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Chapter 7 - DIP-Switch Settings

Switch #2
SDLC/BSC Option
(Synchronous Mode/Leased Line/Dial-Up)

Synchronous Data Link Control (

SDLC) and Binary Synchronous Control (BSC) are two error

correction protocols used in the IBM Mainframe environment. Place DIP-Switch #2 in the UP position
to enable SDLC mode, and place DIP-Switch #2 in the DOWN position to enable BSC mode.

SDLC Mode

=

Switch #2 UP

BSC Mode

=

Switch #2 DOWN

Factory Default Setting =

UP

Switch #3
Enable/Suppress Responses -- "Q"
(Asynchronous Mode/Dial-Up)

In some Asynchronous mode applications, you may want to suppress all responses from the modem.
Place DIP-Switch #3 in the DOWN position to enable Result Code responses (

Q0). Place DIP-Switch

#3 in the UP position, and answer mode is handled without responses and echo turned off (

Q2), but

originate is still intelligent.

Enable Responses: Originate/Answer (

Q0)

=

Switch #3 DOWN

Suppress Responses: Answer (

Q2)

=

Switch #3 UP

Factory Default Setting

=

DOWN

Switch #3
dB Transmission Levels
(Asynchronous/Synchronous Mode/Leased Line)

DIP-Switch #3 adjusts dB transmission levels required by some phone carriers. Place DIP-Switch #3
in the DOWN position to enable -9 dB transmission. Place DIP-Switch #3 in the UP position to enable
-15 dB transmission.

-9dB Transmission

=

Switch #3 DOWN

-15dB Transmission

=

Switch #3 UP

Factory Default Setting =

DOWN

Switch #4
AS/400 Mode
(Synchronous Mode/Leased Line/Dial-UP)

The modem can function in the IBM AS/400 environment (appearing like an IBM5853 modem). First,
DIP-Switch #7 must be placed in the UP position. This establishes an RTS/CTS condition (state
typical for an IBM5853 modem in half-duplex mode). Next, place DIP-Switch #4 in the DOWN
position. This

"spoofs" the modem into operating like an IBM5853 modem in AS/400 applications.

DIP-Switch #4 in the UP position disables this function. Note that the modem must be in Command
mode to allow AS/400 mode (DIP-Switch #8 DOWN); and in Synchronous mode (DIP-Switch #12
UP).

AS/400 Mode Enabled =

Switch #4 DOWN

AS/400 Mode Disabled =

Switch #4 UP

Factory Default Setting =

UP

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Summary of Contents for BA-Series

Page 1: ...BA Series Intelligent Data Fax Modem User Guide ...

Page 2: ...visions or changes Record of Revisions A 06 01 99 Manual revised Manual reformatted for electronic distribution All pages remain at Revision A B 08 15 02 Replace Trio with PhoneTools change phone numbers add patents revised safety warnings Trademarks of Multi Tech Systems Inc are as follows MultiModemII Multi Tech and the Multi Tech logo MNP Microcom Network Protocol is a trademark of Microcom Inc...

Page 3: ...2 Other Parameters 19 3 5 Configuring Software for Your Computer 19 3 5 1 Configuring Software for the Remote System 19 3 5 2 Terminal Emulation 20 3 5 3 File Transfer Protocols 20 Chapter 4 Command Mode 21 4 1 Introduction 22 4 1 1 AT Command Editing 22 4 1 2 Functional Modes 22 4 2 Summary of AT Commands 23 4 3 Result Codes 26 4 4 Dialing Commands 27 4 4 1 Dialing Action Commands 27 4 4 2 Dial M...

Page 4: ...ck Security AT Commands 62 6 5 Remote Configuration Callback Security S Registers 63 Chapter 7 DIP Switch Settings 65 7 1 Introduction 66 7 2 DIP Switch Option Settings 66 7 3 Speaker Volume Control 71 7 4 Recording Option Configurations 72 Chapter 8 Warranty Service and Tech Support 74 8 1 Introduction 75 8 2 Multi Tech Systems Inc Warranty Repairs Policies 75 8 3 Online Warranty Registration 76 ...

Page 5: ...Chapter 1 Introduction and Description ...

Page 6: ...trols Chapter 9 covers switch settings more thoroughly Chapter 2 Installation and Connection Chapter 2 covers the procedure for connecting the modem to your computer and to the phone line Details are given supported by illustrations on the modem s back panel connections as a guide to install your modem to the point of operation In addition this chapter describes the installation of PhoneTools the ...

Page 7: ...ting Appendix C AT Command Summary Appendix D V 25bis Operation Appendix E Cabling Diagrams Appendix F Regulatory Information 1 3 Modem Features The MultiModem BA Series modem connections can be made on Public Switched Telephone Networks PSTNs and or point to point 2 wire telephone type circuits Your modem offers interactive automatic dialing as well as Command Mode option configuration You may st...

Page 8: ...ialing ITU V 42 error correction and V 42bis data compression providing 100 error free data transmission V 42 error correction incorporates MNP Classes 3 and 4 and LAP M You may select V 42bis data compression for 4 1 throughput or MNP Class 5 for 2 1 throughput 1 4 Fax Features Your modem meets the ITU V 17 standard for sending and receiving faxes When linked to a compatible fax machine or modem ...

Page 9: ...1 throughput data compression Speed Conversion Serial port data rates adjustable to 300 1200 2400 4800 9600 19 200 38 400 57 600 and 115 200 bps Flow Control Options Xon Xoff Hardware RTS CTS ENQ ACK Unix to Unix Copy Protocol UUCP Spoofing Mode of Operation Full duplex over both dial up lines and 2 wire leased lines automatic or manual dialing automatic or manual answer Intelligent Features Fully...

Page 10: ...Power On Off and DIP Switches for various modem options Speaker Speaker for call progress monitoring Operating Temperature 0 to 50 C 32 to 120 F Power Requirements 115 Volts AC 60Hz 0 3amp 2 prong outlet mounted transformer 240V 50Hz optional International Dimensions 6 150 x 9 00 x 1 375 15 6 cm x 22 9 cm x 3 5 cm Weight 1 6 pounds 0 72 Kg without transformer 2 6 pounds 1 18Kg with transformer Lim...

Page 11: ... back to 26 4K bps while in V 34 mode both the 28 8 and 24 0 LEDs light 24 0 24 000 bps This LED is lit when the modem is connected at 24 000 bps Note if the modem falls back to 21 6K bps while in V 34 mode both the 24 0 and 19 2 LEDs light 19 2 19 200 bps This LED is lit when the modem is connected at 19 200 bps 14 4 14 400 bps 2834 and 1432 models only This LED is lit when the modem is connected...

Page 12: ...knob which is used to adjust the speaker volume This knob is accessible through the modem s rear panel The sixteen DIP Switches control various modem options or set default values for Command Mode operation There is a difference in how several of the switches operate depending on whether you are in synchronous or asynchronous mode Refer to the switch label on the bottom of the modem for an exact l...

Page 13: ...Chapter 2 Installation and Connection ...

Page 14: ... Unpacking Your package should include MT2834BA data fax modem RJ 11 telephone cord AC Power Transformer One 1 Quick Start Guide One 1 software CD PhoneToolsTM data communications and fax software This User Guide on diskette If any of these items are missing contact Tech Support 2 2 Installation The installation of the modem consists of making the physical connections necessary to render the modem...

Page 15: ...m lightning 8 Do not use a telephone in the vicinity of a gas leak 2 2 2 Installation Procedure The following procedures will guide you through the physical connections required to make your modem operational Software loading is covered later in this guide Step Procedure 1 Verify that the settings for DIP Switch 5 and DIP Switch 10 match those of your system configuration The 16 position DIP Switc...

Page 16: ...d with your unit to the POWER connector on the modem and to a live AC outlet Refer to Figure 2 2 Note Only apply power to the modem using the power transformer provided with your unit Use of a power supply not designed for your unit could result in damage to your modem and will void the warranty 7 Apply power to the unit by setting the ON OFF switch at the rear of the modem to the ON Up position R...

Page 17: ...Chapter 3 Software Configuration and Modem Basics ...

Page 18: ...ith the modem reset command F Issuing a reset command before other commands ensures that you are starting with a known state The rest of the commands in the initialization string depend on the capabilities of the modem and what you want it to do Some older communications programs require you to create the initialization string by yourself Most modern communications programs however provide you wit...

Page 19: ... string ATH0 M and response messages RING NO CARRIER BUSY etc Communications software with a host mode might also include an auto answer string AT S0 1 M 3 5 Configuring Software for Your Computer You must configure your communications software to match your computer s configuration If the modem is connected to the COM2 serial port you must tell the software you are using COM2 Another important pa...

Page 20: ...ograms can emulate the most common mainframe terminals including the DEC VT100 VT102 and VT52 terminals and the basic TTY mode If in doubt about which to choose for a BBS try ANSI or VT100 first 3 5 3 File Transfer Protocols When you upload or download files with your modem the host computer will ask which file transfer protocol you want to use Most communications programs allow you to choose a de...

Page 21: ...Chapter 4 Command Mode ...

Page 22: ...hen entering a command but are not stored in the Command Buffer and are not counted in the sixty allowed characters Hyphens parentheses etc are not allowed If the sixty character limit is exceeded or if invalid characters are entered the Command Buffer automatically erases and an ERROR message appears You would then re enter your command within the sixty character maximum using only the allowed ch...

Page 23: ...e commands are organized into several functional groups An alphabetical summary of commands is provided in Appendix D HOW TO COMMANDS DIAL D Dial A or Continuous Redial D DTR Dialing VD Voice Data Dialing N Dial a Stored Number MODIFY DIALING P T Pulse Tone Dialing PROCEDURES P Set Pulse Dial Ratios Automatic Pauses in dialing Y Long Space Disconnect W Wait for New Dial Tone Return to Command Mode...

Page 24: ...ect Control INTERFACE D Data Terminal Ready Control R Clear To Send Control S Data Set Ready Control RF CTS RTS Control SF DSR CD Control CONFIGURE E0 Normal Mode ERROR E1 Auto Reliable Mode CORRECTION E2 Reliable Mode L0 Negotiate V 42 Mode During Handshake L1 MNP On LAPM Off L2 LAPM On MNP Off L3 Direct LAPM Phase Out Handshake A Auto Reliable Buffering F Enable Disable Auto Reliable Fallback Ch...

Page 25: ...ntering Command Mode while On Line A Force Answer Mode O Exit Command Mode Go Back On Line EXECUTE DF Format Line Probe Display Graph or Table Format LINE DP Enable Disable Reading Line Probe From DSP during handshake PROBE L9 Display of Signal Strength Information COMMANDS L10 Display Signal to Noise Ratio SNR 2834 Series only L11 Display of Noise Information RP Initiates Retrain to Read Line Pro...

Page 26: ...s generated by the Q command refer to Appendix G for Result Code Summary Multi Tech Result Codes TERSE VERBOSE TERSE VERBOSE 0 OK 11 CONNECT 4800 1 CONNECT 12 CONNECT 9600 2 RING 13 CONNECT 14400 3 NO CARRIER 19 CONNECT 19200 4 ERROR 21 CONNECT 21600 5 CONNECT 1200 24 CONNECT 24000 6 NO DIALTONE 26 CONNECT 26400 7 BUSY 28 CONNECT 28800 8 NO ANSWER 31 CONNECT 31200 9 CONNECT 2400 33 CONNECT 33600 W...

Page 27: ...e a number stored in the modem s memory is automatically dialed See description of D command in this section for details Continuous Redial not used in BAI A or If you select the Wait For Dial Tone method of dialing see X3 or X4 command you can command the modem to continuously redial up to 10 re dials for DOC units a busy number until your call is answered This is done with the A command This comm...

Page 28: ...l Modifiers They have various functions including the selection of Pulse or Tone Dialing pauses in the dial sequence automatic re dials if a number is busy and reverting to the Command mode or switching to the Answer mode after dialing Pulse or Tone Dial P T The modem dials numbers using either pulse or tone dialing or a combination of both methods Pulse dialing is a method used by rotary dial tel...

Page 29: ...ve Y0 factory default disables this function Wait for New Dial Tone W A W inserted in the dialing command causes the modem to wait for another dial tone and not resume dialing until another dial tone is detected It is not necessary to enter a W at the beginning of the dialing command to wait for a modem dial tone because the modem will do that first pause automatically In order for this command to...

Page 30: ...ssing a system that does not provide a dial tone For example ATDT5551212 6313550 causes the modem to dial the first number 555 1212 and wait for the time specified in S7 for at least one ringback and 5 seconds of silence If a busy signal is detected the modem hangs up and generates a BUSY result code If it does not detect 5 seconds of silence a NO ANSWER result code is generated after hanging up I...

Page 31: ...hown The number s name 0 thru 9 is shown first followed by the complete dialing command and telephone number as originally entered Simply enter ATL and hit RETURN to display these numbers on your video screen or printer An example of an L command listing is shown below 0 DT14082345678 1 DT16125551212 2 DP9 T14089876543 3 DT3738315 12101 16126313550 4 DT6313551R 5 6 DP9 4258513 7 8 DTX4 E1 E5 E13 E...

Page 32: ...er and the result is the same as if you had disconnected and then reconnected power to the modem When an ATZ command is executed the state of the W command determines where the default values originate W0 defaults come from RAM and W1 defaults come from ROM Unix UUCP Spoofing SP The modem can be configured in a Unix environment that employs ACK flow control as a means of monitoring data integrity ...

Page 33: ...ications such as computer controlled auto dialing using the Q command ATQ1 disables Result Code transmissions ATQ0 or ATQ enables Result Code transmission Regarding No Response Answer you may want the answer mode handled without responses and echo turned off but want the originate mode still intelligent This is called the No Response Answer mode ATQ2 selects the No Response Answer mode If you do n...

Page 34: ...n a call rather than wait 45 seconds for a carrier signal that will never come S Register S7 defines the wait for carrier time refer to Chapter 6 The modem gives you a choice between the wait for dial tone smart method we just described and blind dumb dialing where instead of detecting actual dial tones the modem relies on timed pauses When the wait for dial tone method is chosen the busy signal d...

Page 35: ...h The T command is a phone line conditioning command that enables or disables the modem s ability to recognize the Remote Digital Loop RDL test signal The AT T4 command lets the modem respond to a RDL signal and places itself in digital loop The AT T5 command causes the modem to ignore the RDL signal The factory default is T5 Enable Disable Trelis Coded Modulation T This command enables or disable...

Page 36: ...0 bps with fallback to 28 800 to 19 200 to 14 400 to 9600 to 4800 to 2400 to 1200 and to 300 bps Entering AT A1 causes 33 600 bps operation only Entering AT A2 causes the modem to operate at starting speeds of 33 600 bps with incremental fallback to 28 800 19 200 14 400 9600 and 4800 bps The AT A3 command causes the modem to begin operation as a V 22bis modem at 2400 bps with fallback to 1200 to 3...

Page 37: ...d mainframe front ends which require CTS to act in this manner To allow CTS to act normally enter the command AT R0 To force CTS on enter the command AT R1 this is the factory default setting When the modem goes on line CTS still provides flow control To set up CTS so that it drops for one second on disconnect and then comes up again enter the command AT R2 If you want the drop time to be somethin...

Page 38: ...iable mode and originates a call it goes through normal handshaking procedures just like any dial up modem After establishing the on line connection the modem transmits a Link Request message to the answering modem The Link Request message is generally about 33 coded characters If the answering modem replies with an appropriate V 42 acknowledgment response the modem switches into Reliable mode Oth...

Page 39: ...Auto Reliable mode the modem is given four seconds to establish a Reliable connection After this four second period the modem drops to Normal mode Any data which is received during this period is typically discarded The A command can be used to cause the modem to buffer save data that is received during this Auto Reliable time out period This data will then be output by the modem after the CONNECT...

Page 40: ...4 9 Flow Control Commands Flow control refers to the techniques used by computer devices to stop and restart the flow of data to and from each other Flow control is necessary so that a device does not receive more data than it can handle In the case of the MultiModem there is a need for flow control in both directions As illustrated on the next page flow control for data passing from your computer...

Page 41: ...e choices to make regarding pacing 1 You can set the modem to respond to Xon Xoff pacing 2 You can set the modem to respond to RTS pacing 3 You can set the modem to ignore pacing completely Well we re not done with pacing yet There s another choice you can make which actually can apply to both pacing and modem initiated flow control although it applies mainly to pacing and that is something called...

Page 42: ...l are ignored When you are using Speed Conversion in Normal Mode you must activate the modem s Normal Mode Modem Flow Control Terminal Computer Initiated Pacing E13 As mentioned earlier the modem can initiate flow control by issuing Xon Xoff commands or toggling the CTS signal on the RS 232C interface The modem can also be configured to react to similar commands and signals from the computer or te...

Page 43: ...ode Modem Initiated Flow Control Commands E3 Disables flow control no flow control E4 Hardware flow control CTS on off and RTS on off E5 Xon Xoff flow control Xon Xoff Pass Through Commands E6 Modem responds to Xon Xoff characters but does not allow Xon Xoff characters to pass through to remote site E7 Modem responds to Xon Xoff characters and allows them to pass through to remote site X0 Selects ...

Page 44: ...ed Conversion ON enter the command AT BA0 and hit RETURN To turn Speed Conversion OFF enter AT BA1 and hit RETURN The modem will now match its RS 232C speed to that of the computer and will adjust its speed to any changes in the computer s speed in Originate mode or to the speed of the originating modem in Answer mode The speed at which the modem communicates over the phone line will always be the...

Page 45: ...B command remains the same This provides you with a convenient way to switch the serial port speed and still make it easy to go back to the original speed automatically the next time the modem is powered up or reset with an ATZ command The command to set the Serial Port Baud Rate is AT SBn where n can be AT SB300 300 bps AT SB1200 1200 bps AT SB2400 2400 bps AT SB4800 4800 bps AT SB9600 9600 bps A...

Page 46: ...entered the symbols BA 28800 FAX CT are displayed which indicates to the Windows 95 system that your particular modem is a MT2834BA 28 800 bps fax Class 2 capable modem With autodetect support in your MT2834BA your PC can automatically allocate resources and configure it and other devices The MT2834BA implements autodetect capability in the form of a single INF Information file that specifies AT C...

Page 47: ...ead of the three plus signs The BREAK is followed by the letters A and T up to 60 command characters and RETURN When this is done the modem executes that command but remains in On Line mode unless the command was to hang up and or reset the modem an H or Z in which case the modem would be in the Command Mode after executing that command Escape Sequence Options Entering Command Mode While On Line E...

Page 48: ...nsmitters begin with the lowest speed and move up until reaching the highest speed at which they can exchange data All this occurs in about five seconds There are a number of Line Probe Commands These commands are configurable and can be stored to RAM via AT W0 These commands are listed below Enable Disable Reading of Line Probe Information Commands DP0 Do not read Line Probe information from DSP ...

Page 49: ...Chapter 5 S Registers ...

Page 50: ...r of rings that can be configured is 255 Setting the value to zero 0 disables auto answer completely S1 Rings Which Have Occurred Unit 1 ring Range 0 255 Default 0 Description S1 counts the number of rings that have occurred It is a read type of register and is seldom if ever used in typical operation Each time an incoming ring signal is detected S1 increases its value by one up to a maximum of 25...

Page 51: ... Default 45 Description S7 defines the Abort Timer lack of carrier delay time The default value is 45 seconds Decimal 45 This means that after dialing the modem waits for a carrier signal for up to 45 seconds and if none is detected aborts the call The maximum S7 value is 255 S8 Pause Time for Comma Unit 1 second Range 0 255 4 255 Default 2 4 Description S8 sets the length of the pause caused by a...

Page 52: ...d less S11 Tone Dialing Tone Spacing and Duration Unit 1 mSec Range 1 255 80 255 Default 70 80 Description S11 sets the speed of tone dialing spacing and tone duration times The default value is 70 units Decimal 7 or 80 units where each unit is one mSec meaning that each tone is on for 70 mSec with a 70 mSec pause between each The minimum S11 value allowed by most telephone systems is 50 mSec 50 u...

Page 53: ...ange 0 255 Default 20 Description Some PBX and CBX phone systems require the modem s DSR CTS and or CD signal s to behave in a certain manner when calls are disconnected The modem s R S and C commands cause the modem to drop these signal s for a specified time period upon disconnect and then bring the signal s up again S24 defines the length of time that the signals drop The default setting of 20 ...

Page 54: ...t 1 min Range 0 255 Default 0 Description S30 causes the modem to disconnect if no data is transmitted or received for a specified time This timer runs during both Reliable and Normal error correction connections The timer restarts any time a data character is passed through the serial port either sent or received If noise on the phone line causes an error to be received during Normal mode this al...

Page 55: ... speed is 26 4K This register compensates for line conditions that have trouble supporting higher Enhanced V 34 speeds e g 33 6K 31 2K 28 8K 26 4K 24K The modem default is a value of 0 which indicates a connection attempt of 33 6K 5 2 Reading and Assigning S Register Values The S command is used to assign a value to and to read the current value of an S Register To read an S Register value enter t...

Page 56: ...ion read entry in the same command line as the configuration assignment entry In the three preceding examples enter ATS8 5S8 ATS0 30S3 and ATS7 55S7 5 3 AT Command and S Register Summary The vast majority of installations are similar with the modem being used to dial up a remote installation where the call is automatically answered Your modem has a default configuration to dial another modem that ...

Page 57: ...Chapter 6 Callback Security and Remote Configuration ...

Page 58: ...one number memory 30 numbers long You use the modem s LOGIN Password and the Set Up Password plus special Callback commands to access this memory The memory is thirty numbers long and replaces your modem s normal phone number memory Each number is 35 characters long and can contain commands as well as phone numbers You need to set up your modem with the numbers and codes as part of the dial back i...

Page 59: ...onfiguration on and wish to change the Remote Escape Character change the S Register S13 value If you leave it at the default value decimal 37 sign will be your modem s remote escape character To turn your modem s Callback Security feature on and off 7 If you want Callback Security with both remote and local password security enter AT DB1 and hit RETURN You must turn on Callback Security to be abl...

Page 60: ... etc Note You must indicate within the command string that the modem either Pulse dial ATDP or Tone dial ATDT The maximum length of the number is 35 characters The number may include commands as well as your number so as to create macro type command numbers The and or characters entered before the phone number are optional The Deposit Number code allows a caller to enter the number he or she wishe...

Page 61: ...er a phone number which you wish the Callback modem to dial after hanging up The and characters must be entered after the Dial back password i e DB xxxxxx This is also the point where you enter an extension number if your Callback number used the feature Step 5 in Table 6 2 You have three tries at each prompt to enter the information properly with an incorrect entry resulting in a password retry Y...

Page 62: ...ck password xxxxxxxx must start with a non numeric character Callback Security Enable Disable DB The purpose of this command is to enable or disable default setting your modem s callback security option Once this command is executed you modem will undergo some significant changes For example the phone number memory locations N0 through N9 will be used for passwords and phone numbers In other words...

Page 63: ...The following S Registers are used with Remote Configuration and Callback Security features Remote Configuration Character S13 S13 defines the modem s remote configuration escape character When the S13 character is entered three consecutive times from a remotely connected site your modem responds to it with its Remote Configuration procedure Units ASCII Range 0 127 Default 37 sign Callback Time De...

Page 64: ...has been entered If this timer expires the LOGIN and SETUP passwords will have to be re entered S29 only takes effect when the modem has been sent a DB1 command which secures the modem from local and remote configuration or dialing i e no AT commands can be sent until the LOGIN and SETUP passwords have been entered Units Minutes Range 1 255 Default 20 ...

Page 65: ...Chapter 7 DIP Switch Settings ...

Page 66: ...ached through pin 20 of the RS 232C V 24 interface If your terminal or computer is not providing DTR to the modem you can force the DTR signal high with DIP Switch 1 DTR function normally Switch 1 UP DTR forced On Switch 1 DOWN Factory Default Setting UP Switch 2 Flow Control E4 E5 Asynchronous Mode Leased Line Dial Up With Hardware Flow Control the modem uses its RS 232C V 24 interface to control...

Page 67: ...P Factory Default Setting DOWN Switch 3 dB Transmission Levels Asynchronous Synchronous Mode Leased Line DIP Switch 3 adjusts dB transmission levels required by some phone carriers Place DIP Switch 3 in the DOWN position to enable 9 dB transmission Place DIP Switch 3 in the UP position to enable 15 dB transmission 9dB Transmission Switch 3 DOWN 15dB Transmission Switch 3 UP Factory Default Setting...

Page 68: ...in the UP position to enable Auto Answer Place DIP Switch 5 in the DOWN position to disable Auto Answer Auto Answer Enabled Switch 5 UP Auto Answer Disabled Switch 5 DOWN Factory Default Setting UP Switch 5 Originate Answer Mode Asynchronous Synchronous Mode Leased Line The modem functions in either Originate mode or Answer mode Place DIP Switch 5 in the DOWN position to enable Originate mode Plac...

Page 69: ...ault Setting DOWN Switch 8 Enable Disable Command Mode Com Asynchronous Synchronous Mode Leased Dial Up In some applications you may want to disable the modem s Command mode so that the modem does not recognize or react to AT or V 25bis commands This may be true in strictly auto answer applications where no call origination is required Place DIP Switch 8 in the DOWN position to enable Command mode...

Page 70: ...actory Default Setting DOWN Switch 11 Internal External Clocking Synchronous Mode Leased Line Dial Up In Synchronous mode the transmit clock can be supplied by the DTE on pin 24 of the RS 232C V 24 interface by placing DIP Switch 11 UP Place DIP Switch 11 in the DOWN position to enable DCE to control clocking internal clock via pins 15 and 17 of the RS 232 V 24 interface External Clock pin 24 Swit...

Page 71: ...terminals react in unusual ways to the toggling of the Carrier Detect CD RS 232C V 24 pin 6 signals The most common symptom is that the modem does not respond to commands or does not echo characters In these cases it is advisable to force these two signals On in order for the terminal to communicate properly with the modem in Command mode This is done by setting DIP Switch 15 DOWN With DIP Switch ...

Page 72: ...Sync Dial Up Leased line DOWN AS 400 Mode On 5 Auto Answer Enable Disable UP Automatic Answer On Async Sync Dial Up DOWN Automatic Answer Off 5 Answer Originate DOWN Answer Mode On Async Sync Leased Line UP Originate Mode On 6 Max Thru Enable Disable UP Max Throughput On Async Dial Up Leased DOWN Max Throughput Off 6 Slave Clock Enable Disable UP Slave Clocking Off Sync Dial Up Leased DOWN Slave C...

Page 73: ... DIP switches 13 and 14 SWITCH CONDITION EFFECT 13 14 UP UP 28 8 K bps Operation 13 14 DOWN UP 19 2 K bps Operation 13 14 UP DOWN 14 4 K bps Operation 13 14 DOWN DOWN 9600 bps Operation DIP Switches 15 16 SWITCH CONDITION EFFECT 15 UP CD DSR from Interface 15 DOWN CD DSR Forced On 16 UP Not Used 16 DOWN Not Used Standard Factory Default Setting ...

Page 74: ...Chapter 8 Warranty Service and Tech Support ...

Page 75: ... which they were manufactured repaired by Customer or any party without MTS s written authorization or used in any manner inconsistent with MTS s instructions MTS s entire obligation under this warranty shall be limited at MTS s option to repair or replacement of any products which prove to be defective within the warranty period or at MTS s option issuance of a refund of the purchase price Defect...

Page 76: ...RMA is required for products shipped from outside the U S A and Canada Please contact us for return authorization and shipping instructions on any International shipments to the U S A Please include inside the shipping box a description of the problem a return shipping address must have street address not P O Box your telephone num ber and if the product is out of warranty a check drawn on a U S b...

Page 77: ...tion of this unit please call 800 972 2439 USA and Canada or 763 785 3500 international and local Please have modem information available You can also contact Technical Support by e mail at the following addresses Country Email Telephone France support multitech fr 33 1 64 61 09 81 India support multitechindia com 91 124 6340778 U K support multitech co uk 44 118 959 7774 U S A Canada tsupport mul...

Page 78: ...Appendixes ...

Page 79: ...r your stored parameters 6 Upgrade the modem s firmware using the HEX file and the Flash Wizard 7 Restore your parameters Step 1 Identify the Modem Firmware You must know the model number and firmware version of your Multi Tech modem to know whether or not you should update it 1 Run your favorite terminal program If you are using Windows 95 or above you can use Windows HyperTerminal 2 In the progr...

Page 80: ...der Step 4 Extract the Upgrade Files 1 Install the Flash Wizard utility by double clicking the file name in Windows Explorer 2 Extract the upgrade files by double clicking the file name The extracted files include a HEX file which contains the upgrade data and a Readme file 3 Copy the upgrade HEX file into the Flash Wizard folder which in a default installation is at C Program Files MultiTech Syst...

Page 81: ... are correctly and securely attached 2 Click the modem to be upgraded and then click Next to proceed 3 Select the port to be upgraded from the Port list select the appropriate HEX file from the Hex File list and then click Next to continue Note Do not use FLASHLDR HEX This file is used internally by Flash Wizard 4 The Progress dialog box appears showing a status bar that indicates the progress of ...

Page 82: ...a power strip make sure the power strip is plugged in and its power switch is on Make sure the power supply module is firmly connected to the modem and to the wall outlet or power strip If the power strip is on and the modem switch is on try moving the modem power supply to another outlet on the power strip Test that the outlet is live by plugging a lamp into it The modem or power supply may be de...

Page 83: ...our communications port Be sure to disable any unused ports To look for address or IRQ conflicts if you use Windows 3 1x select File Run in Program Manager type MSD and press ENTER Then select Mouse COM Ports and IRQ Status and note the addresses and IRQs that are in use If you find an IRQ conflict note which IRQs are not being used then change one of the conflicting devices to use one of the unus...

Page 84: ... replace X4 with X3 which will cause the modem to ignore dial tones If the modem reports BUSY the other number may be busy in which case you should try again later or it may indicate that you have failed to add a 9 prefix to the phone number if you must dial 9 for an outside line If you must dial 9 to get an outside line the easiest way to dial it automatically is to include it in the modem s dial...

Page 85: ...ould Be You may have an older UART For best throughput install a 16550AFN UART or a Multi Tech ISI serial port card See the Quick Start chapter for information on how to identify your UART If you are running under Windows 3 1 and have a 16550AFN UART you must replace the Windows serial driver COMM DRV to take full advantage of the UART s speed If you are using a slow transfer protocol such as Xmod...

Page 86: ...n With no error correction however line noise can cause garbage characters Try entering the L8 List Online Diagnostics command in on line mode making a screen print of the diagnostics listing and checking for parameters that may be unacceptable number of retrains round trip delay etc My Fax and Communications Software Won t Run at the Same Time Communications devices can be accessed by only one ap...

Page 87: ... 12 000 to 9600 to 4800 to 2400 to 1200 to 300 bps A1 selects initial handshake at 33 600 bps only A2 selects initial handshake at 33 600 to 31 200 to 28 800 to 24000 to 21600 to 19 200 to 16 800 19 200 to 14 400 to 9600 to 4800 bps A3 selects initial handshake at 2400 to 1200 to 300 bps Factory Default Setting Bn n 0 or 1 B0 selects V 21 answer tone B1 selects Bell answer tone Bn n 0 or 1 B0 mean...

Page 88: ... thru 15 E0 means no error correction E1 means V 42 Auto reliable Mode E2 means V 42 Reliable Mode E3 means no modem initiated flow control E4 means CTS modem initiated flow control E5 means Xon Xoff modem initiated flow control E6 means Xon Xoff not passed through E7 means Xon Xoff passed through E8 means Enq Ack pacing off E9 means Enq Ack pacing on E10 means Normal Mode flow control off E11 mea...

Page 89: ...requests modem ID I1 requests firmware revision I2 for MTS internal use I9 Read Only Command enables display of Windows 95 Autodetect characteristics L Lists all stored telephone numbers in memory L5 L5 lists all current operating parameters L6 L6 lists all current S Register values L7 L7 lists additional parameters L8 L8 lists On Line Diagnostics L9 L9 Displays Signal Strength Information L10 L10...

Page 90: ...l pulse dial numbers following the P Pn n 0 or 1 P0 means 60 40 pulse ratio P1 means 67 33 pulse ratio Qn n 0 1 or 2 Q0 means Result Codes sent Q1 means Result Codes will be suppressed quiet Q2 means Dumb Answer Mode Qn n 0 or 1 Q0 selects Multi Tech command set Q1 selects AT command set Rn n 0 or 1 R0 means modem will not reverse modes R1 means modem will reverse modes Rn n 0 1 or 2 R0 lets Clear...

Page 91: ...ers following the T Tn n 4 or 5 T4 means Enable Response to Request for Remote Digital Loopback T5 means Disable Response to Request for Remote Digital Loopback Tn n 0 or 1 T0 turns off Trellis Coded Modulation T1 turns on Trellis Coded Modulation Un n 0 1 2 or 3 U0 places modem in Analog Loop Originate Mode U1 places modem in Analog Loop Answer Mode U2 places modem in Remote Digital Loopback test...

Page 92: ...or responding to long space breaks Z All configuration parameters are reset to default values In Dial Command Causes pause during dialing In Dial Command Causes return to Command Mode after dialing In Dial Command Causes modem to flash On Hook In Dial Command Causes modem to wait for ringback then 5 seconds of silence before processing next part of command AT CR In band Escape Sequence Places mode...

Page 93: ...ations are from 0 to 29 Must specify P pulse or T tone dialing in string Dxxxxxx Nxx Callback Phone Numbers xxxxxx with the preceding the phone number indicating the callback modem phone number for the corresponding password at the same memory location The preceding the phone number enables direct entry when the caller uses the correct password without the callback modem having to return the call ...

Page 94: ...rd is any keyboard characters x upper lower case sensitive minimum 6 and maximum 10 characters The default Login Password is IMULTI TECH Syyyyyyyyyy Setup Password is any keyboard characters y upper lower case sensitive minimum 6 and maximum 10 characters The default Setup Password is SMODEMSETUP ...

Page 95: ... bps CSP1200 1200 bps CSP2400 2400 bps CSP4800 4800 bps CSP9600 9600 bps CSP19200 19200 bps CSP38400 38400 bps CSP57600 57600 bps 2834 CSP115200 115200 bps CRNdd Dials phone number dd where dd can be up to 20 characters 0 through 9 P T and Phone number is checked against the Delayed and Forbidden Number lists before dialed CRIdd nn Dials dd same as CRN Command and ignores nn identification string ...

Page 96: ...owed and a CFIFF indication is given The modem in AT command mode will respond with NO CARRIER If country regulations require that the Forbidden Numbers list be checked in AT mode then NO CARRIER will be the response to a dial attempt in AT mode Numbers will also be put on the Forbidden Numbers list if the Delayed Numbers list is full and a new number fails for the first time In that case the new ...

Page 97: ... standard Setup involves proper DIP Switch settings and soft switches software controlled conditions V 25bis DIP Switches 1 Unforced DTR 2 NA 3 NA 4 NA 5 Auto Answer enabled 6 Async Max throughput set Sync Slave Clocking unforced 8 Command Mode forced 9 Digital Loopback Off 10 Dial Up 11 Async AT Multi Tech Resp 12 Async Sync mode set per requirements V 25bis Mode AT Commands The following command...

Page 98: ...e V command is to select the V 25bis mode in asynchronous mode Synchronous mode is set up with switches For example the modem could be in AT command mode AT V1 and if synchronous mode is enabled with AT Command mode enabled then V 25bis mode is selected Prior to executing this command make sure that your modem is properly set up to perform the type of operation you will be performing Refer to the ...

Page 99: ... When filled the next number failing bumps off the oldest number on the list onto the Forbidden Number list Numbers on the Delayed Number list that succeed in a connect attempt are removed If a certain number of failed attempts occur the number of failed attempts is specified by each country the number is entered into the V 25bis Forbidden Phone Number List Forbidden phone numbers cannot be dialed...

Page 100: ...se of this document is to detail each country s specific regulations that affect operation of V 25bis in Multi Tech modems 1 Italy a Command Indication modifications 1 Phone number indications include status ZPSTTT a Z U D or F for Unrestricted Delayed or Forbidden b P Delay time if delayed c S Number of retries so far d TTT Interdiction time to further attempts b Delayed and Forbidden list behavi...

Page 101: ... Forbidden Numbers lists are checked when dialing in AT command mode If dialing is not possible then No Carrier is the response c Auto Answer mode behavior 1 Auto Answer in 5 seconds if no DIC 5 Belgium a Command Indication modification none b Delay and Forbidden list behavior 1 1 min delay between calls 2 After 4 retries the number is put on the forbidden list 3 The number remains on the forbidde...

Page 102: ...rial port 25 PIN DTE Connector 25 PIN DCE Device 2 TD 3 RD 4 RTS 5 CTS 6 DSR 7 GND 8 CD 20 DTR 22 RI TD 2 RD 3 RTS 4 CTS 5 DSR 6 GND 7 CD 8 DTR20 RI 22 Figure E 1 RS232 Cable IBM PC RJ 11 Type Modular Plug To Terminal Block Screws Transmit and Receive GREEN Ring RED Tip 1 2 3 4 5 6 Figure E 2 Two Wire Leased Line Connection ...

Page 103: ... B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil numérique de la classe B respecte toutes les exigences du Reglement Canadien sur le matériel brouilleur FCC Part 68 Telecom 1 This equipment complies with part 68 of the Federal Communications Commission Rules On the outside surface of this equipment is a label that contains among ot...

Page 104: ...m number of terminals allowed to be connected to a telephone interface The termination on an interface may consist of any combination of devices subject only to the requirement that the sum of the ringer equivalence numbers of all the devices does not exceed 5 Notice The Industry Canada label identifies certificated equipment This certification means that the equipment meets certain telecommunicat...

Page 105: ...ty and R TTE Directive Compliance The CE mark is affixed to this product to confirm compliance with the following European Community Directives Council Directive 89 336 EEC of 3 May 1989 on the approximation of the laws of Member States relating to electromagnetic compatibility and Council Directive 73 23 EEC of 19 February 1973 on the harmonization of the laws of Member States relating to electri...

Page 106: ...rdown at Disconnect 36 COM ports COM2 19 COMM DRV 85 Command Buffer 9 Command mode 22 Command string 18 Command Summary 87 Commands Attention code 18 Load default configuration 19 Modem reset 18 Compatibility 9 Computer or Terminal Initiated Flow Control Pacin 43 Connectors 10 Continuous Redial A or 27 Controls 10 CTS Control R 37 CTS RTS Interaction Control RF 37 D Data Compression 9 Data Compres...

Page 107: ...estrictions 105 Internet addresses 77 L Leased Line Dial Up Operation 70 Limited Warranty 10 Line Feed Character 51 Link Request 38 Listing Current Operating Parameters L5 L7 46 Listing Delayed Phone Numbers RLD Command99 Listing Forbidden Phone Number RLF Command99 Listing Numbers Stored in Memory L 31 Listing On Line Diagnostics L8 46 Listing S Register Values L6 46 Loading Factory Defaults F 31...

Page 108: ... Pulse Dial Ratios P 29 Signal Strength information 48 Signal to Noise Ratio information SNR 48 Slave Clocking 69 Slow File Transfer 85 smart dialing 34 Speaker 10 Speed Conversion BA 44 Speed Switches 71 Storing Phone Numbers D N 30 Summary 56 Synchronous Transmit Clock Select X 32 T Telephone line 84 Terminal mode 82 Terminal Computer Initiated Pacing E13 42 Testing 82 84 self test 82 Time Elaps...

Page 109: ...109 Index Y Ymodem G 85 Z Zmodem 85 ...

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