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MultiModemDSVD User Guide

72

4. Type 

AT&T3

 and press ENTER. Once you receive an 

OK

 message from your

modem (if responses are enabled), your modem is placed in digital loopback mode.

5. Have someone enter data from the remote keyboard. For this test, typing multi-

ple uppercase 

U

 characters is a good way to send an alternating test pattern of

binary ones and zeros. The data received by your modem enters its analog receiver,
is converted to digital data, is reconverted into analog, and then is transmitted
back to the remote modem. Your modem passes this test if the data received on
the remote monitor is the same as the data entered from the remote keyboard.

6. To exit the test, type the escape sequence 

+++AT

 and press ENTER. This puts

the modem in online command mode. The modem should respond with an 

OK

message. If you wish to stay on line with the remote modem for normal data
transmission, type 

AT&T

 and press ENTER to exit the test, then type 

ATO

 and

press ENTER to return on line. If you wish to terminate the call, type 

ATH

 and

press ENTER to hang up.

Содержание MT5600DSVD2

Страница 1: ......

Страница 2: ...wing measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Plug the equipment into an outlet on a circuit different from that to which the rece...

Страница 3: ...iii...

Страница 4: ...Description A 5 13 99 Manual released Trademarks MultiModemDSVD Multi Tech and the Multi Tech logo are trademarks of Multi Tech Systems Inc IBM is a trademark of International Business Machines Corpor...

Страница 5: ...dows 9 Step 4 Install and Configure Your Software 10 Step 5 Call the Multi Tech BBS 11 Trio DataComm 11 Windows HyperTerminal 12 Windows Terminal 13 Step 6 Send a Fax 14 Trio Fax 14 Microsoft Fax 14 V...

Страница 6: ...Software Can t Run at the Same Time 57 Appendix A Regulatory Compliance FCC Part 68 Telecom 60 Fax Branding Statement 61 Canadian Limitations Notice 62 International Modem Restrictions 62 Commission D...

Страница 7: ...p 2 Identify the Current Firmware Version 78 Multi Tech Web Site 78 Multi Tech BBS 78 Step 3 Download the Upgrade File 79 Multi Tech Web Site 79 Multi Tech BBS 79 Step 4 Extract the Upgrade Files 79 S...

Страница 8: ...MultiModemDSVD User Guide viii...

Страница 9: ...1 Introduction...

Страница 10: ...s the voice interface Both local and remote modems must have compatible DSVD technology to support the DSVD function The MultiMo demDSVD is compatible with the industry standard ITU T V 70 DSVD specif...

Страница 11: ...ly disables compression when transferring already compressed files Can autodial redial pulse rotary and touch tone dial Detects dial tones and busy signals for reliable call progress detection Compati...

Страница 12: ...f these items are missing please contact Multi Tech Systems or your dealer dis tributor see Appendix D for information on contacting Multi Tech via telephone fax bulletin board service and the Interne...

Страница 13: ...2 Quick Start...

Страница 14: ...er s serial port on the other end 4 A nearby AC power outlet 4 A nearby telephone line jack 4 A telephone handset If you are new to computers see Chapter 3 Features for more information about the requ...

Страница 15: ...the feet simply peel them from their paper strip and press them into the recesses on the bottom of the modem Figure 2 1 Mounting the feet Step 2 Connect the Modem to Your System Placing the modem in...

Страница 16: ...ction For DSVD calls plug a telephone into the modem s PHONE jack Note The telephone can operate only when the modem is turned on Power Connection Plug the power supply module into an AC power outlet...

Страница 17: ...em models appears 3 Insert the MT5600DSVD2 setup disk into your floppy drive and then click Have Disk 4 In the Install from Disk dialog box select the drive the installation disk is in and then click...

Страница 18: ...ring with a carriage return character M Note To change the modem s default configuration type new commands in the software s terminal window adding the W command to store them in the mo dem s nonvolat...

Страница 19: ...ile menu click Access Phonebook The Dialing Directory opens 4 In the Dialing Directory click New Entry The Edit Create Host Information dialog box opens 5 In the Name box type Multi Tech BBS and click...

Страница 20: ...ed in the Connect using box then click OK 6 In the Connect dialog box click Dialing Properties 7 Make any necessary changes in the Where I am and the How I dial from this location boxes If you must di...

Страница 21: ...e then click Dial to dial the BBS You will know you have reached a modem by the harsh sounds of the modem handshake 5 When the BBS welcome screen appears in the HyperTerminal window type your first na...

Страница 22: ...r sheet and then click Next Dialog 8 Type a cover sheet message and then click Next Dialog A preview window opens 9 If the fax looks correct click Send A dialog box appears that shows the progress of...

Страница 23: ...ick Add file In the Open a file to attach dialog box select the registration file and click Open The registration file is added to the Files to send list box 11 Click Next then click Finish 12 Microso...

Страница 24: ...program that supports DSVD such as the program included with the modem or by manually issuing AT commands to the modem as described in the following sections To Turn On DSVD Mode 1 In the terminal wi...

Страница 25: ...ER to reset the modem to its default configuration This action ensures that the modem is in automatic DSVD mode 3 When the modem responds by displaying RING on the screen type ATA and press ENTER to a...

Страница 26: ...MultiModemDSVD User Guide 18...

Страница 27: ...3 Features...

Страница 28: ...to the contents of your modem package you need the following equipment Computer Your modem can be connected to any computer with an RS 232 V 24 serial port such as most PCs It can also be connected to...

Страница 29: ...alled with the stroke of a key or the click of a mouse Communication software must be set up or config ured before you can use it Connections To use your modem you must connect it to your computer RS2...

Страница 30: ...on the mo dem A power ON OFF switch is located on the right side of the modem Note Use only the power supply supplied with the modem Use of any other pow er supply will void the warranty and could da...

Страница 31: ...on server capabilities and line conditions 33 V 34 Mode 33 600 16 800 bps The 33 LED lights whenever the modem con nects in V 34 mode 14 V 32bis Mode 14 400 bps The 14 LED lights whenever the modem co...

Страница 32: ...for the default modem baud rate lights The default rate for the modem is 56K bps After a call the LEDs for the connection s baud rate remain lit until another call is made or the modem is reset If yo...

Страница 33: ...4 AT Commands S Registers Result Codes...

Страница 34: ...ommands automatically Fortunately communication programs make daily operation of modems effortless by hiding the commands from the user Most users therefore need to use AT commands only when reconfigu...

Страница 35: ...when the modem is at 300 or 1200 bps Command Cn Carrier Control Values n 1 Default 1 Description C0 Transmit carrier always off Not supported C1 Normal transmit carrier switching included for backward...

Страница 36: ...alues y 0 3 Default none Description Dial a number previously stored in directory y by the Zy x command Example ATDS 3 dials the number in directory 3 Command En Echo Command Mode Characters Values n...

Страница 37: ...les automode The modem attempts a handshake at the speed set by S37 or if S37 0 at the most recently sensed serial port speed N1 Enables automode The modem attempts a handshake at the speed set by S37...

Страница 38: ...ption Read value of register Sr and display it in 3 digit decimal for mat E g S2 gives the response 043 If the short form AT is used the last accessed S register is read Command T Tone Dialing Values...

Страница 39: ...isconnect Values n 0 or 1 Default 0 Description Y0 Disable sending or responding to long space break signal on disconnect Y1 Enables long space disconnect In non error correction mode the modem sends...

Страница 40: ...dem returns to asynchronous command state without disconnecting Q2 Q3 DTR drop causes the modem to hang up Autoanswer is inhibited D2 Q0 Q6 DTR drop causes the modem to hang up Autoanswer is inhibited...

Страница 41: ...us to the Q6 command Command Pn Pulse Dial Make Break Ratio Values n 0 Default 0 Description P0 Selects a make break dial ratio of 39 61 at 10 pulses per sec ond Command Qn Asynchronous Communications...

Страница 42: ...ores acknowledgment for remote digital loopback request T6 Requests a remote digital loopback V 54 Loop 2 without self test If no connection exists ERROR is returned The CON NECT XXXX message is displ...

Страница 43: ...telephone dial string x in memory location y Each tele phone number dial string can contain up to 34 digits Dial the stored number using the command ATDS y Command Cn Data Compression Control Values...

Страница 44: ...ifies the PCM code type for 56K modulation Note how ever that the modem automatically selects the code type if the server sends the proper ID U0 Selects Law coding used in North America and Japan U1 S...

Страница 45: ...em K1 Clear data buffers and send break to the remote modem K2 Same as K0 K3 Send break immediately to the remote modem K4 Same as K0 K5 Send break to the remote modem in sequence with the trans mitte...

Страница 46: ...nect messages are controlled by the X and W command settings V1 Enables single line connect messages in the format CONNECT Serial Port Speed Modulation Protocol Compres sion Line Speed Voice and Data...

Страница 47: ...0 38667 37333 36000 34667 33333 32000 30667 29333 or 28000 56000 54000 52000 50000 48000 46000 44000 42000 40000 38000 36000 34000 or 32000 300 1200 Notes 1 See optional automode min_rate and max_rate...

Страница 48: ...ection K0 Disables V 42 LAPM to MNP 10 conversion K1 Enables V 42 LAPM to MNP 10 conversion K2 Enables V 42 LAPM to MNP 10 conversion inhibits MNP Ex tended Services initiation during V 42 LAPM answer...

Страница 49: ...bles or disables Caller ID recognition and reporting CID 0 Disables Caller ID CID 1 Enables formatted Caller ID reporting of ICLID SDM Single Data Message and MDM Multiple Data Message packets CID 2 E...

Страница 50: ...ble on the Multi Tech Web site at http www multitech com support manuals 82039201 pdf Command SMS n Data DSVD Mode Values n 0 1 or 3 Default 3 Description SMS 0 Data mode SMS 1 DSVD mode SMS 3 Automat...

Страница 51: ...CLS 8 Voice audio mode All telephone calls initialized by CLS 8 result after successful call progress in the modem operating in online voice command mode Command MDL Identify Model Values n a Descript...

Страница 52: ...ckspace S6 seconds 2 255 2 Sets the time the modem waits after it goes off hook before it begins to dial the telephone number S7 seconds 1 255 50 Sets the time the modem waits for a carrier signal bef...

Страница 53: ...0 Sets the length of time that the modem waits before disconnecting when no data is sent or received A value of zero disables the timer S32 decimal 0 255 17 Sets the ASCII code for the XON character...

Страница 54: ...if the modem is programmed to follow the signal and the disconnect operation Applies only to error correction connections This register can be used to ensure that data in the modem buffer is sent befo...

Страница 55: ...t contributes to a NO CARRIER message Use the S86 command to read the value 0 Normal disconnect no error occurred 4 Loss of carrier 5 V 42 negotiation failed to detect an error correction modem at the...

Страница 56: ...0 bps 20 CONNECT 230400 Connected at 230400 bps 22 CONNECT 75TX 1200RX V 23 connection in originate mode 23 CONNECT 1200TX 75RX V 23 connection in answer mode 24 DELAYED Delay is in effect for the dia...

Страница 57: ...s data carrier detected 159 CARRIER 50000 50000 bps data carrier detected 160 CARRIER 52000 52000 bps data carrier detected 161 CARRIER 54000 54000 bps data carrier detected 162 CARRIER 56000 56000 bp...

Страница 58: ...t 45333 bps V 90 189 CARRIER 45333 45333 bps data carrier detected V 90 190 CONNECT 46667 Connected at 46667 bps V 90 190 CARRIER 46667 46667 bps data carrier detected V 90 191 CONNECT 49333 Connected...

Страница 59: ...5 Solving Problems...

Страница 60: ...rt see Appendix D None of the Indicators Light When you turn on the modem the LED indicators on the front panel should flash briefly as the modem runs a self test If the LEDs remain off the modem is p...

Страница 61: ...ort the mo dem is connected to The serial cable might be plugged into the wrong connector check your computer documentation to make sure Or you might have selected a COM port in your software other th...

Страница 62: ...not Connect There can be several reasons the modem fails to make a connection Possibilities include lack of a physical connection to the telephone line a wrong dial tone a busy signal a wrong number n...

Страница 63: ...se of modem incompatibilities or line noise Try connecting at a lower speed The Modem Disconnects While Online 4 If you have Call Waiting on the same phone line as your modem it can interrupt your con...

Страница 64: ...the transfer can be marginally slower with data compression enabled than with it disabled 4 Does your Internet service provider ISP use the same 56K protocol as your mo dem The default setting of you...

Страница 65: ...th no error correction however line noise can cause garbage characters 4 Try entering the V1 command to display information about the last connection making a screen print of the connection statistics...

Страница 66: ...MultiModemDSVD User Guide 58...

Страница 67: ...Appendixes...

Страница 68: ...he line as determined by the total RENs contact the local telephone company 5 If this equipment causes harm to the telephone network the telephone company will notify you in advance that temporary dis...

Страница 69: ...any mes sage unless such message clearly contains the following information Date and time the message is sent Identification of the business or other entity or other individual sending the message Tel...

Страница 70: ...ons made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protect...

Страница 71: ...ective 98 13 EC of 12 March 1998 on the approximation of the laws of Member States concerning telecommunications terminal and Satellite earth station equipment New Zealand Telecom Warning Notice Use o...

Страница 72: ...MultiModemDSVD User Guide 64...

Страница 73: ...M or MNP 3 4 Data Compression ITU T V 42bis 4 1 throughput MNP 5 2 1 throughput Speed Conversion Serial port data rates adjustable to 300 1200 2400 4800 9600 19 200 38 400 57 600 115 200 and 230 400...

Страница 74: ...nswer 1200 Hz Carrier Frequencies Transmit originate 390 Hz mark ITU T V 23 450 Hz space 1200 bps Receive originate 1300 Hz mark 2100 Hz space Transmit answer 1300 Hz mark 2100 Hz space Receive answer...

Страница 75: ...d Note Any cables connected to the computer should be shielded to reduce interference Diagnostics Power on self test local analog loop local digital loop re mote digital loop Indicators LEDs for Trans...

Страница 76: ...MultiModemDSVD User Guide 68...

Страница 77: ...lows you to verify that the local computer or terminal the two modems and the transmission line between them are functioning properly The remote digital loopback test allows you to verify that the rem...

Страница 78: ...modem is probably causing the problem though it could also be your computer If your modem passes this test but you are receiving errors while on line the remote modem or the phone line could be at fau...

Страница 79: ...tay on line with the remote modem for normal data transmission type AT T and press ENTER to exit the test then type ATO and press ENTER to return on line If you wish to terminate the call type ATH and...

Страница 80: ...onverted to digital data is reconverted into analog and then is transmitted back to the remote modem Your modem passes this test if the data received on the remote monitor is the same as the data ente...

Страница 81: ...nner inconsistent with MTS s instructions MTS s entire obligation under this warranty shall be limited at MTS s option to re pair or replacement of any products that prove to be defective within the w...

Страница 82: ...r 612 785 3702 international and local The BBS can be accessed by any asynchronous modem operating at 1200 bps to 33 600 bps at a setting of 8 bits no parity and 1 stop bit 8 N 1 To Log on to the Mult...

Страница 83: ...e file list and P to go back 4 To mark one or more files for download type M press ENTER type the list numbers of the files and press ENTER again 5 Enter D to see a list of the files you have marked E...

Страница 84: ...ottage NY 10989 Phone 800 826 0279 Fax 914 267 2420 Email info thesupplynet com Internet http www thesupplynet com SupplyNet Online Ordering Instructions 1 Browse to http www thesupplynet com In the B...

Страница 85: ...version of the firmware at the Multi Tech Web site or BBS If your modem already has the current firmware there is no need to update it 3 Download the upgrade file for your modem 4 Extract the upgrade...

Страница 86: ...al and international If you followed the download test in the Quick Start chapter your terminal program should already be configured for the Multi Tech BBS 2 When the BBS welcome screen appears type y...

Страница 87: ...be downloaded 4 If the correct file is listed press ENTER otherwise use the Q command to return to the previous menu 5 Type Z and press ENTER to select the Zmodem transfer protocol 6 The download begi...

Страница 88: ...hat is currently in your modem 1 00 in this example V1 00 V90_2M_DLS 5 Type AT and press ENTER Your modem is now ready to accept a flash file 6 In HyperTerminal select Send Text File from the Transfer...

Страница 89: ...e Modem 81 Step 7 Restore Your Parameters Your modem s firmware update is complete If required you can now use your ter minal program to reprogram your modem parameters using the information you recor...

Страница 90: ...MultiModemDSVD User Guide 82...

Страница 91: ...Index...

Страница 92: ...44 command mode 26 command string 26 communication programs 10 26 53 Communication Standard com mand 27 Communications Mode com mand 33 compression data 3 56 computer connecting to 21 configuration s...

Страница 93: ...56 MNP error correction 3 38 MNP Extended Services com mand 40 Modem Port Flow Control com mand 36 Modem Reset command 10 31 Modulation Handshake com mand 29 Modulation Selection command 38 Monitor Sp...

Страница 94: ...ize command 36 Select Profile command 35 serial cable 53 serial port 53 54 56 Macintosh 20 speed 10 servicing your modem 61 73 Set Register Value command 30 Single Line Connect Message command 38 slee...

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