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Operation Manual V.34 - Modems, Version 07/97

A/O Da/Te

LOGEM

928

Chapter 1

1.14

Front Panel LOGEM

LGM 28.8D1

LOGEM

LGM

28.8D1

Da/Te

SERV.

ANS
PM1

Element

Description

Da/Te (button)

data/test button

SERV. (conn.)

earphone connector

ANS (LED)

indicates channel allocation
Blinks:modem occupies the line

PM1 (LED)

State of interface line PM1
ON:

test activated

S1 (LED)

State of interface line S1
ON:

DTE is ready

M1 (LED)*

State of interface line M1
ON:

modem is ready

FKS8 (jack)

telephone access jack

Modem Description

* A special modem version displays M5 (instead of M1). Here M5 = ON
means that a carrier was detected (DCD).

Содержание LOGEM LGH 28.8D1

Страница 1: ... Kommunikations Elektronik GmbH Co Technical Status 07 97 Changes may be made without further notice Editor ke Kommunikations Elektronik GmbH Co Kabelkamp 20 30179 Hannover Germany Phone 49 511 67 47 0 Fax 49 511 67 47 376 Internet http www ke online de T Online ke Ordering Number 371 977 46 ...

Страница 2: ... these versions are not specified with their product name at some parts in the manual due to practical reasons Specific features of the different versions are described separately in the operation manual The product meets the rules of the conformity declaration at operational conditions that can be considered as normal use ...

Страница 3: ...itches Description 33 3 AT Commands 67 4 Register Allocation 105 5 V 25bis Commands 125 6 Dial Backup Features 135 7 Applications 145 8 Appendix 171 Chapter 8 S1 M2 D1 M5 D2 A O Da Te LOGEM 928 Chapter 1 Chapter 7 AT Chapter 3 Chapter 6 ON Chapter 2 REG Chapter 4 V 25 bis Chapter 5 ...

Страница 4: ...l LOGEM 928 20 1 14 Front Panel LOGEM LGM 28 8D1 21 1 15 Side View LOGEM LGM 28 8D1 22 1 16 Front Panel LOGEM LGH 28 8D1 23 1 17 Top Side LOGEM LGH 28 8D1 24 1 18 Connection Example 25 1 19 Installation and Commissioning Standalone Versions 26 1 20 Installation and Commissioning Rackmounted Versions 27 1 21 Installation and Commissioning Top Rail Versions 28 1 22 Loading of Basic Settings 29 1 23 ...

Страница 5: ...LOGEM 928 Standalone Version 59 2 7 Transmit and Receive level Rackmounted Version 60 2 8 Board of the LGM 28 8D1 61 2 9 Transmit And Receive Level Top Rail Version 62 2 10 Board of the LGH 28 8D1 63 2 11 Country Setting for LGH 28 8D1 64 3 AT Commands 67 3 1 General 67 3 2 Command Description 68 3 3 Telephone and Dialing Features 69 3 3 1 Test Loops 77 3 3 2 Storing and Displaying of Telephone Nu...

Страница 6: ...Telephone Access Line Selection 139 6 5 Access Line Alternatives 141 7 Applications 145 7 1 Remote Configuration Features 145 7 2 Leased Line Operation Standalone Version 151 7 2 1 Leased Line Operation Rackmounted Version 152 7 2 2 2 Wire Leased Line 153 7 2 3 4 Wire Leased Line 156 7 2 4 Leased Line Operation with Dial Backup 157 7 2 5 Leased Line Operation with Manual Dial Backup 158 7 3 Leased...

Страница 7: ...aces LGM 28 8D1 181 Appendix C3 V 24 Interface Allocations 182 Appendix C4 Asynchronous Standard Connection Connection 183 Appendix C5 Synchronous Standard Connection 184 Appendix C7 Modem to Modem Cross Cable asynchronous 185 Appendix C6 Allocation of the 25pole Sub D Jack 185 Appendix C8 Modem Identification 186 Appendix D ASCII Table 187 Appendix E Glossary 188 Appendix F Technical Data 191 App...

Страница 8: ...8 Operation Manual V 34 Modems Version 07 97 Contents ...

Страница 9: ...Electronical devices are sensitive for electrostatical charges Deflect any electrostatical charges before touching the board with your hands or tools Disable the power supply before removing the housing standalone or the casing of the rackmounted versions Boards may be only extracted after any connections have been removed Make sure that other units you are going to connect to your device meet all...

Страница 10: ...10 Operation Manual V 34 Modems Version 07 97 General ...

Страница 11: ...al V 34 Modems Version 07 97 General About The Manual This manual presents the features of the modems concerning all functions and meaning of the DIP switches as well as the operational elements and the command language ...

Страница 12: ...12 Operation Manual V 34 Modems Version 07 97 General ...

Страница 13: ... 18 1 9 2 4 Wire Leased Line Operation with Dial Backup 18 1 10 Fax Operation 18 1 11 License 18 1 12 Front Panel LOGEM 928 19 1 13 Backpanel LOGEM 928 20 1 14 Front Panel LOGEM LGM 28 8D1 21 1 15 Side View LOGEM LGM 28 8D1 22 1 16 Front Panel LOGEM LGH 28 8D1 23 1 17 Top Side LOGEM LGH 28 8D1 24 1 18 Connection Example 25 1 19 Installation and Commissioning Standalone Versions 26 1 20 Installatio...

Страница 14: ...14 Operation Manual V 34 Modems Version 07 97 Chapter 1 S1 M2 D1 M5 D2 A O Da Te LOGEM 928 Modem Description ...

Страница 15: ...32 V 22bis and V 21 thus allowing for almost errorless data transmission between to terminal equipments Due to the implementation of data compression methods acc to V 42bis and MNP5 data transmission rate may increase up to the factor 4 max 115200 bit s Safety aspects are taken into consideration starting with the dial up At activated password protection any caller is only put through to the termi...

Страница 16: ...he switches of the modem to be replaced For this reason a terminal is not necessary for modem configuration During mixed mode the modem operates with the AT mode but some registers have to be selected with DIP switches as they are blocked for software access 1 1 Transmission Procedures The modems operate with the ITU T recommendations listed below V 34 2400 bit s 4800 bit s 7200 bit s 9600 bit s 1...

Страница 17: ...nternational standard for automatic dialing during synchronous or asynchronous operation modes 1 5 Automatic Dialing The modems come with an integrated automatical dialing feature for data connections that may be controlled using either the V 25bis or the AT command set An integrated memory for calling numbers is included as well The dialing can be performed with pulse or tone multi frequency dial...

Страница 18: ...ration with Dial Backup This feature is only available for the standalone and rackmounted versions A special board for 2 4 wire leased line operation with dial backup feature is available as an option Max 20 backup numbers may be stored During failures on the leased line the modem calls the stored backup numbers until it is able to initiate a switched line connection In the meantime the modem chec...

Страница 19: ...nterface line S1 ON DTE is operational M2 LED State of interface line M2 ON DCE ready to transmit D1 LED State of interface line D1 OFF no DTE connected Green DTE is active Red DTE transmits data M5 LED State of interface line M5 ON carrier detected D2 LED State of interface line D2 Green DCE is active RED receive data A O LED State of interface line A O ON answer upper channel Da Te button data t...

Страница 20: ...el LOGEM 928 1 2 3 4 Element Description 1 telephone access jack RJ12 for dial line and 2 wire leased line 2 RJ12 jack for 2 4 wire leased line via DBU board optional 3 25pole sub D jack acc to ITU T V 24 V 28 4 power supply connector 2pole for power supply cable of the external adapter Modem Description ...

Страница 21: ...t button SERV conn earphone connector ANS LED indicates channel allocation Blinks modem occupies the line PM1 LED State of interface line PM1 ON test activated S1 LED State of interface line S1 ON DTE is ready M1 LED State of interface line M1 ON modem is ready FKS8 jack telephone access jack Modem Description A special modem version displays M5 instead of M1 Here M5 ON means that a carrier was de...

Страница 22: ... 97 Chapter 1 S1 M2 D1 M5 D2 A O Da Te LOGEM 928 1 15 Side View LOGEM LGM 28 8D1 Element Description S1 switch DIP switches SET 1 1 SET 1 10 S2 switch DIP switches SET 2 1 SET 2 4 S3 switch DIP switches SET 3 1 SET 3 6 bottom Modem Description ...

Страница 23: ...interface line D1 TxD ON receives data from DTE S1 LED State of interface line S1 DTR Yellow DTE operational LB LED ON active during line access D2 LED State of interface line D2 RxD ON transmits data to DTE M2 LED State of interface line M2 CTS Yellow DCE ready to receive M5 LED State of interface line M5 DCD Yellow during existing connection Modem Description ...

Страница 24: ...24 Operation Manual V 34 Modems Version 07 97 Chapter 1 S1 M2 D1 M5 D2 A O Da Te LOGEM 928 1 17 Top Side LOGEM LGH 28 8D1 Modem Description ...

Страница 25: ...25 Operation Manual V 34 Modems Version 07 97 S1 M2 D1 M5 D2 A O Da Te LOGEM 928 Chapter 1 1 18 Connection Example TAE 6 NF Datenendeinrichtung S1 M2 D1 M5 D2 A O Da Te LOGEM 928 Modem Description ...

Страница 26: ...2 Set the DIP switches at your device as necessary 3 Connect the V 24 interface cable to the serial output of your DTE V 24 V 28 orRS 232C and the V 24 jack of your modem 4 Connect the telephone access cable with the modem and the TAE6 N jack 5 Connect the power supply adapter with your modem and plug the adapter into the power supply socket Now the LED D2 indicates green The LOGEM 928 performs a ...

Страница 27: ... DTE and all other peripheral equipment printer etc 2 Set the DIP switches at your device as necessary 3 Install the modem into your communications system or switching box 4 Connect the telephone access cable with the modem and the TAE6 N jack 5 Now connect the V 24 jack of your modem with the DTE This is performed directly via the 96pole connector Attention the V 24 interface has TTL levels or us...

Страница 28: ... and all other peripheral equipment printer etc 2 Set the DIP switches at your device as necessary 3 Connect the V 24 interface cable to the serial output of your DTE V 24 V 28 orRS 232C and the 25pole jack of your modem 4 Connect the telephone access cable with the modem and the TAE6 N jack 5 Now connect your modem with the 24 V DC operating voltage The LGH 28 8D1 performs a self test Attention T...

Страница 29: ...t available for the top rail versions of the modems The modems feature an intelligent event report system that may be implemented for monitoring of private premises heating systems water level indicator or as an alarm system window broken burglary or to monitor industrial machinery water levels fire alarms This operation mode is available with software version 4 0 Alarm reports are transfered usin...

Страница 30: ...30 Operation Manual V 34 Modems Version 07 97 Chapter 1 S1 M2 D1 M5 D2 A O Da Te LOGEM 928 Modem Description ...

Страница 31: ...ware mode AT and V 25bis 50 2 3 Software Mode Switches Description 52 2 3 1 Loading of Basic Settings 0 1 or 8 52 2 3 2 Basic Setting 0 53 2 3 3 Basic Setting 1 53 2 3 4 Basic Setting 8 User Setting 2 54 2 4 Switches Table Basic Setting 0 Software Mode 55 2 4 1 Switches Table Basic Setting 1 56 2 4 2 Switches Table Basic Setting 8 User Setting 2 57 2 5 Transmit and Receive Levels Standalone Versio...

Страница 32: ...32 Operation Manual V 34 Modems Version 07 97 ON Chapter 2 Switches Description ...

Страница 33: ...f the other switches S1 and S2 1 S2 The switches tables shown on the coming sides operate with double head lines The upper line presents the DIP switches of the standalone and top rail versions The second line with grey shading presents the DIP switches of the rackmounted version S2 6 S2 7 S2 8 S2 9 S2 10 S3 2 S3 3 S3 4 S3 5 S3 6 Operation Mode LGM 1200H1 ON OFF ON OFF ON Switches Description S1 S...

Страница 34: ...at may be defined freely can be stored in a specially protected area of the EEPROM by the user This is a user defined basic setting that is stored with the command AT W2 After storing this configuration is to be regarded as a basic setting Mixed Mode The modems are in software mode during this operation mode but some register contents and AT commands have to be set using the DIP switches This allo...

Страница 35: ... settings 0 8 The settings for compatible mode are activated directly after POWER ON Generation of an user setting The modems allow for generating a user specific basic setting which is normally a modification of one of the basic settings 0 7 for a special application If such an alteration is only stored with the command AT W it might be overwritten in some cases Using the command AT W2 allows for...

Страница 36: ...data prot protocol leased line async data prot protocol leased line sync leased line with dial backup This operation is only possible if the modem is equipped with the optional board for 2 4 wire dial backup This feature is not available for the top rail versions possible operation mode recommended operation mode During compatible and mixed mode the modems allow for configuration without a termina...

Страница 37: ... 1 S2 4 correspond to the switches of the selected modem Thus the setting of the first14 DIP switches of the modem to emulated can be kept Then the compatible mode can be selceted using the last 5 DIP switches of the modem The DIP switches have to be set before activation of the operating voltage as the parameters necessary for this operating mode are only read out at POWER ON Switches Description...

Страница 38: ... dialing inc autom switching with answer tone OFF ON OFF leased line M1 direct switching ON ON OFF direct call outg dir dialing via interface S1 DTR OFF OFF ON S1 2 operation outg autom dialing inc manual switching with answer tone ON OFF ON S1 2 operation outg manual dialing inc manual switching with answer tone OFF ON ON S1 2 operation outg manual dialing inc manual switching with answer tone ON...

Страница 39: ...lloc S2 1 S2 1 OFF 22 ms OFF autom ON V 23 30 ms V 21 200 ms ON acc to S1 10 S2 2 equalizer S2 2 OFF on ON off S2 3 S2 4 only for dx operation S2 3 S2 4 OFF OFF no deactivation ON OFF no deactivation OFF ON after 250 ms ON ON after 10s S2 5 dialing procedure S3 1 OFF pulse ON tone S2 6 S2 7 S2 8 S2 9 S2 10 operation mode LGM 1200H1 S3 2 S3 3 S3 4 S3 5 S3 6 ON OFF ON OFF ON During software mode the...

Страница 40: ...inc autom switching with answer tone OFF ON OFF leased line M1 direct switching ON ON OFF direct call outg dir dialing via interface S1 DTR OFF OFF ON S1 2 operation outg autom dialing inc manual switching with answer tone ON OFF ON S1 2 operation outg manual dialing inc manual switching with answer tone OFF ON ON S1 2 operation outg manual dialing inc manual switching with answer tone ON ON ON S1...

Страница 41: ...FF perm ON ON echo ON from DTE S2 5 autom deactivation at S3 1 carrier loss OFF after 10s ON after 250 ms S2 6 bitrate tolerance overspeed S3 2 OFF 1 2 5 ON 2 3 2 5 S2 7 guardtone S3 3 OFF off ON 1800 Hz S2 8 carrier at const connection S3 4 OFF constant ON ON controlled S2 RTS S2 6 S2 7 S2 8 S2 9 S2 10 operation mode LGM 2400D2 S3 2 S3 3 S3 4 S3 5 S3 6 X X X ON ON During software mode these funct...

Страница 42: ...42 Operation Manual V 34 Modems Version 07 97 ON Chapter 2 Switches Description ...

Страница 43: ...peration AT commands are not available as it employs generally V 25bis commands only List of blocked AT commands for asynchronous mixed mode command register used by DIP switch ATF S50 S1 1 S1 3 modulation procedure AT D S1 4 S1 6 DTR option S0 S1 4 S1 6 autom call acception AT L S1 4 S1 6 line switching S80 S1 4 S1 6 command language AT or V 25bis AT N S1 7 S1 9 error correction procedure S60 S1 ...

Страница 44: ...utom switching with answer tone OFF ON OFF leased line M1 direct switching ON ON OFF direct call outg dir dialing via interface S1 DTR OFF OFF ON S1 2 operation outg autom dialing inc manual switching with answer tone ON OFF ON S1 2 operation outg manual dialing inc manual switching with answer tone OFF ON ON S1 2 operation outg manual dialing inc manual switching with answer tone ON ON ON S1 1 op...

Страница 45: ... for leased line operation S1 10 OFF answer ON originate S2 1 S2 2 clock variant S2 1 S2 2 OFF OFF transmit clock internally T2 T4 ON OFF transmit clock receiver T2 T4 OFF ON transmit clock externally T1 T4 ON ON S2 3 rate change S2 3 OFF off ON on S2 4 hx simulation S3 1 OFF off ON on S2 5 dialing procedure S3 1 OFF pulse ON tone S2 6 S2 7 S2 8 S2 9 S2 10 operation mode synchronous S3 2 S3 3 S3 4...

Страница 46: ...ching with answer tone OFF ON OFF S1 2 operation outg autom dialing inc manual switching with answer tone ON ON OFF S1 2 operation outg manual dialing inc manual switching with answer tone OFF OFF ON ON OFF ON OFF ON ON leased line switching channel alloc A originator ON ON ON leased line switching channel alloc B answer S1 7 S1 8 S1 9 error correction procedure data format S1 7 S1 8 S1 9 OFF OFF ...

Страница 47: ...ial line S2 5 leased line S3 1 dialing procedure S3 1 with DBU OFF pulse OFF 2 wire leased line ON tone ON 4 wire leased line S2 6 S2 7 S2 8 S2 9 S2 10 operation mode asynchronous S3 2 S3 3 S3 4 S3 5 S3 6 LOGEM 914 ON OFF OFF OFF ON LGM 14 4D1 During direct mode the DTE rate corresponds to the modulation procedure selected with S1 1 S1 3 During direct mode the switch determines if the selected mod...

Страница 48: ... autom switching with answer tone OFF ON OFF leased line M1 direct switching ON ON OFF direct call outg dir dialing via interface S1 DTR OFF OFF ON S1 2 operation outg autom dialing inc manual switching with answer tone ON OFF ON S1 2 operation outg manual dialing inc manual switching with answer tone OFF ON ON S1 2 operation outg manual dialing inc manual switching with answer tone ON ON ON S1 1 ...

Страница 49: ...1 S2 2 clock variant S2 1 S2 2 OFF OFF transmit clock internally T2 T4 ON OFF transmit clock receiver T2 T4 OFF ON transmit clock externally T1 T4 ON ON S2 3 rate change S2 3 OFF off ON on S2 4 hx simulation S3 1 OFF off ON on S2 5 dialing procedure S3 1 OFF pulse ON tone S2 6 S2 7 S2 8 S2 9 S2 10 operation mode synchronous S3 2 S3 3 S3 4 S3 5 S3 6 LOGEM 928 OFF ON OFF OFF ON LGM 28 8D1 During dir...

Страница 50: ...tion outg autom dialing inc manual switching with answer tone ON ON OFF S1 2 operation outg manual dialing inc manual switching with answer tone OFF OFF ON leased line switching channel alloc A via DBU ON OFF ON leased line switching channel alloc B via DBU OFF ON ON leased line switching channel alloc A originator ON ON ON leased line switching channel alloc B answer S1 7 S1 8 S1 9 error correcti...

Страница 51: ...dial line S2 5 leased line S3 1 dialing procedure S3 1 with DBU OFF pulse OFF 2 wire leased line ON tone ON 4 wire leased line S2 6 S2 7 S2 8 S2 9 S2 10 operation mode asynchronous S3 2 S3 3 S3 4 S3 5 S3 6 LOGEM 928 ON OFF OFF OFF ON LGM 28 8D1 During direct mode the DTE rate corresponds to the modulation procedure selected with S1 1 S1 3 During direct mode the switch determines if the selected mo...

Страница 52: ...eloaded later using the DIP switches 2 3 1 Loading of Basic Settings 0 1 or 8 If you are not certain concerning the modem setting or wish to load one of the basic settings this is possible at POWER ON as any other configuration that might be stored in the EEPROM is erased during startup Any stored short dial numbers or passwords are not erased Please refer to the list below 1 Deactivate the operat...

Страница 53: ...all acception after first ring Command phase AT command Command echo On Reports On text reports misc password protection and remote servicing deactivated 2 3 3 Basic Setting 1 Here DIP switch S2 6 S3 2 is in ON position and all other switches are in position OFF to load the basic setting 1 Connection dial line Operation mode V 22bis 2400 bit s DTE interface 2400 bit s at 8 data bits no parity Data...

Страница 54: ... that can be recalled using the DIP switches Connection dial line Operation mode automatical detection of modulation V 22 V 34 DTE interface autom detection of transmission rate at 8 data bits no parity Data protection normal mode MNP or V 42 is possible Data compression active MNP5 or V 42bis Data flow control hardware RTS CTS Call acception after first ring Command phase AT command Command echo ...

Страница 55: ...the DTE the modem operates with automatical detection of the transmission rate autobaud towards the data terminal equipment DTE The data format is set to 1 start bit 8 data bits no parity and 1 stop bit The ITU T protocols V 42 and V 42bis are activated for safe data transmission If the remote modem does not support data protection protocols the modems proceed with normal mode operation Modem repo...

Страница 56: ... S51 004 S54 001 S60 000 S61 000 S62 030 S63 006 S64 001 S65 004 S66 016 S67 000 S80 000 S81 000 S90 005 S91 001 S100 042 S101 000 S102 000 This basic setting allows for btx operation of the modems with 2400 bit s The data protection protocols are deactivated and the modem operates in direct mode During command phase the modems operate with AT commands 2 4 1 Switches Table Basic Setting 1 Switches...

Страница 57: ...1 000 S90 005 S91 001 S100 042 S101 000 S102 000 In delivery state the basic setting 8 is identical to basic setting 0 As an addition remote configuration is possible register S45 1 and the modem is operational without the control line S1 108 Using the command AT W2 these values can be overwritten to generate an individual basic setting 2 4 2 Switches Table Basic Setting 8 User Setting 2 Switches ...

Страница 58: ...g jumpers at the positions ST1 and ST2 Attention Any transmit level changes are not permitted within the network of the German Telekom Sendepegel Position ST2 Pegel Wählltg an Z Standltg an 600 Ω 4 5 dBm 6 dBm 6 5 dBm 8 5 dBm 10 5 dBm 8 dBm 10 dBm 12 dBm Auslieferungszustand 1 2 3 1 2 3 Position ST1 Empfangs pegel bereich an Z 43 dBm 33 dBm Auslieferungszustand 5 1 6 2 5 1 6 2 5 1 6 2 5 1 6 2 ...

Страница 59: ...ccessible from the bottom of the devices If changes at the jumpers are necessary the modem has to be opened at the marked spots using a screwdriver BU3 BU1 BU2 BU4 06 07 04 08 05 09 S3 1 4 ST4 2 3 1 4 ST6 Test A O D2 M5 D1 M2 S1 Wählltg Standltg zur DEE Stecker netzteil v z Fern melde ltg ST1 1 9 BR3BR4BR5 ST5 1 2 3 4 5 6 7 8 910 1 2 3 4 5 6 7 8 910 S1 S2 ...

Страница 60: ... using jumpers at the positions ST1 and ST2 Attention Any transmit level changes are not permitted within the network of the German Telekom transmit levels position ST2 level dial line at Z leased line at 600 Ω 4 5 dBm 6 dBm 6 5 dBm 8 5 dBm 10 5 dBm 8 dBm 10 dBm 12 dBm delivery state 1 2 3 1 2 3 position ST1 receive level at Z 43 dBm 33 dBm delivery state 1 5 2 6 1 5 2 6 1 5 2 6 1 5 2 6 ...

Страница 61: ...es Description 2 8 Board of the LGM 28 8D1 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 ON 1 32 c b a S1 S2 OPEN S3 1 2 3 4 5 6 ST2 ST1 BU2 S4 BU3 BU1 D5 D4 1 2 3 1 7 20 11 10 1 ST4 1 5 2 6 SET1 SET2 SET3 SET4 SET5 SET6 SET7 SET8 SET9 SET10 SET11 SET12 SET13 SET14 LB1 1 5 4 8 ST6 ...

Страница 62: ...y transmit level changes are not permitted within the network of the German Telekom transmit levels basic board ST4 levels Germany at Z Austria at 600 Ω 4 5 dBm 9 dBm 6 5 dBm 8 5 dBm 10 5 dBm 9 dBm 11 dBm 13 dBm delivery state transmit level 10 5 dBm 1 2 3 1 2 3 control board ST4 receive level 43 dBm 33 dBm delivery state receive level 43 dBm dBm Switzerland at 600 Ω 9 dBm 9 dBm 11 dBm 13 dBm 1 5 ...

Страница 63: ... Chapter 2 Switches Description 2 10 Board of the LGH 28 8D1 1 2 3 4 5 6 7 8 9 1 0 O P E N 1 2 3 4 5 6 7 8 9 1 0 O P E N 1 2 19 20 12 1 2 11 12 1 2 11 1 2 5 6 1 2 19 20 ST1 ST3 ST4 S2 S1 ST2 BU1 ST1 ST4 ST3 ST2 BU2 1 2 3 3 2 1 Basiskarte Steuerkarte ...

Страница 64: ... using jumpers In delivery state the jumpers are set for operation in the network of the Federal Republic of Germany basic control board board Country ST3 ST1 ST2 ST3 Germany 1 2 Austria 2 3 Switzerland 1 2 Legend jumper installed no jumper installed Attention After changing over from country setting the command AT W2 has to be typed after start up to reload the country specific parameters to the ...

Страница 65: ...atures 69 3 3 1 Test Loops 77 3 3 2 Storing and Displaying of Telephone Numbers 78 3 4 Report Codes 79 3 5 Changing of Register Contents 83 3 6 Activation of Control and Report Lines 86 3 7 Data Protection Protocols 89 3 7 BREAK Handling 92 3 8 Handshake 93 3 9 Module Functions 95 3 10 Password Protection 96 3 11 Remote Configuration 100 3 12 Loudspeaker 101 ...

Страница 66: ...66 Operation Manual V 34 Modems Version 07 97 AT Chapter 3 AT Commands ...

Страница 67: ...tart bit 8 data bits no parity 1 stop bit 10 bit character the automatic baud rate detection operates up to 57600 bps a command line begins always with an AT or at a command line may include several commands a command line is terminated with a carriage return character CR ASCII 13 RET Return the modem gives an OK after valid commands an ERROR is issued for invalid commands Generally most data tran...

Страница 68: ...eived characters are not returned to the DTE as an echo command parameter default description ATE n 0 1 1 character echo n 0 echo OFF n 1 echo ON AT Befehl Help Feature for AT Commands With the command AT Befehl AT Command you can display the current modem setting a short description and the valid range of parameters for the command Example AT N 1 ECC mode 0 5 OK AT B Deactivate Command Phase The ...

Страница 69: ...itch back then to transparent mode using the command ATO An existing connection may be terminated with the command ATH In direct mode a connection can be terminated by switching the the line S1 DTR The S1 option AT D n direct mode applications should be set to the values 2 or 3 ATA Answer The ATA command is designed for manual acception of an incoming call The automatical call acception is deactiv...

Страница 70: ...ial number and flash pulse P pulse dialing T tone dialing A B C D special characters for tone dialing modemstays in command mode after dialing necessary for Windows applications group separation character SPACE group separation character LABEL dial up with label and group separation characters dial pause ref to register S8 Example for automatic dialing with the ATD command Subscriber at a PABX wit...

Страница 71: ...You can initiate an early dial abortion by typing any character ref to register S20 ATDS n Dial Up with Number Storage The modem dials the dial sequence XXX that was saved in the number storage n ref to command AT Z Example AT Z1 0511 67 47 390 KE E CR ATDS 1 or ATD KE E CR The modem dials the stored number automatically The slash is only necessary if further commands are being typed AT Commands ...

Страница 72: ...32bis fixed 14400 bit s dx ATF 30 V Fast Class V FC ATF 31 V FC fixed 14400 bit s dx ATF 32 V FC fixed 16800 bit s dx ATF 33 V FC fixed 19200 bit s dx ATF 34 V FC fixed 21600 bit s dx ATF 35 V FC fixed 24000 bit s dx ATF 36 V FC fixed 26400 bit s dx ATF 37 V FC fixed 28800 bit s dx ATF 40 V 34 ATF 41 V 34 fixed 2400 bit s ATF 42 V 34 fixed 4800 bit s ATF 43 V 34 fixed 7200 bit s ATF 44 V 34 fixed ...

Страница 73: ...ode after typing the command ATO You can change between the two modes using the escape sequence e g and the ATO command If a connection is not yet established the modems do not occupy the telephone line and report an ERROR code Please make sure to type the letter O and not the number 0 in this case Example established data connection modem operates in transparent mode input escape sequence report ...

Страница 74: ...Ringing Tone In delivery state the modems feature an V 8 ringing sequence V 21 acc to ITU T As this sequence might cause problems with some fax switches during establisment of a connection the V 8 ringing tone can be deactivated command parameter default description ATU n 0 1 0 V 8 ringing tone 0 active V 8 sequence 1 inactive V 8 sequence AT G n Guard Tone At international connections line occupa...

Страница 75: ...al backup originator master 9 4 wire leased line with dial backup answerer slave 10 2 wire leased line via DBU board originator master 11 2 wire leased line via DBU board answerer slave 12 2 wire leased line with 2 wire leased line backup originator master 13 2 wire leased line with 2 wire leased line backup answerer slave 14 2 wire leased line with 2 wire leased line backup originator master 15 2...

Страница 76: ...ttempt In those cases several dial attempts might be necessary The timeout between the dial attempts for the same telephone number must be at least 5 secs between the 1st and 2nd and the 2nd and 3rd dial attempt For any further dial attempt the timeout is 60 secs The modems give an DELAYED CALL report for any dial attempt that is made within the timeout period Blocked Automatic Dialing After 12 un...

Страница 77: ... At an active loop the LED A O ANS or LB flash up constantly command parameter default description AT T n 0 1 4 6 17 20 test loops 6 17 20 0 terminate local loop initiated with AT T1 1 initiate local loop 4 accept local loop PS2 5 reject local loop PS2 6 accept local loop PS2 the loop is terminated automatically after 5 mins 17 accept local loop and local request for remote loop 18 ignore local lo...

Страница 78: ...ameters listed below are applicable with the ATD command parameter description no parameter data button function call P pulse dialing T tone dialing 0 9 dial digits special function only for tone dialing U disable V 8 calling sequency for dial up special function only for tone dialing ground key activation for 255 ms and flash pulse only for tone dialing Label short dial with label dial pause grou...

Страница 79: ...splay result codes in numerical or text form command parameter default description ATV n 0 1 1 verbose result codes 0 numerical result codes 1 text result codes ATX n Result Codes Normal Extended The modems can issue up to 70 different result codes The command ATX n is utilized to select an individual display of result codes necessary for your application command parameter default description ATX ...

Страница 80: ...ter successful dialup As an addition the transmission rate can be displayed with extended result codes With the command ATI n you can select the transmisson rate to be displayed command parameter default description AT I n 0 1 0 CONNECT reports 0 report modem transmission rate 1 report DTE transmission rate AT Commands ...

Страница 81: ...ECT 75 1200 data connection 75 1200 bit s 38 CONNECT 1200 75 data connection 1200 75 bit s 40 CONNECT 1200 HDX HX data connection 1200 bit s 50 CONNECT 300 REL data connection 300 bit s 51 CONNECT 1200 REL data connection 1200 bit s 52 CONNECT 2400 REL data connection 2400 bit s 53 CONNECT 9600 REL data connection 9600 bit s 54 CONNECT 4800 REL data connection 4800 bit s 55 CONNECT 7200 REL data c...

Страница 82: ...CONNECT 26400 COMP data connection 26400 bit s 85 CONNECT 28800 COMP data connection 28800 bit s 86 CONNECT 31200 COMP data connection 31200 bit s 87 CONNECT 33600 COMP data connection 33600 bit s 90 CONNECT 21600 data connection 21600 bit s 91 CONNECT 24000 data connection 24000 bit s 92 CONNECT 26400 data connection 26400 bit s 93 CONNECT 28800 data connection 28800 bit s 94 CONNECT 38400 data c...

Страница 83: ...s S37 inactivity timeout 0 255 0 S39 XON character 0 255 17 CTRL Q S40 XOFF character 0 255 19 CTRL S S50 transmission procedure 0 5 20 23 255 25 27 30 37 40 52 253 255 S51 DTE interface rate 2 15 20 255 255 S52 DTE baud rate 1 255 48 38400bps S54 function test button 0 5 1 S60 online phase data format 0 11 0 S61 command phase data format 0 11 0 S63 dial backup reswitching 6 255 6 60 s S64 DBU swi...

Страница 84: ...Description for a complete listing of all valid modem registers ATZ n Load User Setting n The modems initiate a reset and then recall one of the user settings specified with n 0 2 from the EEPROM AT F n Load Basic Setting The AT F command restores the factory default register settings that are stored in the ROM Only basic setting 8 may be overwritten and corresponds to user setting 2 After typing ...

Страница 85: ...startup command parameter default description AT V n 0 4 4 display settings 0 display active configuration 1 display RAM and EEPROM configuration 2 display basic settings 0 2 3 display basic settings 3 5 4 display basic setting 6 7 and user setting Example AT V0 Version 4 04 D Option Keine F255 E1 L1 M1 Q0 X4 V1 P Q2 G0 A1 C3 L0 N3 X1 K3 B3 C1 E1 M0 R0 L0 Y0 I0 X0 G0 M0 C2 D2 H0 R1 S1 T5 S00 001 S...

Страница 86: ...D S1 Option 2 AT V 25bis Befehle 0 C MNP Handshake 3 H Simuliert Hx 0 Testtaste Datentaste G Modem Flusskontrolle 0 I Connect Meldung 0 Rufannahme 1 K Break Handling 3 L Standleitung 0 Fax Speed 5 L Block Stream Mode 0 M SyncBetrieb 0 Fax ECM 1 N ECC Modus 3 R M2 Option 1 Fax Class 0 Q DEE Flusskontrolle 2 S M1 Option 1 OK 3 6 Activation of Control and Report Lines AT C n M5 Option The modems acti...

Страница 87: ... termi nates the existing connection 2 an ON OFF change at S1 108 termi nates the connection auto answer mode and line switching are not possible in OFF state 3 an ON OFF change at S1 108 causes a reset command ATZ 4 the modem dials the calling number from the dialling register Z0 at an ON OFF change at S1 108 5 as AT D3 an ON OFF change at S1 DTR causes a hardware reset 6 as AT D1 an incoming cal...

Страница 88: ...uring data trans mission phase AT S n M1 Option The commands controls the interface line M1 107 command parameter default description AT S n 0 2 1 M1 option 0 M1 107is constantly active 1 M1 107 is ON during data trans mission 2 M1 107 is set to ON before the CONNECT report AT X n Synchronous Clock During synchronous operation AT M1 the transmit clock can be set according to the parameters selecte...

Страница 89: ...e modems try to establish a data protection protocol V 42 MNP4 for each data connection This feature can be cancelled using the command AZ N n i e the modems operate in normal mode command parameter default description AT C n 0 3 3 automatical MNP detection 0 function deactivated 1 function active no data buffering 2 idle 3 function active with 200 characters data buffering AT L n MNP Block Stream...

Страница 90: ...odems is not in reliable mode no error correction V 42 or MNP4 activated data compression with V 42bis or MNP5 is possible 3 auto reliable mode the modem switches to normal mode if the remote modem is not in reliable mode no error correction V 42 or MNP4 activated data compression with V 42bis or MNP5 is possible 4 reliable mode the modems expect a fault protected connection acc to ITU T V 42 data...

Страница 91: ...equence and then the command AT Y The modem operating in originate mode now begins to initiate an error protected connection reliable link to the remote modem The remote modem which is in answer mode waits max 9 secs for the establishment of a reliable link supposed AT C1 or AT C3 is selceted If the establisment of a reliable link is not possible after the second attempt the modems remains in a no...

Страница 92: ...data only 3 7 BREAK Handling AT B n BREAK Signal Length The modems can send a BREAK signal to the remote modem The BREAK signal length is defined by the command AT B The BREAK signal is transfered during reliable mode as well Whenever the modem receives an arbitrary BREAK signal from the remote modem it is transfered only in direct mode with an identical length to the interface command parameter d...

Страница 93: ...ta flow control 1 XON XOFF data flow control the mo dems are no longer transparent if AT G1 is selected AT Q n Select Flow Control The command defines the flow control procedure to be utilized between DTE and modem Flow control is not applicable for direct mode operation Data flow control is employed whenever DTE and line rate have any differences or when the data flow has to be stopped for block ...

Страница 94: ... The command defines if the modems initiate automatic retrains Any requested retrains are acknowledged command parameter default description AT E n 0 1 1 retrain 0 no automatic retrains 1 automatic retrains on request AT R n Rate Change The command allows for control of transmission rate adaptation during the transmission procedure The rate adaptation is performed with regard of lower or higher tr...

Страница 95: ...lfduplex simulation 1 halfduplex simulation acc to ITU T V 13 3 9 Module Functions ATSET n x Software Selected DIP Switches The command allows for software selection of features that can be set with the DIP switches in compatible mode Please refer to the switches table of the compatible modems The table of modulation procedures ATF n command indicates the valid modulation procedure The command is ...

Страница 96: ...ng active password protection passwords or short names are not displayed when the command AT Z was typed command parameter default description AT M n 0 1 0 password protection 0 super password no password protection 1 super password password protection The password protection comes with the following features 3 operation modes A without callback direct switching after password input with callback ...

Страница 97: ...To distinguish operation modes the callback number must be prefixed with a combination of two characters Operation mode labeling ZA operation mode A ZB operation mode B ZC operation mode C Example AT Z1 ZC123456789 GEHEIM password callback number optional operation mode labeling Attention The password may not exceed 11 characters Small letters are transfered to capital letters when typing the pass...

Страница 98: ...is not known to any person it can be defined as a dial prefix using the command AT MP xxx An authorized caller has to enter only his individual callback number area code and subscriber number Now the modem sets the prefix for the callback number automatically whenever needed Example The modem is set up for operation mode ZB with pass word protection The PABX system needs the prefix number 89 for c...

Страница 99: ... Z n ZC PASSWORT the modem prompts for a callback number after password request General information If you type a password without a callback number the prefixed is very important If a number storage does not contain any operation mode label and no callback number the modem connects directly to the HOST if a valid password is being entered After dial up to a password protected modem the subscriber...

Страница 100: ...ation of the current configuration password The modem prompts the current and then the new password The factory default setting is FERN REMOTE which will be used again whenever you load one of the basic settings The password must have at least 4 and max 11 characters AT F Initiate Remote Configuration Due to safety reasons remote access is only possible during reliable mode Register S45 of the rem...

Страница 101: ...EAK signal in transparent mode Then you have to type the configuration password within10 secs terminated with a carriage return CR Successful initiation of remote configuration is indicated by a OK report 3 12 Loudspeaker Attention The commands decribed below are only valid for the standalone modem LOGEM 928 ATL n Loudness The built in loudspeaker can be set in three different stages command param...

Страница 102: ...102 Operation Manual V 34 Modems Version 07 97 AT Chapter 3 AT Commands ...

Страница 103: ...103 Operation Manual V 34 Modems Version 07 97 REG Chapter 4 Register Description 4 Register Allocation 105 4 1 Modem Memory Locations 105 4 2 Register Description 107 ...

Страница 104: ...104 Operation Manual V 34 Modems Version 07 97 REG Chapter 4 Register Description ...

Страница 105: ... The internal EEPROM is a read write memory that saves all stored data even after deactivation of the device You can change the EEPROM content The EEPROM stores all short dial register contents phone numbers directly With the command AT W n you can define register contents defaults of your application in the EEPROM Max 3 settings user settings 0 and 1 and basic setting 8 may be stored in the EEPRO...

Страница 106: ...l V 34 Modems Version 07 97 REG Chapter 4 Register Description RAM user settings factory defaults EEPROM ROM AT F0 7 AT W0 2 AT F8 ATZ0 2 Einschalten AT Y0 2 modem RAM basic settings 0 7 basic setting 8 user settings 0 1 ...

Страница 107: ...re not erased even after deactivation of the power supply The values stored here are read out automatically from the modem EEPROM to the working storage of the modem after typing the command ATZ n or switching the device on The 8 basic settings are stored in a read only memory ROM They are not erased even after alteration of the data stored in the EEPROM The factory default can be recalled by typi...

Страница 108: ...er the last ring S2 ESCAPE Character The register defines the escape character After a sequence of three consecutive escape characters the modems go from transparent to command mode register values default description S2 0 255 43 escape character ASCII 2Bhex S3 Carriage Return CR The register specifies the carriage return character This setting is only valid for command mode register values defaul...

Страница 109: ...7 10 100 100 carrier delay unit secs S8 Dial Pause During processing of the dial character sequences ATD or CRN the modem pauses after recognition of the comma AT command set or equal sign V 25bis command set for the time specified in register S8 before it commences with the dial string register values default description S8 1 30 2 dial pause unit secs S10 Carrier Loss Time The modem terminates a ...

Страница 110: ... S20 Dial Abort Character The register defines the modem operation with receiving of characters at the V 24 interface during the dialing process register values default description S20 0 255 255 dial abort character 0 the modem ignores all characters coming from the V 24 interface during dialing 1 254 dialing is aborted if the modem re ceives a character with the selected decimal value 255 dialing...

Страница 111: ...pecified in register S39 The XON character triggers the data terminal equipment to transfer furt her data register values default description S39 0 255 17 XON character CTRL Q 11hex S40 XOFF Character The character code for the XOFF character is specified in register S40 The XOFF character triggers the data terminal equipment not to transfer further data register values default description S40 0 2...

Страница 112: ... V FC fixed 21600 bit s dx ATF 35 V FC fixed 24000 bit s dx ATF 36 V FC fixed 26400 bit s dx ATF 37 V FC fixed 28800 bit s dx ATF 40 V 34 ATF 41 V 34 fixed 2400 bit s ATF 42 V 34 fixed 4800 bit s ATF 43 V 34 fixed 7200 bit s ATF 44 V 34 fixed 9600 bit s ATF 45 V 34 fixed 12000 bit s ATF 46 V 34 fixed 14400 bit s ATF 47 V 34 fixed 16800 bit s ATF 48 V 34 fixed 19200 bit s ATF 49 V 34 fixed 21600 bi...

Страница 113: ...0 bit s 9 14400 bit s 10 16800 bit s 11 19200 bit s 12 38400 bit s 13 57600 bit s 14 76800 bit s 15 115200 bit s 20 programmable n x 800 bit s ref to register S52 255 automatical detection transmission rates for values 2 13 are recognized S52 DTE Baudrate Multiplicator If register S52 is set to the value 20 the DTE baud rate is acc to the register setting The baud rate is calculated as follows Bau...

Страница 114: ...nection If the modem is in command mode OFFLINE the local loop is switched Data button The modem accesses the line after manual dial up if the button is pressed Disconnection is possible with DTR S1 Direct call The modem dials the number specified with the command AT Z0 xxx An existing connection is terminated with DTR S1 ref to AT D n Direct call disconnection The modem dials the number specified...

Страница 115: ...ustment of data formats for the online and command phase the modems allow for operation with different data formats i e with 7E1 during command phase and 8N1 for online phase During reliable and auto reliable mode MNP4 V 42 8 data bits are transmitted constantly The data format towards the terminal equipment is defined with register S61 This means that start stop and parity bits are added at the l...

Страница 116: ...ty 2 stopbits The modems come with an auto parity detection feature for AT commands Register S61 should be set to 0 as long as the terminal equipment operates with 10 bits per character The parity bit is being evaluated from the command data format and the modems retransfer reports with the same data format to the DTE At 9 bits character and 11 bit character the data format has to be set in regist...

Страница 117: ...r of reswitching attempts per hour The modem does not attempt further reswitchings when the max number of attempts is reached The register is designed to avoid permanent switchings at errored lines register values default description S65 1 255 4 reswitching hour S66 Reswitching Day The register defines the max number of reswitching attempts per day The modem does not attempt further reswitchings w...

Страница 118: ...blish Dial Backup Connection The register S0 may not be set to 0 if call acception is needed register values default description S68 0 6 0 establish dial backup connection 0 establish backup route automatically 1 establish after pressing Da Te button 2 establish at activated S4 SEL line 3 establish after pressing Da Te button or at activated S4 SEL line 4 as 1 call acception possible 5 as 2 call a...

Страница 119: ... command line does not start with an AT At S80 2 the interface signals are initialized automatically acc V 25bis The command interpreter operates generally acc to V 25bis The modem operates Hayes compatible whenever it detects a command line starting with an AT In this case the command echo is activated again If a command line does not start with an AT the modem operates in V 25bis mode again This...

Страница 120: ...ling mode 1 is designed for initiating a new dialing attempt every 30 secs If the terminal equipment attempts a new dialing within the 30 secs delay the modem issues a DELAYED CALL report S90 FAX Transmission Rate register values default description S90 0 5 5 FAX transmission rate 0 2400 bit s 1 4800 bit s 2 7200 bit s 3 9600 bit s 4 12000 bit s 5 14400 bit s The register defines the max transmiss...

Страница 121: ...during ECM mode The setting of register S91 is overwritten if your fax software employs the AT FECM command Any alterations of the register contents only get active after POWER ON or with the ATZ command The changed register value has to be saved with AT W n S100 Echo Character at Password Protection register values default description S100 0 255 42 echo character at password ASCII 2Ahex protectio...

Страница 122: ...or applications with activated password protection The terminal equipment does not detect an existing connection if the register is set to 0 unless a valid password was entered after the establishment of the connection At S102 1 the interface signal M3 RI is transfered to the terminal equipment This is important for terminal equipment that sets M3 RI S1 DTR only at an incoming call to establish a ...

Страница 123: ...V 25 bis Chapter 5 V 25bis Commands 5 V 25bis Commands 125 5 1 Reports 125 5 2 Dialing and Telephone Functions 127 5 3 Modem Configuration with V 25bis 131 5 3 1 DNL Command for LGM 1200H1 Operation 132 5 3 2 DNL Command for LGM 2400D2 Operation 132 ...

Страница 124: ...124 Operation Manual V 34 Modems Version 07 97 V 25 bis Chapter 5 V 25bis Commands ...

Страница 125: ...ommands are terminated with LF line feed or CR carriage return There is no character echo 5 1 Reports INC Incoming Call The modem signalizes an incoming call with an INC report If you do not disregard with the DIC command within 1 sec the modem accepts the call VAL Valid Input The incoming command is valid and will be processed INV Invalid Input The incoming command is invalid and will not be proc...

Страница 126: ...nt has failed for more than 1 second CFICB The line is occupied the modem is not ready for dialing CFIFC The modem is constantly blocked after 12 unsuccessful dialing attempts The modem can be reactivated by disabling the supply voltage and a new POWER ON CFINT No answer tone from the remote station within 100 secs If necessary this period can be changed by setting register S7 This process is only...

Страница 127: ...ect Incoming Call This command deactivates a DIC command given before Incoming calls are accepted automatically by the modems DIC Disregard Incoming Call The modems issue an INC report at an incoming call If the user or the software does not initiate a DIC command to within1 second to ignore the call the modem accepts the call ...

Страница 128: ...alid parameters for dial character sequence xxx Causes a programmable dial pause The period is specified in register S8 Causes a pause of 1 second and W Dial pause recognition and Causes a short line inetrruption flash pulse The feature can be activated at tone dialing only Activate ground key button for 255ms 0 9 Characters for phone number or label ABCD Special functions only for tone dialing Se...

Страница 129: ...el wait for 3 s programmable pause 0 central office request e g for PABX systems with 0 here dial tone recogniition subscriber telephone number 0511 area code Hanover wait 1 s dial pause oiptional 12 subscriber phone number separation character individual label 49 national code for Germany 511 area code Hanover 98 individual phone number LF termination of character string V 25bis Commands ...

Страница 130: ...Max 20 short dial registers are available e g CRS 1 LF PRN n xxx Set Short Dial Register The command allows to store max 20 dial character strings xxx with 40 characters each permanently The information remains stored even after deactivation of the modem The parameters necessary for dialing e g P etc are stored by the modem with the phone number e g PRN 1 P1234567890 LF The phone number 1234567890...

Страница 131: ...or any modem type to be emulated in compatible mode As an addition the modem to be emulated can be changed during the transmission phase Any settings for V 25bis command phase are performed with DIP switches The DNL sequence starts with the DNL character string and a list of para meters that is separated by a semicolon Parameters that are not to be changed are marked with an empty entry in the lis...

Страница 132: ...timulated Controlled carrier control for V 21 The bold characters are significant Example entry 1 2 3 4 5 6 7 8 DNL 300 300 A L E M A S LF 5 3 2 DNL Command for LGM 2400D2 Operation entry 1 1200 1200 2400 2400 entry 2 Synchronous Asynchronous entry 3 8 9 10 11 T1 T2 T4 asynchronous data bits or synchronous clock source entry 4 250 ms 10 s carrier timeout entry 5 Overspeed Normal entry 6 S2 Const c...

Страница 133: ...up Features 6 Dial Backup Features 135 6 1 Function of the Dial Backup Board 135 6 2 Installation of the DBU Board Standalone Version 135 6 3 Installation of the DBU Board Rackmounted Version 138 6 4 Telephone Access Line Selection 139 6 5 Access Line Alternatives 141 ...

Страница 134: ...134 Operation Manual V 34 Modems Version 07 97 Chapter 6 Dial Backup Features ...

Страница 135: ...dial backup DBU board The secondary path switched connection is realized with the line interface of the main board The DBU board has no DIP switches or jumpers as the board is detected automatically by the modem after installation 6 2 Installation of the DBU Board Standalone Version First remove all cables from your LOGEM 928 and disconnect the telephone access line from your wall socket Now you c...

Страница 136: ... 4 ST4 2 3 1 4 ST6 Test A O D2 M5 D1 M2 S1 Wählltg Standltg zur DEE Stecker netzteil v z Fern melde ltg ST1 1 9 BR3 BR4 BR5 ST5 Place the modem in front of you as shown below and remove the jumpers BR3 BR5 at the position ST5 Then remove the blind jumper at the jack BU2 Standleitung leased line Fig 6 1 Bottom of the LOGEM 928 Fig 6 2 Main Board of the LOGEM 928 ...

Страница 137: ... the board with the safety screw M2 x 5 as shown in fig 6 3 Now the modem housing has to be closed Insert the front side into the lid of the lower part of the casing and fix the two parts of the casing with a slight press until the fixing bracket snaps in with an audible sound Your modem is now operational again Please refer to the following chapter for further information concerning dial backup a...

Страница 138: ...M LGM 28 8D1 Da Te Hörer Answ PM 1 S1 M1 Leitung 9 4 5 Fig 6 4 LGM 28 8D1 Installation of the DBU board Place your modem if front of you as shown below and remove the jumpers BR3 BR5 at the position ST5 Then remove the jumpers BR6 BR11 at ST4 Keep the jumpers in a safe place as you need them after a deinstallation of the dial backup board 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 ON 1 32 c b a S1 S2 OPEN S3...

Страница 139: ...the board with the safety screw M2 x 5 as shown in fig 6 6 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 ON 1 32 c b a S1 S2 BU2 S4 BU3 BU1 D5 D4 Fig 6 6 LGM 28 8D1 with DBU Board 6 4 Telephone Access Line Selection The 96pole connector is electrically allocated acc to CEPT standard The telephone lines are allocated according to the line operation mode In delivery state the modems are allocated in a way that is...

Страница 140: ...th the dial backup board The allocation of the VG connector changes according to the selected switching alternative if the modem operates at telephone access lines with CEPT standard ref to fig 6 8 In such cases the allocation of the connectors is performed using jumpers that are installed at the dial backup board The jumper positions for the three possible switching alternatives are printed on th...

Страница 141: ... c3 a3 4 wire DBU acc to CEPT c7 a7 b4 b6 c3 a3 c5 a5 delivery state 1 in delivery state the connectors La and Lb are for 2 wire leased line operation as well 2 at 2 wire leased line Tx Rx The jumpers on the DBU board have to be set according to the table shown above dial line 1 3 5 7 9 12 15 17 19 leased line CEPT 2 4 5 7 19 20 2 wire DBU CEPT 2 4 6 8 10 13 15 17 19 20 4 wire DBU CEPT 2 4 5 7 11 ...

Страница 142: ...142 Operation Manual V 34 Modems Version 07 97 Chapter 6 Dial Backup Features ...

Страница 143: ...eased Line Operation Standalone Version 151 7 2 1 Leased Line Operation Rackmounted Version 152 7 2 2 2 Wire Leased Line 153 7 2 3 4 Wire Leased Line 156 7 2 4 Leased Line Operation with Dial Backup 157 7 2 5 Leased Line Operation with Manual Dial Backup 158 7 3 Leased Line Operation 163 7 4 Lightning and Overvoltage Protection 167 ...

Страница 144: ...144 Operation Manual V 34 Modems Version 07 97 Chapter 7 Applications ...

Страница 145: ...ssible if register S45 1 Password During existing connections any modem has to be remotely configured must have a password For this reason only authorized staff can perform any configurations with the modems In delivery state the password FERN is preset If you employ the remote configuration feature you should change the password using the command AT P Data Protection Remote configuration is only ...

Страница 146: ... command line has to start with an AT and must be terminated with CR carriage return The AT commands in this manual are valid with only a few exceptions that will be mentioned later The modems are prepared for complete reconfiguration To keep any changes permanently they must be stored with a AT W command New configurations get active after a reset ATZ n or OFF ON switching of the power supply Att...

Страница 147: ...ufbau Eingabe Meldung Eingabe Meldung Eingabe Eingabe Meldung Meldung Eingabe Meldung Eingabe Meldung Fernkonfiguration einleiten wenn i O Von diesem Zeitpunkt an ist das lokale LOGEM 928 wieder datentransparent Mit ATS45 0 wird die Fernkonfiguration deaktiviert Das LOGEM 928 ist beim nächsten Verbindungsaufbau nicht mehr fernkonfigurierbar LOGEM 928 Benutzereinstellung 2 geladen S1 M2 D1 M5 D2 A ...

Страница 148: ...y for remote configuration The newly installed modem is called from a central using a terminal or PC The operating modes may be set according to the actual application AT CR OK OK AT WZ NO CARRIER Eingabe Meldung Eingabe Meldung Eingabe Meldung AT CR Verbindungsabbau Umkonfigurieren und Abspeichern DEE ZENTRALE LOGEM 928 LOGEM 928 Verbindungsaufbau Einleiten der Fernkonfiguration S1 M2 D1 M5 D2 A ...

Страница 149: ... of a connection when both modems are in the data transmission phase The remote configuration password terminated with a CR has to be part of the next 40 characters to be transmitted within 10 seconds After detection of the password the remote modem ackowledges the remote access mode with an OK The further procedure is according to application 1 after the CONNECT REMOTE report Applications DEE TER...

Страница 150: ...connection are lost and have no further effect If you have any doubts concerning the correctness of alterations you should terminate the connection without saving any parameters As there are no limitations concerning remote configuration some commands only allow for single remote access Examples At V 22bis operation the commands AT N0 or AT N1 deactivate the data protection protocols Register S45 ...

Страница 151: ...eased line dial backup board AT commands AT L10 originate AT L11 answer telephone access RJ12 jack switched line TAE6N jack pin 1 2 2 wire leased line with dial backup AT commands AT L6 originate AT L7 answer telephone access RJ12 jack switched line TAE6N jack RJ12 jack leased line TAE6N jack pin 1 2 4 wire leased line dial backup board AT commands AT L4 originate AT L5 answer telephone access RJ1...

Страница 152: ... c3 2 wire leased line leased line interface AT commands AT L10 originate AT L11 answer leased line VG connector b4 b6 2 wire leased line with dial backup leased line interface AT commands AT L6 originate AT L5 answer leased line VG connector b4 b6 switched line VG connector a3 c3 or TAE6N jack pin 1 2 4 wire leased line leased line interface AT commands AT L4 originate AT L5 answer leased line VG...

Страница 153: ...he modems allows for modem operation at a 2 wire leased line using the switched line interface In this case line switching is performed using the TAE6N jack The signal is connected to the pins 1 and 2 Such point to point connections allow for transmission ranges of about 10 km dependent from the implemented cable and the line routing Example 1 Two terminal equipments are to be connected via a leas...

Страница 154: ...AT Q2 data flow control RTS CTS AT D3 line access only at S1 ON ATF40 modulation acc to V 34 ATS51 12 interface rate 38 4 kbps ATS60 0 S61 0 set data format N81 AT C0 deactivate data compression ATS20 0 ignore characters during command phase AT L3 modem operates as answerer slave ATE0Q1 command echo and reports OFF AT W save configuration At a leased line configuration the modems have to operate w...

Страница 155: ...et to ON and S2 6 S2 8 and S2 9 to OFF for this purpose The other switches are set according to the necessary modem functions Example Setting Standalone Version Modem A DIP switch S1 1 S1 3 S1 5 S1 7 S1 10 ON DIP switch S1 2 S1 4 S1 6 S1 8 S1 9 S2 1 S2 2 S2 3 S2 4 S2 5 OFF Modem B DIP switch S1 1 S1 3 S1 5 S1 7 S2 1 ON DIP switch S1 2 S1 4 S1 6 S1 8 S1 9 S1 10 S2 2 S2 3 S2 4 S2 5 OFF Example Setti...

Страница 156: ...for connection of asynchronous and synchronous terminal equipment Modem configuration is performed during mixed mode using the DIP switches or AT commands Starting with the basic setting 0 the parameters AT L4 modem 1 and AT L5 modem 2 have to be set with other values to change the configuration For synchronous mode V 25bis the 4 wire setting is selected using the DIP switches S1 7 and S1 8 During...

Страница 157: ... The LED indicators A O or ANS rackmounted version are not active for this operation mode The modems change automatically to switched line operation if the leased line is interrupted The modem that has a phone number in his phone number storage Z0 initiates the establishment of a connection To avoid any calling conflicts only one of the communicating modems may have an allocated number storage Z0 ...

Страница 158: ...ne Connection 7 2 5 Leased Line Operation with Manual Dial Backup Often 2 or 4 wire connections are implemented for data transmission between local and remote computers The modem establishes a switched line connection if the leased line is disturbed or broken This causes ad ditional line costs for the period the connection exists even if there is no permanent data transfer The configuration with m...

Страница 159: ...ore DTR echo reports OFF S20 0 W S20 0 W and save Now you must deactivate both modems and switch them on again After a short POWER UP test the modems access the leased line and establish a connection At a leased line interruption for testing purposes the modems switch to the dial line interface without establishing a connection Now the V 21 modem that is located on the dial backup board is switche...

Страница 160: ...OGEM 928 Modem A LOGEM 928 Modem B LOGEM 928 S1 M2 D1 M5 D2 A O Da Te LOGEM 928 Modem C LOGEM 928 Example B A central station is connected to its remote partners via 2 wire leased lines At failures on the leased line the remote station can establish a connection to the switched line modem C if necessary using the interface line S2 SEL Moreover the central station can access the remote station usin...

Страница 161: ...Q1 AT D E0 Q1 ignore DTR echo reports OFF S20 0 W S20 0 W and save Now you must deactivate both modems and switch them on again After a short POWER UP test the modems access the leased line and establish a connection At a leased line interruption for testing purposes the modems switch to the dial line interface without establishing a connection Now the V 21 modem that is located on the dial backup...

Страница 162: ...ve switched line connection the leased line is reactivated whenever the integrated V 21 test modem detects it operational In such a case the switched line is deactivated automatically Attention 1 This operation mode with mutual call acception is not applicable if both modems try to establish a connection at the same time as they would detect the opposite station occupied 2 Both modems have to be e...

Страница 163: ...es a transmission range of max 15 km is possible Two modems can be switched in back to back operation for routes of about 20 25 km Connection or transmission problems are often caused by exceeding basic noises disturbing tones or pulses low crosstalk attenuation or an exceeding basic attenuation Basic attenuation should not be higher than 30 dB at the frequency band 300 3100 Hz where the modems op...

Страница 164: ... 2400D2 V 22bis Modem 1 DIP switches S1 5 S1 9 S2 9 S2 10 ON all other DIP switches OFF Modem 2 DIP switches S1 5 S1 9 S2 1 S2 9 S2 10 ON all other DIP switches OFF the LED S2 RTS shows green if the data terminal equipment DTE is ready to transmit and the control line is activated the LED A O ANS blinks green if the modem switches the leased line and initiates the establishment of a connection han...

Страница 165: ...o overdriving of the modem receiver For this reason a resistor of about 470 ohms should be installed at each wire ref to fig below Example 3 A leased line of about 25 km can be set up by switching of two modems in back to back operation for signal regeneration ref to fig below Modem 1 Modem 2 Modem 3 Modem 4 DEE DEE V 24 Kreuzkabel V 24 V 28 V 24 V 28 V 24 V 28 1 2 3 4 5 6 N F La Lb E G b2 a2 1 2 ...

Страница 166: ...DSR TxD RxD RTS CTS DTR DSR GND 7 2 3 4 5 20 6 7 2 3 4 5 20 6 Tab Wiring Plan for Asynchronous Cross Cable The modems 2 and 3 have to be connected for this application with a cross cable zero modem cable The cross cable is to be utilized for asynchronous application Applications ...

Страница 167: ...o electro magnetical fields and line overvoltages The modems feature a special protection against overvoltages from the telephone access side ref to block diagram below FKS 8 E La Lb a2 b2 G 3 5 2 8 1 4 115 V 115 V 115 V 115 V For leased line applications and especially for operation in areas with frequent thunderstorms further protection should be installed Lightning protection is available in Ge...

Страница 168: ...168 Operation Manual V 34 Modems Version 07 97 Chapter 7 Applications ...

Страница 169: ... 6N 178 Appendix B4 Telephone Access Cable FKS8 TAE 6N 179 Appendix C1 Data Interface LGM 28 8D1 180 Appendix C2 Interfaces LGM 28 8D1 181 Appendix C3 V 24 Interface Allocations 182 Appendix C4 Asynchronous Standard Connection Connection 183 Appendix C5 Synchronous Standard Connection 184 Appendix C7 Modem to Modem Cross Cable asynchronous 185 Appendix C6 Allocation of the 25pole Sub D Jack 185 Ap...

Страница 170: ...170 Operation Manual V 34 Modems Version 07 97 Chapter 8 Appendix ...

Страница 171: ...nchronous setting the modems operate with automatical detection of the modulation procedure at the transmission side Towards the data terminal equipment DTE the modem operates with automatical detection of the transmission rate autobaud The data format is set to 1 start bit 8 data bits no parity and 1 stop bit The ITU T protocols V 42 and V 42bis are activated for safe data transmission The modems...

Страница 172: ...03 S51 004 S54 001 S60 000 S61 000 S62 030 S63 006 S64 001 S65 004 S66 016 S67 000 S80 000 S81 000 S90 005 S91 001 S100 042 S101 000 S102 000 This basic setting allows for modem operation with btx applications at 2400 bit s Data protection protocols are deactivated and the modems operate in direct mode During command phase the modems operate with AT commands Switches S2 6 S2 7 S2 8 S2 9 S2 10 S3 2...

Страница 173: ...00 S90 005 S91 001 S100 042 S101 000 S102 000 In delivery state the basic setting 8 is identical to basic setting 0 as an addition remote configuration register S45 1 is possible as well The modem is operational without the control line S1 108 The command AT W2 overwrites these values and allows for defining of an individual basic setting Switches S2 6 S2 7 S2 8 S2 9 S2 10 S3 2 S3 3 S3 4 S3 5 S3 6...

Страница 174: ...8 Appendix Appendix B1 Connection to a TAE 6NF Socket Switched Line Operation 1 2 3 4 5 6 N F La Lb E Modemsteuerung Belegt Erkennung Ruf Erkennung u 2 La a2 Lb b2 G E u 2 nsi e La Lb E La a2 Lb b2 G E Telefon 1 2 3 4 6 5 G b2 a2 RJ12 TAE 6N TAE 6F a2 b2 G ...

Страница 175: ...peration Manual V 34 Modems Version 07 97 Chapter 8 Appendix B2 Telephone Access Jacks LOGEM 928 1 2 3 4 1 switched line and 2 wire leased line 2 2 4 wire leased line with optional dial backup board Appendix ...

Страница 176: ...3 Telephone Access Jacks LGM 28 8D1 LOGEM LGM 28 8D1 Da Te SERV ANS PM1 S1 M1 c b a 1 32 FKS8 Jack VG Connector For switched line operation and 2 4 wire leased line with dial backup the FKS8 jack is connected in parallel to the related pins of the VG connector Appendix ...

Страница 177: ...177 Operation Manual V 34 Modems Version 07 97 Chapter 8 Appendix B4 Telephone Access Jacks LGH 28 8D1 Appendix ...

Страница 178: ...switched line cable leased line cable TAE colour descr RJ12 TAE colour descr RJ12 1 grey La 5 1 grey Tx a 2 wr 5 2 brown Lb 2 2 brown Tx b 2 wr 2 3 yellow G 4 3 yellow Rx a 4 4 green E 3 4 green Rx b 3 5 white b2 1 5 white idle 1 6 rosa a2 6 6 rosa idle 6 shield S 4 green 5 white 6 rosa yellow 3 brown 2 grey 1 coding N TAE 6N RJ12 Appendix ...

Страница 179: ...Appendix B4 Telephone Access Cable FKS8 TAE 6N connector allocation 1 white La 2 brown Lb 3 green G 4 yellow E 5 grey b2 6 rosa a2 shield S 4 yellow 5 grey 6 rosa green 3 brown 2 white 1 coding N TAE 6N FKS8 brown green yellow white grey shield rosa Appendix ...

Страница 180: ...r DTE operational S1 2 16a M5 109 DCD data carrier detect 18c M3 125 RI incoming call 19a PM1 142 TM test status 22a T2 114 TXC transmit clock from DCE 11a T4 115 RXC receive clock from DCE 13a T1 113 TXC transmit clock from DTE 24a S4 111 activate high transmission rate DTE 20a M4 112 high transmission rate ON DCE 22c PS2 140 RL remote test loop 18a PS3 141 LL local test loop 14a Voltage levels a...

Страница 181: ... 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 a GND Lb Rx a b2 HD1 T2 HD2 T4 PS3 S1 PS2 M3 S4 T1 PM1 5V 5V GND GND b GND G Tx a 2 w Tx b 2 w E ext call generator S1 1 SET1 S1 2 SET2 S1 3 SET3 S1 4 SET4 S1 5 SET5 S1 6 SET6 S1 7 SET7 ext data button S1 8 SET8 S1 9 SET9 S1 10 SET10 S2 1 SET11 S2 2 SET12 S2 3 SET13 S2 4 SET14 VF signal for amplifier 5V 5V GND GND c GND La R...

Страница 182: ... 111 112 140 113 GND GND TXD RXD RTS CTS DSR DTR DTR DCD TXC RXC RI LL TM SPD RL TXC 8 V 8 V prot ground ground transmit data receive data request to send clear to send data set ready data terminal ready DTE ready data carrier detect transmit clock receive clock ring indicator local loop test state set high transmmission rate high transam speed remote loop transmit clock positive aux voltage negat...

Страница 183: ... 1 S 1 2 M1 M5 M3 PS2 M4 S4 PM1 PS3 101 102 103 104 105 106 108 1 108 2 107 109 125 140 112 111 142 141 1 7 2 3 4 5 20 20 6 8 22 21 12 23 25 18 prot ground ground transmit data receive data request tosend ready to send data terminal ready DTE ready data set ready ring indicator incoming call remote loop high transm rate set high transm rate tset state local loop DTE Modem ...

Страница 184: ... M4 S4 PM1 101 102 103 104 105 106 108 1 108 2 107 109 125 140 141 115 114 113 112 111 142 1 7 2 3 4 5 20 20 6 8 22 21 18 17 15 24 12 23 25 prot ground ground transmit data receive date request to send ready to send data terminal ready DTE ready data set ready receive level ringindicator remote loop local loop receive clock transmit clock Sendeschrittakt high transm rate set high transm rate test ...

Страница 185: ...cc to ISO 2110 for DTE connection A V 24 interface cable is part of the delivered items The signal report and data lines come with V 28 levels 25pole Sub D Jack 14 15 16 17 18 19 20 21 22 23 24 25 1 2 3 4 6 7 8 9 10 11 12 13 5 Appendix C7 Modem to Modem Cross Cable asynchronous TxD RxD RTS CTS DTR DSR TxD RxD RTS CTS DTR DSR GND 7 2 3 4 5 20 6 7 2 3 4 5 20 6 Appendix ...

Страница 186: ...e indicates the modem specification The K number is being augmented after any alterations concerning software or hardware 2 Software Mode AT Commands After typing the command ATI0 the modem issues the report listed below Version 3 03 20 06 96 Dok Nr 0106 01 0114 01 Here the modem comes with the software version 3 03 Please have your K number or software version number ready at any technical reques...

Страница 187: ...8 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 SP 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ a b c d e f g h i j k l m n o p q r s t u v w x y z DEL 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 ...

Страница 188: ...Read Only Memory The factory defaults are stored in the ROM where they are available permanently EEPROM Electrically Erasable Programmable Read Only Memory User configuration and phone numbers are stored here with a specific command direct call The direct call option allows for dialing a phone number stored with AT Z0 from the number directory without a dial command just by setting the interface l...

Страница 189: ...or constant interface rates towards the terminal equipment if multimode modems are employed that support different modulations data flow control Data flow control is implemented to avoid data loss during transmisson Data loss may occur whenever the data buffer of the modem overflows The modem has to prevent in such cases the terminal equipment from transmitting further data Data flow control is po...

Страница 190: ...s occur data compression Due to the data compression the data of the trans mitting modem is compressed with special algo rithms and transmitted The receiving modem de compresses these data and transfers it to the terminal equipment Data compression is only applicable with activated data protection protocols MNP 1 4 Data Protection Protocols MNP 5 Data Compression Procedure V 42 Data Protection Pro...

Страница 191: ... 52 power supply power supply adapter inp 230V 50HZ 7VA 5 V 5 24 V 20 outp 7V 50Hz 4 2VA ca 300 mA max 100 mA electrical values for line switching return loss attenuation symmetrie 14 dB 55dB at 300 3400 Hz against Z voltage resistance betw VF side and V 24 interf 2 kV DC resistance ca 300 Ω loop current 11 60 mA DTE interface mechanical 25pole sub D jack 96pole connector 25pole sub D jack acc to ...

Страница 192: ...192 Operation Manual V 34 Modems Version 07 97 Chapter 8 Appendix ...

Страница 193: ...tomatic dialing 17 70 autoreliable fallback character 91 autoreliable mode 189 190 B Backpanel LOGEM 928 20 backspace character 109 backup number 18 basic setting 0 171 basic setting 34 basic setting 1 172 basic setting 8 173 baud rate detection 67 BLACKLISTED 76 block mode 8 9 Board of the LGH 28 8D1 63 Board of the LGM 28 8D1 61 Board of the LOGEM 928 59 BREAK 93 BREAK signal 101 149 C callback ...

Страница 194: ...a protection 17 data protection protocols 15 16 145 150 DBU 188 190 DBU board 137 DCE 188 190 DELAYED CALL 76 Dial Abortion 71 dial backup 118 188 dial backup board 75 135 dial prefix 100 dial sequence 71 dial up 71 dialing mode 120 dialing process 71 DIP switches 15 16 33 direct call 188 190 direct mode 188 190 DNL commands 15 16 DTE 188 190 duplex operation 95 E echo character 121 ECM mode 121 E...

Страница 195: ...t Panel LOGEM LGH 28 8D1 23 G glossary 188 guard tone 74 H halfduplex simulation 95 Hayes standard 67 I index 193 installation and commissioning 26 ITU T 15 16 18 J jumpers 138 L leased line 157 leased line operation 151 LGM 1200H1 Operation 38 LGM 2400D2 Operation 40 lightning and overvoltage protection 167 line feed 108 line interface 15 16 line selection 75 LOGEM 914 LGM 14 4D1 Synchronous V 25...

Страница 196: ...ed mode 16 34 Mixed Mode Switches 43 MNP 1 4 190 MNP 5 190 MNP block length 89 MNP4 145 150 modem cross cable 185 modem description 15 modem identification 73 186 modem message 29 modem settings 86 N normal mode 189 190 number of rings 108 O operation mode labeling 98 operation modes 15 34 P PABX 70 password 18 145 password protection 18 96 POWER ON 34 pulse dialing 74 R rackmounted version 15 27 ...

Страница 197: ...1 speed buffering 189 190 standalone modem 15 standalone version 26 stream link mode 89 super password 96 switched line 18 157 switches description 33 switches tables 33 synchronous standard connection 184 T TAE 6NF socket 174 technical data 191 telephone access cable FKS8 TAE 6N 179 telephone access cable RJ12 TAE 6N 178 telephone access jacks 175 test loops 77 tone dialing 74 top rail installati...

Страница 198: ...ems Version 07 97 Chapter 8 Appendix U user setting 35 84 87 V V 24 interface allocations 182 V 25bis commands 17 125 V 42 145 150 190 V 42bis 190 verbose result codes 79 X XOFF character 111 XON character 111 XON XOFF character 94 ...

Страница 199: ...199 Operation Manual V 34 Modems Version 07 97 Chapter 8 Appendix ...

Страница 200: ...200 Operation Manual V 34 Modems Version 07 97 Chapter 8 Appendix ...

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