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Chapter 4 - AT Commands, S-Registers and Result Codes

Result Codes

In command mode the MT1932ZDX can send responses, or result codes,
to your computer. Result codes are used by communications programs
and can also appear on your monitor.

AT&Q0 selects Multi-Tech result codes with

RELIABLE, LAPM,

and

COMPRESSED

modifiers (default).

AT&Q1 selects standard AT result codes without modifiers.

&Q0 Multi-Tech Result Codes

&Q1 Standard AT Result Codes

Terse

Verbose

Terse

Verbose

CONNECT

RING

NO CARRIER

ERROR

CONNECT 1200

NO DIALTONE

NO DIAL TONE

BUSY

NO ANSWER

CONNECT 2400

CONNECT 4800

CONNECT 9600

CONNECT 14400

CONNECT 19200

CONNECT 21600

CONNECT 24000

CONNECT 26400

CONNECT 28800

CONNECT 31200

CONNECT 33600

* With error correction on, RELIABLE (or R) or LAPM (or L) is added to these result

codes. With data compression on,

COMPRESSED (or C) is added.

Содержание MT1932ZDX

Страница 1: ...Quick Reference Guide...

Страница 2: ...f such revisions or changes Record of Revisions Revision Description I Manual revised to reflect editorial changes All pages at 12 15 97 Revision I Trademarks Trademarks of Multi Tech Systems Inc are...

Страница 3: ...1 POWER Connection 11 Power On Test 12 Step 3 Install the Modem in Windows 95 13 Adding the MT1932ZDX to Windows 95 13 Removing Your Old Modem from Windows 95 14 Step 4 Install and Configure Your Soft...

Страница 4: ...n the Modem Is On 53 The Modem Does Not Respond to Commands 53 The Modem Dials But Cannot Make a Connection 56 The Modem Disconnects While Online 57 The Modem Cannot Connect When Answering 58 File Tra...

Страница 5: ...nty Registration 77 Service 77 Tech Support 77 The Multi Tech BBS 78 Logging on to the Multi Tech BBS 78 Downloading a File 78 Reading a Message 80 Leaving a Message 80 Bulletins 80 About CompuServe 8...

Страница 6: ...I international versions of the modem Except where specifically noted references to the MT1932ZDX should be understood to apply to all versions whereas references to the ZDX ZDX Mac ZDXK and ZDXI refe...

Страница 7: ...ne DC power supply One set of four plastic feet Two sets of Velcro fasteners One telephone cable This Quick Reference Guide Communications datcomm software A brochure with a warranty registration card...

Страница 8: ...DC power supply module One set of four plastic feet Two sets of Velcro fasteners One 14 foot telephone cable Communications datacomm software This Quick Reference Guide A brochure with a warranty regi...

Страница 9: ...be a remote risk of electrical shock from lightning Do not use a telephone in the vicinity of a gas leak Step 1 Assemble the Modem The only assembly required is to mount the feet on the bottom of the...

Страница 10: ...dem to Your System Placing the MT1932ZDX in a convenient location connect it to your computer s serial port to the telephone line to AC power and optionally to your telephone the ZDXK and ZDXI models...

Страница 11: ...ustry Canada and the British Approvals Board for Telecommunications BABT impose certain restrictions on equipment connected to public telephone systems See Appendix A for more information u PHONE Conn...

Страница 12: ...the modem performs a diagnostic self test indicated by the speed indicators flashing in sequence for a second or two after which the 28 indicator should light If this does not happen check that the po...

Страница 13: ...te If Windows cannot find a modem your modem may be turned off it may be plugged into the wrong connector on your computer or the serial cable may be faulty See None of the LEDs Light When the Modem I...

Страница 14: ...can change the application connection descriptions one at a time it is easier to force Windows 95 applications to use the MT1932ZDX by removing the old modem from Windows 1 Click the Start button poi...

Страница 15: ...indows select Window Setup Advanced 3 Choose the Multi Tech MultiModemZDX or MT1932ZDX from the software s modem list If the MultiModemZDX isn t listed choose another Multi Tech modem such as the Mult...

Страница 16: ...T type If you have Windows 95 select Start Settings Control Panel and double click on the Modems icon In the Modems Properties dialog box click the Diagnostics tab click the port the modem is connecte...

Страница 17: ...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 dial 9 to access an outside li...

Страница 18: ...press RETURN twice more 17 In the HyperTerminal window click File Save to save the HyperTerminal Connection description Windows Terminal 1 OpentheAccessoriesprogramgroupanddouble clickontheTerminal i...

Страница 19: ...ns For help with menu commands type 7 From the Main Menu type F and press RETURN to access the Files Menu then type D and press RETURN to download 8 At the prompt type zdxhelp hlp then press RETURN tw...

Страница 20: ...iModemZDX Help Windows 3 x 1 Open the directory into which you downloaded the ZDXHELP HLP file 2 Move the file to a permanent location on your hard drive 3 In File Manager select ZDXHELP HLP then clic...

Страница 21: ...data files and updated software such as video and printer drivers The MT1932ZDX can also connect you to the Internet an international computer network of universities libraries businesses and governm...

Страница 22: ...200 16 800 14 400 12 000 9600 7200 4800 2400 1200 and 300 bps for communicating with older modems as well as with other V 32terbo modems Automatic fallback to slower speeds in noisy line conditions a...

Страница 23: ...hes can handle data rates up to 57 000 bps while the newer ones can handle data rates up to 115 000 bps u Serial Cable To connect the MT1932ZDX to your computer you must provide a serial cable obtaina...

Страница 24: ...mm and fax communications software Except for the ZDX Mac all versions come with a data and fax communications package You must have Microsoft Windows 3 1 or later to run this software If you require...

Страница 25: ...into the telephone jack in your home or office Plug the other end into the LINE jack on the MT1932ZDX Note The ZDX s LINE jack is not interchangeable with the PHONE jack Do not plug the telephone into...

Страница 26: ...which the 28 indicator should light If this does not happen check that the power switch is on the power supply is solidly connected and the AC outlet is live u Surge Protectors and Lightning Power su...

Страница 27: ...the RS 232C V 24 interface CD Carrier Detect The CD LED lights when the modem detects a valid carrier signal from another modem It is on when the modem is communicating with the other modem and off wh...

Страница 28: ...goes off a connected modem will disconnect The state of the TR LED matches that of the DTR circuit on pin 20 of the RS 232C V 24 interface EC Error Correction V 42 The EC LED lights continuously when...

Страница 29: ...tep 5 Call the Multi Tech BBS in Chapter 2 or the reader response form at the end of this guide Command AT Attention Code Values n a Description The attention code precedes all command lines except A...

Страница 30: ...d An Auto Reliable Buffering Values n 0 or 1 Default 0 Description A0 Discard data received during establishment of a reliable connection A1 Buffer data received during establishment of a reliable con...

Страница 31: ...n BA0 Set baud adjust off speed conversion on Serial port speed is independent of modem data rate BA1 Set baud adjust on speed conversion off Serial port speed is same as modem data rate Command Cn Ca...

Страница 32: ...n DTR drops the modem hangs up While DTR is low the modem accepts commands but will not dial or auto answer until DTR goes high again D2 Same as D1 D3 When DTR drops the modem hangs up and resets as i...

Страница 33: ...he terminal Command En V 42 Error Correction Modes Values n 0 1 or 2 Default 1 Description E0 V 42 non error correction mode V 42 disabled E1 V 42 auto reliable mode E2 V 42 reliable mode V 42 enabled...

Страница 34: ...de flow control Command En Pacing Computer Initiated Flow Control Values n 12 or 13 Default 13 Description E12 Pacing disabled E13 Pacing enabled Command En Data Compression Values n 14 or 15 Default...

Страница 35: ...alues from ROM if F8 was previously stored load user default values from non volatile memory if F9 was previously stored F8 Read factory default values when F is issued effective only if you store F8...

Страница 36: ...ommand Gn Guard Tones Values n 0 1 or 2 Default 0 Description G0 Turn off ITU T guard tones G1 Turn on ITU T 550 Hz guard tone G2 Turn on ITU T 1800 Hz guard tone Notes The ZDXK is locked to the ITU T...

Страница 37: ...es x password 6 10 characters Default MULTI TECH Description Stores a new remote configuration login password Note entry must be all CAPS Command Ln List Commands Values n 5 8 Default None Description...

Страница 38: ...call at 300 bps MB1200 Originate call at 1200 bps MB2400 Originate call at 2400 bps MB4800 Originate call at 4800 bps MB7200 Originate call at 7200 bps MB9600 Originate call at 9600 bps MB14400 Origi...

Страница 39: ...n 0 or 1 Default 0 Description P0 60 40 break make pulse ratio P1 67 33 break make pulse ratio Note The ZDXK is locked to a 67 33 pulse ratio P1 Command Qn Result Codes Enable Disable Values n 0 1 or...

Страница 40: ...R2 Let CTS drop on disconnect for time set by S24 then go high again Command RDn Square Wave Ring Detect Values n 0 or 1 Default 1 ZDX 0 ZDXI ZDXK Description RD0 Modem detects only sine wave rings R...

Страница 41: ...Values r S register number Default None Description Read value of register Sr and display value in 3 digit decimal form Command Sn Data Set Ready Control Values n 0 1 or 2 Default 1 Description S0 Fo...

Страница 42: ...57600 bps SB115200 Set serial port to 115200 bps Note Baud adjust must be off BA0 to enable fixed baud rate Command Sy Enter Setup Password Values y password 6 10 characters Default MODEMSETUP Descri...

Страница 43: ...coded modulation Command Un Loopback Test Modes Values n 0 1 2 or 3 Default None Description U0 Enable local analog loopback originate mode U1 Enable local analog loopback answer mode U2 Enable remote...

Страница 44: ...c result codes CONNECT only does not look for dial tone or busy signal X1 Extended result codes CONNECT 28800 CONNECT 33600 etc does not look for dial tone or busy signal X2 Extended result codes with...

Страница 45: ...Reset modem to default values Defaults come from user NVRAM if W0 is set from factory ROM if W1 is set Command Dialing Pause Values n a Description Placed in dialing command comma causes dialing paus...

Страница 46: ...n dial command causes modem to wait for a call card tone before processing next part of command such as a call card number Command AT CR Remote Configuration Escape Sequence Values n a Description Ini...

Страница 47: ...CR Escape Sequence Values n a Description Alternate escape method Puts modem in com mand mode while remaining on line Send a BREAK signal followed by AT up to sixty command characters and a RETURN Yo...

Страница 48: ...hat have occurred S2 decimal 0 127 43 Sets ASCII code for the escape code character S3 decimal 0 127 13 M Sets ASCII code for the RETURN character S4 decimal 0 127 10 J Sets ASCII code for the LINE FE...

Страница 49: ...70 Sets spacing and duration 80 255 80 of dialing tones 50 ms is 80 255 80 the recommended minimum S13 decimal 0 1 127 37 Sets ASCII code for remote configuration escape character S13 0 disables remo...

Страница 50: ...The 0 default disables the timer S32 100 ms 0 255 20 Sets the time the modem will wait for a RETURN to be entered during escape sequence execution S34 1 char 0 60 10 Sets the number of com acter mand...

Страница 51: ...1 CONNECT 1 CONNECT 2 RING 2 RING 3 NO CARRIER 3 NO CARRIER 4 ERROR 4 ERROR 5 CONNECT 1200 5 CONNECT 1200 6 NO DIALTONE 6 NO DIAL TONE 7 BUSY 7 BUSY 8 NO ANSWER 8 NO ANSWER 9 CONNECT 2400 10 CONNECT...

Страница 52: ...lies elsewhere The following symptoms are typical of problems you may encounter None of the LEDs light when the modem is on The modem does not respond to commands The modem dials but is unable to make...

Страница 53: ...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 defective If you have another Multi Tec...

Страница 54: ...nnot make a connection yet the modem s TR indicator is on click on the Window menu to see if more than one terminal is open The modem s TR indicator shows that the software has made a connection with...

Страница 55: ...M2 so you should change their IRQs to unused ones if possible If you use Windows 95 right click on My Computer select Properties from the menu click on the Device Manager tab double click on Ports the...

Страница 56: ...cted to both the modem s LINE jack not the PHONE jack and the telephone wall jack If the cable looks secure try replacing it If that doesn t work the problem may be in your building s telephone instal...

Страница 57: ...u hear harsh sounds then another modem is answering the call and the modems may be having problems negotiating because of modem incompatibilities or line noise Try connecting at a lower speed The Mode...

Страница 58: ...Cannot Connect When Answering Auto answer may be disabled Turn on auto answer in your datacomm program or send the command ATS0 1 to your modem in terminal mode File Transfer Is Slower Than It Should...

Страница 59: ...l port baud rate to four times the data rate Your UART may not be reliable at serial port speeds over 9600 bps or 19 200 bps Turn off data compression reset your serial port speed to a lower rate or r...

Страница 60: ...connecting at a slower speed or disabling error correction With no error correction however line noise can cause garbage characters Try entering the L8 List Online Diagnostics command in online mode m...

Страница 61: ...oftware license agreement MULTI TECH SOFTWARE LICENSE AGREEMENT Multi Tech Systems Inc MTS agrees to grant and Customer agrees to accept on the following terms and conditions a non transferable and no...

Страница 62: ...rotect its own proprietary information to prevent the unauthorized copying or use by third parties of the software or any of the other materials provided under this Agreement Any previous version of t...

Страница 63: ...le statute or rule of law they are to that extent deemed to be omitted This is the complete and exclusive statement of the Agreement between the parties which supersedes all proposals oral written and...

Страница 64: ...telephone line may result in the devices not ringing in response to an incoming call In most but not all areas the sum of the REN s should not exceed five 5 0 To be certain of the number of devices t...

Страница 65: ...zed repairs void registration and warranty 8 This equipment cannot be used on public coin service provided by the telephone company Connection to Party Line Service is subject to state tariffs Contact...

Страница 66: ...sures 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 receiver is...

Страница 67: ...aintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user...

Страница 68: ...tothePublicSwitchedTelephone Network PSTN provided by British Telecommunications plc or Kingston Communications Hull plc Circuit supply by British Communications Mercury Communication or Hull City Cou...

Страница 69: ...out in BABT SITS 82 005S D All apparatus connected to this modem and thereby connected directly or indirectly to the British Telecom public switched telephone network must be approved apparatus as de...

Страница 70: ...ring to the PBX This apparatus has been approved for the use of the following facilities Auto calling Loop disconnect and MF dialing Phone number storage and retrieval by a predetermined code Operatio...

Страница 71: ...rective 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...

Страница 72: ...Bell 212A and 103 113 ITU T V 22 V 22bis V 29 V 32 V 32bis V 42 V 42bis V 21 V 23 in international ZDXI versions Compatibility Fax ITU T Group 3 T 4 T 30 V 21 V 27ter V 29 V 17 and EIA TR29 2 Error Co...

Страница 73: ...300 bps PSK at 1200 bps QAM at 2400 4800 and 9600 bps non trellis QAM with trellis coded modulation TCM at 9600 12K 14 4K 16 8K 19 2K bps Fax Modulations V 21 CH2 FSK at 300 bps V 27ter DPSK at 2400 a...

Страница 74: ...AM 1700 Hz originate answer V 17 TCM 1800 Hz originate answer Transmit Level 10 dBm Frequency Stability 0 01 Receiver Sensitivity 43dBm under worst case conditions AGC Dynamic Range 43 dB Interface Co...

Страница 75: ...f Hook Terminal Ready Error Correction Fax Speaker Command controlled speaker for call progress monitoring Manual Control Power switch Enviromental Temperature range 0o 50o C 32o 120o F humidity range...

Страница 76: ...EXPRESSED OR IMPLIED AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED This warranty does not apply to any products that have been damaged by lig...

Страница 77: ...ly send it to us freight prepaid Include a description of the problem a return shipping address and a check or purchase order for out of warranty repairs Please send modems that require repairs to the...

Страница 78: ...perform the following steps 1 Set your communications program to 8 N 1 2 Dial our BBS at 800 392 2432 USA and Canada or 612 785 3702 international and local 3 At the prompts type your first name last...

Страница 79: ...like to examine by typing each file area s list number and a RETURN 3 Enter L to list all the files in the selected file areas Enter C to go forward in the file list and P to go back 4 Mark one or mo...

Страница 80: ...URN to select the Sysop conference Enter the name of the recipient or Sysop the subject and the message text Press ESCAPE to finish then type S to save the message and exit To abort the message at any...

Страница 81: ...the Multi Tech Fax Back Service Multi Tech s fax back system provides 24 hour access to sales marketing and technical literature for customers in the U S A Dial 612 717 5888 follow the voice prompts...

Страница 82: ...l it with a check or money order for twenty U S dollars 20 to Multi Tech Systems Inc 2205 Woodale Drive Mounds View MN 55112 Attn Publications Name ________________________________________ Organizatio...

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