Zypcom Z34-PC User's Guide

ZypcomData/Fax/Voice ModemsUser’s GuideZ34-SCZ34-PCPart number: 18008-509DNovember 1997

xZCAUTION: Changes or modifications not expresslyapproved by the party responsible for compliancecould void the user’s authority to operate theequipm

4-164Modem COMM Erroror Modem Not FoundMake sure you have selected the correct COM port inyour communications software setup. Check all thecable conn

4-174Technical SupportIf you could not solve your problem, please call Zypcomtechnical support for assistance. Our number is (510)783-2501; our hours

4-184

APPENDIXA SpecificationsChipsetCirrus Logic CL-MD56xx DSPZ34-PC16C550A/16C450 Register Compatible Buffered UARTZ34-PC and Z34-SC16bit ISA Parallel Bu

Appendix A-2AError ControlV.42 and MNP 2-4 error correctionCompressionV.42bis or MNP Class 5CommandsAT & AT VoiceData: AT Hayes CompatibleFax: EIA

Appendix A-3AHandshakeITU-T T.30 Group 3 FaxVoice StandardsVoice Sample Rate11,025, 9600, 8000, 7200, 4800 HzVoice Compression3-bit/4-bit ADPCM8-bit/

Appendix A-4AS-RAMSITU-T 56K bps upgradeableCables7' telephone cableConnectorsOne RJ11 jack for a telephone line connectionSpeaker InterfaceMinim

B IS-101 Voice CommandsIS-101 VOICE MODE AT COMMANDSYour modem implements a voice AT command set thatallows a DTE to record and play back voice messag

Appendix B-2B+VBT=mBuffer threshold setting. Command sets assert anddeassert threshold points for modem’s transmit buffer.Default is 192,320. +VCID=n

Appendix B-3BVGT=nVolume selection for voice playback. Default is 128.Range is 121-131. +VIPThis command causes the modem to reset all voiceparameter

xiZYour telephone company may make changes in itsfacilities, equipment, operations or procedures thatwould affect the proper functioning of your equip

Appendix B-4B7 Internal MIC and speaker connected totelco. Squelching is active. DCE off-hook.DCE connected to telco.8 N/A9 N/A10 N/A11 N/A12 N/A13

Appendix B-5B +VRA=nRingback-goes-away timer. Command selects thelength of time modem waits between ringbacks beforethe DCE assumes the remote party

Appendix B-6B +VSM=mCompression method selection. This command containsfour parameters that specify the voice compressionmethod, voice sampling rate,

Appendix B-7B+VSP=nSpeakerphone on/off control. This command turns thespeakerphone mode on (n=1) and off (n=0).#VSPS=nSpeakerphone type selection. T

Appendix B-8B

APPENDIXC Fax CommandsFAX CLASS 1 AT COMMANDSYour modem implements the EIA-578 data/fax Class 1AT command set standard. This AT command setallows a D

Appendix C-PBC+FMR?Identifies product version number+FREV?Identifies product version numberFax Class 1 AT Commands+FCLASS=nMode selection default=0.

Appendix C-3C+FTH=nTransmits HDLC data. The only setting for thiscommand is 3.+FTM=nSelects transmit data modulation mode. Modulationstandards follo

Appendix C-PBC

APPENDIXD Modem TermsThis chapter will address some basic terminologyassociated with your modem and your communicationssoftware.ModemModem is a compou

xiiZCanadian Department of Communications—Requirements For End UsersThe Canadian Department of Communications labelidentifies certified equipment. Th

Appendix D-2DDTE / DCEDTE stands for Data Terminal Equipment and DCEstands for Data Communication Equipment. TheComputer or terminal is the DTE and t

Appendix D-3Dresets and then configures the modem to NVRAM storedprofile 0.AT&F S0=1 &W1 &Y1&F configures the modem to factory default

Appendix D-4DData Rates and DTESpeedA data rate (or line speed) is sometimes confused with aDTE speed setting in PC software. In this manual, ATcomma

Appendix D-5DXON/XOFFA handshaking, flow control mechanism thatcommunicates that the device is ready to accept moredata. The flow control is embedded

Appendix D-6DDuplexA communication system which is capable ofcommunicating in both directions can be half duplex orfull duplex. Half duplex allows co

APPENDIXE Removing Win 95 DriversIf you have previously installed a modem profile basedupon a Cirrus Logic chipset (14.4K, 28.8K, old33.6Kbps) in the

Appendix E-PBEOne way to find these keys is to do a search for Zypcomor Cirrus in the registry file. You will find these threekeys when you search fo

Appendix E-3E7) Windows 95 will display the modem, and you willsee a “Properties” button. Press the Propertiesbutton, press the Connection tab, press

Appendix E-PBE

APPENDIXF Downloading FirmwareDownloading the Latest Modem Firmware1) Load your communication software (SuperVoiceterminal or ProComm).2) Enter Local

xiiiZThe Load Number (LN) assigned to each terminal deviceindicates the total load percentage that can be con-nected to a telephone loop. The termina

Appendix F-2F6) Set modem up for downnload, then type thefollowing (in upper- or lower-case):AT@L <ENTER>Modem goes off-hook momentarily and sev

Appendix F-3FCAUTION: Don’t abort the transmission (using theEscape key or by turning off the PC or modem)until after you see the “... END” message.

Appendix F-4F

xivZ

DescriptionThe Zypcom Z34-SC and Z34-PC modemsare versatile desktop communication devices.These devices have high-speed data transfer(56Kbps) and send

1-21Featuresq V.34+ 33,600bps asynchronous data modemwith throughput up to 115.2Kbpsq 56000 bps using USR x2 technology*q V.42 and MNP 2-4 error corre

1-31System RequirementsZ34-SC Requiresq PC with a free COM port 1, 2, 3, or 4q 3.5” floppy driveq Hard disk drive with 5MB free spaceZ34-PC Requires

1-41Data ModeIn data mode, the modem can operate at a line speed ofup to 56,000 bps. These modems will automaticallydownshift during the initial hand

1-51Fax modeIn fax mode, the modem operates at up to 14,400 bps(transmit and receive), and implements all the datarates and modulation schemes for sta

iiZCopyright 1997 by Zypcom, Inc.Document No. 18008-509DNovember 1997This manual is published by Zypcom, Inc. who reserves the right tomake changes an

1-61On the Z34-SC modem, everything that is required tooperate the modem in this mode of operation is provided(MIC, speaker, software and modem).With

1-71Modem InterfacePlug and Play HostInterfaceThe Z34-PC supports both PC 16-bit Plug-and-Play andNon-Plug-and-Play ISA Bus applications. You may use

1-81MicrophoneInterfaceThe modem provides a microphone interface thatconnects a microphone to the modem. On the Z34-SC,it is built-in on the front le

1-91Z34-PCq 56,000 bps data/fax/voice modemq Telephone cord (RJ11-RJ11)q External MICq Modem driver utility disketteq SuperVoice communication softwar

1-101

CHAPTER2 InstallationIntroductionThe Zypcom Z34-SC and Z34-PC aretechnologically advanced modems with manypowerful features for communicating into the

2-22For either modem, you must provide a telephone lineterminated with a modular jack, as well as ascrewdriver. For the Z34-PC, you must also provide

2-32If you set up your modem for Plug-and-Play, Windows95 will assign the COM port and IRQ. However, it isrecommended that you select your own settin

2-42Hardware Installation StepsZ34-PC ModemHardwareInstallation1. Turn your computer’s power off.2. Remove the cover from your PC and retain thescrews

2-526. With the metal bracket facing towards the rear ofyour computer, insert the modem’s “gold fingers”into the slot. Depending on the type of compu

iiiZContentsChapter 1 IntroductionDescription ... 1-1Features ...

2-62Z34-PC NOTE: When you are using the speakerphonefeature, you will notice that sound is output from onlyone speaker. This is normal. The reason yo

2-72NOTE: The Z34-SC already has an MIC andspeaker built-in, so no additional connections ofMIC or speaker is required.Windows 95If you are using Wind

2-82Earphone HeadsetAn optional headset phono jack allows you to use theZ34-PC as a hands free telephone set. The optionalheadset comes with a microp

2-92Windows 95 then asks whether or not to use theinformation already included in the system. If theISAPNP Unimodem ID is not already supported,Windo

2-102Z34-SC Installationfor Windows 95Make sure the modem is turned on and you haveinstalled the modem serial cable. Start Windows 95, leftclick the

2-112NOTE: Do not increase SuperVoice'sspeakerphone volume-in or volume-out above the75-percent mark; otherwise, frequentspeakerphone feedback w

2-122Using HyperTerminal with Windows 95After installing the modem and the .INF file, runWindows 95 HyperTerminal (in the Program Accessoriesmenu). I

2-132Installation ProblemsCOM Port Address and IRQ Hardware Conflicts aresome of the most common installation problems. Theyoccur when more than one

2-142CAUTION: Removing the device name from theComputer Properties screen may cause problemslater when using the removed board..INF File ProblemTo de

2-152What To DoOn the Computer Properties screen, manually select themodem’s IRQ. This may or may not work. Alternately,free an IRQ line by deleting

ivZChapter 3 AT CommandsIntroduction... 3-1Functional Modem States...

2-1626) After double-clicking your modem type, a newscreen displays information about your modem.This screen informs you if the device is workingprope

2-1723) To determine which COM port addresses areavailable, select the Input/Output (I/O) circle at thetop of the Computer Properties screen. Scroll

2-182files" will appear in the dialog box, followed by"Installation completed". Click on OK. To accessSuperVoice, click onSTART|PROGR

2-192Making aSpeakerphone CallIn the Speaker Phone box, click on S.Phone. Dial thephone number you wish to call by clicking on thenumbers on the keyp

2-2021. You must indicate to your communication softwarewhich COM port and IRQ have been assigned toyour modem.2. Set the Data Rate to 115.2 or 57.6 K

CHAPTER3 AT CommandsAHayes AT-compatible modem operates withstandard communications software thatenables a computer to control the C-Seriesmodems have

3-23Functional Modem StatesDuring asynchronous AT operation, the C-Seriesmodem functions in one of these six modes:q Command modeq Online (data) modeq

3-33Online CommandModeWhen the modem receives the +++ escape sequence (ora sequence defined by register S2), it enters onlinecommand mode, maintains t

3-43Videophone ModeIn 1996 a new standard adopted by the ITU calledH.324 allows for videophone calls over ordinarytelephone lines. The H.324 standard

3-53CommandResponsesWhen you issue an AT command and end of line flag(<ENTER>) to the modem, your DTE screen shoulddisplay an OK message. If t

vZAbout This ManualShown below is a chronological listing of revisions tothis manual. The revision sequence, date, and synopsisof revised materials a

3-631. Type AT<ENTER> or lower DTR to reset thecommand buffer.2. Use the <BACKSPACE> key to move backward or the<DELETE> key to eras

3-73The notion (n) in the command description represents anumeric option. For example, in the &Dn command, nis a number from 0 through 3. If yo

3-83&G Guard tone control 3–18&K Modem flow control 3–18&P Pulse dial make/break ratio 3–18&Q Communication protocol 3–19&S DSR co

3-93AT Commands For Data ModeA/ (Repeat LastCommand)Repeat the last AT command string issued. An "AT"prefix is not used. Do not terminate

3-103D (Dial)Instructs the modem to dial a specified telephonenumber. The D command has several additionalmodifying commands which can be used in con

3-113Hn (Switch HookControl)Makes the modem pick-up or hang-up the line,depending on the numerical notion that follows H.COMMAND DESCRIPTIONH0 Hang-up

3-123Ln (Volume Control)Sets the speaker volume when the speaker is on.COMMAND DESCRIPTIONL0,1 Low volumeL2* Medium volumeL3 High volumeMn (SpeakerCon

3-133NOTE: The port speed must always be higherthan the highest possible line rate (i.e., 38,400 orhigher). A port speed of 19,200 will cause themax

3-143Wn (ConnectionResult Codes)Selects whether the modem sends the DTE independentmodem connection result codes for speed, error controlprotocol, or

3-153TABLE 4-1 MODEM RESULT CODESWORDS DIGITS X0 X1 X2 X3 X4CONNECT 1 YYYYYRING 2 YYYYYNO CARRIER 3 YYYYYERROR 4 YYYYYCONNECT 1200 5 N YYYYNO DIAL TON

viZWarranty and Limitation of LiabilityZypcom, Inc. warrants that its products will perform inaccordance with Zypcom’s published specifications (orthe

3-163WORDS DIGITS X0 X1 X2 X3 X4CONNECT 36000 32 N YYYYCONNECT 33333 33 N YYYYCONNECT 37333 34 N YYYYCONNECT 38400 28 N YYYYCONNECT 41333 35 N YYYYCON

3-173Yn (Long SpaceDisconnect)Some computer systems end a data session by sendingor receiving a continuous break signal. This capabilityonly works wh

3-183COMMAND DESCRIPTION&C0 CXR always on.&C1* CXR follows true carrier.&Dn (DTR Control)Determines how DTR is interpreted by the modem.

3-193tone is a frequency generated by the answer-sidemodem.COMMAND DESCRIPTION&G0* Disables guard tone.&G1 Enables 550-Hz guard tone.&G2 E

3-203function as &Q0. Use the \Nn command to specifywhich error control protocol is used during aconnection.&Sn (DSR Control)Controls how the

3-213&T8 Initiates Local Analog Loopback with self-test.&Un (TrellisControl)Selects whether the modem transmits or receivesmodulated 9600 bps

3-223COMMAND DESCRIPTION&Y0* Recall stored profile 0 on power-up&Y1 Recall stored profile 1 on power-up&Zn=x (StoreTelephone Numbers)Store

3-233modem always responds to any rate change initiated bythe remote modem.COMMAND DESCRIPTION%G0 Disabled%G1* Enabled-Cn (Generate DataCalling Tone)A

3-2432400. V34 or V34S is for 28800 to 2400. V32B is for14400 to 7200. V32 is for 9600 and 4800. V22B is for2400 and 1200. V22 is for 1200. V21

3-253+MS Examples (DTE speed is 115200):Set 21600 as max rate +MS=V34B,1,0,21600;B1Set 9600 as min rate +MS=V34B,1,9600,0Set 28800 only +MS=V34,1,2880

viiZTHE BUYER AND ZYPCOM AGREE THAT THE SOLE ANDEXCLUSIVE REMEDIES FOR BREACH OF ANY WAR-RANTY CONCERNING THE GOODS SHALL BE REPAIROR REPLACEMENT OF D

3-263%Cn (MNP 5 Control)Controls whether the data sent during the MNP frame iscompressed using MNP Class 5 compression standard.COMMAND DESCRIPTION%C0

3-273\Gn (Modem PortFlow Control)Used for special cases when a non-error controlled, non-buffered modem calls a modem operating in bufferedmode.COMMAN

3-283COMMAND DESCRIPTION\N0 Normal data mode with buffering\N1 Normal data mode with buffering\N2 Force MNP reliable only mode\N3* V.42/MNP auto-relia

3-293\Qn (Serial PortFlow Control)Specifies the DTE-to-modem flow control. Software flowcontrol uses the XOFF command to stop and the XONcharacters

3-303\Xn (XON/XOFFpass-through)If software flow control is enabled (\Q1), this commanddefines whether the XON (11h) and XOFF (13h)characters received

3-313"H0 Disables V.42 bis."H1 Enables V.42 bis only when transmittingdata."H2 Enables V.42 bis only when receiving data."H3* Enab

3-323q Storableq Bit-mappedq Reservedq Read onlyA storable S-register is one whose value can bepermanently saved with the &W<ENTER> command

3-333CAUTION: An asterisk (*) next to the S-registersin this section indicates that it is read only.Escape Character(S2=0-128)Register S2 defines an

3-343Dial Tone Delay(S6=2-255)Register S6 determines how long the modem will waitafter going off-hook before dialing the telephonenumber. The S6 regi

3-353Valid Carrier Detect(S9=1-255)Register S9 sets the amount of time that carrier mustbe received before it is determined to be a valid signal.Each

viiiZService InformationIn the event of malfunction or other indication ofproduct failure, please follow this procedure:1. Call Zypcom Technical Suppo

3-363Guard Time (S12=0-255)Register S12 controls the amount of time, after receivingthree escape characters, that must elapse beforeentering on-line c

3-373S19 ReservedN/AS20 ReservedN/AS21 Bit-mappedN/AS22 Bit-mappedN/AS23 Bit-mappedN/AS24 ReservedN/ADTR Detect Time(S25=0-255)Register S25 determines

3-383Inactivity Timer(S30=0-255)Register sets the length of time (in minutes) that themodem stays online before disconnecting when no datais transmitt

3-39312 = 16,80013 = 19,20014 = 21,60015 = 2400016 = 26,40017 = 28,80018 = 31,20019 = 33,60020 = x2 36,00021 = x2 33,33322 = x2 37,33323 = x2 41,33324

3-403

CHAPTER4 TroubleshootingGeneralAlthough the modem’s default option settings aresuitable for most PC computers, a default optionsetting can cause probl

4-24q Check telephone line with a regular phone tomake sure dialtone is present.q Are speakers connected to the SPKR jack (Z34-PC)?q Is the MIC connec

4-34NOTE: On the Z34-SC, the DTR LED will be on ifthe correct comport is selected.If still unsuccessful, follow the procedures describedbelow to deter

4-44Terminal orComputer SettingsThese are the most common problems involvingterminal or computer settings:1. Check that your computer or terminal oper

4-54OtherCommunicationsProgramsIf you are using a different communications softwarepackage, verify that the modem’s software settingsmatch those of th

ixZFor non-warranty repairs, charges vary according to thespecific model of the modem being repaired. Repaircharges are estimated before an RO number

4-64Other Common ProblemsDTE Doesn’t DisplayWhen your modem and computer or terminal areproperly connected, the screen should display what youtype. I

4-74Screen DisplaysUnusual CharactersIf your DTE screen displays unusual characters whileyou are off-line, check the speed setting of yourcommunicatio

4-84Delays OnConnectionsA small amount of character delay is normal for error-controlled communication links. Large file transfersnormally call for a

4-94Step Two: Modem Retraining. If modem retraining isthe problem, you will be able to determine it easily. Gointo on-line command mode using the es

4-104Step Three: Line Speed Changes. Sometimes delayscan result from a series of retrains that reduce the linespeed of the modem. To check the line

4-114Modem Drops theConnectionFrequent line drops are normally due to a noisytelephone line, a low-quality modem at one end of theconnection, or a mod

4-124To see if this is what you are experiencing, reduce themaximum line speed to a lower number. (Try a real lownumber first, for example, 14400.)

4-134If the modem does not automatically answer whenconnected to a minicomputer or mainframe and theDTR and AA LEDs are on, turn off the echo andrespo

4-1443. If you hear dial tone but the modem does not dial,change the X command setting from X4 to X1, sinceyou probably have a nonstandard dial tone.M

4-154Other Frequently Encountered ProblemsDoes Not DialCorrectlyYour phone system may require that you obtain anoutside line before dialing. In this c