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Helmholz Modem 56k small/Modem 56k USB small

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5.4.1

V.42bis Data Compression

Switch on V.42bis data compression

Switch off V.42bis data compression

V.42bis data compression may only be performed for a V.42 con-
nection (LAP-M or MNP 4). First of all, V.42bis generates a so-
called dictionary for the data compression, which contains fre-
quently used character sequences. After that, only short refer-
ences to these character sequences and not the complete charac-
ter sequences are transmitted to the other modem.
V.42bis cannot re-pack packed data.

5.4.2

MNP 5 Data Compression

The modem masters the Microcom Networking Protocol Level 5.
MNP 5 data compression can only be performed for an error cor-
rected MNP 4 connection. MNP 5 replaces frequently used charac-
ters by shorter characters, so-called tokens.
MNP 5 cannot re-pack packed data.

5.4.3

V.44 Data Compression

The V44 data compression offers better compression of typical
internet content than V.42bis. V.44 also requires an error cor-
rected connected, just as V.42bis, and cannot re-compress already
compressed data.

Switch off V.44 data compression

Switch on V.44 data compression

AT%C2

AT%C3

AT%C3

AT%C0

AT+DS44=0

AT+DS44=3

AT%C1

AT%C3

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Содержание Modem 56k small

Страница 1: ...Gro enseebach Phone 49 9135 7380 0 z Fax 49 9135 7380 110 z E Mail info helmholz de z Internet www helmholz com 56 k Modem small 56 k Modem USB small 700 751 HSM21 700 751 HSM31 Operating Manual Vers...

Страница 2: ...utility model or design Copyright 2009 by Systeme Helmholz GmbH Hannberger Weg 2 91091 Gro enseebach Germany Note We have checked the content of this manual for conformity with the hardware and softwa...

Страница 3: ...10 4 5 INSTALLATION OF A USB DRIVER 12 5 FUNCTIONS 18 5 1 CONFIGURATION 18 5 2 SERIAL DATA TRANSMISSION 20 5 3 ERROR CORRECTION 24 5 4 DATA COMPRESSION 24 5 5 SELECTIVE CALL ANSWER 26 5 6 SEND MESSAGE...

Страница 4: ...COMMANDS 43 9 2 OVERVIEW FAX AND VOICE COMMANDS 67 9 3 AT MESSAGES 67 10 S REGISTRY 71 10 1 OVERVIEW S REGISTRY 71 10 2 DESCRIPTION S REGISTRY 72 11 SENDING SMS AS FAX OR E MAIL 81 11 1 SMS AS FAX 81...

Страница 5: ...tents Helmholz Modem 56k small Modem 56k USB small 5 14 4 POSSIBLE INTERFACE SPEEDS 88 14 5 SUPPORTED TRANSMISSION STANDARDS 89 14 6 TELEPHONE INTERFACE 89 14 7 ITU STANDARDS CCITT 91 15 COUNTRY CODES...

Страница 6: ...Please also check the mo dem for shipping damage Please also refer to your supplier if anything is damaged Please keep the packaging material for possible future shipping or storage 2 Function Overvie...

Страница 7: ...the letters AT and end with a Return Carriage Return CR AT commands can be entered in capital or small letters The command is evaluated as soon as the modem received a response In the following the u...

Страница 8: ...Right LED LED off No operating voltage applied The modem is not off hook it has not yet lifted the receiver LED is green Operating voltage applied The modem is hooked to the phone line it has lifted t...

Страница 9: ...files Default factory setting The default factory settings enable you to achieve a fixed defined basic state of the modem Starting with this basis you can cus tomize the modem according to your requir...

Страница 10: ...of a driver is not required when using a terminal program or the HSComm If you use another application a driver may be necessary Please find our current drivers at http www helmholz de or install the...

Страница 11: ...lly search for the connected modem 9 Connection to the telephone network Connect the modem with the phone outlet using the supplied phone cord 10 Connection Test Perform a manual connection either to...

Страница 12: ...OLZ Modem 56 k USB small at the just installed COM port The following describes the installation of the driver using the operating system Windows XP The installation of the driver using Windows 2000 i...

Страница 13: ...ist and click on Next Click the button Browse and enter the path to the location of the driver information E g CD Drive Driver small_USB The system will now search for the driver information Confirm a...

Страница 14: ...B small Click on Finish to complete the first part of the installation Note Immediately after the first driver has been installed this installation route must be per formed the same way a second time...

Страница 15: ...modem was installed at COM port 4 The modem can now only be addressed via this COM port using the configuration software HSComm for example For many applications the installation up to this point is...

Страница 16: ...ribes the installation of a driver for an HELMHOLZ Modem Open the modem management in the control panel Start menu Control Panel Network and Internet Connections Phone and Modem Options Start the inst...

Страница 17: ...ry you may need to enter the storage location manually using the button Disk Drive to select the storage location E g at CD Drive DIN_Rail Driver Modem Now enter the COM port for the modem connection...

Страница 18: ...guration Change Loading the factory settings into the active profile will enable you to easily recover an executable state Loading the user profile 0 Loading the user profile 1 Prior to the loading of...

Страница 19: ...0 B3 E1 L1 M1 Q0 T V1 W0 X4 A1 L0 M0 P0 R1 B0 C3 E2 S0 A1 N3 V0 A0 C1 D2 G0 K3 Q5 R1 S0 X0 S00 005 S02 043 S06 003 S07 050 S08 002 S09 006 S10 014 S11 085 S12 050 S13 003 S15 000 S17 042 S18 000 S24...

Страница 20: ...speed on the phone line is performed automatically unless the settings say otherwise During the establishing of a connection both modems at tempt to achieve the joint fastest speed on the phone line...

Страница 21: ...sion format Data is transmitted without buffering Data compression or error correction will not work in bit direct mode Only the abort sequence default is utilized by the mo dem 5 2 4 Hardware Data F...

Страница 22: ...nto the data stream to the appli cation This character will cause the application to send no more data It will depend on the according application software if the RTS CTS data flow control is supporte...

Страница 23: ...plies to all public phone networks in EU countries Belgium Denmark German Finland France Greece Great Britain Ireland Italy Luxembourg Netherlands Austria Portugal Sweden Spain as well as in Switzerla...

Страница 24: ...In V 42 the possibility exists to have the modem identify if the partner is a V 42 modem a MNP modem or a modem without er ror correction The modem can then autonomously adjust to the partner 5 3 2 MN...

Страница 25: ...he other modem V 42bis cannot re pack packed data 5 4 2 MNP 5 Data Compression The modem masters the Microcom Networking Protocol Level 5 MNP 5 data compression can only be performed for an error cor...

Страница 26: ...the complete phone list for the selective call accep tance The list of phone numbers has 8 storage locations alto gether N0 to N7 Only if the transmitted phone number nr matches a phone number that w...

Страница 27: ...contain separators such as brackets or space characters The phone numbers can be deleted individually in two dif ferent ways Delete the entered phone number E g Delete the number stored at the storage...

Страница 28: ...orks fax and e mail The maximum text length is 160 characters Protocol settings see table Transmission Protocol Data format Example Data Connection AT M0 SMS to Mobile PET 8N1 D1 or E Network AT M1 SM...

Страница 29: ...ider Please find an overview of the required settings for network pro viders in German speaking countries in the attachment 5 6 2 Triggering Manual triggering of the collective message Manual triggeri...

Страница 30: ...mend however using only error corrected connections for remote configuration to avoid transfer errors for the commands The local modem is not required to master any remote configura tion type 5 7 2 Re...

Страница 31: ...duced command set Some commands may not be executed during remote configuration and will result in the following response 5 7 6 Terminate remote configuration Before you complete the remote configurat...

Страница 32: ...red the password Activate password protection Deactivate password protection 5 8 3 Security callback The feature Security Callback will cause the remote modem to hang up and call back a preset number...

Страница 33: ...After the password has been entered correctly the modem hangs up and after about 10 seconds dials the stored phone number Altogether 3 dialing attempts with a pause of 10 seconds be tween each attempt...

Страница 34: ...period between 1 and 255 seconds may be set 5 9 2 Mode of Operation for the Timer The timer will run immediately after the modem goes off hook After the set time has been reached a RESET is performed...

Страница 35: ...n 1 Function 2 Function 3 Chap 5 10 1 Chap 5 10 2 Chap 5 10 3 AT STE 0 default AT STE 1 AT STE 2 AT STE 3 AT STE 4 AT STE 5 AT STE 6 AT STE 7 5 10 1 Detecting a busy phone line During a dial up attemp...

Страница 36: ...ct the function Off hook on account of a telephone connected in series U2 can be set with the help of AT commands Note The detection starts immediately after the hand set is picked up To access the ex...

Страница 37: ...loop voltage to detect the function Remote Ter minal Connection Abort U3 can be set with the help of AT commands Note This detection is based on the change of the loop voltage AT TTE U1 U2 U3 It will...

Страница 38: ...ia the menu Device Device HSComm verifies the connected device and displays the device name and the firmware in the right top program window By default only those settings can be selected which are im...

Страница 39: ...can be queried at Systeme Helmholz GmbH E mail info helmholz de HSComm offers a range of recommended settings for the modems con nected at the PLC or the PC at the control center If control is selecte...

Страница 40: ...es of the modem without switching the EEPROM The new version is available from your service partner Query of the used firmware Unpack the file into any directory on the PC and start Flash com exe The...

Страница 41: ...andatory For safety reasons any interpretation of characters e g TAB CR BS by the ASCII upload protocol must be prevented The baud rate must be between 9 600 baud and 57 600 baud Other baud rates may...

Страница 42: ...aterm html Each AT command starts with the letters AT and ends with a Carriage Return CR Capital and small letters will both be accepted but the leading characters must be ei ther AT or at The command...

Страница 43: ...ected MNP transmissions AT A0 64 byte AT A1 128 byte default AT A2 192 byte AT A3 256 byte AT A n Automatic call acceptance on off AT A0 Call acceptance is blocked irrespective of S0 AT A1 Call accept...

Страница 44: ...second break signal AT B6 6 10 second break signal AT B7 7 10 second break signal AT B8 8 10 second break signal AT B9 9 10 second break signal AT B n Switch key abort on and off during connection AT...

Страница 45: ...etting of AT CMFG the command AT CMGS will have a dif ferent syntax Setting AT CMGF 1 text mode AT CMGS phone number The modem returns the character and awaits the SMS text up to 160 charac ters endin...

Страница 46: ...ty AT CREG responds with CREG 0 1 This command only serves for the purpose of compatibility with applications for GSM devices AT CSQ Dummy command for GSM compatibility AT CSQ responds with CSQ 20 99...

Страница 47: ...as if the command AT FRH had been executed The following characters may be transmitted as parameters brackets punctua tion marks spaces and semicolons are ignored 0 to 9 The digits from 0 to 9 The ast...

Страница 48: ...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 dial ing Default Ringing tone is sent for fax operation No...

Страница 49: ...efault AT DS44 n Activate deactivate V 44 data compression AT DS44 0 Deactivates V 44 data compression AT DS44 3 Activates V 44 data compression default ATE n Command entry Echo This command toggles t...

Страница 50: ...ith the highest possible speed default AT H1 Connection setup takes place with 1 200 bps AT H2 Connection setup takes place with 4800 bps ATI n Identification The modem sends an identification to the...

Страница 51: ...F data flow control AT K8 Activates the controlled half duplex operation on the serial inter face for RS485 In this mode the CTS signal is deactivated high while the HELMHOLZ Modem 56k small sends dat...

Страница 52: ...was set to command mode by an escape sequence In this condition the command AT B will send a break to the other modem In this situation the pa rameter n will cause the following AT K0 Modem deletes th...

Страница 53: ...ys switched on AT L0 If the limitation is switched off AT L1 the modem will always establish the connection on the phone side with the maximum possible speed or the speed defined with AT MS irrespecti...

Страница 54: ...essage CONNECT After the message CONNECT the line MCR appears followed by the modulation type see command AT MS and the line MRR followed by the line speed The AT MR command is useful for a connection...

Страница 55: ...67 49333 48000 46667 48000 46667 45333 42667 41333 40000 38667 37333 36000 34667 33333 32000 30667 29333 28000 B103 Bell 103 300 B212 Bell 212 1200 75 Parameter Automode The optional parameter automod...

Страница 56: ...not tied to a certain mobile phone network but send SMS to any mobile or fixed network phone Note For the remote terminals AT M1 to AT M4 only recipients in the network of one GSM provider may be add...

Страница 57: ...ending in nl AT N99 Deletes all existing entries in the list AT N Displays all stored entries Example AT N5 1234 allows all calls ending with 1234 E g 0175 9991234 0941 8881234 or 4940 7771234 AT N1 0...

Страница 58: ...control This command toggles sending messages from the modem to the application ON and OFF ATQ0 Send messages to application default ATQ1 Don t send messages to application AT Q Display telephone cal...

Страница 59: ...TS CTS behavior This command determines how the modem treats the RTS CTS CT105 CT106 data flow control lines See also command AT K n AT R0 CTS behavior complies with V 25bis CTS is deactivated during...

Страница 60: ...lects the transmission speed at the serial interface The settings can be selected with this command This will however not switch off the automatic detection As soon as an AT is recognized the serial i...

Страница 61: ...connection The telephone is connected to the line and receives a dialing tone 3 Remote terminal connection abort When the remote terminal aborts a connection the modem will immediately terminate the...

Страница 62: ...f to the recognized speed and protocol If no AT is sent the selected protocol is maintained until a hardware reset is performed If the selected protocol should be maintained longer it must be stored w...

Страница 63: ...V Query of the common alarm texts collective message The common part of the alarm message is queried with the command AT V AT V n Definition of the variable alarm texts and phone numbers Definition of...

Страница 64: ...ON Displays the used data compression method The example shows the used compression method V 42bis the com pression method can be set with the command AT C LINE QUALITY Displays the quality of the dat...

Страница 65: ...D preformatted for incoming calls AT VCID 2 Switches the CLIP function on and displays the ID unformatted for incoming calls AT VRID n Set last received CLIP The command AT VRID displays the CLIP of t...

Страница 66: ...contains the speed specifica tion ATX2 Dialing tone detection is active i e a dialing attempt without the presence of a dialing tone leads to the message NO DIALTONE No detection of the busy signal i...

Страница 67: ...callback number for security callback AT Z2 xxx Number of the mobile phone for simple alarm messages AT Z3 xxx Number of the fax machine for collective alarm messages Pause Pause Change from data mod...

Страница 68: ...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 75...

Страница 69: ...PROTOCOL ALT X X X X X 81 PROTOCOL ALT CELLULAR X X X X X 84 CONNECT 33600 X X X X X 91 CONNECT 31200 X X X X X 150 CARRIER 32000 X X X X X 151 CARRIER 34000 X X X X X 152 CARRIER 36000 X X X X X 153...

Страница 70: ...R 37333 X X X X X 186 CARRIER 38667 X X X X X 187 CARRIER 41333 X X X X X 188 CARRIER 42667 X X X X X 189 CARRIER 45333 X X X X X 190 CARRIER 46667 X X X X X 191 CARRIER 49333 X X X X X 192 CARRIER 50...

Страница 71: ...ing tones 0 255 0 S2 Escape ASCII 0 255 43 S3 Return ASCII 0 127 13 S4 Linefeed character ASCII 0 127 10 S5 Backspace character ASCII 0 255 8 S6 Waiting period dial tone s 4 7 4 S7 Waiting period carr...

Страница 72: ...code 0 10 2 Description S Registry Note Registries marked with are stored in the user defaults with the command AT W Befehl S0 Number of ringing tones until automatically going off hook Number of rin...

Страница 73: ...dem has finished dialing The value of S7 can be between 0 and 180 seconds S8 Dial tone delay Dial pause time if a comma is included in the dialing string If there is a comma in the dialing string the...

Страница 74: ...Settings The idle connection control is a function integrated in the firmware which monitors the data transmission in online mode This function prevents the modem to stay online for an unlimited amoun...

Страница 75: ...DCD behavior 0 see AT C0 1 see AT C1 Bit 6 DSR behavior CT107 DCD behavior 0 see AT S0 1 see AT S1 Bit 7 Long term interruption Long space disconnect 0 see ATY0 1 see ATY1 S22 Speaker system settings...

Страница 76: ...od 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 Mea...

Страница 77: ...e and establishes a direct mode connection 4 Modem attempts to establish a MNP connec tion In case of failure it hangs up 5 Modem attempts to establish a MNP connec tion In case of failure a direct mo...

Страница 78: ...AT K0 1 see AT K1 2 see AT K2 3 see AT K3 4 see AT K4 5 see 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...

Страница 79: ...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 remo...

Страница 80: ...it level S91 0 Transmit level 0 dBm S91 15 Transmit level 15 dBm Note The range and the default value depend on the country settings AT GCI S95 Result code Bit Meaning Bit 0 CONNECT message with line...

Страница 81: ...ry information is available from the cus tomer service center of the provider 11 1 SMS as Fax SMS format This is a test This is a test FAX This is a test Example 990941586920 0941586920 0941586920 Pho...

Страница 82: ...t This is a test abc defg de This is a test E mail address abc defg de abc defg de SMS format E mail address space text Text E mail address space text Phone number 8000 E mail ad dress 555 Service cen...

Страница 83: ...r the dialing command ATD has been entered and reports the error No Dial tone The modem is operated at a PBX The PBX requires that a code number is dialed to establish a connection or that the flash f...

Страница 84: ...th a particular commu nication program The communication program expects a certain data flow con trol type The modem has not been set to the required type Setting the modem to the re quired data flow...

Страница 85: ...ccurs the device will not be operational We recom mend providing a separate circuit for the HELMHOLZ Modem 56k small If other devices experience short circuits the HELMHOLZ Mo dem 56k small will thus...

Страница 86: ...data was measured with a nominal input voltage full load and an ambient temperature of 77 00 F The threshold value tolerances are subject to the typical fluctuations A maximum of one value may be ope...

Страница 87: ...DTE 1 DCD AT C Data Carrier Detect 109 CF M5 O 2 RXD Receive Data 104 BB D2 O 3 TXD Transmit Data 103 BA D1 I 4 DTR AT D Data Terminal Ready 108 CD S1 I 5 GND Ground 102 AB E2 6 DSR AT S Data set read...

Страница 88: ...88 Helmholz Modem 56k small Modem 56k USB small 14 3 Possible Interface Speeds Baud rate in bps 300 4 800 28 800 600 9 600 38 400 1 200 14 400 57 600 2 400 19 200 115 200...

Страница 89: ...bis 9 Remote Maintenance 9 V 23 9 Fax group 3 send receive up to 14 400 bps V 27ter 9 Fax class 1 command set 9 V 29 9 Fax class 2 command set 9 V 32bis 9 MNP 2 4 error correction 9 V 34 9 MNP 5 Data...

Страница 90: ...iption 1 NC 4 b1 2 a2 5 b2 3 a1 6 NC Meaning of the Signals a1 b1 Incoming phone lines e g exchange connection or PBX a2 b2 They are used to connect a telephone in series In idle state a2 and b2 are c...

Страница 91: ...00 16 800 14 400 bps V 34 Transmission with 28 800 bps or fallback 26 400 24 000 21 600 19 200 16 800 14 400 bps V 34 Transmission with 33 600 bps or fallback 31 200 28 800 26 400 24 000 21 600 19 200...

Страница 92: ...untry Standard coun tries Extended country groups TBR21 FD default FD default Egypt 38 Albania B8 Algeria FE Andorra FD FD Argentina 07 Australia 09 Algeria FE Bangladesh FE Belgium FD 0F FD Birma Mya...

Страница 93: ...00 Yemen FE Jordan FE Cambodia FE Canada 20 Colombia 27 Republic of Korea 61 Croatia FA Kuwait 62 Laos FE Latvia FD FD Lebanon 64 Liechtenstein FD FD Lithuania FE Luxembourg FD 69 Malaysia 6C Macedon...

Страница 94: ...uth Africa 9F Taiwan FE Thailand A9 Czech Republic 2E Turkey AE Tunisia FE Ukraine FE Hungary 51 Uruguay B7 USA B5 Venezuela BB United Arab Emirates B3 Belarus FE Cyprus 2D The standard TBR21 applies...

Страница 95: ...95...

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