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gsm-m1-e.fm

GSM M1 Module, English: A24859-N4000-A100-1-7677

6.3.96

Technical reference section

With the development of intelligent modems, an command language was introduced
in the U.S. called the AT standard. Over the past few years, this language has been con-
sistently enhanced and has gained international acceptance. Most modems and com-
munication programs work with this command language or can be set to use it.

The AT standard is a line-oriented command language. Each command line must begin
with the letters AT, with the sole exception of the A/ command. The commands are in-
troduced at the end of this section. The letters AT are also known as the attention code.
The attention code signals your GSM module that one or more commands will follow.
The GSM module examines this command line prefix.

You have connected your GSM module to your PC. You can now connect to your GSM
module. To do so, start up a communication program on your PC.

Set the following transmission parameters (characteristics):

COM interface:

1 - 4, depending on which one the M1 is connected to

Rate:

2400 - 19200 baud

Data bits:

8

Parity:

None

Stop bits:

1

Duplex:

Full

The GSM module supports autobauding on the V.24 interface with transfer rates from
2400 to 19200 baud and the data format 8N1.

• Command lines must always begin with AT.

• Multiple commands can be combined on one command line. To improve legibility,

you can enter spaces between the individual commands. The GSM module ignores
these spaces.

• Commands that are specified in this manual with "0" in the last position can also be

entered without this "0". Example: ATQ has the same effect as ATQ0.

• A command line must end with a <CR> character, which is entered by pressing "En-

ter" on the keyboard. This fact will not be mentioned again in this manual.

The AT standard

AT command line prefix

Connecting to your GSM module

Command syntax of the AT standard

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Summary of Contents for Gigaset M1 professional

Page 1: ... User Guide SMS V 24 Fax Data GSM Module M1 ...

Page 2: ...age undervoltage 8 Protection on board network connection 8 Power consumption 8 Setting testing the COM interface 8 Setting the GSM radio transfer rate 9 Registering in the GSM network PIN entry 10 Setting up and clearing down connections 10 Troubleshooting 11 GSM module can still be accessed 11 Connection cannot be set up 12 Own errors 12 System errors 12 Incorrect characters on screen 13 GSM mod...

Page 3: ...22 Valid dial strings 22 ATDL Redial last telephone number used 22 AT Dn Automatic dialing with DTR 23 ATA Answer a call 23 ATS0 n Auto answer mode 24 Displaying and storing a configuration 24 AT F Load factory profile 25 AT V Display configuration 25 Configuring the module using AT commands 26 Screen outputs 26 Limits of screen outputs 26 ATEn Command echo 26 ATQn Activate and deactivate result c...

Page 4: ...gle numbering parameterization 44 AT CXXMOC Parameterize for outgoing calls 46 AT CPBS Select phonebook memory storage 47 AT CPBR Read phonebook entries 48 AT CPBW Write phonebook entry 49 AT CBST Select bearer service type 50 AT CRC Cellular result code 51 AT CLIP Calling line identification presentation 52 AT CPAS Phone activity status 53 AT FCLASS Select mode 54 AT CXXCID Card identification 55...

Page 5: ...he S registers 65 AT Tn Test functions 68 AT T0 Terminate an active test 68 AT T1 Initiate local digital test loop 68 ATIn Display GSM module I data 69 Technical data General 70 V 24 interface 70 Hybrid connector manufacturer specific 71 GSM modes 72 Fax 72 Data 72 SMS 72 GSM documentation GSM reference documents 73 ETSI contact 73 General information CE Sign 74 Service 74 ...

Page 6: ...owing features Transparent data transmission at 2400 4800 and 9600 bps BS24 25 26 Group 3 Class 2 fax transmission conforming to TR 29 2 at 2400 4800 7200 and 9600 bps Short message service mobile originated SMS MO TS22 Short message service mobile terminated SMS MT TS21 The GSM Module M1 conforms to GSM standards However note that the device can still emit radiation and therefore must not be used...

Page 7: ...d SMS transmission Connector 9 pin DSUB female conforming to DIN 41652 Pin assignment See the section entitled Technical data Logic V 24 asynchronous Baud rates 2400 19200 baud autobauding Parity None Character format 8 data bits Stop bits 1 Level Conforming to CCITT Recommendation V 28 The hybrid connector contains the power supply ignition for switching the device on and off and the connection f...

Page 8: ...res are marked as follows Red POWER 8 V 24 V DC Violet IGNITION ON OFF Brown GND Ground The GSM Module M1 switches on when a positive voltage of 5 24 V is applied to IG NITION if a voltage of 8 24 V is simultaneously applied to POWER The module switches off when a voltage of less than 1 V is applied to IGNITION An existing call is correctly disconnected This voltage must be applied for a minimum o...

Page 9: ...nce this could result in a short circuit via the antenna cable In order to control the GSM Module M1 and transfer data via the serial interface COM port the interface parameters must be set The parameters settings are as follows COM port 1 4 depending on which one the M1 was connected to Baud rate 2400 19200 baud autobauding Data bits 8 Parity None corresponds to 8N1 Stop bits 1 Duplex Full For in...

Page 10: ... the GSM module s data functionality is operating correctly The transfer rate baud rate via the radio interface can be set for example using a ter minal program The ATBn command allows you to set the transfer rate in the GSM net work Enter the ATI8 command to display the current list Example Enter ATB13 M1 Permanently switches mode to 9600 bit s Enter ATB7 M1 Permanently switches mode to 2400 bit ...

Page 11: ... be en tered to unblock the device You are allowed 3 attempts to enter your PIN If you enter the wrong PIN 3 times in a row the PIN is blocked and must be unblocked by means of a PUK PIN UNBLOCKING KEY You are allowed 10 attempts You can enter the PUK any number of times for the network link and service operator link Example Enter AT CPIN Queries the password to be entered GSM module CPIN SIM PIN ...

Page 12: ...r more information see Technical reference sec7tion As long as the GSM module is still responding to commands you can enter the AT F0 command to load the factory configuration In any case this will permit further opera tion Check whether the communication program is configured for the serial interface to which the GSM module is connected Check the parameters of your communication program The follo...

Page 13: ...is not answered within 60 seconds after dialing because the distant station is not ready is not a modem does not support the selected operating mode The GSM module returns NO CARRIER The distant station is busy The GSM module returns BUSY Before the connection can be set up the GSM module receives a signal from the computer and returns NO CARRIER If no connection is set up the GSM module goes on h...

Page 14: ...the GSM module off and then on Cause Some fax programs that support TR 29 2 Class 2 expect the bits of the fax code to arrive in an order different from the one defined in the SP2388 specification If the GSM module transmits the fax data bits to the computer in the wrong order the fax program cannot receive whole fax pages For this reason the GSM module has been equipped with the AT FOPT n command...

Page 15: ...ATS0 n Go off hook after n th ringing signal n 1 5 ATS0 0 No automatic answering of calls ATV0 Display result codes as digits ATV1 Display result codes as text ATX0 Display connection without baud rate Ignore busy signal ATX1 Display connection with baud rate Ignore busy signal ATX2 Same as ATX1 ATX3 Same as ATX1 but report BUSY ATX4 Same as ATX3 ATZn Load user profile n AT C0 DCD always ON AT C1 ...

Page 16: ...XSN Single numbering parameterization AT CXXMOC Parameterize for outgoing calls AT CPBS Select phonebook AT CPBR Read phonebook entry AT CPBW Write phonebook entry AT CBST Select bearer service type AT CRC Cellular result code AT CLIP Calling line identification presentation AT CPAS Phone activity status AT FCLASS Select mode AT CXXCID Card identification AT CSMS Select message service AT CPMS Pre...

Page 17: ...ct to your GSM module To do so start up a communication program on your PC Set the following transmission parameters characteristics COM interface 1 4 depending on which one the M1 is connected to Rate 2400 19200 baud Data bits 8 Parity None Stop bits 1 Duplex Full The GSM module supports autobauding on the V 24 interface with transfer rates from 2400 to 19200 baud and the data format 8N1 Command ...

Page 18: ...Enter AT F0 M1 returns OK Enter AT V M1 Loads the factory configuration and transfers it to the PC The settings are displayed on the screen The GSM module acknowledges all commands Example Enter AT F0 M1 returns OK The ATVn command allows you to determine whether result codes will appear as al phanumeric text or a numerical code Loading the factory configuration and displaying a configuration ATVn...

Page 19: ...eats the dial command Example Enter AT D 01999341 GSM module BUSY Enter A GSM module Reissues the command D 01999341 Overview of the short and long result code formats Short code Long code Meaning 0 OK Command executed no error 1 CONNECT Connection set up 2 RING Ringing signal detected 3 NO CARRIER Connection not set up or disconnected 4 ERROR Incorrect command or command too long The AT CMEE 2 co...

Page 20: ...commands and if a phone con nection is present are not transferred to the distant station In transparent mode the GSM module transfers every character sent and received via the COM interface just as it is Before attempting to dial your first call you must know how to interrupt or disconnect a call at any time This involves the following two steps Enter to switch to command mode Disconnect the call...

Page 21: ...to interrupt the data flow only briefly you can use the ATOn command to return your GSM module to transparent mode i e the data flows once again The GSM module supports the following transfer rates To change and permanently set the rate for the radio link use the ATBn command ATH Go on hook ATOn Return to transparent mode ATOn n 0 Option Result ATO0 Switches the GSM module back to transparent mode...

Page 22: ...ections Example Enter ATB13 GSM module Permanently switches the mode to 9600 bit s with the result that all radio connections are permanently set to a transfer rate of 9600 bit s Enter ATB99 GSM module Automatically changes to the rate of the COM interface ATBn Select GSM module s operating mode ATBn n 7 11 13 25 27 29 70 99 Option Result Bit s Synchronism Distant station ATB99 Automatically sets ...

Page 23: ... telephone number ATDix and causes the GSM module to switch to ISDN mode for this call This character must be located at the beginning of a dial string and serves to access the international exchange of a GSM network Example You are in Sweden and wish to set up a connection to Munich Dial ATD 4989 telephone number A dial string must contain no more than 30 characters A longer string will not be di...

Page 24: ... control line connected to the COM interface to ON Example Enter AT Z0 123456789 Stores the telephone no 123456789 in telephone number memory 0 GSM Data_Module OK Telephone number has been stored Enter AT D1 Activates DTR dialing GSM module OK Command has been executed DTR is OFF DTR switches ON 123456789 is dialed automatically DTR switches OFF GSM module goes on hook ATDL Redial last telephone n...

Page 25: ...M1 allows you to modify the active con figuration profile by means of AT or S register commands These options will be de scribed in subsequent sections When you switch off the GSM module any changes you made to the active configuration profile are lost When you switch it on again the active configuration profile once again corresponds to the factory configuration How ever the GSM module has two no...

Page 26: ...E1 L2 M1 Q0 V1 X4 Y0 D0 C1 D2 G0 Y0 S00 000 S01 000 S02 043 S03 013 S04 010 S05 008 S06 002 S07 060 S08 002 S09 006 S10 007 S12 050 S14 6AH S16 00H S18 000 S21 30H S22 46H S23 1CH S25 005 S26 001 S27 00H 0 STORED PROFILE 0 B99 E1 L2 M1 Q0 V1 X4 Y0 C1 D2 G0 S00 000 S14 6AH S18 000 S21 30H S22 46H S23 1CH S25 005 S26 001 S27 00H x S27 00H STORED PROFILE 1 B99 E1 L2 M1 Q0 V1 X4 Y0 C1 D2 G0 S00 000 S1...

Page 27: ...ou to control the transmission of result codes as acknowl edgments to AT commands e g OK ERROR RING Configuring the module using AT commands Screen outputs Limits of screen outputs ATEn Command echo ATEn n 0 1 Option Result ATE0 Command echo off Select the ATE0 setting when the computer itself is echoing keyboard entries on the screen and no command echo is expect ed from the GSM module Please not...

Page 28: ...p For more information on extended result codes see the ATV1 command A busy signal is ignored ATX2 Same as ATX1 ATX3 As in the case of ATX1 the GSM module transmits an extended connect message A busy signal is detected and if applicable the BUSY code is returned ATX4 As in the case of ATX1 the GSM module transmits an extended connect message A busy signal is detected and if applicable the BUSY cod...

Page 29: ...r values are stored This section describes the val ues how to store them and how to use them AT Dn Data Terminal Ready DTR options AT Dn n 0 3 Option Result AT D0 The GSM module ignores the status of the DTR control line connected to the COM interface AT D1 When the DTR line switches from ON to OFF the GSM module changes to command mode The existing connection to the distant station is not cleared...

Page 30: ... string as though it were a telephone number entered directly via the keyboard Example Enter ATDS 0 GSM module 01999341 and initiates the dialing procedure When you modify the active configuration profile using AT or S register commands these modifications exist only in the RAM and are deleted when you switch off your GSM module When switched on again the GSM module loads the configuration from a ...

Page 31: ...ions TS GSM 07 07 for the general part and GSM 07 05 for SMS from the ETSI European Telecommunications Standards Institute Standardization is not yet com plete Some of the commands implemented in the GSM Module M1 may still be changed within the framework of the standardization process For the purpose of future compatibility these commands are always prefixed by CXX Example Enter AT CXXSN GSM modu...

Page 32: ...se CGMM M1 OK This command provides you with the version of the GSM module and the software cre ation date Example Enter AT CGMR GSM module CGMR Ver 02 001 10 08 95 OK AT CGMI Request manufacturer ID AT CGMI Option Result AT CGMI Displays manufacturer AT CGMM Request model ID AT CGMM Option Result AT CGMM Displays module name AT CGMR Request revision ID AT CGMR Option Result AT CGMR Displays the v...

Page 33: ...t call was disconnected The information returned can be useful if there were problems with connection setup or if a connection was interrupted AT CGSN Request product serial number ID AT CGSN Option Result AT CGSN Displays the serial number In GSM each mobile telephone is assigned a unique number known as the IMEI International Mobile Equipment Identity AT CHUP Hangup call AT CHUP Option Result AT...

Page 34: ...ore easily However you must first enable these messages from the PC using this command AT CMEE Report mobile equipment error AT CMEE Option Result AT CMEE mode n Resets the mode AT CMEE Displays the way in which error messages are reported to the PC AT CMEE Displays the modes supported by the M1 in the form of a complete list of the values that can be assumed by mode n mode n n 0 2 0 The error mes...

Page 35: ... Operation not allowed 4 Operation not supported 5 PH SIM PIN required 10 SIM not inserted 11 SIM PIN required 12 SIM PUK required 13 SIM failure 14 SIM busy 15 SIM wrong 16 Incorrect password 20 Memory full 21 Invalid index 22 Not found 23 Memory failure 24 Text string too long CPBW 25 Invalid characters in text string 26 Dial string too long 27 Invalid characters in dial string 30 No network ser...

Page 36: ...ation status are not forwarded to the PC CREG status status 0 3 STATUS n Meaning Explanation 0 Not registered ME is not search ing for a new oper ator No network operator found the GSM module cannot register nor is it searching for a new operator 1 Registered The GSM module has successfully registered in the network and all services are available 2 Not registered but ME is searching for a new oper...

Page 37: ... modem has selected this network operator automatically or whether you manually instructed it to select this operator A result code with the following format is returned in response to the AT COPS com mand AT COPS Operator selection AT COPS Command Result AT COPS Displays current network operator AT COPS Displays a list of network operators that are currently available via radio AT COPS mode n for...

Page 38: ...Sign off of network The GSM M1 is signed off of the network 3 Sets format f only You can select the format for displaying the network operator This is true only of the read command AT COPS format f n 0 2 0 Long alphanumeric format The operator is displayed in 16 character alpha numeric format 2 Numeric format The operator is displayed in numeric format Operator Network operator The network operato...

Page 39: ...tus n n 0 3 STATUS n Meaning Explanation 0 Unknown Status unknown 1 Available Network operator is available 2 Current This network operator is the one currently in use 3 Forbidden This network operator is forbidden Operator Network operator Displays the network operator in text format and numeric format AT COPS Use this network operator AT COPS mode n format f operator Mode n Mode n specifies how ...

Page 40: ...f functions When you query the status the system displays result codes relating to the chip card and tells you either that you must enter a PIN or that the chip card has already been read in which case PIN entry is unnecessary AT CPIN Enter PIN and query blocks AT CPIN Command Result AT CPIN Queries the PIN that must be entered AT CPIN PIN new PIN PIN entry The PIN can comprise up to 8 positions I...

Page 41: ...command you must first enter PIN2 If you have not yet done so an error message is returned After entering PIN2 you can read or write any number of directory entries without having to enter PIN2 each time As soon as you use a command that is not related to the phonebook PIN2 is forgotten It is also forgotten if you do not access the phonebook for a period of 5 minutes AT CPIN2 Enter PIN2 and query ...

Page 42: ...r AT CPWD sc 1234 4321 GSM module OK Password was successfully changed The following result code is returned if the old PIN you enter is incorrect Enter AT CPWD sc 0123 4321 GSM module CME ERROR INCORRECT PASSWORD The password was not changed because the old PIN was incorrect AT CPWD Change password AT CPWD Command Result AT CPWD Displays a list of the passwords supported These cur rently include ...

Page 43: ...Q 10 1 OK AT CSQ Signal quality AT CSQ Command Result AT CSQ Displays current receive values AT CSQ Displays a list of values representing receive levels and receive errors AT CSQ AT CSQ Command AT CSQ Result code CSQ receive level receive errors receive level 0 113 dBm or less 1 111 dBm 2 30 109 53 dBm 31 51 dBm or greater 99 Unknown or cannot be detected receive errors As a percentage See GSM 05...

Page 44: ...l AT CKPD Command Result AT CKPD key Instructs the GSM module to simulate the key key AT CKPD Displays a list of keys that are supported AT CKPD Command AT CKPD Result code CKPD 0123456789 CDEISUXYZ key Meaning of the keys 0 9 Key 0 9 C or c Clears the display E or e Simulates the End key I or i Simulates the Info key S or s Simulates the Start key X or x Phonebook key Y or y Deletes the last char...

Page 45: ...be reached via the fax service This means that your network operator supports multinumber ing You have received only one telephone number for the 9600 bit s data and fax ser vices This means that your network operator supports single numbering Single numbering is not supported in Germany When another party wishes to reach you your telephone must decide which service will answer the call before it ...

Page 46: ...0 The next incoming call will be answered by the voice service TS11 1 The next incoming call will be answered by the voice fax service This is required if your network operator supports only TS61 and not TS62 2 The next call will be answered by the fax or data service depend ing on the active application on your PC If a fax application is active the module answers the call as a fax call ...

Page 47: ... do this in networks that support only TS61 if you are to be able to send or receive faxes at all Example You wish to set the MOC mode to TS61 Enter AT CXXMOC 1 GSM module OK AT CXXMOC Parameterize for outgoing calls AT CXXMOC Command Result AT CXXMOC Displays value currently set for CXXMOC AT CXXMOC MOC mode Sets the single numbering receive mode to the relevant mode AT CXXMOC Displays a list of ...

Page 48: ...ebook is cur rently activated AT CPBS Displays a list of all the telephone directories supported AT CPBS Command AT CPBS Result code CPBS MD SM OW FD Meaning MD Last number redial memory displays the last telephone num bers that you dialed SM SIM card this is the standard phonebook containing the entries OW Own telephone number this phonebook contains your own telephone numbers under which you can...

Page 49: ...entries AT CPBR Command Result AT CPBR index1 index2 Reads the phonebook entry with the number index1 If you also enter a second index reads the phone book from index1 to index2 AT CPBR Provides you with information on the maximum number of entries that can be contained in the direc tory and the maximum size of these entries AT CPBR Command AT CPBR Result code CPBR index number length text length ...

Page 50: ... sought otherwise the entry is written to the specified position regardless of whether this position is already being used If you specify only an index without a number or text this means that you wish to delete the relevant entry Number Number to be written to the phonebook Type International 145 Other 129 Type of number can be omitted If no type is specified the type is automatically generated f...

Page 51: ...d Result AT CBST speed name ce Selects new speed name and ce AT CBST Displays speed name and ce AT CBST Displays list of supported speed list of supported name and list of supported ce Connection Ele ments speed n n 0 4 6 7 68 70 71 0 autobauding 4 2400 bps V 22bis 6 4800 bps V 32 7 9600 bps V 32 68 2400 bps V 110 70 4800 bps V 110 71 9600 bps V 110 name n n 0 0 asynchronous modem ce n n 0 0 trans...

Page 52: ...ited result code CRING type instead of the normal RING AT CRC Cellular result code AT CRC Command Result AT CRC Displays mode n AT CRC Displays a list of supported modes AT CRC mode n Selects a new mode AT CRC Command AT CRC Rsult Code CRC mode n mode n n 0 1 1 enables extendet format 0 disables extendet format CRING type type Meaning ASYNC asynchronous transparent FAX facsimile ...

Page 53: ...n enabled CLIP number type response is returned after every RING result code The read command CLIP gives the status of mode n and also triggers an interroga tion of the provision status of CLIP in the network AT CLIP Calling line identification presentation AT CLIP Command Result AT CLIP Displays mode n mode m AT CLIP Displays a list of supported modes n AT CLIP mode n Selects new mode AT CLIP Com...

Page 54: ...n be used to in terrogate the M1 before requesting action AT CPAS Phone activity status AT CPAS Command Result AT CPAS Displays status AT CPAS Displays a list of supported stati AT CPAS Command AT CPAS Result Code CPAS 0 1 2 3 4 5 0 ready 1 unavailable 2 unknown 3 ringing 4 call in progress 5 asleep ...

Page 55: ...incoming service identifier to be ignored With fax calls this causes problems of many kinds because the user does not know which service is being used The command AT CRC 1 allows the M1 to also indicate the service identifier for in coming calls so that the user what service is being used To ensure that all units involved in the call accept the call in the proper manner the user should select the ...

Page 56: ...he M1 sup ports PDU mode A PDU protocol data unit contains almost all the information relating to a short message that is transferred in the GSM network For a more detailed descrip tion of the various PDUs see TS GSM 03 40 which describes the implementation of the short message service The implementation of AT C commands for SMS is based on TS GSM 07 05 Version 4 4 0 AT CXXCID Card identification ...

Page 57: ...are written and sent SM SIM message storage total1 Integer type total number of message locations in mem1 total2 Integer type total number of message locations in mem2 used1 Integer type number of messages currently in mem1 used2 Integer type number of messages currently in mem2 AT CSMS Select message service Command Possible response s CSMS service CSMS mt mo bm CSMS ERROR err CSMS CSMS service m...

Page 58: ...ress via which outgoing short messag es are sent Parameter command syntax sca GSM 04 11 RP SC address Address value field in string format tosca GSM 04 11 RP SC address Type of address octet in integer format AT CMGF Message format Command Possible response s CMGF mode CMGF CMGF mode CMGF CMGF list of supported mode s AT CSCA Service center address Command Possible response s CSCA sca tosca CSCA C...

Page 59: ...ent message 4 All messages This command allows you to send a short message from the TE to the network If the short message is successfully sent the message reference mr is returned to the TE Action command syntax mr GSM 03 40 TP message reference in integer format AT CMGR Read message Command Possible response s CMGR index If PDU mode CMGF 0 and command successful CMGR stat length CR LF pdu Otherw...

Page 60: ...ds Sets result code indication routing for SMS STATUS REPORTS bfr Defines the handling method for buffered result codes when mode 1 2 or 3 is enabled AT CMGW Write message to memory Command Possible response s If PDU mode CMGF 0 CMGW length stat CR PDU is given ctrl Z ESC CMGW index CMS ERROR err CMGW AT CMGD Delete message Command Possible response s CMGD index CMS ERROR err CMGD AT CNMI New mess...

Page 61: ...t supported 304 Invalid PDU mode parameter 310 SIM not inserted 311 SIM PIN necessary 312 PH SIM PIN necessary 313 SIM failure 314 SIM busy 315 SIM wrong 320 Memory failure 321 Invalid memory index 322 Memory full 330 SMSC address unknown 331 No network service 332 Network timeout 500 Unknown error AT CMGL List messages Command Possible response s CMGL stat If PDU mode CMGF 0 and command successfu...

Page 62: ...AT FPTS AT FBUG Setting additional parameters AT FCR AT FAAAT FBUF AT FBOR The active configuration profile for the GSM M1 module is stored in S registers Each register is 8 bits long A number of S registers are reserved and must not be modified The other registers can be read by means of the ATSn command or overwritten using the ATSn command You can modify some S register values using AT commands...

Page 63: ...tring The GSM module transmits a CR and LF character after each set of register contents is displayed If the command syntax is incorrect the GSM module returns ERROR The ATSn x command allows you to instruct your GSM module to store the value x in register n n and x must be integers and decimal numbers n must designate an S register x must be from 0 to 255 Example Enter ATS0 3 GSM module OK This c...

Page 64: ...ll bits can also be disabled 0 a total of 256 statuses can be stored in these 8 bit positions This means that more than one parameter can be stored in one register Example Decimal Binary 3 00000011 43 00101011 100 01100100 If a command applies only to bits 3 4 and 5 of an S registers up to 8 different statuses can be defined Binary and decimal values in S registers Bit 7 6 5 4 3 2 1 0 Binary 1 1 1...

Page 65: ... 7 Reserved value is 0 Bits 6 5 and 4 Connection messages ATXn command Bits 3 to 0 Reserved value is 0 You wish to enter the following parameter values Bit 7 Reserved value is 0 Isolated value binary 0 decimal 0 Positioned value binary 0 x x x x x x x decimal 0 Bits 6 5 and 4 Extended connect message ignore busy signal ATX2 Isolated value binary 0 1 0 decimal 2 Positioned value binary x 0 1 0 x x ...

Page 66: ... the D1 D2 and D3 options are enabled the GSM module returns to command mode as soon as it detects that the level of the DTR signal has changed from ON to OFF S3 ASCII value of the CR character The factory setting for all countries is 13 CR terminates command lines and initiates their execution as well as terminating result codes Permissible values are from 0 to 127 S4 ASCII value of the LF charac...

Page 67: ...6 Reserved 0 7 Reserved 0 S21 DTR and DCD options Bit Options Values 0 Reserved 0 1 Automatic dialing when DTR OFF ON At Dn 0 1 Automatic DTR dialing on Automatic DTR dialing off 2 Reserved 0 3 4 DTR options AT Dn 0 1 2 3 Ignore DTR GSM module changes to command mode when it detects falling edge at DTR ON OFF Same as 1 but also disconnects call GSM module is initialized when it detects falling edg...

Page 68: ... as ATX0 Reserved Reserved Reserved Same as ATX1 Same as ATX2 Same as ATX3 Same as ATX4 7 Reserved 0 S23 Bit rate and parity Bit Options Values 0 Reserved 0 1 2 3 Transfer rate at the COM interface 0 1 2 3 4 5 6 7 Reserved Reserved Reserved 2400 bit s 4800 bit s 9600 bit s 19200 bit s Reserved 4 5 Parity 0 1 2 3 Reserved None Reserved Reserved 6 Reserved 0 7 Reserved 0 ...

Page 69: ...n nection Start the test loop and enter a random test message via the keyboard The GSM module does not send this message to the distant station but instead receives it itself It returns the message to the computer where it is displayed on the screen If the GSM module correctly echoes the test message to the computer the module has successfully completed the local digital test Please note You can i...

Page 70: ...ed by CR and LF ATI2 Checks firmware checksums As the result the GSM module returns the OK or ERROR result code followed by CR and LF ATI8 Displays GSM module s operating modes 7 GSM 2400 bit s duplex asynchronous transparent V 22bis 11 GSM 4800 bit s duplex asynchronous transparent V 32 13 GSM 9600 bit s duplex asynchronous transparent V 32 25 GSM 2400 bit s asynchronous transparent V 110 ISDN 27...

Page 71: ...e to DIN 41652 Pin assignment Logic V 24 asynchronous Baud rates 2400 19200 baud autobauding Parity None Character format 8 data bits Stop bits 1 Level To CCITT Recommendation V 28 General V 24 interface PIN DIN EIA CCITT Designation 1 M5 DCD 109 Data Carrier Detect 2 D2 RX 104 Receive Data out 3 D1 TD 103 Transmit Data in 4 S1 2 DTR 108 2 Data Terminal Ready 5 E2 102 Signal Ground 6 M1 DSR 107 Da...

Page 72: ...rer specific PIN Name Used Meaning 1 Power X 8 V 24 V DC 2 Reserved 3 BF Bus Reserved 4 NF Ext Reserved 5 TX_E Reserved 6 RX_E Reserved 7 Ignition X Activate deactivate 0 24 V 8 Antenna Ext Reserved 9 AUDO_1 Reserved 10 AUDO_2 Reserved 11 HF_MICRO Reserved 12 GNDA Reserved 13 GND X Ground 14 GND Ground ...

Page 73: ... Routes MOC and MTC Info transf mode 3 1 Khz audio ex PLMN analog or UDI V 110 ISDN Clock mode Asynchronous Connection elem Transparent Structure Unstructured Layer 2 protocol NAV Data bits 8 Parity bits None Bits char Always 10 bits char Stop bits 1 Radio channel Full rate Intermed rate 8 or 16 kbit s User rate 2400 4800 or 9600 bit s Modem type V 22bis V 32 Bearer service BS 24 BS 25 BS 26 GSM R...

Page 74: ...ifications can be ordered from the following address European Telecommunications Standards Institute ETSI Secretariat Postal Address F 06921 Sophia Antipolis CEDEX FRANCE Office Address 650 Route des Lucioles Sophia Antipolis Valbonne FRANCE X 400 c fr a atlas p etsi s secretariat Internet secretariat etsi fr Tel 33 92 94 42 00 Fax 33 93 65 47 16 GSM reference documents ETSI contact ...

Page 75: ...evice also conforms to the following EU guidelines 89 336 EWG Electromagnetic Compatibility 91 263 EWG CTR5 and CTR 9 ETS 300342 1 as confirmed by the CE mark The current version of this manual and of the M1 software can be found in the following mailbox Mailbox telephone number 49 89 722 46555 CE Sign Service ...

Page 76: ...straße 51 D 81359 Munich Siemens Aktiengesellschaft Siemens AG 1996 All rights reserved Subject to availability Right of modification reserved Order No A24859 N4000 A100 1 7677 Printed in Germany 02 96 Particularly environmentally friendly paper 50 recycled 50 chlorine bleached ...

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