSYS Modem 56k small
EU 2.1 as shown in the diagram.
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INSYS Modem 56k small EU 2.1 Installation
The plastic spring of the snap-in hook is pulled apart.
3. While you hold the plastic spring of the snap-in hook stretched apart, pull
the INSYS Modem 56k small EU 2.1 away from the DIN rail.
4. Unhook the INSYS Modem 56k small EU 2.1 and take it off, perpendicularly
to the DIN rail.
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Initial Operation INSYS Modem 56k small EU 2.1
10 Initial Operation
This chapter describes how to activate the INSYS Modem 56k small EU 2.1, i.e. how
to connect the INSYS Modem 56k small EU 2.1 to a PC, to a telephone network and
how to test it.
Connect the INSYS Modem 56k small EU 2.1to a PC
How to connect the INSYS Modem 56k small EU 2.1 to a PC via a serial in-
terface.
You will need the 9-pin serial cable.
You will need a free serial interface at the PC.
Use preferably serial interfaces which are actually at the PC as "real" hard-
ware. Virtual serial interfaces or USB-to-Serial solutions often cause problems.
1. Connect the 9-pin serial cable with the INSYS Modem 56k small EU 2.1 and
fasten the connection screws.
2. Connect the 9-pin serial cable to a free serial interface of your PC.
Note or remember to which interface (COM1 or COM2) you connected the
INSYS Modem 56k small EU 2.1 at the PC.
Connect the INSYS Modem 56k small EU 2.1 to the telephone network
You will need the supplied phone cord
1. Plug the RJ12 jack of the cable into the RJ45 phone connection at the INSYS
Modem 56k small EU 2.1.
2. Plug the TAE or RJ12 jack of the cable into the phone socket of your phone
connection.
Test the INSYS Modem 56k small EU 2.1
The INSYS Modem 56k small EU 2.1 is connected to the PC.
The power supply of the INSYS Modem 56k small EU 2.1 is switched on.
A terminal program such as TeraTerm is installed at the PC.
1. Open your terminal program.
2. Open the serial interface, to which the INSYS Modem 56k small EU 2.1 is con-
nected.
3. Enter AT into your terminal program.
The response will be OK.
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INSYS Modem 56k small EU 2.1 Initial Operation
If you don't receive the response OK, check the connection and if the INSYS
Modem 56k small EU 2.1 receives power. Repeat the test.
The RX/TX LED light up while you type.
If the RX/TX LED at the INSYS Modem 56k small EU 2.1 does not light up,
while you type AT and receive an OK, the reason may be that you are connected to another modem (e.g. with the modem integrated in the laptop or
the PC).
In this case, check to which interface your INSYS Modem 56k small EU 2.1 is
actually connected and repeat the test.
The INSYS Modem 56k small EU 2.1 is successfully installed and ready for
operation.
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Operating Principle INSYS Modem 56k small EU 2.1
11 Operating Principle
This chapter describes the basis procedures to operate and configure a INSYS Modem 56k
small EU 2.1. It will also give you an overview of the control elements of the software
HSComm.
You have two possibilities to operate and configure the INSYS Modem 56k small EU 2.1.
In general, the INSYS Modem 56k small EU 2.1 is configured and operated via AT commands. You can enter these commands yourself with the help of a terminal program and
the AT command reference. As an alternative, you can enter the most important functions easily with the help of the configuration software HSComm.
11.1 Operation with the Terminal Program
In general, any terminal program may be used. We recommend the program TeraTerm by T. Teranishi. It is available free of cost on the Internet at
http://hp.vector.co.jp/authors/VA002416/teraterm.html.
Configuration of the INSYS Modem 56k small EU 2.1 with a terminal program
How to configure and operate the INSYS Modem 56k small EU 2.1 with a
terminal program.
The INSYS Modem 56k small EU 2.1 is connected to the PC and switched on.
A terminal program is installed on the PC.
1. Start your terminal program.
2. Open the serial port to which you connected the INSYS Modem 56k small EU
2.1.
COM1 under Windows corresponds to /dev/ttyS0 under Linux.
3. Type the character string AT into the terminal program. Complete the entry
by pressing the Enter key.
Each command input starts with AT und is completed with the Enter key.
The INSYS Modem 56k small EU 2.1 responds with OK:
If the INSYS Modem 56k small EU 2.1 does not respond, this may have two
reasons:
a) The INSYS Modem 56k small EU 2.1 is switched off or
b) The INSYS Modem 56k small EU 2.1 is connected to a different serial port.
Check it and repeat step 3.
4. Configure the INSYS Modem 56k small EU 2.1 with the help of the AT com-
mands.
A reference of the AT commands can be found in the chapter "AT Com-
mand Reference".
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INSYS Modem 56k small EU 2.1 Operating Principle
5. Save your entries with AT&W.
Not all settings at the INSYS Modem 56k small EU 2.1 must be actively
stored by entering AT&W. Some settings are automatically saved immediately. We still recommend to send the command AT&W to the INSYS Modem 56k small EU 2.1 as your last configuration step to ensure that all settings are stored safely and are available for the next restart.
11.2 Operation with HSComm
Use the software HSComm to easily configure the INSYS Modem 56k small EU 2.1.
HSComm offers an interface for the parameters of the most important AT commands of the INSYS Modem 56k small EU 2.1. The operation is mostly selfexplanatory. You can download the software from the INSYS MICROELECTRONICS
homepage (www.insys-tec.de).
Configuration and settings of the INSYS Modem 56k small EU 2.1 with HSComm
How to configure the INSYS Modem 56k small EU 2.1 with the software
HSComm.
The INSYS Modem 56k small EU 2.1 is connected to the PC and switched on.
The software HSComm Modem is installed on the PC.
1. Start the program HSComm Modem.
The program starts.
A message window "Read settings..." is displayed.
The program will now search for a connected INSYS Modem 56k small EU
2.1 and will attempt to read the settings.
After a short time, the settings are read out. A status message "Settings
read." appears.
2. Click OK in the status message.
3. Enter the required settings.
4. Afterwards, click on Send (page 26, Figure 5, position 21).
A dialog box with the message "Modem settings are sent" is displayed.
The entered settings are sent to the INSYS Modem 56k small EU 2.1 and
stored.
A dialog box with the message "Modem settings sent" is displayed .
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Operating Principle INSYS Modem 56k small EU 2.1
5. Click OK in the status message.
11.3 User Interface of the Software HSComm Modem
In the following, the user interface of the software is displayed. These illustrations
should help you find the different software settings.
Figure 5: HSComm Modem - Tab Modem
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INSYS Modem 56k small EU 2.1 Operating Principle
Position Function/Description
1 Save and load settings in files.
2 Set the serial interface of the PC.
3 Button to activate the integrated terminal.
4 Button to switch from the terminal view to the configuration view.
5 -Function no longer available6 Set the DTR behavior
7 Set the HSComm program start behavior.
8 Read settings, reset INSYS Modem 56k small EU 2.1.
9 Set the interface language.
10 Not available for INSYS Modem 56k small EU 2.1.
11 Program help.
12 Program version information.
13 Entry field for additional AT commands.
14 Not available for INSYS Modem 56k small EU 2.1.
15 Settings for dial tone recognition and connection acceptance.
16 Not available for INSYS Modem 56k small EU 2.1.
17 Button to read the settings from the INSYS Modem 56k small EU 2.1.
18 Button to reset the INSYS Modem 56k small EU 2.1.
19 Button to send the default settings to the INSYS Modem 56k small EU 2.1.
20 Display/function not available for INSYS Modem 56k small EU 2.1.
21 Button to send the settings to the INSYS Modem 56k small EU 2.1.
22 Settings for modem responses (equivalent to AT commands Q, E, and V).
23 Status line, shows status and settings of the used serial PC interface.
24 Not available for INSYS Modem 56k small EU 2.1.
25 Error correction settings.
26 Data flow or handshake settings for the INSYS Modem 56k small EU 2.1.
27 Tab to select the different configuration areas.
Table 6: Description of the functions on the HSComm tab "Modem"
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Functions INSYS Modem 56k small EU 2.1
12 Functions
12.1 Establishing or Accepting a Data Connection
The INSYS Modem 56k small EU 2.1 can call another modem via the phone line and establish a data connection. After dialling a phone number, the INSYS Modem 56k small EU
2.1 synchronises with the called modem and opens a data connection with the transmission speed, which is currently set at the serial interface. All incoming characters are
transmitted to the other (called) modem during the active data connection. Therefore, AT
commands are not processed during a connection. The INSYS Modem 56k small EU 2.1
must be changed to command mode again using an "Escape sequence" that it processes
AT commands again during an active connection. Then, the local INSYS Modem 56k small
EU 2.1 processes the entered characters as AT commands and does not transmit them to
the remote terminal.
The INSYS Modem 56k small EU 2.1 can accept an incoming connection in the same way.
For this, the "application" or the PC with the terminal program at the serial interface
must have DTR signalling enabled, otherwise, the INSYS Modem 56k small EU 2.1 does
not accept the incoming connection. In this case, DTR signalling must be disabled in the
INSYS Modem 56k small EU 2.1 that a connection is accepted regardless of the status of
the application. The status of the hardware data flow control (enabled by default) must
also be considered. It answers after the configured number of ring tones and opens a
connection.
Configuration with AT commands
The HSComm enables to establish a connection via the integrated terminal
program. Click "Terminal" (page 26, Figure 5, position 3) in the menu bar of
HSComm, to open the integrated terminal program.
Configuration with AT commands
In order to establish a data connection with the INSYS Modem 56k small
EU 2.1, use the command
Replace <number> with the phone
number of the remote terminal.
In order to explicitly use tone dialling
for dialling the number, use the
command
In order to explicitly use pulse dialling
for dialling the number, use the
command
ATD<number>
ATDT<number>
ATDP<number>
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INSYS Modem 56k small EU 2.1 Functions
If you want to dial a fax device, the
INSYS Modem 56k small EU 2.1 must
AT+FCLASS=1
be changed to fax mode before. This
is accomplished with the command
If the remote terminal accepts the
connection, the INSYS Modem 56k
CONNECT
small EU 2.1 indicates
If the remote terminal is busy, the
INSYS Modem 56k small EU 2.1 indi-
BUSY
cates
If the remote terminal is no modem,
the INSYS Modem 56k small EU 2.1
NO CARRIER
indicates after the remote terminal
has picked up
If the INSYS Modem 56k small EU 2.1
does not receive a dial tone after pick-
NO DIALTONE
ing up before dialling, it indicates
If the INSYS Modem 56k small EU 2.1
is connected to a telephone system, it
may be possible that no dial tone, but
a different acoustical signal is audible
after picking up.
To configure the INSYS Modem 56k
small EU 2.1 that it does not wait for
a dial tone before dialling, use the
following command before dialling
In order to change to command mode
during a data connection, use the escape sequence
No data must be transmitted for 1
second before and after that the INSYS Modem 56k small EU 2.1 changes
to command mode.
In order to change from command
mode to normal data transmission
again, use the command
ATX3
+++
ATO
In order to accept an incoming con-
ATA
nection, use the command
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Functions INSYS Modem 56k small EU 2.1
In order to configure the number of
ring tones after which the INSYS Modem 56k small EU 2.1 answers and
accepts the connection, use the
ATS0=<n>
command
Replace <n> with the number of ring
tones.
In order to terminate a connection
and cause the INSYS Modem 56k
ATH
small EU 2.1 to hang up, use the com-
mand
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INSYS Modem 56k small EU 2.1 Functions
12.2 Automatic Baud Rate Detection
12.2.1 Serial Connection
The automatic baud rate detection enables a continuous automatic adjustment of all
parameters (baud rate, data format) of the serial interface at the INSYS Modem 56k
small EU 2.1. The device will detect during the operation, which baud rate and which
data format is applied to the serial interface. After a restart, the INSYS Modem 56k small
EU 2.1 will restore the last working interface configuration. With each incoming AT
command (according to the character string "AT"), the parameters for the interface of
the INSYS Modem 56k small EU 2.1 will be checked and adjusted, if necessary. This is the
reason why the baud rate can not be stored with the command AT&W, as the INSYS Modem 56k small EU 2.1 will immediately adjust its interface to the current parameters of
the currently established serial connection.
The function is active as default.
Configuration with HSComm
A configuration using HSComm is not possible, because the automatic baud
rate detection will re-adjust the baud rate of the serial interface at the INSYS
Modem 56k small EU 2.1 immediately after each further "AT". As the software
sends several commands, entering an AT command to temporarily change the
baud rate in the field "Initialization string" will at best be ineffective. It can
also result in errors during the transmission of the settings from the software
to the INSYS Modem 56k small EU 2.1.
Configuration with AT commands
To set the baud rates temporarily (until the
next "AT"), enter one of the following baud
rates for <n>:
300, 600, 1200, 2400, 4800, 9600, 14400,
19200, 28800, 38400, 57600 or 115200 bps.
This setting can not be stored.
The INSYS Modem 56k small EU 2.1 must be configured with the baud rate,
which is used to operate the application at a later time, as the INSYS Modem
56k small EU 2.1 will always use the last known functioning configuration of
its interface.
AT+IPR=<n>
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Functions INSYS Modem 56k small EU 2.1
12.2.2 Phone Connection
The automatic negotiation of the baud rate and the modulation standard enables the
INSYS Modem 56k small EU 2.1 to negotiate the largest possible connection speed to the
remote terminal while the connection is established. The speed depends on the settings
and the abilities of the modem at the remote terminal. Via the modulation standard, the
connection speed can be set through the phone line. If nothing is defined, the INSYS Modem 56k small EU 2.1 will automatically try to determine the optimum connection parameters.
The function is active as default.
Configuration with HSComm
A direct configuration with the HSComm is not intended. The AT command to
define a fixed baud rate can be sent to the INSYS Modem 56k small EU 2.1 via
the entry field "Initialization string" (page 26, Figure 5, position 13).
Configuration with AT commands
To configure the modulation standard and
AT+MS=<modulation>
thus the connection speed, use the command:
Please find the possible parameters for this command in the Chapter "AT
Command reference".
To display the current settings:
For a list of possible parameter of the com-
AT+MS?
AT+MS=?
mand, enter:
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INSYS Modem 56k small EU 2.1 Functions
12.3 Data Buffer for Serial Data Transmission
The INSYS Modem 56k small EU 2.1 provides send and receive buffers. These buffers prevent the loss of data, in case the application or the remote terminal can not receive data
at this time. The data buffer can be deactivated together with the error correction (bit
direct mode). When the buffer is activated, the data flow control should be active to
avoid a buffer overflow in the INSYS Modem 56k small EU 2.1. If the buffer flows over,
the INSYS Modem 56k small EU 2.1 will perform a reset. Operation without a buffer and
error correction is only useful for special character framings.
The function is active as default.
Configuration with HSComm
Select the type of error correction on the tab Modem in the panel "Phone interface" (page 26, Figure 5, position 25). Buffering is active for all options except the option "unbuffered, bit direct". To deactivate the buffer (and simultaneously the error correction), select "unbuffered, bit direct".
Configuration with AT commands
To deactivate the error correction as well as
the buffer in the INSYS Modem 56k small EU
2.1 for applications with special data format,
use the command:
To deactivate only the error correction, use the
command:
AT\N1
AT\N0
12.4 Bit Direct Mode
For special applications, the buffering of the INSYS Modem 56k small EU 2.1 can be deactivated using the setting "unbuffered, bit direct". All data is forwarded without buffering
and further influence of the INSYS Modem 56k small EU 2.1. This applies especially to the
parity and stop bits. The error correction and the data compression are in this case
switched off as well. If the INSYS Modem 56k small EU 2.1 is operated in this mode, not
all functions will be available. The remote configuration and all functions for which a
password is required, will no longer be available. This mode should only be used for spe-
cial character framings.
Configuration with HSComm
Select the type of error correction on the tab Modem in the panel "Phone interface" (page 26, Figure 5, position 25). Select "unbuffered, bit direct" to
switch to bit direct mode.
Configuration with AT commands
To deactivate the buffer of the INSYS Modem
56k small EU 2.1 and to switch on the bit di-
rect mode, use the command:
AT\N1
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Functions INSYS Modem 56k small EU 2.1
12.5 Data Flow Control (Handshake)
The data flow control ensures that the data transfer is interrupted as soon as the modem
buffer exceeds a certain level. Two data flow control options are available: Via the control lines RTS and CTS, or via the control characters XON/XOFF which are inserted into
the data stream.
12.5.1 Hardware data flow control (RTS/CTS)
The hardware data flow control works in two directions. When the critical buffer level is
exceeded, the modem will set the CTS line to "low" and will thus indicate to the application to interrupt the dataflow. When the buffer is emptied sufficiently for the INSYS Modem 56k small EU 2.1 to be able to receive data again, the CTS line is set to "high". Reversely, the application can also indicate to the INSYS Modem 56k small EU 2.1 to interrupt the data flow. This is done via the RTS line. If it is set to "low", the modem will interrupt the data flow to the application. The application will set it to "high" to request data
from the INSYS Modem 56k small EU 2.1.
The data flow control with RTS/CTS behavior is active by default.
Configuration with HSComm
Select the type of data flow control or switch it off completely on the tab Modem in the panel "Handshake" (page 26, Figure 5, position 26).
Configuration with AT commands
To switch the data flow control on and to set
the type to RTS/CTS, use:
To switch the data flow control off, use:
AT&K3
AT&K0
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INSYS Modem 56k small EU 2.1 Functions
12.5.2 Software data flow control (XON/XOFF)
When the input buffer of the modem exceeds a certain fill state, the modem will insert
an XOFF character into the data stream to the application. This character will cause the
application to send no more data. It will depend on the according application software if
the XON/XOFF data flow control is supported.
After the input buffer of the modem is emptied so much that data can be received again,
the modem will send an XON character to the application. This character will cause the
application to send data to the modem again. Analogously, the application can insert
XON/XOFF characters into the data stream to switch the data flow on and off. The
XON/XOFF data flow control is only available when the transmitted data do not contain
the characters XON or XOFF, which usually appear only in actual ASCII texts (7 bit). When
binary data (programs, etc.) are transmitted, or in the XMODEM transmission protocol,
for example, occasionally appearing XON or XOFF characters would disturb the operation.
Configuration with HSComm
Select the type of data flow control or switch it off completely on the tab Modem in the panel "Handshake" (page 26, Figure 5, position 26).
Configuration with AT commands
To switch the data flow control on and to set
the type to XON/XOFF, use:
To switch the data flow control off, use:
AT&K4
AT&K0
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Functions INSYS Modem 56k small EU 2.1
12.6 Error correction
The INSYS Modem 56k small EU 2.1 masters the V.42 error correction protocol including
the Microcom Networking Protocol Levels 2/3/4 (MNP2, MNP3, MNP4) and the data
throughput optimization MNP10. The V.42 error correction includes the protocols LAPM
(Link Access Procedure for Modem) and MNP4. LAPM is the preferred error correction.
MNP 4 is supported to maintain the compatibility with other MNP modems. Both methods determine frames to transfer net data and use CRC (Cyclic Redundancy Check) check
sums for error tests. In V.42, there is the option to have the modem identify if the partner
is a V.42 modem, a MNP modem, or a modem without error correction. The modem can
then autonomously adjust to the partner.
As default, the automatic selection of V.42LAPM or MNP4 or no correction is set.
Configuration with HSComm
Select the type of data flow control or switch it off completely on the tab Modem in the panel "Error correction" (page 26, Figure 5, position 25).
Configuration with AT commands
To define the type of error correction, use the
command:
To set V.42LAP-M or MNP4 error correction
exclusively, use:
Use the following command for the INSYS
Modem 56k small EU 2.1 to automatically select V.42LAP-M, MNP4, or an error-corrected
connection:
To set V.42LAP-M error correction exclusively,
use:
For the buffered mode without error correc-
tion, use:
AT\N<n>
AT\N2
AT\N3
AT\N4
AT\N0
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INSYS Modem 56k small EU 2.1 Functions
12.7 Data Compression
The INSYS Modem 56k small EU 2.1 supports various data compression types. During the
connection setup, it will automatically detect the type of data compression used by the
remote terminal, or it is set to a certain type of data compression. Data compression is
only available for error corrected connections. To be able to use data compression, both
sides (sender and recipient) must be able to at least recognize and support the same data
compression mode.
The default setting is the automatic selection of MNP5 and V42.bis and V.44 data compression (AT%C3).
Configuration with HSComm
Direct configuration with the HSComm is not intended. The AT command to
define a fixed baud rate can be sent to the INSYS Modem 56k small EU 2.1 via
the entry field "Initialization string" (page 26, Figure 5, position 13).
Configuration with AT commands
To select the compression type, use:
To completely switch off the compression, use
the following commands:
To select the MNP4 compression:
To select the V42bis and V.44 data compression if they are switched on (see below):
To select the V42bis and MNP5 data compression if V42.bis compression is switched on (see
below):
To switch on V.42bis compression:
To switch on V.44 compression:
To switch off V.42bis compression:
To switch off V.44 compression:
AT%C<n>
AT%C0
AT+DS44=0
AT%C1
AT%C2
AT%C3
AT%C2
AT+DS44=3
AT%C0
AT+DS44=0
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Functions INSYS Modem 56k small EU 2.1
12.8 Automatic Dial-Up Delay
The standard TBR21 applies to all public phone networks in EC countries (Belgium, Denmark, German, Finland, France, Greece, Great Britain, Ireland, Italy, Luxembourg, Netherlands, Austria, Portugal, Sweden, Spain), as well as in Switzerland, Liechtenstein, Norway
and Iceland.
According to the regulations of the TBR 21, a dial-up is blocked for 2 hours after 12 unsuccessful dial-up attempts.
In this case, the modem indicates the message BLACKLISTED.
The modem must be briefly disconnected from the power supply in this case.
The counter will be reset automatically following each successful connection establishment.
If the connection to the remote terminal has been established successful, a dialling pause of 5 seconds will be maintained.
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INSYS Modem 56k small EU 2.1 Functions
12.9 User Profiles
12.9.1 Changing the Configuration
The INSYS Modem 56k small EU 2.1 knows different user profiles. Besides the default
factory settings, which serve for achieving a defined, operable initial condition of the
modem, the user profiles 0 and 1 are available. You can save configurations to the user
profiles, which are reused for certain purposes. A part of the S registry is saved with each
profile. The concerned registers are indicated in the S registry description with an asterisk "*".
A reset is always performed before loading a user profile.
Configuration with AT commands
In order to load the factory default settings
into the INSYS Modem 56k small EU 2.1, use
the command
AT&F
In order to load user profile 0 into the INSYS
Modem 56k small EU 2.1, use the command
In order to load user profile 1 into the INSYS
Modem 56k small EU 2.1, use the command
In order to display the user profile settings, use
the command
ATZ
ATZ0
ATZ1
AT&V
12.9.2 Saving the Configuration
If the configuration of the INSYS Modem 56k small EU 2.1 has been adapted to the requirements of the user, it is possible to save the settings in user profile 0 or 1.
Changes of the configuration get lost after a RESET or restart, if the have not been saved
before.
Configuration with AT commands
In order to save the current configuration to
user profile 0, use the command
AT&W
AT&W0
In order to save the current configuration to
user profile 1, use the command
AT&W1
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Functions INSYS Modem 56k small EU 2.1
12.10 Reset
The INSYS Modem 56k small EU 2.1 can be reset in three ways: By interrupting the supply
voltage for a short time, by connecting the terminal "Reset" to the terminal GND, by using an AT command and with the help of the HSComm software.
Configuration with HSComm
To reset the INSYS Modem 56k small EU 2.1, click the button "Reset modem"
(page 26, Figure 5, position 18).
To reset the INSYS Modem 56k small EU 2.1 to the Factory defaults, click the
button "Reset modem" (page 26, Figure 5, position 19).
Configuration with AT commands
To reset the INSYS Modem 56k small EU 2.1,
use the command
To reset the INSYS Modem 56k small EU 2.1
and to load the user profile "0" afterwards, use
To reset the INSYS Modem 56k small EU 2.1
and to load the user profile "1" afterwards, use
To reset the INSYS Modem 56k small EU 2.1 to
the factory defaults, use
ATZ
ATZ0
ATZ1
AT&F&WZ
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INSYS Modem 56k small EU 2.1 Maintenance
13 Maintenance
Firmware update
The firmware of the INSYS Modem 56k small EU 2.1 can be updated to add more functions to the INSYS Modem 56k small EU 2.1 or to improve the existing functions. A firmware update can be performed with the help of a terminal program that supports ASCII
uploads (e.g. TeraTerm).
Firmware update with a terminal program
Function loss due to faulty update!
The INSYS Modem 56k small EU 2.1 may loose its function, if it is updated with a wrong firmware or if the
transfer of the firmware was faulty.
Before updating the firmware of the INSYS Modem 56k
small EU 2.1, contact the INSYS MICROELECTRONICS support department. They will provide you with the suitable
firmware version for your INSYS Modem 56k small EU
2.1.
Note
How to load new firmware to the INSYS Modem 56k small EU 2.1.
You will need a terminal program that supports ASCII file transfers, such as
TeraTerm.
You will need the firmware that is suitable for your INSYS Modem 56k
small EU 2.1.
The INSYS Modem 56k small EU 2.1 is connected to the PC.
1. Start your terminal program.
2. Activate hardware handshake in the terminal program.
3. Open the serial interface, to which the INSYS Modem 56k small EU 2.1 is con-
nected.
4. Set the baud rate in the terminal program to 57600 baud.
5. Type in "AT" and confirm with "Enter".
The INSYS Modem 56k small EU 2.1 responds with OK.
If the INSYS Modem 56k small EU 2.1 does not respond, check the connection
and if the device receives power at all. Continue with step 2.
The firmware upload can not function without the hardware handshake.
The input buffer at the serial interface of the INSYS Modem 56k small EU
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Maintenance INSYS Modem 56k small EU 2.1
2.1 flows over and the INSYS Modem 56k small EU 2.1 resets itself. In this
case, you will hear the relays click during the uploads. It is possible that an
error message is displayed.
Before you start with the upload, ensure that no other programs are active
on your system, which could interrupt the data flow at the serial interface.
Opening a DVD drive, playing music or connecting a USB device can also
disturb or interrupt the data flow. As a result, the INSYS Modem 56k small
EU 2.1 may fail to function, and only INSYS MICROELECTRONICS will be able
to restore it.
6. Type AT** to start the firmware upload.
The modem reports "Download initiated ...".
7. Use the terminal program to send the file with the firmware loader, such as
"P9-02-16.S37".
The upload progress is displayed by dots in the terminal window.
The INSYS Modem 56k small EU 2.1 will report the successful upload of the
firmware loader, e.g. with
NV_RAM Uploader - Rev 06
Upload NV_RAM Data .
If you didn't receive the previous message for a successful upload, the upload
has most probably failed. Try to reset the INSYS Modem 56k small EU 2.1 and
to repeat the process from step 4. If this fails and the INSYS Modem 56k small
EU 2.1 does no longer react to AT commands, please contact the INSYS MICROELECTRONICS support department.
8. Use the terminal program to send the file with the firmware, such as
"20B7.S37".
The upload progress is again displayed by dots in the terminal window.
After a successful upload, the INSYS Modem 56k small EU 2.1 will display:
Device successfully programmed.
The INSYS Modem 56k small EU 2.1 will reset itself and is ready for opera-
tion.
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INSYS Modem 56k small EU 2.1 Waste Disposal
14 Waste Disposal
14.1 Repurchasing of Legacy Systems
According to the new WEEE guidelines, the repurchasing and recycling of legacy systems
for our clients is regulated as follows:
Please send those legacy systems to the following address, carriage prepaid:
Frankenberg-Metalle
Gaertnersleite 8
D-96450 Coburg
Germany
This regulation applies to all devices which were delivered after August 13, 2005.
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AT Command Reference INSYS Modem 56k small EU 2.1
15 AT Command Reference
Each AT command starts with the letters AT and ends with a carriage return (CR). Both,
upper and lower case letters are accepted; however, the leading letters must either be AT
or at. The command line will be evaluated as soon as the modem has received a carriage
return. A parameter, which is indicated with the letter <n> in the description, means that
it can be adjusted.
For example ATL<n>, where <n> can take on the values 0 to 3, thus e.g. ATL2 (medium
volume). The modem uses always the parameter 0 for commands, which expect a parameter, but are specified without a parameter. The commands ATZ and ATZ0, for example, show the same effect.
The factory default settings are indicated with "(default)".
The standard end character is "Carriage Return" (0Dh) or also known as "<CR>". No "Car-
riage Return" must be entered after entering "+++".
The commands are acknowledged with OK or ERROR. A command being
processed will be interrupted with every further incoming character. Therefore, you must wait for the acknowledgement before entering the next
command, because otherwise the current command will be deleted.
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INSYS Modem 56k small EU 2.1 AT Command Reference
15.1 AT Command Overview
Command Description
AT** Start of the flash load function
ATA Answer mode
The INSYS Modem 56k small EU 2.1 changes to answer mode. It is only effective in Germany, if the telephone connected in series is off-hook or a call comes in.
A/ Repeat the last command
The last command entered will be repeated.
AT\B<n> Send "break" to the other INSYS Modem 56k small EU 2.1
In case of non-error-corrected connections, the INSYS Modem 56k small EU 2.1 sends a
break signal to the other INSYS Modem 56k small EU 2.1. The length of the signal is: the
specified parameter times 1/10 of a second.
For error-corrected connections, the INSYS Modem 56k small EU 2.1 sends a break signal according to the active error correction protocol without considering a parameter
specification.
If no connection is established or if a fax connection is active, an error message is displayed.
AT\B1 1/10 second break signal
AT\B2 2/10 seconds break signal
AT\B3 3/10 seconds break signal
AT\B4 4/10 seconds break signal
AT\B5 5/10 seconds break signal
AT\B6 6/10 seconds break signal
AT\B7 7/10 seconds break signal
AT\B8 8/10 seconds break signal
AT\B9 9/10 seconds break signal
AT%C<n> Enabling the data compression
Enable/disable a data compression type
The INSYS Modem 56k small EU 2.1 can only perform data compression with errorcorrected connections.
AT%C0 No data compression enabled
AT%C1 MNP 5 data compression enabled
AT%C2 V.42bis and V.44 data compression enabled
AT%C3 MNP 5 and V.42bis data compression enabled (default)
AT&C<n> DCD (CT109) behaviour
Behaviour of the RS232 DCD output of the INSYS Modem 56k small EU 2.1.
AT&C0 DCD is always ON
AT&C1 DCD follows the carrier signal on the phone line (default)
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
ATD<n> Dialling
The INSYS Modem 56k small EU 2.1 goes off-hook and dials according to the dialling
string handed over with the ATD command. After dialling, the INSYS Modem 56k small
EU 2.1 tries to establish a connection. If the ATD command has been executed without
a dialling string, the INSYS Modem 56k small EU 2.1 goes off-hook and tries to establish
a connection to the other INSYS Modem 56k small EU 2.1 (without dialling). The behaviour of the INSYS Modem 56k small EU 2.1 depends on the activation of the line current
detection (refer to ATX command).
The execution of the ATD command also depends on the time when the last dialling
attempt was performed.
The INSYS Modem 56k small EU 2.1 behaves like a data modem in the mode
AT+FCLASS=0. It attempts to connect to another data modem. This attempt is repeated until the waiting period that was specified in the S7 registry has expired.
If this time is exceeded, the INSYS Modem 56k small EU 2.1 hangs up and displays the
error message: NO CARRIER.
The INSYS Modem 56k small EU 2.1 behaves like a fax modem in the mode FCLASS=1 or
=2. It attempts to connect to another fax or fax modem. (The INSYS Modem 56k small
EU 2.1 goes into receive status HDLC V.21 channel 2, as if the command AT+FRH has
been executed).
The following characters may be transmitted as parameters (brackets, punctuation
marks, spaces and semicolons are ignored):
0 to 9 The digits from 0 to 9
* The asterisk: only for tone dialling
# The hash: only for tone dialling
A-D The tone dialling characters A, B, C, D
P Pulse dialing mandatory: Pulse or tone dialing is required according to
the region.
T Tone dialing mandatory: Pulse or tone dialing is required according to
the region.
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INSYS Modem 56k small EU 2.1 AT Command Reference
Command Description
ATD<n>
(Continuation)
W Wait for dialing tone: The INSYS Modem 56k small EU 2.1 waits for the
dialling tone before it starts to dial. If no dialling tone was detected
within the period specified in the S6 registry, the INSYS Modem 56k
small EU 2.1 hangs up and an error message is displayed.
@ Wait for silence: The INSYS Modem 56k small EU 2.1 waits at least five
seconds for silence in the line, before it executes the next character
from the parameter string. If this five second silence can not be detected and the abort period in the S7 registry has not been exceeded,
the INSYS Modem 56k small EU 2.1 terminates the connection displaying the message: NO ANSWER.
If busy tone detection is enabled, the INSYS Modem 56k small EU 2.1 the dial-up indi-
cating the message: BUSY.
If a response tone from the other INSYS Modem 56k small EU 2.1 is
received during the waiting period, a connection is established.
‚ Dial tone delay: The INSYS Modem 56k small EU 2.1 performs a dial
tone delay before it executes the next character of the parameter
string. The delay length is defined in the S8 registry.
L Last number re-dialling.
; Return to the input mode after dialling. It is added to the end of the
dialling string and causes the INSYS Modem 56k small EU 2.1 to return
to the entry mode when it reaches ";" (with: OK message). This enables
the input of AT commands even with a receiver off-hook. The additional
AT commands can follow in the same input line after the ";" or they can
be transmitted to further input lines. The ATH command will abort the
connection and the receiver is hung up.
S=n Dialling the n-th number from the number pool, which was set up with
the AT&Z<n> command.
! Flash – If the character ”!” is a part of the dialling string, the INSYS Mo-
dem 56k small EU 2.1 will hang up within the time frame determined in
S29 and then goes off-hook again.
^ Suppresses the sending of a ringing tone.
ATD12345; The semicolon (;) causes the return to the input mode after dialling.
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
ATD<n>
(Continuation)
Default: Ringing tone is sent for fax operation. No ringing tone for data opera-
tion.
( ) Are ignored: They are just used as an outline.
- Are ignored: They are just used as an outline.
‚ ‚ Space characters are ignored: They are just used as an outline.
Examples:
ATD12345 Dial the phone number 12345
ATDP12345 Dial the phone number 12345 with the pulse dialling method
ATDT12345 Dial the phone number 12345 with the tone dialling method
ATX3D0W12345
For PBXs, which connect to the exchange line using the prefix 0 (or 9):
First, blind dialing is activated by: X3 (refer to the ATX3 command) to
be able to dial a leading 0 without hearing a dialling tone. After 0 has
been dialled via: D0, dialling tone recognition can be switched on again
using the parameter: W. The INSYS Modem 56k small EU 2.1 thus waits
for the dialling tone and continues with the rest of the dial-up (via:
12345) only after hearing the dialling tone. Waiting for the dialling tone
may be omitted. In this case, the dialling command is ATX3D012345.
AT&D<n> DTR (CT108/2) Behaviour
DTR (CT108/2) behaviour – Monitoring on/off transitions of the RS232 DTR line of the
PC.
AT&D0 DTR is ignored. Allows the operation with PCs which do not operate
DTR.
AT&D1 A DTR on/off transition causes the INSYS Modem 56k small EU 2.1 to
react as if it had received an escape sequence +++. The INSYS Modem
56k small EU 2.1 changes to input mode without hanging up.
AT&D2 A DTR on/off transition causes the INSYS Modem 56k small EU 2.1 to
hang up. Going off-hook automatically is not possible. (default)
AT&D3 A DTR on/off transition causes the INSYS Modem 56k small EU 2.1 to
perform a reset as if an ATZ command has been executed. A preceded
AT&Y command decides if either the default 0 or 1 is loaded.
AT+DS=<n>
AT+DS44=<n> Enable/disable V.44 data compression
Enable/disable V.42bis data compression
AT+DS=0 Disables V.42bis data compression
AT+DS=3 Enables V.42bis data compression (default)
AT+DS44=0 Disables V.44 data compression
AT+DS44=3 Enables V.44 data compression (default)
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INSYS Modem 56k small EU 2.1 AT Command Reference
Command Description
ATE<n> Command input echo
This command toggles the responses, which are created by the INSYS Modem 56k small
EU 2.1 as reaction on application commands (Echo), ON or OFF.
ATE0 Disabling echo
ATE1 Enabling echo (default)
AT%E<n> Automatic retrain
The INSYS Modem 56k small EU 2.1 performs a retrain in case of transmission problems. The INSYS Modem 56k small EU 2.1 hangs up after three insuccessful retrain attempts.
AT%E0 Retrain not allowed
AT%E1 Retrain allowed
AT%E2 Fall back, fall forward allowed (default)
AT&F Loading the factory default settings
The INSYS Modem 56k small EU 2.1 loads the factory default settings from the internal
non-volatile memory. With this, the INSYS Modem 56k small EU 2.1 can be taken into a
defined initial state. AT&F also overwrites a part of the S registry.
The INSYS Modem 56k small EU 2.1 has two factory default settings (AT&F0, AT&F1).
AT+GCI Configuring the country code
The command AT+GCI allows the customization of the modem for different countries.
By default, the modem is configured to Europe (CTR21) with AT+GCI=FD. The modem
is only approved for this country profile at the moment.
Note: Please note that all country settings will result in ALL modem settings being
reset to the default settings (such as AT&F&W). Therefore, please select a
country profile first and adjust the settings afterwards.
ATH Terminating a connection
The INSYS Modem 56k small EU 2.1 terminates the connection.
ATI<n> Identification
The INSYS Modem 56k small EU 2.1 sends an identification to the PC, according to the
parameter.
ATI0 Product code
ATI1 Previously calculated checksum of the EPROM
ATI2 Calculation of the EPROM checksum and comparison with the previ-
ously calculated checksum stored in the EPROM. Display of OK for correct comparison.
ATI3 Version number of the firmware in the EPROM
ATI4 INSYS Modem 56k small EU 2.1 version number
ATI5 Country code parameter (Germany = 006/Europe = 253)
ATI6 Version number and revision of the “data pump”
49
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
AT+IPR=<n> Determine baud rate
Use the command AT+IPR to temporarily set a certain baud rate.
AT+IPR=0 Enables the automatic baud rate detection (default)
AT+IPR=<n> Sets the INSYS Modem 56k small EU 2.1 temporarily to the fixed baud
rate <n>. The following baud rates are supported: 300, 1.200, 2.400,
4.800, 9.600, 19.200, 38.400, 57.600, 115.200 and 230400.
The setting AT+IPR is not stored with AT&W.
AT&K<n> Selecting data flow control between PC and INSYS Modem 56k small EU 2.1 (hand-
shake)
Fax operation default is RTS/CTS.
AT&K0 No data flow control
AT&K3 Select data flow control RTS/CTS (default)
AT&K4 Select data flow control XON/XOFF
AT&K5 Select transparent data flow control XON/XOFF
AT&K6 Select RTS/CTS and XON/XOFF data flow control
AT\K Break control
The INSYS Modem 56k small EU 2.1 reacts to a break (receive path OFF for a certain
amount of time), which it receives from another modem or from the PC, or from the
command AT\B according to the parameters.
1. Situation In case of a break by the application during a data connection to an-
AT\K0 INSYS Modem 56k small EU 2.1 changes to command mode, sends no
AT\K1 INSYS Modem 56k small EU 2.1 deletes the data buffer, sends break to
AT\K2 Like AT\K1
other modem:
break to another modem
another modem
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INSYS Modem 56k small EU 2.1 AT Command Reference
Command Description
AT\K
(Continuation)
AT\K3 INSYS Modem 56k small EU 2.1 sends break immediately to another
modem, data buffers are not deleted
AT\K4 Like AT\K0
AT\K5 INSYS Modem 56k small EU 2.1 inserts a break into the data transmit-
ted to the other modem
2. Situation The INSYS Modem 56k small EU 2.1 has been changed to command
mode during a data connection via an escape sequence +++. In this
condition, the AT\B command will send a break to the other modem. In
this situation, the parameter n will cause the following:
AT\K0 INSYS Modem 56k small EU 2.1 deletes the data buffer, sends break to
another modem
AT\K1 Like AT\K0
AT\K2 INSYS Modem 56k small EU 2.1 sends break immediately to the other
modem
AT\K3 Like AT\K2
AT\K4 INSYS Modem 56k small EU 2.1 inserts a break into the data transmit-
ted to the other modem
AT\K5 Like AT\K4 – Return from the online command mode into the
3. Situation In the case a break is received from another modem during a connec-
AT\K0 INSYS Modem 56k small EU 2.1 deletes the data buffer, sends break to
AT\K1 Like AT\K0
AT\K2 INSYS Modem 56k small EU 2.1 sends break immediately to the PC
AT\K3 Like AT\K2
AT\K4 INSYS Modem 56k small EU 2.1 sends a break to the application em-
AT\K5 Like AT\K4
ATL<n> Speaker volume
This command controls the speaker volume (refer to command ATM).
ATL1 Speaker volume low (default)
data mode via the ATO command.
tion that has not been error corrected, the parameters cause the following:
PC
bedded into the data received from the other INSYS Modem 56k small
EU 2.1.
ATL2 Speaker volume medium
ATL3 Speaker volume high
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
AT%L Displaying level of the received signal
The value indicated by the INSYS Modem 56k small EU 2.1 corresponds already with the
amplified level in the INSYS Modem 56k small EU 2.1, not the level on the phone line.
Large AT%L responses imply a low signal level; small values imply a high signal level.
(009 = -9db, 043 = -43db)
ATM<n> Speaker control
This command controls when the speaker is active
(refer to the command ATL<n>).
ATM0 Speaker always OFF
ATM1 Speaker ON during dialling and connection setup (default)
ATM2 Speaker always ON
ATM3 Speaker ON during connection setup
AT+MR=<n>
Displaying the modulation type
The command AT+MR=<n> enables the display of the modulation type after the message CONNECT.
AT+MR=0 Switches the display function OFF (default).
AT+MR=1 Switches the display function ON. The displayed value applies to the
sent data.
AT+MR=2 Switches the display function ON. The displayed value applies to the
received data.
If the display function is enabled, the INSYS Modem 56k small EU 2.1 displays the
modulation type and the line speed following the CONNECT message. Following the
message CONNECT, the line "+MCR: " appears followed by the modulation type (refer to
the AT+MS command) and the line "+MRR: " followed by the line speed.
Note: The AT+MR command is useful for a connection check.
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INSYS Modem 56k small EU 2.1 AT Command Reference
Command Description
AT+MS=<Modula
tion>, [Automode], [Send
Minbaud, Send
Maxbaud],
[Reception
Minbaud, Reception Max-
baud]
Select modulation type
AT+MS determines the modulation type. The command enables or disables automatic
modulation recognition and defines the highest and lowest possible connection speed.
The command has the form AT+MS=<Modulation>, [Automode], [Send Min-
baud, Send Maxbaud], [Reception Minbaud, Reception Maxbaud]
AT+MS? Shows the current setting
AT+MS=? Displays a list of possible parameters
Default factory setting:
Model 56k V92
Model 336 V34
Parameter Modulation:
The modulation parameter determines the preferred (automode = 1) or the mandatory
(automode = 0) modulation type.
The following values are available:
V21 V.21 300
V22 V.22 1200
V22B V.22bis 2400 or 1200
V23C V.23 1200
V32 V.32 9600 or 4800
V32B V.32bis 14400, 12000, 9600, 7200 or 4800
V34 V.34 33600, 31200, 28800, 26400, 24000, 21600,
19200, 16800, 14400, 12000, 9600, 7200, 4800
oder 2400 (only 336 and 56k)
V90 V.90 56000, 54667 ,53333 ,52000, 50667, 49333,
48000, 46667, 48000, 46667, 45333, 42667,
41333, 40000, 38667, 37333, 36000, 34667,
33333, 32000, 30667, 29333, 28000 (only 56k)
V92 V.92 56000, 54667 ,53333 ,52000, 50667, 49333,
48000, 46667, 48000, 46667, 45333, 42667,
41333, 40000, 38667, 37333, 36000, 34667,
33333, 32000, 30667, 29333, 28000 (only 56k)
B103 Bell 103 300
B212 Bell 212 1200/75
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
AT+MS=<Modula
tion>, [Automode], [Send
Minbaud, Send
Maxbaud],
[Reception
Minbaud, Reception Max-
baud]
(Continuation)
Parameter Automode:
The optional parameter automode determines whether the INSYS Modem 56k small EU
2.1 automatically adjusts to the desired modulation type. The following values may be
used:
0 Automatic modulation adjustment disabled
1 Automatic modulation adjustment enabled
Parameter Reception Minbaud:
The optional parameter minbaud determines the lowest possible baud rate for INSYS
Modem 56k small EU 2.1 reception.
Parameter Reception Maxbaud:
The optional parameter maxbaud determines the highest possible baud rate for INSYS
Modem 56k small EU 2.1 reception.
Parameter Send Minbaud:
The optional parameter minbaud determines the lowest possible baud rate, the INSYS
Modem 56k small EU 2.1 sends with.
Parameter Send Maxbaud:
The optional parameter maxbaud determines the highest possible baud rate, the INSYS
Modem 56k small EU 2.1 sends with.
AT\N<n> Selecting the error correction
This command determines which type of error correction should preferably be used for
subsequent connections.
AT\N0 Disabling the error correction (normal buffered mode)
AT\N1 Bit direct mode (only for special data formats)
AT\N2 Selects V.42LAP-M or MNP 4 error correction. If no error corrected con-
nection can be established, the modem will hang up.
AT\N3 Selects V.42LAP-M or MNP 4 error correction. If such a connection can-
not be established, the modem will attempt to establish a connection
that is not error corrected. (default)
AT\N4 Exclusively selects a V.42 LAP-M connection.
AT\N5 Dials exclusively MNP 4 connections.
ATO<n> Returning to online data mode
If the INSYS Modem 56k small EU 2.1 is in online command mode, it will return to
online data mode. If the INSYS Modem 56k small EU 2.1 is in offline command mode, it
.
54
reports ERROR
ATO0 Returning to online data mode.
ATO1 Before the modem switches to online data mode, a retrain procedure is
provoked.
Page 55
INSYS Modem 56k small EU 2.1 AT Command Reference
Command Description
ATP Switch on pulse dialling method (deactivated for some models)
Starting with this command, each dial-up is performed with the pulse dialling method,
until an ATT or ATDT command switches it back to tone dialling.
ATQ<n> Quiet control
This command enables or disables sending messages from the INSYS Modem 56k small
EU 2.1 to the application.
ATQ0 Send messages to the application (default)
ATQ1 Don’t send messages to the application
AT%Q Displaying the quality of the telephone connection
Displays the quality of the data connection (deviation from the eye diagram). Low values indicate a good line quality. The line quality value must be evaluated differently
depending on the negotiated data rate.
Connections with more than 9600 baud will reach the value "000" for good lines and
should not have values of more than "010".
For connections with 33600 baud good lines will have values between 010…030. Depending on the settings and the modulation type a fall back or retrain is triggered if the
line quality is too bad to enable a new negotiation of the connection (if necessary with
a slower speed).
High values indicate bad quality. These values are constantly updated during a connection. If the value increases significantly during a connection, the quality will deteriorate.
After a previous AT%E command, an Autoretrain is performed.
AT&R RTS/CTS behaviour
This command determines how the modem treats the RTS/CTS (CT105/CT106) data
flow control lines (refer also to the command AT&K<n>).
AT&R0 CTS behaviour complies with V.25bis. CTS is deactivated during the
connection setup after recognition of the response or ringing tones and
will only be activated after the connection is set up.
AT&R1 CTS only switches to OFF when this is required by the data flow control
(default).
ATS<n> Reading/writing the S registry
Depending on the country settings, the S registers may only be changed within certain
limits. The INSYS Modem 56k small EU 2.1 still reports OK, although the value has not
changed as specified. We recommend checking the results after each write attempt,
using the ATS<n>? command.
ATS<n>=<x> Sets the S register n to the value x
ATS<n>? Shows the value of the S register n
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
AT&S DSR behaviour
This command determines how the INSYS Modem 56k small EU 2.1 treats its DSR
(CT107) output.
AT&S0 DSR always ON (default)
AT&S1 DSR ON after a response tone has been detected;
DSR OFF when no carrier is detected any more.
ATT Enabling the tone dialling method
Starting with this command, each dial up is performed with the tone dialling method,
until an ATP or ATDP command switches it back to pulse dialling.
AT-TRV Phone Line Voltage Measurement (Tip Ring Voltage)
Use the command AT-TRV to measure the phone line voltage (Tip Ring Voltage). The
result is yielded in volt. For an existing connection the voltage range is 5 V – 12 V. Otherwise the voltage is higher than 20 V. If the voltages are lower than 2 V, no phone line
is connected.
ATV<n> Format of modem messages
This command determines, whether the INSYS Modem 56k small EU 2.1 transfers messages to the application in short or long form.
ATV0 Messages in short format, i.e. only the error number
ATV1 Messages in long format, i.e. the error text (default)
AT\V<n> Format of connect rate messages
AT\V0 This command enables the display of the connect message in three
lines.
AT\V1 This command enables the display of the connect message in one
line. (default)
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INSYS Modem 56k small EU 2.1 AT Command Reference
Command Description
AT&V<n> Displaying the configurations
AT&V0 The active configuration of the modem, the saved user defaults and the
saved phone numbers 0 to 3 (the parameter 0 may be omitted) are displayed.
AT&V1 Displays the diagnostic data of the last connection (connection partner,
reason for disconnect):
TERMINATION REASON: Reason for disconnect.
e.g.: connection termination via command (ATH: "LOCAL REQUEST")
LAST TX rate: Last baud rate at the phone line in send direction,
prior to the termination.
HIGHEST TX rate: Highest baud rate that was achieved at the
phone line in send direction, prior to the termination.
LAST RX rate: Last baud rate at the phone line in receive direction,
prior to the termination.
HIGHEST RX rate: Highest baud rate that was achieved at the
phone line in receive direction, prior to the termination.
Note: The data rates may vary if a fall forward, fall back or retrain
occurred during the connection. To impact the negotiated data rate,
use the command AT+MS.
PROTOCOL: Displays the used error correction protocol. "LAPM" equals
a V.42 secured connection. For "NONE", the connection was not error
corrected (the error corrected can be influenced with the command
AT\N).
COMPRESSION: Displays the used data compression method. The ex-
ample shows the used compression method V.42bis (the compression
method can be set with the command AT%C).
LINE QUALITY: Displays the quality of the data connection (deviation
from the eye diagram). Low values indicate a good line quality. The line
quality value must be evaluated differently depending on the negotiated data rate.
Connections with more than 9600 baud will reach the value "000" for
good lines and should not have values of more than "010".
For connections with 33600 baud good lines will have values between
010…030. Depending on the settings and the modulation type a fall
back or retrain is triggered if the line quality is too bad to enable a new
negotiation of the connection (if necessary with a slower speed).
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
AT&V<n>
(Continuation)
AT+VCID=<n> Configuring CLIP
With this function, the phone number of the caller can be displayed during an incoming
call.
(Only for telephone connections or PABXs, which support CLIP. If you want to use the
CLIP function, please ask your network provider, if your connection supports this function.
The following countries support CLIP:
Australia, Belgium, China, Denmark, Germany, Finland, Great Britain, Hong Kong, India,
Ireland, Iceland, Italy, Canada, Korea, New Zealand, The Netherlands, Norway, Austria,
Sweden, Singapore, Spain, Taiwan, USA)
Rx LEVEL: Displays the receive level (which is internally applied at the
modem chip) in –dBm. High values indicate a low input level; low values indicate a high input level. The optimum receive levels range from
approx. 012 to 028. To high levels could cause distortions; too low levels
will cause the line noise to have a negative impact on the connection
quality.
Local Rtrn Count: Number of retrains (renegotiation of the connection), triggered by the local modem.
Remote Rtrn Count: Number of retrains (renegotiation of the connection), triggered by the remote modem.
AT+VCID=0 Disables the CLIP function (default)
AT+VCID=1 Enables the CLIP function and displays the ID preformatted for calls.
AT+VCID=2 Enables the CLIP function and displays the ID unformatted for calls.
AT+VRID=<n> Configuring the last received CLIP
The command AT+VRID displays the CLIP of the last caller.
AT+VRID=0 displays the ID preformatted
AT+VRID=1 displays the ID unformatted
ATW<n> Error correction messages
This command determines which data transmission rate information is provided for a
CONNECT message.
ATW0 The INSYS Modem 56k small EU 2.1 reports the baud rate between IN-
SYS Modem 56k small EU 2.1 and application. (default)
ATW1 During connection establishment, the INSYS Modem 56k small EU 2.1
reports the speed on the phone line, the error correction protocol and
the baud rate of the application.
ATW2 The INSYS Modem 56k small EU 2.1 reports the speed on the phone line.
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INSYS Modem 56k small EU 2.1 AT Command Reference
Command Description
AT&W<n> Saving the configurations
The command saves the current modem configuration including the S registry in one of
the two user-defined defaults.
AT&W0 Save to user default setting 0
AT&W1 Save to user default setting 1
ATX<n> Extended result messages,, dial tone detection
The command determines, which message group is sent to the PC by the INSYS Modem
56k small EU 2.1. This is important for PABXs, as a leading 0 or 9 must often be dialled
before a dialling tone is heard on the line. Blind Dialling (dialling without detecting the
dialling tone) is activated or deactivated according to the parameter. The detection of
the dialling tone, however, can always be enforced using the parameter W in the ATD
dialling string (refer to the command ATD).
ATX0 No detection of the dialling tone, i.e. an unsuccessful dialling attempt
leads to the message NO CARRIER.
No detection of the busy signal, i.e. when calling a busy line the mes-
sage NO CARRIER is displayed. The message is displayed without specifying the speed.
ATX1 Like ATX0, but CONNECT message with speed information
ATX2 Dialling tone detection is active, i.e. a dialling attempt without the pres-
ence of a dialling tone leads to the message NO DIALTONE.
No detection of the busy signal, i.e. when calling a busy line the mes-
sage NO CARRIER is displayed.
ATX3 No detection of the dialling tone, i.e. an unsuccessful dialling attempt
leads to the message NO CARRIER.
Busy signal detection active, i.e. when calling a busy line the message
BUSY is displayed.
ATX4 Dialling tone detection is active, i.e. a dialling attempt without the pres-
ence of a dialling tone leads to the message NO DIALTONE. (default)
Busy signal detection active, i.e. when calling a busy line the message
BUSY is displayed.
AT&Y<n> Selecting the user configuration for a hardware reset
AT&Y0 For a hardware reset following the AT&Y0 command, the user default 0
(created using the AT&W0 command) is loaded into the current modem
configuration.
AT&Y1 For a hardware reset following the AT&Y1 command, the user default 1
(created using the AT&W1 command) is loaded into the current modem
configuration.
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AT Command Reference INSYS Modem 56k small EU 2.1
Command Description
ATZ<n> Software reset
The command causes the INSYS Modem 56k small EU 2.1 to perform a software reset.
The INSYS Modem 56k small EU 2.1 loads (depending on parameter) the default setting
saved by the user. If no parameter is specified, the user default 0 is loaded.
ATZ0 Software reset; afterwards the user default 0 is loaded.
ATZ1 Software reset; afterwards the user default 1 is loaded.
AT&Z<n> Saving telephone numbers
The command saves four entries permanently in the EEPROM. Each entry may consist
of up to 35 characters. The entries may be overwritten and must comply with the dialing string as described in the ATD command.
AT&Z<n>=xxx n Is the number of the entry in the list (from 0 to 3).
xxx Is the dialling string with the phone number.
<Pause> +++
<Pause>
Changing from data mode to command mode (online command mode)
1 second pause before and after the entry, no Carriage Return - <CR> -. After the response "OK", an additional waiting period of 1 seconds for the re-entry of AT commands
must be observed.
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INSYS Modem 56k small EU 2.1 AT Command Reference
15.2 AT Messages
List of message numbers and messages texts depending on the ATX command.
Message no.
short form
+F4 +FCERROR X X X X X
0 OK X X X X X
1 CONNECT X X X X X
2 RING X X X X X
3 NO CARRIER X X X X X
4 ERROR X X X X X
5 CONNECT 1200 1 X X X X
6 NO DIAL TONE 3 3 X 3 X
7 BUSY 3 3 3 X X
8 NO ANSWER 1 X X X X
9 CONNECT 600 1 X X X X
10 CONNECT 2400 1 X X X X
11 CONNECT 4800 1 X X X X
12 CONNECT 9600 1 X X X X
13 CONNECT 7200 1 X X X X
14 CONNECT 12000 1 X X X X
15 CONNECT 14400 1 X X X X
16 CONNECT 19200 1 X X X X
17 CONNECT 38400 1 X X X X
18 CONNECT 57600 1 X X X X
19 CONNECT 115200 1 X X X X
20 CONNECT 230400 X X X X X
22 CONNECT 75TX/1200RX 1 X X X X
23 CONNECT 1200TX/75RX 1 X X X X
24 DELAYED 4 4 4 4 X
32 BLACKLISTED 4 4 4 4 X
33 FAX X X X X X
35 DATA X X X X X
40 CARRIER 300 X X X X X
44 CARRIER 1200/75 X X X X X
45 CARRIER 75/1200 X X X X X
46 CARRIER 1200 X X X X X
47 CARRIER 2400 X X X X X
48 CARRIER 4800 X X X X X
49 CARRIER 7200 X X X X X
50 CARRIER 9600 X X X X X
51 CARRIER 12000 X X X X X
52 CARRIER 14400 X X X X X
53 CARRIER 16800 X X X X X
Message text in long form
ATX<0> ATX<1> ATX<2> ATX<3> ATX<4>
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AT Command Reference INSYS Modem 56k small EU 2.1
Message no.
short form
54 CARRIER 19200 X X X X X
55 CARRIER 21600 X X X X X
56 CARRIER 24000 X X X X X
57 CARRIER 26400 X X X X X
58 CARRIER 28800 X X X X X
59 CONNECT 16800 1 X X X X
61 CONNECT 21600 1 X X X X
62 CONNECT 24000 1 X X X X
63 CONNECT 26400 1 X X X X
64 CONNECT 28800 1 X X X X
66 COMPRESSION: CLASS 5 X X X X X
67 COMPRESSION: V.42 bis X X X X X
69 COMPRESSION: NONE X X X X X
70 PROTOCOL: NONE X X X X X
77 PROTOCOL: LAP-M X X X X X
78 CARRIER 31200 X X X X X
79 CARRIER 33600 X X X X X
80 PROTOCOL: ALT X X X X X
81
84
91
150
151
152
153
154
155
156
157
158
159
160
161
162
165
166
167
168
169
170
171
172
173
Message text in long form
PROTOCOL: ALT-CELLULAR
CONNECT 33600
CONNECT 31200
CARRIER 32000
CARRIER 34000
CARRIER 36000
CARRIER 38000
CARRIER 40000
CARRIER 42000
CARRIER 44000
CARRIER 46000
CARRIER 48000
CARRIER 50000
CARRIER 52000
CARRIER 54000
CARRIER 56000
CONNECT 32000
CONNECT 34000
CONNECT 36000
CONNECT 38000
CONNECT 40000
CONNECT 42000
CONNECT 44000
CONNECT 46000
CONNECT 48000
ATX<0> ATX<1> ATX<2> ATX<3> ATX<4>
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
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INSYS Modem 56k small EU 2.1 AT Command Reference
Message no.
short form
174
175
176
177
178
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
Table 7: AT responses depending on the ATX command
Message text in long form
CONNECT 50000
CONNECT 52000
CONNECT 54000
CONNECT 56000
CONNECT 230400
CARRIER 28000
CARRIER 29333
CARRIER 30667
CARRIER 33333
CARRIER 34667
CARRIER 37333
CARRIER 38667
CARRIER 41333
CARRIER 42667
CARRIER 45333
CARRIER 46667
CARRIER 49333
CARRIER 50667
CARRIER 53333
CARRIER 54667
ATX<0> ATX<1> ATX<2> ATX<3> ATX<4>
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
X X X X X
Notes regarding the table:
An X in the column indicates that a message is either sent in long or short form
(depending on the ATV command. In the topmost line, the characters 0 to 4 each
indicate the parameters for the commands ATX0 to ATX4.
If there is a number in a column, this indicates that an error message is displayed
according to the error number.
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S Registry INSYS Modem 56k small EU 2.1
16 S Registry
S registers may be read and written using the ATS<n> command. (Refer also to
the AT Command Reference). Certain S registers may only be read; others only allow to enter a particular range of values.
If the range of values is exceeded, the modem will report OK, although the value
was not accepted. We therefore recommend to immediately check modifications
by reading (ATS<n>?).
Note:
* These registries are stored in the user defaults with AT&W0 or AT&W1.
** The defaults can differ depending on the configured country code.
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INSYS Modem 56k small EU 2.1 S Registry
16.1 Overview S Registry
Register Function Units Range Default
S0* Number of ringing tones until automatically going off-
hook
S1 Ring tone counter Ringing
S2* Escape ASCII 0-255 43
S3 Return ASCII 0-127 13
S4 Line feed character ASCII 0-127 10
S5 Backspace character ASCII 0-255 8
S6* Waiting period for dial tone s 3-7 3
S7* Waiting period for carrier signal s 0-100 50
S8* Dial tone delay s 1-7 2
S9* Reaction time for carrier signal 0.1 s 1-255 6
S10* Time period between lost carrier signal and hang up 0.1 s 14-254 14
S12* Transmission clock of the ESC characters 0.02 s 0-255 50
S14* General settings 138
S21* Settings for V24 52
S22* Settings 117
Ringing
tones
tones
0-5 5
0-255 0
S24* Time period until switching into sleep mode s 0-255 0
S25 Time period for DTR signal 0.01 s 0-255 5
S26 Time period between RTS/CTS 0.01 s 0-255 1
S27* General settings - 137
S29 Time period for modifier “flash” 10 ms 0-17 0
S30 Time period until hang up due to silence 10 s 0-255 0
S31* General settings - 192
S36* Reset of error logs - 135
S38 Time period until forced hang up s 0-255 20
S39* Flow control - 3
S40* General settings - 104
S41* General settings - 195
S46* Data compression - 138
S48* Setting for V42 declaration phase - 7
S86 Error event code - Read-only
S91* Transmit level 0-15 9
S95* Result code 0
Table 8: Overview S Registry: Units, value range, presets
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S Registry INSYS Modem 56k small EU 2.1
16.2 Description S Registry
Note: Registries marked with *) are stored in the user defaults with the command
AT&W.
S0* Number of ringing tones until automatically going off-hook
Number of rings until the modem goes off-hook
For S0=0 the modem will not go off-hook when a call comes in. The value of S0
can be between 0 and 5.
S1 Ring tone counter
Counter for call ringing. S1 is read-only. S1 will be reset to zero, when the modem
answers a call.
S2* Escape
Escape character, which causes a switch from data mode to online command in-
put mode. Values larger than 127 will lead to the fact that no ESC character will be
recognized.
S3 Return
Carriage Return Character (CR).
S4 Line feed character
Line feed character
S5 Backspace character
Backspace character
S6* Waiting period for dial tone
Maximum waiting time for the dialling tone. After the modem went off-hook it
waits 7 seconds for the dialling tone (fixed for approval purposes). If it detects a
dialling tone during this waiting period it will start dialling.
If it does not detect a dialling tone, it will check if dial tone recognition is activated
or if the dialling string (Section "AT Command Set", command ATD) contains the
parameter W. If the dialling tone detection is not activated, the modem waits for
the dialling tone.
The value of the S6 register can be between 4 and 7 seconds.
S7* Waiting period for carrier signal
Wait for the carrier frequency from the other modem. The maximum time for the
modem to wait for a response from the other modem is specified in S7. The time
starts running as soon as the modem has finished dialling. The value of S7 can be
between 0 and 180 seconds.
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INSYS Modem 56k small EU 2.1 S Registry
S8* Dial tone delay
Dial pause time, if a comma is included in the dialling string. If there is a comma in
the dialling string, the modem will wait during the dialling procedure, until the
time specified in S8 (in seconds) has expired. The value of S8 can be between 1
and 7 seconds.
S9* Reaction time for carrier signal
DCD response time for the carrier frequency from the other modem. The DCD
output of the RS232 interface (CT109) of the modem switches to ON, when the
carrier frequency from the other modem is detected before the time defined in S9
(in tenth of seconds) expires. S9 must be smaller than S10.
S10* Time period between lost carrier signal and hang up
The time which leads to termination after carrier frequency loss. In S10, the time
period for which the modem waits for the disconnection if it can no longer detect
the carrier frequency from the other modem, is specified in tenth of seconds.
S12* Transmission clock of the ESC characters
Minimum pre and post run time and maximum interim time in 1/50 of seconds
between two characters. This must be observed, if the modem is supposed to detect an abort sequence (usually +++).
S14* General settings
Bit Meaning
Bit 0 Reserved
Bit 1 Echo on inputs Command echo 0: Echo off
1: Echo on
Bit 2 Reserved
Bit 3
Bit 4
Bit 5
Bit 6 Reserved
Bit 7 Originate/answer Originate/answer 0: Answer mode
Result format
Reserved
Tone/pulse dialling
Result codes: 0: Message numbers (ATV0)
1: Message texts (ATV1)
Tone/pulse 0: Tone dialling (ATT)
1: Pulse dialling (ATP)
1: Originate mode
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S Registry INSYS Modem 56k small EU 2.1
S21* Settings for V24
Bit Meaning
Bit 0,1 Reserved
Bit 2 CTS behaviour
Bit 3-4 DTR behaviour CT108 (DTR) behaviour:
Bit 5 DCD behaviour
Bit 6 DSR behaviour
Bit 7 Reserved Reserved
CT106 (CTS) behaviour:
0: like AT&R0
1: like AT&R1
0: like AT&D0
1: like AT&D1
2: like AT&D2
3: like AT&D3
CT109 (DCD) behaviour
0: like AT&C0
1: like AT&C1
CT107 (DSR) behaviour
0: like AT&S0
1: like AT&S1
S22* Speaker system settings
Bit Meaning
Bit 0,1 Speaker volume Speaker volume:
0: Off (ATL0)
1: Silent (ATL1)
2: Medium (ATL2)
3: Loud (ATL3)
Bit 2-3 Speaker control Speaker control:
0: Off (ATM0)
1: On until carrier (ATM1)
2: Always on (ATM2)
3: On at establishing
Bit 4-6 Error message group Limit result codes:
0: like ATX0
4: like ATX1
5: like ATX2
6: like ATX3
7: like ATX4
Bit 7 Reserved Reserved
S24 Time period until switching into sleep mode
The time after which the modem switches to energy conservation mode (sleep)
during inactivity is determined (in seconds) in S24. The energy conservation mode
will be quit as soon as characters are sent to the modem, or when a call comes in.
Note: When the modem is in sleep mode, it is necessary to send an
"AT" command before sending other commands. This first "AT"
command may not be answered with "OK". Further AT commands may be entered immediately.
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INSYS Modem 56k small EU 2.1 S Registry
S25 Time period for DTR signal
Time period, in which a modem waits without a DTR signal before it hangs up
(1/100 seconds).
S26 Time period between RTS/CTS
Time period between RTS and CTS activation in 1/100 seconds.
S27* General settings
Bit Meaning
Bit 0-3 RS232 mode Asynchronous mode selection:
0: like AT&M0 or AT&Q0
9: like AT&Q5
10: like AT&Q6
Bit 4,5 Reserved
Bit 6 CCITT or Bell modulation CCITT/Bell select
Bit 7
Reserved Reserved
0: CCITT modulation
1: Bell modulation
S29 Time period for modifier "flash"
Sets the time period in tenths of seconds, after which the modem hangs up due to
a flash in the dialling string.
S30 Time period until hang up due to silence
Time period, in which the modem waits without activity before hanging up. Units
in seconds (only for FAX Class 1).
S31* General settings
Bit Meaning
Bit 0 Reserved
Bit 1 Representation
Connect message
Bit 2-3 Error correction
messages
Bit 4-7 Reserved
0: 3-line message (\V0)
1: Extended single-line message (\V1)
Messages:
0: Only PC baud rate
1: PC and phone baud rate (ATW1)
2: Only phone baud rate (ATW2)
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S Registry INSYS Modem 56k small EU 2.1
S36* Resetting the error logs
Bit Meaning
Bit 0..2 Determines what happens
if an attempt to establish a
V.42 LAP-M connection
fails. It is connected to the
registry S48.
Bit 3..7 Reserved Reserved
0 Modem hangs up
1 Modem stays online and establishes a direct
mode connection.
2 Reserved
3 Modem stays online and establishes a normal
mode connection.
4 Modem attempts to establish an MNP connec-
tion. In case of failure it hangs up.
5 Modem attempts to establish an MNP connec-
tion. In case of failure a direct mode connection
is established.
6 Reserved
7 Modem attempts to establish an MNP connec-
tion. In case of failure a normal mode connection is established.
S38 Time period until forced hang up
Maximum time left for the buffers to empty their data, after a command to hang
up has been received. Only applies to error corrected connections.
S39* Flow control
Selection of the data flow control between PC and modem
S39=0 No data flow control (AT&K0)
S39=3 RTS/CTS data flow control (AT&K3)
S39=4 XON/XOFF data flow control (AT&K4)
S39=5 Transparent XON data flow control (AT&K5)
S39=6 RTS/CTS and XON/XOFF data flow control
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INSYS Modem 56k small EU 2.1 S Registry
S40* Break handling and MNP5 block size
Bit Meaning
Bit 0 Reserved
Bit 1 Reserved
Bit 2 Reserved
Bit 3-5 Break handling Break handling
0: like AT\K0
1: like AT\K1
2: like AT\K2
3: like AT\K3
4: like AT\K4
5: like AT\K5
Bit 6-7 MNP block size MNP block size
0: 64 characters (AT\A0)
1: 128 characters (AT\A1)
2: 192 characters (AT\A2)
3: 256 characters (AT\A3)
S41* Compression settings: Compression type, retrain
Bit Meaning
Bit 0,1 Select compression type Compression selection
0: No compression (AT%C0)
1: MNP5 (AT%C1)
2: V.42bis (AT%C2)
3: MNP5 or V.42bis (AT%C3)
Bit 2 Auto retrain Auto retrain control
0: No auto retrain (AT%E0)
1: Auto retrain (AT%E1)
Bit 3 Reserved
Bit 4 Reserved
Bit 5 Reserved
Bit 6 Fall back/fall forward FB/FF control
0: No FB/FF
1: FB/FF (AT%E2)
Bit 7 Reserved
S46* V.42bis data compression
S46=136 No data compression
S46=138 V.42bis data compression on
S48* V.42bis Connection setup protocol
S48=0 Only LAPM connection possible
S48=7 LAPM or MNP 4 connection
S48=128 Connection protocol as laid down in S36
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S Registry INSYS Modem 56k small EU 2.1
S86 Error event code
When a connection fails (NO CARRIER), an event code is written into this regis-
ter.
S86=0 Normal disconnect, no error
S86=4 Carrier lost
S86=5 No establishing of an error-corrected (V.42) connection
S86=6 No extensions could be negotiated
S86=7 Remote terminal only supports synchronous modems
S86=8 No joint framing detected
S86=9 No protocol could be established
S86=10 Invalid answer when negotiating extensions
S86=11 No synchronous marks received from remote terminal
S86=12 Normal disconnection by remote terminal
S86=13 Remote terminal didn’t respond any more (ten attempts)
S86=14 Protocol error
S86=15 DTR drop
S86=16 Remote terminal demanded cleardown (GSTN cleardown)
S86=17 Inactivity timer expired
S86=18 Desired speed is not supported
S86=19 Long space disconnect
S86=20 Key abort (character was sent during connection setup)
S86=22 No connection setup possible
S86=23 Cleardown after 3 retrains
S86=25 Termination of the connection by the remote terminal or by a phone
connected in series
S86=26 Remote terminal hung up
S91 Transmit level
The value for the transmit level of the modem is stored in the S91 register. The
value can be configured between 0 and 15. The connection can in some cases be
improved by decreasing the transmit level.
S91=0 Transmit level -1 dBm
S91=15 Transmit level -16 dBm
Note: The range and the default value depend on the country settings
(AT+GCI)
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INSYS Modem 56k small EU 2.1 S Registry
S95 Result code
Bit Meaning
Bit 0 CONNECT message with line speed
Bit 1 CONNECT/ARO message for error corrected connection
Bit 2 CARRIER messages enabled (messages 40 – 47)
Bit 3 PROTOCOL messages enabled (messages 70 – 80)
Bit 4 Reserved
Bit 5 COMPRESSION message enabled (messages 66 - 69)
Bit 6 Reserved
Bit 7 Reserved
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Tables and Diagrams INSYS Modem 56k small EU 2.1
17 Tables and Diagrams
17.1 List of Tables
Table 1: Technological Features ..........................................................................................................10
Table 2: Meaning of the LED displays ................................................................................................12
Table 3: Description of the connections on the top of the device.............................................13
Table 4: Description of the pin allocation of the sub-D jack.......................................................14
Table 5: Layout description of the RJ12 and TAE plugs ................................................................15
Table 6: Description of the functions on the HSComm tab "Modem" .....................................27
Table 7: AT responses depending on the ATX command.............................................................63
Table 8: Overview S Registry: Units, value range, presets ...........................................................65
17.2 List of Diagrams
Figure 1: LEDs on the front panel.......................................................................................................12
Figure 2: Connections on the front panel of the device ...............................................................13
Figure 3: 9-pin sub-D jack at the device............................................................................................14
Figure 4: RJ12 jack connected to TAE jack ........................................................................................15
Figure 5: HSComm Modem - Tab Modem........................................................................................26
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INSYS Modem 56k small EU 2.1 Index
18 Index
Accessories ..................................................... 8
Additional information .............................17
Alternative results......................................17
Answer mode...............................................45
AT command................................................24
AT commands..............................................28
AT response ..................................................63
Backspace character ........................... 65, 66
Baud................................................................50
Baud rate detection ...................................16
Bit direct mode............................................16
Break........................................................45, 50
Carriage return character.........................66
Checkmark....................................................17
CLIP..................................................................58
Command .....................................................50
Command input..........................................24
Command mode ........................... 28, 29, 60
Compression type.......................................71
Configurations......................................57, 59
Country code................................................49
CTS ..................................................................68
Data ......................................................... 48, 50
Data compression......................... 45, 65, 71
Data connection..........................................28
Data flow control........................................16
Data mode ....................................................60
Date buffer ...................................................16
DCD..........................................................45, 68
Default...........................................................49
Dial tone................................................. 29, 66
Dial tone delay...................................... 47, 67
Dial tone detection.....................................59
Dialling...........................................................46
DSR behaviour .............................................56
DTR....................................................48, 68, 69
DTR signalling..............................................28
Echo ................................................................49
Energy conservation mode ......................68
Error ................................................................54
Error correction.....................................16, 58
Error correction protocols ........................16
Error event code ..........................................72
ESC character ........................................65, 67
Escape character .........................................66
Escape sequence .........................................28
Extended result messages........................59
Factory settings...........................................40
Firmware .......................................................41
Flow control..................................................70
Forced hang-up............................................70
Formattings..................................................17
Guidelines .....................................................11
Hang-up.........................................................67
Hardware data flow control ....................28
Hardware handshake ................................41
HSComm........................................................25
Identification................................................49
Input ...............................................................47
Level................................................................52
Line feed character.....................................65
Message numbers ......................................60
Message texts..............................................60
MNP ................................................................16
MNP5..............................................................71
Modulation .....................................52, 53, 54
Online.............................................................54
PABX................................................................48
Phone line......................................................28
Pick up............................................................29
Prerequisites.................................................17
Pulse dialling ................................................28
Pulse dialling method................................55
Reaction time for carrier signal ..............67
Recycling........................................................43
Redial..............................................................47
Repurchasing ...............................................43
Reset ........................................................59, 60
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Index INSYS Modem 56k small EU 2.1
Reset terminal .............................................40
Result code ...................................................73
Retrain ....................................................49, 71
Ring tone................................................ 28, 30
Ring tone counter................................ 65, 66
Ringing...........................................................48
RS232 mode .................................................69
RTS/CTS...................................................69, 70
RTS/CTS behaviour.....................................55
S Registry................................................ 55, 64
Saving telephone numbers......................60
Serial port......................................................24
Sleep mode................................................... 68
Software reset .............................................60
Speaker ...................................................51, 52
Standards......................................................11
Symbols .........................................................17
Telephone connection quality ................55
Telephone system.......................................29
Terminal program.........................24, 28, 41
Terminating..................................................49
Tone dialling.................................................28
Tone dialling method.................................56
Transmission ................................................49
Transmit level ..............................................72
Update ...........................................................41
Usage................................................................9
User configuration......................................59
User interface...............................................26
User profile ............................................39, 40
V.42 .................................................................16
V.42bis..............................................16, 48, 71
V.44 ..........................................................16, 48
Waiting period for carrier signal ............66
Waiting period for dial tone ....................66
XON/ XOFF....................................................16
XON/XOFF.....................................................70
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