Acer Modemconte User manual

High Performance
V.32bis/V.42bis
14,400 BPS Internal
Plug and Play
FAX/Voice/Data
Modem
User's Manual
Contents
Section One Introduction ........................... 1
Section Two Installation ............................. 1
Section Three AT Command Set .................. 4
Section Four S Register Summary ........... 12
Section Five Result Codes......................... 13
Section Six Troubleshooting ................... 14
Section Seven Specifications ....................... 16
Section Eight Support And Service ........... 16
Section Nine FCC, DOC, Copyright And
Other Notices ....................... 17
Part #49.AA808.001 ACER14.4 TAD-SP1.xx
Featuring Advanced Full-
Duplex Speakerphone
Functions

1
Section One - Introduction
This 14.4 Kbps FAX/Voice/Data Modem is specifi-
callydesignedfortheAcerAspirelineofcomputers,enabling
theirconnection toallpopularhighspeedmodemsavailable
today. Your new modem features advanced speakerphone
functionsforhands-freevoicecommunicationaswellasPlug
and Play for simplified installation. This manual describes
the hardware installation procedures for your new modem
product. Additional information on AT commands and S-
registersareprovidedsothatyoursystemcanbecustomized
for a particular operating environment.
Section Two - Installation
This section will provide step by step instructions on
howtoinstallyournew14.4KbpsFAX/Voice/Datamodem.
Installation of this modem product is a two-step process
consisting of actual hardware installation and communica-
tion software installation and configuration.
2.1 Unpacking Your Modem
Beforeyoubeginyourinstallation,becertainthatyou
have all the items listed below. This package contains:
• A modem • A telephone cable
• User's manual •Configurationsoftware
• Software for the modem • Software user's manual
2.2 Hardware Installation
Installation of this modem requires opening and ma-
nipulating your PC. Exercise caution at all times when
working with AC powered and static-sensitive equipment.
Turn off and unplug your PC be-
fore installation. Discharge any
static electricity from your body
by touching any bare metal sur-
face of the PC system, such as its
powersupply cover.
1. Turnoffandunplugyourcom-
puterfromthe AC outlet.
2. Removeyourcomputer'scover
(refertoyourcomputer'sowner
manual).
3. Select any available half-card
Figure 2-1
Expansion
Slots

2
slot,andthenremovethe
slotcover(refer to Fig-
ure 2-1).
4. Carefully slide the in-
ternal modem into the
slot you have chosen,
applyingevenpressure
untilthemodemiscom-
pletelyseatedintheslot.
5. Fasten the retaining
bracket with the screw
from the slot cover.
Makesurethemodemisproperlyaligned.
Storetheslotcover for futureuse.
6. Connectthecomputersoundcard'smicro-
phone/speakerinterconnector plugtothe
modem'smic/speakerconnector(Seefig-
ure 2-2).
7. Replace the computer cover and plug in
yourcomputer.
8. Connect the telephone cable from the
modem'sLINEconnector(Seefigure2-3)
tothetelephonewalljack.
9. Optionally connect your telephone to the
modem's PHONE connector (See figure
2-3).
10. ConnectthemicrophoneplugintotheMIC jack(Seefigure
2-3).
11. Connectyour poweredspeaker(s)intotheLineOut jackof
thesoundcard.
12. Turn your computeron.Your modem isnowinstalled.
2.3 Plug and Play
Your modem supports Plug and Play (PnP) and can
easilybe configuredusing anyPlugandPlaycompliantPC.
YourPCisPnPcompliantifyouhave:1)anoperatingsystem
that supports Plug and Play, and 2) PnP BIOS/chipset.
InaPnPcompliantoperatingsystem(e.g.Windows®
95), follow the instructions included with the operating
system to configure Plug and Play cards.
OnAcerpre-configuredsystemswiththismodemand
Windows 95 software, this modem has been set to:
'MODEM'Sierra 14.4 Data Fax Voice SQ3230
Figure 2-2
Mic/Speakerconnector
PHONE
LINE
MIC
Figure 2-3

3
COM 1, IRQ 4
'MODEMVOICE'
Sierra 3230 (Voice)
DMA 3, IRQ 10
2.4 Software Installation/Configuration
Youarenowreadytoinstallandconfigurethecommu-
nication software. Refer to your software manual for instal-
lation procedures. Your software must be configured to
communicate with the modem on the same COM port and
IRQ line used by the modem.
Wesuggest thefollowing communicationparameters
when you first use your data communication software.
Consult the software manual for information on using these
and other parameters/features.
38,400 bps; 8 data bits; no parity; 1 stop bit; RTS/
CTS flow control set to “on;” initialization string:
AT&F
The commands used by the modem are compatible
with the command set used by the “Hayes V-series Ultra
Smartmodem 14400” modems, select this modem type in
yourdatacommunicationssoftware.Selecta“GenericClass
2” modem type in your FAX software and select a “Sierra”
modem type in your voice software.
2.5 Using Fax, Voice, and Speakerphone
Capabilities of the Modem
Your modem has built-in advanced FAX, Voice, and
Full Duplex Speakerphone functions. These functions are
accessedthroughsoftware. PleaseconsultyourFAX/Voice/
Speakerphone software manual about procedures on using
thesefunctions.Notethatthemodem'sFAX/Voice/Speaker-
phone commands are used by the software to implement
these functions and are not designed to be used as stand-
alone AT commands.
Voice functions include recording and playback of
voiceprompts(files).Youmay recordorplaybackvoicewith
your modem by attaching a telephone to the RJ-11 jack
marked"PHONE" orbyattachingamicrophonetotheMIC
jacklocatedon theback ofthemodem bracket.Then follow
instructions in the FAX/Voice/Speakerphone software on
recording and playback of voice prompts.

4
2.6 Testing Your Modem After Installation
In order to test your modem you should be familiar
with your communication software. Load and set up your
communication software and enter into “terminal mode.”
Make sure that the COM Port and IRQ settings of the
software modem match the modem. Type AT on your
terminalscreenandpressENTER.Youmaysee“AATT”or
nothing on the screen. In either case, the modem should
respondwithanOKor0.Ifitdoesnot,pleaserefertoSection
6for troubleshooting information.
2.7 Using Your Modem
Thecommunicationsoftware includedwithyour mo-
dem product provides a user friendly interface to access the
fax,voice,anddatafunctionsofyourmodem.Thissoftware
should be sufficient for all of your communication needs.
There may be times when you need to access the modem
manually via modem commands. Read Section 3 for a
summary description of the modem command set before
manually accessing the modem. You may want to read the
softwaremanualfirst,however,asthesoftwaremayalready
provideauserfriendlymethodofaccessingthefunctionsyou
need (i.e. dialing or answering calls).
2.8 Where To Go From Here
You should familiarize yourself with the functions
available from the included software by reading its manual.
You will be accessing most, if not all, of the modem's
functions from this software. You may also use any other
commercially available communication software with the
modem.ReadSection3onlyifyouareinterestedinaccessing
themodemmanually,andnotthroughtheincludedsoftware.
Section 4 and 5 contain reference material, and can be
skipped.Ifyouhavedifficultiesgettingyourmodemtowork,
read Section 6, Troubleshooting, to find answers to com-
monly asked questions and problems.
Section Three - AT Command Set
3.1 Executing Commands
Commands are accepted by the modem while it is in
Command Mode. Your modem is automatically in Com-

5
mand Mode until you dial a number and establish a connec-
tion. Commands may be sent to your modem from a PC
running communication software or any other terminal de-
vices.
Yourmodemiscapableofdatacommunicationatrates
of: 300,1200,2400, 4800, 9600, 14400, 19200, 38400, and
57600 bps. Make sure your COM port baud rate setting in
your communications software is set to one of the above
speeds.
3.2 Command Structure
AllcommandssenttothemodemmustbeginwithAT
andendwithENTER. Allcommandsmaybetypedineither
upper or lower case, but not mixed. To make the command
line more readable, spaces may be inserted between com-
mands. If you omit a parameter from a command that
requires one, it is just like specifying a parameter of 0.
Example:
ATH[ENTER]
This command causes your modem to hang up.
3.3 Basic AT Commands
Inthefollowinglistings,alldefaultsettingsareprinted
in bold text.
Command Function
AManuallyanswerincomingcall
A/ Repeatlastcommandexecuted.Donotprecede
A/with ATor followwith ENTER
AT Appearsatthebeginningofeverycommand
line
B_ B0 CCITTmode
B1 Bell mode
B2 WithV.23, originatecalls transmittingat 75
bps,receivingat1200bps.Answercalls
transmittingat1200 bps, receivingat 75bps.
B3 WithV.23,originatecallstransmittingat1200
bps,receivingat75bps.Answercalls
transmitting at 75 bps, receiving at 1200 bps
D_ 0 - 9, A-D, # and *
L lastnumberredial

6
P pulsedialing
T touch-tonedialing
W waitforseconddialtone
, pause
@ waitforfivesecondsofsilence
! flash
; returnto Command Modeafterdialing
: returnto Command Modeafterdialing
andmaintainconnection
DS=n Dialoneofthefourtelephonenumbers(n=0-
3)storedinthemodem’snon-volatilememory
E_ E0 Commandsarenotechoed
E1 Commandsareechoed
+++ TIES EscapeCharacters-Switchfrom Data
ModetoCommandMode
H_ H0 Forcemodemon-hook(hangup)
H1 Forcemodemoff-hook(makebusy)
I_ I0 Display 14400
I1 Display 000
I2 Internalmemorytest
I3 Firmwarerevisionnumber
I4 Configurationsettings
I6 DSP
L_ L0 Lowspeakervolume
L1 Lowspeakervolume
L2 Mediumspeaker volume
L3 Highspeakervolume
M_ M0 Internalspeakeroff
M1 Internal speaker on until carrier detected
M2 Internalspeakeralwayson
M3 Internalspeakeronuntilcarrierdetectedand
offwhiledialing
N_ N0 LinespeedsetbyregisterS37.
N1 Originatewithautomaticratenegotiation
startingatS37setting,answeratanyspeed.
N2 Adds V.23 to N1
N3 Originatinglinespeedsetviaregister S37
N4 Same as N3
N5 Originatewithautomaticratenegotiation
starting at S37 setting, Anwer only at S37
setting
O_ O0 Return to Data Mode

7
O1 ReturntoDataModeandinitiateanequalizer
retrain
P Set Pulse dial as default
Q_ Q0 Modem sends responses
Q1 Modemdoesnotsendresponses
Q2 Modemsendsresponsesinoriginatemodebut
notinanswermode
Sr?r=0-30 Readand display valuein registerr
Sr=nSet register r to value n (r=0-30; n=0-255)
TSet Tone Dial as default
V_ V0 Numericresponses
V1 Word responses
W W0 Report Connect at DTE speed only.
W1 ReportConnectatDTEspeedwithnegotiation
progress
W2 ReportConnectatDCEspeedonly
X_ X0 HayesSmartmodem300compatible
responses/blinddialing
X1 Same asX0plus allCONNECT responses/
blinddialing
X2 Same as X1plusdialtone detection
X3 SameasX1plusbusysignaldetection/blind
dialing
X4 Allresponsesanddialtoneandbusysignal
detection
Y_ Y0 Modem doesnotsendorrespondtobreak
signals
Y1 Modemsendsbreaksignalforfourseconds
beforedisconnecting
Z_ Z0 Reset and retrieve active configuration
profile 0
Z1 Resetandretrieveactiveconfiguration
profile1
3.4 Extended AT Commands
&C_ &C0 ForceCarrier Detect SignalHigh (ON)
&C1 TurnonCarrierDetectsignalwhenremote
carrier signal is present
&D_ &D0 Modemignores the DataTerminal Ready
signal

8
&D1 ModemreturnstoCommandModeafter DTR
toggle
&D2 Modemhangsup,returnstotheCommand
Modeafter DTR toggle
&D3 ResetsmodemafterDTRtoggle
&F_ &F0 Recallfactorydefaultconfiguration
&F3 Resetforextendedresponses
&G_ &G0 Guardtonedisabled
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&K_ &K0 DisableDTEflowcontrol
&K3 RTS/CTSflow control
&K4 XON/XOFFflowcontrol
&K5 TransparentXON/XOFFflowcontrol
&L_ &L0 Dialuptelephoneline
&L1 LeasedLine
&M_ &M0 Asynchronousoperation
&N_ &N0 Specialechocancellertrainingsequencenot
required
&N1 Special echo canceller training sequence
required
&P_ &P0 UnitedStatessettingforoff-hook(make)-
to-on-hook(break) ratio
&P1 UKandHongKongoff-hook(make)-to-on-
hook (break) ratio
&Q_ &Q0 Asynchronousoperation
&Q5 Modem connects using MNP or V.42
&Q6 ModemconnectsinNormalmode
&S_ &S0 Force DSR Signal High (ON)
&S1 DSRisoffincommandmode,oninon-line
mode
&T_&T0 Ends test in progress
&T1 PerformLocalAnalogLoopbackTest
&T3 PerformLocalDigitalLoopbackTest
&T4 GrantRemoteDigitalLoopbackTest
requestbyremotemodem
&T5 DenyRemoteDigitalLoopbackTest request
byremotemodem
&T6 PerformaRemoteDigitalLoopbackTest
&T7 PerformaRemoteDigitalLoopbackTestand
Self-Test

9
&T8 PerformLocalAnalogLoopbackTestand
Self-Test
&U_ &U0 Enable Trellis Coding @ V.32
&U1 DisableTrellisCoding @V.32
&V_ &V0 DisplaysActiveandStoredProfile0
&V1 DisplaysActiveandStoredProfile1
&W_ &W0 StorestheactiveprofileasConfiguration
Profile0
&W1 StorestheactiveprofileasConfiguration
Profile1
&Y_&Y0 ConfigurationProfile0activeuponPower
on or reset
&Y1 ConfigurationProfile1activeuponPoweron
orreset
&Zn=x n=0-3 Storetelephonenumberxintonon-volatile
RAM
%E_ %E0 V.22bisauto-retraindisabled
%E1 V.22bisauto-retrainenabled
3.5 MNP/V.42/V.42bis Commands
%Ann=0- Setauto-reliablefallbackcharacterton(where
127 n=0to127,ASCII).Requiresthe \C2setting
%C_ %C0 DisableMNPClass5datacompression
%C1 Enable MNP Class 5 data compression
%D_ %D0 512bytedictionaryforV.42bis
%D1 1Kbytedictionary
%D2 2Kbytedictionary
\C_ \C0 Do not buffer data during LAPM/MNP
handshaking
\C1 Bufferalldatafor4 seconds, untilreceiving
200 characters or until a packet is detected
\C2 Donotbufferdata; switch tonormal mode
whenfallbackcharacterisdetected
\G_ \G0 Disable DCE flow control
\G1 EnableDCEflowcontrol
\N_ \N0 Normaldata-linkonly
\N1 Directdata-linkonly
\N2 MNP data link only
\N3 MNP/Normaldata link
\N4 V.42 data link only
\N5 V.42/Normal data link

10
\N6 V.42/MNP/Normaldatalink
\Q_ \Q0 Turnoffflowcontrol
\Q1 XON/XOFFsoftwareflowcontrol
\Q2 CTSsignalunidirectionalhardwareflow
control
\Q3 RTS/CTSsignalbi-directionalhardware
flowcontrol
\Q4 XON/XOFFunidirectionlflowcontrolfrom
modem
\TnInactivity timer, where n = 0 to 90 minutes.
Default is 0
\V_ \V0 Donotsendextendedresponses
\V1 Sendextendedresponseset1
\X_ \X0 ProcessXON/XOFFbutdon’tpassthrough
\X1 ProcessXON/XOFFandpassthrough
#CC_ #CC0 CallerIDdisabled
#CC1 FormattedCallerID(Date,TimeNumber)
#CC2 UnformattedCallerID
3.6 Fax Class 2 Commands
+FAA=n Data/Fax auto answer enable. Default is 0
+FBOR Data Bit Order
+FBUF=? BufferSize
+FBUG SessionMessageReportingParameter
+FCIG ReportRemoteIDResponse,CIG
+FCFR ConfirmationtoReceivePrompt
+FCLASS ServiceClassIdentificationandControl
+FCON FacsimileConnectionResponse
+FCR CapabilitytoReceive
+FCSI ReportRemoteIDResponseCalledStation
+FCSIG=n LocalPollingIDString
+FDCS:<string> ReportSessionResponse
+FDCC=n DCEFaxCapabilitiesParameters
+FDIS:<string> ReportRemoteCapabilitiesResponse
+FDIS=n CurrentSessionNegotiation
+FDR ReceivePhase C Data
+FDT[=]n Transmit Phase C Data
+FDTC: ReportRemoteCapabilitiesResponse
+FET: PostPageMessageResponse
+FET=n EndthePageorDocument
+FHNG CallTerminationStatusResponse
+FHR: ReportReceivedHDLCFrameResponse
+FHT: ReportTransmittedHDLCFrame

11
+FLID=n LocalID string(TSI/CSI)
+FMDL? RequestDCEModel
+FMFR? RequestDCEManufacturer
+FPPR: PartialPageReportResponse
+FPTS: ReceivePageTransferStatusResponse
+FPTS: TransmitPageTransferStatusResponse
+FPTS=n PageTransferStatusParameter
+FREV? RequestDCERevision
3.7 Voice Mode Commands
#VA=m Enable/disableAGC
#VAA=n Selectauto-answermode
#VB=f1,t Generatebeeptone(f1=frequency,t=duration)
#VBL=n Setsvoicebufferlengthcontrol
#VBO=n Setbinaryoffsetmode
#VBS=n SpecifydatatransferviaDMA
#VC Disable, Enable <DLE><CAN> and DTMF
abort
#VCH=n SetDMAchannel
#VDR=e,r Enabledistinctiveringdetection
#VD0 Transmitvoicedata
#VD1 ReceiveVoiceData
#VF=n SetFIFOsize
#VG=n Gainsettinginvoicerecordmode
#VH=n Energizerelay
#VL Setrun-lengthencoding
#VM=n Microphonecommand
#VNH=n Sethookbehaviorforfaxanddatacallswithin
voicecalls
#VRA=n Ringbackgoesawaytimer
#VRN=n Ringbacknevercametimer
#VSC=n Setcompressionmodeton
#VSD=0,1,2 Silencedeletioncontrol(disable,1sec,.5sec.)
#VSI=n Setsilenceendofmessagetimer
#VSM=n Set CODEC mode to n
#VSn Activatevoicemode(DTErate n)
#VSP=n Setmonitormode
#VSR=n Enableactionsand/orspeakerphoneresponse
codes
#VSS=n Set sample rate to n
#VST Setsilencethreshold-43dBm/-47dBm
#VSV Transmit voice data, listen for DTMF and
CNG
#VTI=n Supervisionpointqualifier
#VTn Controls command mode DTMF and CNG
detection

12
#VTR=n Loopcurrentinterruptqualifier
#VZ=n Setaudiomode
: Pagerdialmodifier
3.8 Speakerphone Commands
#SPC=n SelectAEC/EECechocancellation
#SPD=n Downloadspeakerphoneparameters
#SPF=n Selectauto/fixedechocancellation
#SPG=n Setmicrophonegain
#SPL=n SetDSPmicrophonegain
#SPM=n Enablespeakerphone
#SPT=n Speakerphoneforcedtrain
#SPU=n Uploadspeakerphoneparameters
#SPV=n Setspeakerphonevolume
#SPZ=n SetmicrophoneAGC
#VM=n Setmicrophonestatus
Section Four - S Registers
Your modem has 39 registers, designated S0 through
S27,S36-S38,S46,S48-S50,S63,S82,S86,andS98.Table
4-1 shows the registers, their functions, and their default
values. Some registers can have their values changed by
commands.Ifyouuseacommandtochangearegistervalue,
thecommandremainsineffectuntilyouturnofforresetyour
modem.Yourmodemthenrevertstotheoperatingcharacter-
isticsspecified inits non-volatilememory. RefertoSection
3 for information on how to use the AT commands to
manipulate the S registers.
Table 4-1 S - Registers
Register Function Range/units Default
S0 Auto-answerRing 0-255/rings 0
S1 Ringcounter 0-255/rings 0
S2 Escapecodecharacter 0-127/ASCII 43
S3 Carriagereturncharacter 0-127/ASCII 13
S4 Linefeedcharacter 0-127/ASCII 10
S5 Backspacecharacter 0-32, 127/ASCII 8
S6 Dialtone waittime 0-255/seconds 2
S7 Remotecarrierwaittime 1-255/seconds 40
S8 Commapausetime 0-255/seconds 2
S9 Carrierdetecttime 0-255/0.1second 6
S10 Carrierlosstime 0-255/0.1second 14
S11 Touch-tonedialingspeed 50-255/0.001 second75
S12 Esc.characterdetecttime 0-255/0.02second 40

13
S13 Reserved
S14 Echo,response,dialing, Bit-mapped
originate/answer
S15 Reserved
S16 Modemtestoptions Bit-mapped
S17 Reserved
S18 Modemtesttimer 0-255/seconds 0
S19 Reserved
S20 Reserved
S21 Autoretrain,RTS/CTS, Bit-mapped
DTR, DCD, DSR
S22 Speakerandresponse Bit-mapped
S23 RDL, DTE data rate, Bit-mapped
parity,andguardtone
S24 Reserved
S25 DTRdelay 0-100/seconds 5
S26 RTS/CTSdelayinterval 0-255/0.01second 1
S27 Asyncoperation,Line Bit-mapped
type
S36 NegotiationFallback 0-7 7
S37 Maximumlinespeed 0-11 0
S38 Forcedhangupdelay 0-255 20
S46 Selectdatacompression 136, 138 138
S48 Featurenegotiation 0, 7, 128 7
S49 Bufferlowerlimit 0-255 10
S50 Bufferupperlimit 0-255 200
S63 LeasedLinecarrierlevel 0-15 0
S82 BreakSignaling 3, 7, 128 128
S86 Connection failure code 0, 4, 9,10, 12-14
S98 Speakerphonesquelchtimer 0-255/.001second 10
Section Five - Result Codes
BASIC RESPONSE CODES
OK 0 CONNECT 1
RING 2 NOCARRIER 3
ERROR 4 CONNECT 1200 5
NODIALTONE 6 BUSY 7
NOANSWER 8 CONNECT 2400 10
CONNECT 4800 11 CONNECT 7200 24
CONNECT 9600 12 CONNECT 12000 25
CONNECT 14400 13 CONNECT 19200 14
CONNECT 38400 28 CONNECT 57600 29
CONNECT 1200/75 22 CONNECT 75/1200 23
EXTENDED RESPONSE CODES

14
CONNECT 0300/REL 16 CONNECT 1200/REL 17
CONNECT 2400/REL 18 CONNECT 4800/REL 19
CONNECT 9600/REL 20 CONNECT 19200/REL 21
CONNECT 38400/REL 26 CONNECT 57600/REL 27
NEGOTIATION PROGRESS CODES
CARRIER 300 40 CARRIER 1200/75 44
CARRIER 75/1200 45 CARRIER 1200 46
CARRIER 2400 47 CARRIER 4800 48
CARRIER 7200 49 CARRIER 9600 50
CARRIER 12000 51 CARRIER 14400 52
COMPRESSION:CLASS5 66
COMPRESSION:V.42BIS 67
COMPRESSION:NONE 69
PROTOCOL:NONE 70
PROTOCOL:LAP-M 77
PROTOCOL:ALT 80
Section Six - Troubleshooting
Thissectiondescribes some ofthecommon problems
youmayencounterwhile using yourmodem.Ifyou can not
resolveyourdifficultyafterreadingthischapter,contactyour
dealer or vendor for assistance.
Modem does not respond to commands.
1. Make sure the communication software is configured to
“talk”tothemodemonthecorrectCOMportandIRQsetting
(same COM port and IRQ setting as the modem). Your
communication software must know which address your
modem is using in the system in order to pass data to it.
Similarly,IRQsettingsmustbesetcorrectlytoreceivedata
fromthemodem.
2. Make sure that your modem is initialized correctly. Your
modem may have been initialized to not display responses.
You may factory-reset the modem by issuing AT&F and
press ENTER.The factory default allows the modem to
displayresponsesafteracommandhasbeenexecuted.
3. Make sure the baud rate setting in your software is set to
57600,38400,19200,14400,9600,2400,1200,or300bps.
An incorrect baud rate prevents the modem from operating
properly.
4. Make sure that the modem is not conflicting with another
COMport orIRQ in anon-PnP system.
Modem does not dial.

15
1. Makesurethemodemisconnectedtoaworkingphoneline.
Replacethemodemwithaworkingphonetoensurethatthe
phonelineisworking.
2. Make sure the phone line is connected to the jack marked
“LINE.” Incorrect connection prevents the modem from
operatingproperly.RefertoSection2.2formodemconnec-
tioninstructions.
Modem dials but does not connect.
1. MakesuretheIRQsettingisidenticalonboththemodemand
thesoftwareinanon-Pnpsystem.Modemandsoftwaremust
beconfiguredidentically.
2. Make sure the phone line is working properly. Replace the
modemwitharegularphoneanddialthenumber.Iftheline
sounds noisy, you may have difficulty connecting to the
remotedevice.
Modem makes a connection but no data appears
on your screen.
1. Theremotesystemmaybewaitingtoreceiveyourdatabefore
itbegins.Try pressingtheENTERkeya fewtimes.
2. Make sure the correct data format (data bits, stop bits, and
parity bits) and flow control (RTS/CTS) method are being
used.
3. Makesurethecorrectterminalemulationmodeisbeingused
(seecommunicationsoftwaremanual).
4. MakesurethemodemisnotsharinganIRQorCOMportwith
anotherdeviceinanon-PnPsystem.
High pitch tone is heard whenever you answer the
phone.
1. MakesureAuto-Answeristurnedoff.Yourmodemisfactory
configuredtoNOTauto-answer.IssueAT&Ftofactoryreset
yourmodem.
Modem experiences errors while communicating
with a remote modem.
1. MakesuretheDTEspeedisthesameasthemodemconnec-
tionspeedwheninDirectMode(\N1commandineffect).
2. Makesuretheremotesystemandyourmodemusethesame
communication parameters (i.e., baud rate, data bit length,
parity,andstopbit).
3. Make sure RTS/CTS hardware flow control is enabled and
XON/XOFFsoftwareflowcontrolisdisabledinthecommu-
nicationsoftware.
4. Make sure the data speed is not faster than your computer's

16
capability.MostIBMcompatiblesarecapableof19,200bps
underDOSandWindows.Operatingathigherspeedsunder
Windowsrequires afaster CPU (386/486or better).
Modem experiences bursts of errors or suddenly
disconnects while communicating with a remote
modem.
1. Make sure Call Waiting is turned off.
2. Makesurethephonelinedoesnotexhibitexcessnoise.
Modem exhibits poor voice record or playback.
1. Make sure the correct modem type is selected in the Voice/
FAX software. Use “Sierra” or similar selection. Do not
select“RockwellorRockwellICS”configuration.
Section Seven - Specifications
CCITT/BellStd. V.42bis, V.42, V.32bis, V.32, V.29,
V.27ter, V.22bis, V.22, V.21, V.17,
Bell212/103
MNPprotocols: MNP 5, 4, 3, 2
HostInterface: 16-bit PC bus
COMports: 1, 2, 3, 4
IRQlines: 3, 4, 5, 7, 9, 10, 11, 12
FAXGroup: GroupIIISend/ReceiveStandard
FAXCommandset: EIA/TIA-PN2388ServiceClass2
VoiceCommandset: Sierra
EscapeDetection: TIESEscapeSequence
Transmitlevel: -11 dBm +/- 1 dBm
ReceiverSensitivity: -43 dBm
UART: 16550compatible
Dataformat: 300-57600 bps
Power: 0.75 W
Temperature: 0 to 55 degrees C (Operating); -20 to 80
degreesC(Non-operating)
Speakerphone: Full-duplexwithDSPechocancellation
Plugand Play ISAspec.V1.0a
Section Eight - Support and Service
In the unlikely event you experience difficulty in the use of this
product,wesuggestyou:(1)consulttheTroubleshootingsection
ofthisguideand(2)consultwithyourdealer.Toobtainservicefor
thisproduct,followtheReturnMerchandiseAuthorizationProce-
dure as outlined in the Warranty card.

17
Section Nine - FCC , DOC & Other Notices
9.1 FCC Compliance
ThisequipmentcomplieswithPart68oftheFCCRules.Onthis
equipmentisalabelthatcontains,amongotherinformation,the
FCCregistrationnumberandRingerEquivalenceNumber(REN)
forthisequipment.Youmust,uponrequest,providethisinforma-
tiontoyourtelephonecompany.
If your telephone equipment causes harm to the telephone net-
work, the Telephone Company may discontinue your service
temporarily. If possible, they will notify in advance. But, if
advance notice isn’t practical, you will be notified as soon as
possible. You will be informed of your right to file a complaint
withtheFCC.
Your telephone company may make changes in its facilities,
equipment, operations, or procedures that could affect proper
operation of your equipment. If they do, you will be notified in
advance to give you an opportunity to maintain uninterrupted
telephoneservice.
TheFCCprohibitsthisequipmenttobeconnectedtopartylinesor
coin-telephoneservice.
In the event that this equipment should fail to operate properly,
disconnecttheequipmentfromthephonelinetodetermineifitis
causingtheproblem.Iftheproblemiswiththeequipment,discon-
tinueuse and contactyourdealer or vendor.
TheFCCalsorequiresthe transmitter ofa FAX transmissionbe
properlyidentified(perFCCRulesPart68,Sec.68.381(c)(3)).
9.2 FCC Class B Statement
Thisequipmenthasbeentestedandfoundtocomplywiththelimits
foraClassBdigitaldevice,pursuanttoPart15oftheFCCRules.
Theselimitsaredesignedtoprovidereasonableprotectionagainst
harmful interference in a residential installation. This equipment
generates,usesandcanradiateradiofrequencyenergy,andifnot
installedandused in accordancewith theinstructions, maycause
harmfulinterferencetoradiocommunications.However,thereisno
guaranteethatinterferencewillnotoccurinaparticularinstallation.
If this equipment does cause harmful interference to radio or
televisionreception,whichcanbedeterminedbyturningtheequip-
ment off and on, the user is encouraged to try to correct the
interferencebyoneormoreofthefollowingmeasures:
• Reorientorrelocatethereceivingantenna

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• Increasetheseparationbetweentheequipmentandthereceiver
• Connecttheequipmentintoanoutletonacircuitdifferentfrom
thattowhichthereceiverisconnected
• Consultthedealeroranexperiencedradio/TVtechnicianfor
help
Notice: 1)Shieldedcables,ifany,mustbeusedinordertocomply
with the emission limits. 2) Any change or modification not
expresslyapprovedbytheGranteeoftheequipmentauthorization
couldvoidtheuser’sauthoritytooperatetheequipment.
9.3 DOC Compliance Information
NOTICE:TheCanadianDepartmentofCommunicationslabel
identifies certified equipment. This certification means that the
equipmentmeetscertaintelecommunicationsnetworkprotective,
operational and safety requirements. The Department does not
guaranteetheequipmentwilloperatetotheuser’ssatisfaction.
Beforeinstallingthisequipment,usersensurethatitispermissible
tobeconnected tothe facilitiesof thelocal telecommunications
company.Theequipmentmustalsobeinstalledusinganaccept-
able method of connection. The customer should be aware that
compliancewiththeaboveconditionsmaynotpreventdegrada-
tionofserviceinsomesituations.
Repairstocertifiedequipmentshouldbemadebyanauthorized
Canadian maintenance facility designated by the supplier. Any
repairs or alterations made by the user to this equipment, or
equipmentmalfunctions,maygivethetelecommunicationscom-
panycausetorequesttheusertodisconnecttheequipment.
Users should ensure for their own protection that the electrical
ground connections of the power utility, telephone lines and
internal metallic water pipe system, if present, are connected
together.This precautionmay beparticularly importantin rural
areas.
Caution: Users should not attempt to make such connections
themselves,butshouldcontacttheappropriateelectricinspection
authority,orelectrician,asappropriate.
NOTICE: The Load Number (LN) assigned to each terminal
devicedenotesthepercentageofthetotalloadtobeconnectedto
atelephoneloopwhichisusedbythedevice,topreventoverload-
ing.Theterminationonaloopmayconsistofanycombinationof
devicessubjectonlytotherequirement that thesumofthe Load
Numbersofallthedevicesdoesnotexceed100.
9.4 Disclaimer, Copyright, And Other Notices

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Theinformationcontainedinthismanualhasbeenvalidatedatthe
timeofthismanual'sproduction.Themanufacturerreservesthe
right to make any changes and improvements in the product
describedin thismanual atany timeand withoutnotice. Conse-
quently the manufacturer assumes no liability for damages in-
curreddirectlyorindirectlyfromerrors,omissionsordiscrepan-
ciesbetweentheproductandthemanual.
All registered trademarks are the property of their respective
owners.
Copyright © 1995 All rights reserved. No reproduction of this
documentinanyformispermittedwithoutpriorwrittenauthori-
zationfromthemanufacturer.
FirstEdition-MAN030Rev1.1 GZ/DR- Version 1.1