High Performance
V.32bis/V.42bis
14,400 BPS Internal
FAX/Voice/Data
Modem
Featuring Advanced
Speakerphone Functions
User's Manual
Contents
Section One Introduction ........................... 1
Section Two Installation ............................. 1
Section Three AT Command Set .................. 6
Section Four S Register Summary ........... 12
Section Five Result Codes......................... 13
Section Six
Troubleshooting ................... 14
Section Seven Specifications ....................... 16
Section Eight Support And Service ........... 17
Section Nine FCC, DOC, Copyright And
Other Notices ....................... 17
Part #MAN0017 Rev 1.1
CL-MD1414ECT-SP
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3. If you have one or more serial ports on the back of your
computer,reconfigureyourmodem.Yourmodemisshipped
set to COM1 on IRQ4. Reconfigure the modem to either
COM3/IRQ5 or COM4/IRQ2 (refer to Table 2-1 in Sec-
tion 2.4).
4. Removeyourcomputer'scover
Figure 2-2
Expansion
(refertoyourcomputer'sowner
manual).
Slots
5. Select any available half-card
slot, and then remove the slot
cover (refer to Figure 2-2).
6. Carefullyslidetheinternalmo-
demintotheslotyouhavecho-
sen,applyingevenpressureun-
til the modem is completely
seated in the slot.
7. Fasten the retaining bracket
withthescrewfromtheslotcover. Makesurethemodemis
properly aligned. Store the slot cover for future use.
8. Replace the computer cover and plug in your computer.
9. Connect the telephone cable from the modem (“LINE”
connector)tothetelephonewalljack.
10. Optionally connect: 1) your telephone to the modem's
“PHONE”connector,2)aspeakertothemodem's“SPKR”
connector, and 3) a microphone to the modem's “MIC”
connector.Notethatthedistancebetweenthemicrophone
and the speaker must be greater than twelve (12) inches
to prevent unpleasant speaker feedback.
11. Turn your computer on. Your modem is now installed.
2.3 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.
If you are using Microsoft Windows 3.x and have
changedthemodem'soperatingsettingfromthedefaultCOM1/
IRQ4toCOM3/IRQ5orCOM4/IRQ2toavoidaconflict,you
must use Windows' Control Panel (in the “Main” Group
withinProgramManager)toconfigureWindowstorecognize
the new settings before installing any software. In Control
Panel, double-click on Ports. Click once on the icon for the
Com port you have set your modem to. Click the Settings
button. Click the Advanced button. The Base I/O Port
2
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AddressshouldalreadybesetbyWindowstotheCOMport
address used by the modem (refer to Table 2-1). Change the
Interrupt Request Line (IRQ) to match the IRQ on the
modem. If you have set the modem to COM4/IRQ2, do not
select IRQ2. YouwillneedtosettheIRQinControlPanelto
IRQ9forWindowstorecognizethemodem.(Inanoperating
system designed for 286 or better machines, IRQ 9 is
equivalent (redirected) to IRQ2.)
A modem setting which skips one or more COM port
assignments requires special attention in the Windows 3.x
Control Panel. For example, if your computer is equipped
with two serial ports (COM1 and COM2) and have set the
modem to COM4 instead of COM3, the Control Panel
settings for COM4 may say Default. In this case, Windows
3.x will operate the modem as the third serial device and
recognize it as “COM3” (This unusual COM port reassign-
ment does not occur in future releases of Windows). The
correct COM4 address (2E8) has been placed into the
ControlPanelCOM3position.ConfiguretheCOM3entryin
ControlPanelbychangingtheIRQboxtomatchtheIRQthat
has been set on the modem. (When running any Windows
3.x-based communication or fax programs, select COM3 as
the COM port for the modem.)
Afterthesesettingsaremade,clickOK.ClickRestart
Now. Windows can now recognize your modem.
Note: Since the “COM3” substitution for your
COM4 modem only occurs under Windows 3.x,
your DOS communication and fax programs will
still recognize the modem configuration as COM4.
We suggest the following communication parameters
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
withthecommandsetusedbyIntelmodems.Selectan“Intel
144I Faxmodem” type in your data communications soft-
ware, select a “Generic Class 1” type in your fax software
and select “Cirrus Logic” in your Voice software.
3
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2.4 COM Port and Interrupt Settings
If your computer is equipped with one or more serial
ports, you will need to change the COM Port setting on the
modem (to either COM 3 or 4), or disable the PC's built-in
COM port.
An IRQ (interrupt request) is a signal generated by an
I/Odevicethatnotifiesthecomputerofincomingdata. Your
internal modem is capable of accessing IRQs 2, 3, 4, and 5.
I/O devices in your computer cannot share an IRQ with
another device at the same time. Since IRQs can not be
sharedatthesametime,COM3isgenerallyconfiguredtouse
IRQ5,andCOM4touseIRQ2.ThisavoidssharingofIRQs
with COM 1 (IRQ4) and COM 2 (IRQ3).
To change the default COM Port or IRQ settings from
COM1/IRQ4toanothersetting, locatetheSwitchBlock on
your internal modem (Figure 2-3). Refer to Table 2-1 to
configure the Switch Block to the COM Port and IRQ
Figure 2-3 Switch Block SW-1 Location
SW-1
Table 2-1 Switch Block Settings
COM Port
IRQ
SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6
1 (3F8)
default
4
ON
ON
OFF
OFF
ON
OFF
2 (2F8)
3 (3E8)
3
5
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
4*
ON
OFF
OFF
OFF
4 (2E8)
2(9)**
3*
OFF
OFF
OFF
OFF
OFF
*
Use these IRQs only if your software can not address IRQ5 or IRQ2
** When using Windows with the modem set for IRQ2, select IRQ9 in
ControlPanel
4
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combination needed for your application. Any time the
COM or IRQ setting for the modem is changed, the
settings in the software must be changed to match.
2.5 Using Fax, Voice, and Speakerphone
Capabilities of the Modem
Your modem has built-in advanced FAX, Voice, and
Speakerphone functions. These functions are accessed
throughsoftware. PleaseconsultyourFAX/Voice/Speaker-
phone software manual about procedures on using these
functions.Notethatthemodem'sFAX/Voice/Speakerphone
commands are used by the software to implement these
functions and are not designed to be used as standalone AT
commands.
Voice functions include recording and playback of
voiceprompts(files). Torecordorplaybackvoicewithyour
modem, attach a telephone to the RJ-11 jack marked
“PHONE”onthebackofthemodem.Followspecificinstruc-
tionsintheFAX/Voice/Speakerphonesoftwareonrecording
and playback of voice prompts.
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.”
MakesurethattheCOMPortandIRQsettingsofthemodem
match the software. Type AT on your terminal screen and
press ENTER. You may see “AATT” or nothing on the
screen.Ineithercase,themodemshouldrespondwithanOK
or 0. If it does not, please refer to Section 2.4 for information
on COM Ports and IRQ’s or Section 6 for troubleshooting
information.
2.7 Using Your Modem
The communication software included with your 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
software manual first, however, as the software may already
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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. Read Section 3 ONLY if you are interested in
accessingthemodemmanually,andnotthroughtheincluded
software.Section4and5containreferencematerial,andcan
be skipped. If you have difficulties getting your modem to
work, read Section 6, Troubleshooting to find answers to
commonly 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-
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
All commands sent to the modem must begin withAT
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.
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3.3 Basic AT Commands
Inthefollowinglistings,alldefaultsettingsareprinted
in bold text.
Command
Function
A
Manuallyanswerincomingcall
A/
Repeatlastcommandexecuted.Donotprecede
A/ with AT or follow with ENTER
AT
Appearsatthebeginningofeverycommand
line
B_
B0
CCITT mode
B1
Bell mode
D_
0 - 9, A-D, # and *
pulsedialing
originatecallsinanswermode
touch-tonedialing
wait for second dial tone
pause
P
R
T
W
,
@
!
waitforfivesecondsofsilence
flash
;
return to Command Mode after dialing
DS=n
E_
Dialoneofthefourtelephonenumbers(n=0-
3)storedinthemodem’snon-volatilememory
E0
Commandsarenotechoed
E1
Commands are echoed
+++
H_
TIES Escape Characters - Switch from Data
ModetoCommandMode
H0
H1
Forcemodemon-hook(hangup)
Forcemodemoff-hook(makebusy)
I_
I0
I1
I2
I3
I4
Displayproduct-identificationcode
Factory ROM ID
Internalmemorytest
DeviceID
Internal ID
L_
L0
L1
L2
L3
Lowspeakervolume
Lowspeakervolume
Medium speaker volume
Highspeakervolume
M_
M0
Internalspeakeroff
M1
Internal speaker on until carrier detected
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M2
M3
Internalspeakeralwayson
Internal speaker on until carrier detected and
offwhiledialing
N_
N0
Connect only at DTE rate
N1
Automatic rate negotiation
O_
O0
O1
Return to Data Mode
ReturntoDataModeandinitiateanequalizer
retrain
P
Set Pulse dial as default
Q_
Q0
Modem sends responses
Q1
Modemdoesnotsendresponses
Sr?
Sr=n
T
r=0-30 Read and display value in register r
Set register r to value n (r=0-30; n=0-255)
Set Tone Dial as default
V_
V0
Numericresponses
V1
Word responses
X_
X0
HayesSmartmodem300compatible
responses/blinddialing
X1
Same as X0 plus all CONNECT responses/
blinddialing
X2
X3
Same as X1 plus dial tone detection
Same as X1 plus busy signal detection/blind
dialing
X4
Allresponsesanddialtoneandbusysignal
detection
Y_
Z_
Y0
Modem does not send or respond to break
signals
Modem sends break signal for four seconds
beforedisconnecting
Y1
Z0
Reset and retrieve active configuration
profile 0
Z1
Resetandretrieveactiveconfiguration
profile1
3.4 Extended AT Commands
&C_
&C0 Force Carrier Detect Signal High (ON)
&C1 TurnonCarrierDetectsignalwhenremote
carrier signal is present
&D_
&D0 Modem ignores the Data Terminal Ready
signal
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&D1 ModemreturnstoCommandModeafter DTR
toggle
&D2 Modemhangsup,returnstotheCommand
Mode after DTR toggle
&D3 ResetsmodemafterDTRtoggle
&F_
&G_
&F
Recallfactorydefaultconfiguration
&G0 Guard tone disabled
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&M_
&P_
&M0 Asynchronousoperation
&P0 United States setting for off-hook (make) -
to-on-hook (break) ratio
&P1 UKandHongKongoff-hook(make)-to-on-
hook (break) ratio
&S_
&S0 Force DSR Signal High (ON)
&S1 DSR is off in command mode, on in on-line
mode
&T_
&T0 Ends test in progress
&T1 PerformLocalAnalogLoopbackTest
&T3 Perform Local Digital Loopback Test
&T4 Grant Remote Digital Loopback Test
requestbyremotemodem
&T5 DenyRemoteDigitalLoopbackTest request
byremotemodem
&T6 Perform a Remote Digital Loopback Test
&T7 PerformaRemoteDigitalLoopbackTestand
Self-Test
&T8 Perform Local Analog Loopback Test and
Self-Test
&U_
&V_
&W_
&U0 Enable Trellis Coding @ V.32
&U1 Disable Trellis Coding @ V.32
&V0 DisplaysActiveandStoredProfile0
&V1 DisplaysActiveandStoredProfile1
&W0 StorestheactiveprofileasConfiguration
Profile0
&W1 StorestheactiveprofileasConfiguration
Profile1
&Y_
&Y0 ConfigurationProfile0activeuponPower
on or reset
&Y1 Configuration Profile 1 active upon Poweron
orreset
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&Zn=x n=0-3 Storetelephonenumberxintonon-volatile
RAM
%E_
%G_
%E0 V.22bisauto-retraindisabled
%E1 V.22bis auto-retrain enabled
%G0 EnableAutoFallForward/Back
%G1 DisableAutoFallForward/Back
3.5 MNP/V.42/V.42bis Commands
%An
%C_
\A_
n=0- Setauto-reliablefallbackcharacterton(where
127 n = 0 to 127,ASCII). Requires the \C2setting
%C0 Disable MNP Class 5 data compression
%C1 Enable MNP Class 5 data compression
\A0
\A1
\A2
\A3
64-character maximum MNP block size
128-character maximum MNP block size
192-character maximum MNP block size
256-character maximum MNP block size
\Bn
n=1-9 Send a 1/10 second line break to the modem,
where n = 1 to 9. At normal connect, the
default is 3
\C_
\C0
\C1
\C2
Do not buffer data during LAPM/MNP
handshaking
Buffer all data for 4 seconds, until receiving
200 characters or until a packet is detected
Do not buffer data; switch to normal mode
whenfallbackcharacterisdetected
\G_
\J_
\G0
\G1
Disable DCE flow control
EnableDCEflowcontrol
J0
Disable serial port data rate adjustment
(keep high data rate between DTE and
modem, regardless of modem-to-modem
data rate)
J1
Enable serial port data rate adjustment so
serialdatarateautomaticallyadjusts tomatch
themodem-to-modemdatarate
\Kn
n=0-5 Set break control, where n= 0 to 5. Default
is 5
\N_
\N0
\N1
\N2
\N3
Normaldata-linkonly
Directdata-linkonly
MNP data link only
V.42/MNP/Normaldatalink
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\N4
V.42 data link only
\O
Initiate reliable link during a normal link
\Q_
\Q0
\Q1
\Q2
Turn off flow control
XON/XOFFsoftwareflowcontrol
CTSsignalunidirectionalhardwareflow
control
\Q3
RTS/CTSsignalbi-directionalhardware
flow control
\Tn
Inactivity timer, where n = 0 to 90 minutes.
Default is 0
\U
Accept reliable link during a normal link
\V_
\V0
\V1
\V2
Donotsendextendedresponses
Sendextendedresponseset1
Send extended response set 2
\X_
\X0
ProcessXON/XOFFbutdon’tpassthrough
\X1
ProcessXON/XOFFandpassthrough
\Y
\Z
Switch to reliable link from normal link
Endthereliableconnectionandswitchto
normaloperation
-J
-J0
Disableerrorcontroldetectionphase
-J1
Enable error control detection phase
"H
"H0 V.42bisdatacompressiondisabled
"H1 Can send but not receive V.42bis data
compression
"H2 Can receive but not send V.42bis data
compression
"H3 Bidirectional V.42bis data
compressionenabled
"On
n=6- Set maximum V.42bis data block size to n.
250
Default is 16
3.6 Fax Class 1 Commands
+FAA=n
Data/Fax auto answer enable. Default is 0
+FAE=n
Data/Fax auto answer enable. Default is 0
Returnscurrentoperatingmode
Setsoperatingmode
Returns availablesupportedmodes
Identifymodemmanufacturer
Identifyproductmodel
+FCLASS?
+FCLASS=n
+FCLASS=?
+FMFR?
+FMDL?
+FPREV?
Identifyproductrevision
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+FRH=<mod> Receive HDLC data
+FRHM=<mod>Receivedata
+FRS=<time> Waitforsilence
+FRTn
Faxreceivetestcommand
+FTH=<mod> Transmit HDLC data
+FTM=<mod> Transmit data
+FTS=<time> Stoptransmissionandpause
+FTTn
Faxtransmittestcommand
3.7 Voice Mode Commands
#VBP
Generatebeeptone
#VCL=n
#VCSD=n
#VGPS=n
#VGPC=n
#VIN
#VIP=n
#VLN=n
#VOUT=n
#VPH
Voicemodeselection. Defaultis0
Commandmodesilencedetection.Defaultis0
Input pin function selection. Default is 0
Input pin character selection. Default is 0
Read general purpose input pins
Initialize parameter. Default is 0
Relay/speaker control. Default is 0
Write to output pins. Default is 0
Telephoneemulationmode.
#VPL=n
#VPY
Play level. Default is 127
Playmode
#VRD
Recordmode
#VRL=n
#VSL=n
Recording level. Default is 127
Recordingsilencethresholdlevel.Default
is 127
#VSM=n
#VSQT=n
#VSR=n
Sampling mode. Default is CL1
Record mode “q” silence time. Default is 60
Sampling rate. Default is 9600
Record mode “s” silence time. Default is 60
#VSST=n
Setion Four - S Registers
Your modem has 35 registers, designated S0 through
S30, S37, S90, S108, and S109. Table 4-1 shows the regis-
ters, their functions, and their default values. Some registers
can have their values changed by commands. If you use a
command to change a register value, the command remains
ineffectuntilyouturnofforresetyourmodem.Yourmodem
then reverts to the operating characteristics specified in its
non-volatile memory. Refer to Section 3 for information on
how to use the AT commands to manipulate the S registers.
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Table 4-1 S - Registers
Function Range/units Default
Register
S0 Auto-answerRing
S1 Ringcounter
0-255/rings
0-255/rings
0
0
S2 Escapecodecharacter
S3 Carriage return character
S4 Linefeedcharacter
S5 Backspacecharacter
S6 Dial tone wait time
S7 Remote carrier wait time
S8 Comma pause time
S9 Carrierdetecttime
S10 Carrier loss time
S11 Touch-tonedialingspeed
S12 Esc.characterdetecttime
S13 Reserved
0-127/ASCII
0-127/ASCII
0-127/ASCII
0-32, 127/ASCII
0-255/seconds
1-255/seconds
0-255/seconds
0-255/0.1second
0-255/0.1second
43
13
10
8
2
30
2
6
14
50-255/0.001 second 70
0-255/0.02second
50
S14 Echo,response,dialing,
originate/answer
Bit-mapped
S15 Reserved
S16 Modemtestoptions
S17 Reserved
Bit-mapped
S18 Modemtesttimer
S19 Reserved
0-255/seconds
0
S20 Reserved
S21 DTR, DCD, DSR, and
LongSpaceDisconnect
S22 Speakerandresponse
S23 RDL, DTE data rate,
parity,andguardtone
Bit-mapped
Bit-mapped
Bit-mapped
S24 Reserved
S25 DTR delay
0-100/seconds
0-255/0.01second
Bit-mapped
5
1
S26 RTS/CTS delay interval
S27 Asyncoperation,CCITT/
Bellmode
S28 Reserved
S29 Reserved
S30 Sleepmodetime
S37 Maximumlinespeed
S90 Disconnecttimer
S108 Retrainoptions
S109 LineSpeedpermitted
0-90/seconds
0-11
0-255/seconds
0-3
10
0
0
2
62
2-62
Section Five - Result Codes
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BASIC RESPONSE CODES
OK
0
CONNECT
1
RING
ERROR
NO DIALTONE
NOANSWER
CONNECT 4800
DATA
2
4
6
8
11
13
15
NO CARRIER
CONNECT 1200
BUSY
CONNECT 2400
CONNECT 7200
CONNECT 9600
3
5
7
10
12
14
FAX
CONNECT 12000 16
+FCERROR +F4
CONNECT 14400 17
MODIFIED RESPONSE CODES (\V1)
CONNECT 300/REL
22
CONNECT 1200/REL 24
CONNECT 4800/REL 26
CONNECT 9600/REL 28
CONNECT 14400/REL 30
CONNECT 2400/REL 25
CONNECT 7200/REL 27
CONNECT 12000/REL 29
EXTENDED RESPONSE CODES (\V2)
CONNECT300/REL-MNP
32
34
35
36
37
38
39
40
42
44
45
46
47
48
49
50
54
55
56
57
58
59
60
64
65
66
67
CONNECT 1200/REL-MNP
CONNECT 2400/REL-MNP
CONNECT 4800/REL-MNP
CONNECT 7200/REL-MNP
CONNECT 9600/REL-MNP
CONNECT 12000/REL-MNP
CONNECT 14400/REL-MNP
CONNECT 300/REL-MNP 5
CONNECT 1200/REL-MNP 5
CONNECT 2400/REL-MNP 5
CONNECT 4800/REL-MNP 5
CONNECT 7200/REL-MNP 5
CONNECT 9600/REL-MNP 5
CONNECT 12000/REL-MNP 5
CONNECT 14400/REL-MNP 5
CONNECT1200/REL-LAPM
CONNECT2400/REL-LAPM
CONNECT4800/REL-LAPM
CONNECT7200/REL-LAPM
CONNECT9600/REL-LAPM
CONNECT12000/REL-LAPM
CONNECT14400/REL-LAPM
CONNECT1200/REL-LAPMV.42BIS
CONNECT2400/REL-LAPMV.42BIS
CONNECT4800/REL-LAPMV.42BIS
CONNECT7200/REL-LAPMV.42BIS
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CONNECT9600/REL-LAPMV.42BIS
CONNECT 12000/REL-LAPM V.42BIS
CONNECT 14400/REL-LAPM V.42BIS
68
69
70
Section Six - Troubleshooting
This section describes some of the common problems
you may encounter while using your modem. If you can not
resolveyourdifficultyafterreadingthischapter,contactyour
dealer or vendor for assistance.
Modem does not respond to commands.
1. Make sure the modem is not configured with a conflicting
COM port and IRQ setting (see Section 2.4). Your modem
cannotbeconfiguredasCOM1(default)ifanotherdevicein
your system is also configured as COM1. Similarly, IRQ
settingsmaynotoverlap.
2. 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, IRQ settings must be set correctly to receive data
fromthemodem.
3. 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.
4. 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.
Modem does not dial.
1. Makesurethemodemisconnectedtoaworkingphoneline.
Replace the modem with a working phone to ensure that the
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. Make sure the IRQ setting is identical on both the modem
ANDthesoftware.Modemandsoftwaremustbeconfigured
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identically.
2. Make sure the phone line is working properly. Replace the
modem with a regular phone and dial the number. If the line
sounds noisy, you may have difficulty connecting to the
remotedevice.
Modem makes a connection but no data appears
on your screen.
1. Theremotesystemmaybewaitingtoreceiveyourdatabefore
it begins. Try pressing the ENTER key a few times.
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
anotherdevice(seeSection2.4).
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-
tion speed when in Direct Mode (\N1 command in effect).
2. Make sure the remote systemandyourmodemusethesame
communication parameters (i.e., baud rate, data bit length,
parity, and stop bit).
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
capability.MostIBMcompatiblesarecapableof19,200bps
underDOSandWindows.Operatingathigherspeedsunder
Windows requires a faster CPU (386/486 or better).
Modem experiences bursts of errors or suddenly
disconnects while communicating with a remote
modem.
1. Make sure Call Waiting is turned off.
2. Make sure the phone line does not exhibit excess noise.
Modem exhibits poor voice record or playback.
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1. Make sure the correct modem type is selected in the Voice/
FAXsoftware.Use“CirrusLogic”orsimilarselection.Do
notselect“RockwellorRockwellICS”configuration.
Section Seven - Specifications
CCITT/Bell Std.
V.42bis, V.42, V.32bis, V.32, V.29,
V.27ter, V.22bis, V.22, V.21, V.17,
Bell212/103
MNPprotocols:
HostInterface:
COMports:
IRQlines:
MNP 5, 4, 3, 2
8 bit PC bus
1, 2, 3, 4
2, 3, 4, 5
FAXGroup:
GroupIIISend/ReceiveStandard
FAXCommandset: EIA/TIA-578 Service Class 1
VoiceCommandset: CirrusLogic
EscapeDetection: TIESEscapeSequence
Transmitlevel:
-12 dBm +/- 1 dB
ReceiverSensitivity: -40 dBm
UART:
16550 compatible
Data format:
Power:
300-57600 bps (8N1, 7E1,7E2,7O1,7O2)
0.75 W
Temperature:
0 to 55 degrees C (Operating); -20 to 80
degreesC(Non-operating)
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.
Section Nine - FCC , DOC & Other Notices
9.1 FCC Compliance
This equipmentcomplieswithPart68oftheFCCRules. Onthis
equipment is a label that contains, among other information, 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
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possible. You will be informed of your right to file a complaint
with the FCC.
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-
tinue use and contact your dealer or vendor.
The FCC also requires the transmitter of a FAX transmission be
properly identified (per FCC Rules Part 68, Sec. 68.381 (c) (3)).
9.2 FCC Class B Statement
Thisequipmenthasbeentestedandfoundtocomplywiththelimits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Theselimitsaredesignedtoprovidereasonableprotectionagainst
harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy, and if not
installed and used in accordance with the instructions, may cause
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
• Increasetheseparationbetweentheequipmentandthereceiver
• Connecttheequipmentintoanoutletonacircuitdifferentfrom
thattowhichthereceiverisconnected
• Consultthedealeroranexperiencedradio/TVtechnicianfor
help
Notice: 1)Shieldedcables,ifany,mustbeusedinordertocomply
with the emission limits. 2) Any change or modification not
expresslyapprovedbytheGranteeoftheequipmentauthorization
could void the user’s authority to operate the equipment.
9.3 DOC Compliance Information
NOTICE:TheCanadianDepartmentofCommunicationslabel
identifies certified equipment. This certification means that the
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equipmentmeetscertaintelecommunicationsnetworkprotective,
operational and safety requirements. The Department does not
guarantee theequipmentwilloperatetotheuser’ssatisfaction.
Beforeinstallingthisequipment,usersensurethatitispermissible
to be connected to the facilities of the local telecommunications
company.Theequipmentmustalsobeinstalledusinganaccept-
able method of connection. The customer should be aware that
compliancewiththeaboveconditionsmaynotpreventdegrada-
tionofserviceinsomesituations.
Repairs to certified equipment should be made by an authorized
Canadian maintenance facility designated by the supplier. Any
repairs or alterations made by the user to this equipment, or
equipmentmalfunctions,maygivethetelecommunicationscom-
pany cause to request the user to disconnect the equipment.
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 precaution may be particularly important in 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
devices subject only to the requirement that the sum of the Load
Numbers of all the devices does not exceed 100.
9.4 Disclaimer, Copyright, And Other Notices
Theinformationcontainedinthismanualhasbeenvalidatedatthe
time of this manual's production. The manufacturer reserves the
right to make any changes and improvements in the product
described in this manual at any time and without notice. Conse-
quently the manufacturer assumes no liability for damages in-
curreddirectlyorindirectlyfromerrors,omissionsordiscrepan-
cies between the product and the manual.
All registered trademarks are the property of their respective
owners.
Copyright © 1995 All rights reserved. No reproduction of this
documentinanyformispermittedwithoutpriorwrittenauthori-
zationfromthemanufacturer.
FirstEdition
GZ/DR - Version 1.0
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Section One - Introduction
The 14.4 Kbps Series FAX/Voice/Data Modem con-
nect your computer to all popular high speed modems
available today. This manual describes the hardware instal-
lation procedures for your new modem product. Additional
information on AT commands and S-registers are provided
so that your system can be customized for a particular
operatingenvironment.
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
Before you begin your installation, be certain that you
have all the items listed below. This package contains:
• A modem
• A telephone cable
• User's manual
• 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 before installation. Discharge
any static electricity from your body by touching any metal
surface.
1. Turn off and unplug your computer from the AC outlet.
2. Determine how many serial ports are built into your com-
puter(examinethebackofyourcomputer). RefertoFigure
2-1 to identify common serialports.
Figure 2-1 Common Serial Ports
male connector
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3. If you have one or more serial ports on the back of your
computer,reconfigureyourmodem.Yourmodemisshipped
set to COM1 on IRQ4. Reconfigure the modem to either
COM3/IRQ5 or COM4/IRQ2 (refer to Table 2-1 in Sec-
tion 2.4).
4. Removeyourcomputer'scover
Figure 2-2
Expansion
(refertoyourcomputer'sowner
manual).
Slots
5. Select any available half-card
slot, and then remove the slot
cover (refer to Figure 2-2).
6. Carefullyslidetheinternalmo-
demintotheslotyouhavecho-
sen,applyingevenpressureun-
til the modem is completely
seated in the slot.
7. Fasten the retaining bracket
withthescrewfromtheslotcover. Makesurethemodemis
properly aligned. Store the slot cover for future use.
8. Replace the computer cover and plug in your computer.
9. Connect the telephone cable from the modem (“LINE”
connector)tothetelephonewalljack.
10. Optionally connect: 1) your telephone to the modem's
“PHONE”connector,2)aspeakertothemodem's“SPKR”
connector, and 3) a microphone to the modem's “MIC”
connector.Notethatthedistancebetweenthemicrophone
and the speaker must be greater than twelve (12) inches
to prevent unpleasant speaker feedback.
11. Turn your computer on. Your modem is now installed.
2.3 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.
If you are using Microsoft Windows 3.x and have
changedthemodem'soperatingsettingfromthedefaultCOM1/
IRQ4toCOM3/IRQ5orCOM4/IRQ2toavoidaconflict,you
must use Windows' Control Panel (in the “Main” Group
withinProgramManager)toconfigureWindowstorecognize
the new settings before installing any software. In Control
Panel, double-click on Ports. Click once on the icon for the
Com port you have set your modem to. Click the Settings
button. Click the Advanced button. The Base I/O Port
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AddressshouldalreadybesetbyWindowstotheCOMport
address used by the modem (refer to Table 2-1). Change the
Interrupt Request Line (IRQ) to match the IRQ on the
modem. If you have set the modem to COM4/IRQ2, do not
select IRQ2. YouwillneedtosettheIRQinControlPanelto
IRQ9forWindowstorecognizethemodem.(Inanoperating
system designed for 286 or better machines, IRQ 9 is
equivalent (redirected) to IRQ2.)
Afterthesesettingsaremade,clickOK.ClickRestart
Now. Windows can now recognize your modem.
We suggest the following communication parameters
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
withthecommandsetusedbyIntelmodems.Selectan“Intel
144I Faxmodem” type in your data communications soft-
ware, select a “Generic Class 1” type in your fax software
and select “Cirrus Logic” in your Voice software.
2.4 COM Port and Interrupt Settings
If your computer is equipped with one or more serial
ports, you will need to change the COM Port setting on the
modem (to either COM 3 or 4), or disable the PC's built-in
COM port.
An IRQ (interrupt request) is a signal generated by an
I/Odevicethatnotifiesthecomputerofincomingdata. Your
internal modem is capable of accessing IRQs 2, 3, 4, and 5.
I/O devices in your computer cannot share an IRQ with
another device at the same time. Since IRQs can not be
sharedatthesametime,COM3isgenerallyconfiguredtouse
IRQ5,andCOM4touseIRQ2.ThisavoidssharingofIRQs
with COM 1 (IRQ4) and COM 2 (IRQ3).
To change the default COM Port or IRQ settings from
COM1/IRQ4toanothersetting, locatetheSwitchBlock on
your internal modem (Figure 2-3). Refer to Table 2-1 to
configure the Switch Block to the COM Port and IRQ
combination needed for your application. Any time the
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COM or IRQ setting for the modem is changed, the
settings in the software must be changed to match.
Figure 2-3 Switch Block SW-1 Location
SW-1
Table 2-1 Switch Block Settings
COM Port
IRQ
SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6
1 (3F8)
default
4
ON
ON
OFF
OFF
ON
OFF
2 (2F8)
3 (3E8)
3
5
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
4*
ON
OFF
OFF
OFF
4 (2E8)
2(9)**
3*
OFF
OFF
OFF
OFF
OFF
*
Use these IRQs only if your software can not address IRQ5 or IRQ2
** When using Windows with the modem set for IRQ2, select IRQ9 in
ControlPanel
2.5 Using Fax, Voice, and Speakerphone
Capabilities of the Modem
Your modem has built-in advanced FAX, Voice, and
Speakerphone functions. These functions are accessed
throughsoftware. PleaseconsultyourFAX/Voice/Speaker-
phone software manual about procedures on using these
functions.Notethatthemodem'sFAX/Voice/Speakerphone
commands are used by the software to implement these
functions and are not designed to be used as standalone AT
commands.
Voice functions include recording and playback of
voiceprompts(files). Torecordorplaybackvoicewithyour
modem, attach a telephone to the RJ-11 jack marked
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“PHONE”onthebackofthemodem.Followspecificinstruc-
tionsintheFAX/Voice/Speakerphonesoftwareonrecording
and playback of voice prompts.
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.”
MakesurethattheCOMPortandIRQsettingsofthemodem
match the software. Type AT on your terminal screen and
press ENTER. You may see “AATT” or nothing on the
screen.Ineithercase,themodemshouldrespondwithanOK
or 0. If it does not, please refer to Section 2.4 for information
on COM Ports and IRQ’s or Section 6 for troubleshooting
information.
2.7 Using Your Modem
The communication software included with your 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
software manual first, however, as the software may already
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. Read Section 3 ONLY if you are interested in
accessingthemodemmanually,andnotthroughtheincluded
software.Section4and5containreferencematerial,andcan
be skipped. If you have difficulties getting your modem to
work, read Section 6, Troubleshooting to find answers to
commonly asked questions and problems.
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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-
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
All commands sent to the modem must begin withAT
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
A
Manuallyanswerincomingcall
A/
Repeatlastcommandexecuted.Donotprecede
A/ with AT or follow with ENTER
AT
Appearsatthebeginningofeverycommand
line
B_
B0
CCITT mode
B1
Bell mode
D_
0 - 9, A-D, # and *
P
pulsedialing
R
originatecallsinanswermode
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T
W
,
touch-tonedialing
wait for second dial tone
pause
@
!
waitforfivesecondsofsilence
flash
;
return to Command Mode after dialing
DS=n
E_
Dialoneofthefourtelephonenumbers(n=0-
3)storedinthemodem’snon-volatilememory
E0
Commandsarenotechoed
E1
Commands are echoed
+++
H_
TIES Escape Characters - Switch from Data
ModetoCommandMode
H0
H1
Forcemodemon-hook(hangup)
Forcemodemoff-hook(makebusy)
I_
I0
I1
I2
I3
I4
Displayproduct-identificationcode
Factory ROM ID
Internalmemorytest
DeviceID
Internal ID
L_
L0
L1
L2
L3
Lowspeakervolume
Lowspeakervolume
Medium speaker volume
Highspeakervolume
M_
M0
M1
M2
M3
Internalspeakeroff
Internal speaker on until carrier detected
Internalspeakeralwayson
Internal speaker on until carrier detected and
offwhiledialing
N_
N0
Connect only at DTE rate
N1
Automatic rate negotiation
O_
O0
O1
Return to Data Mode
ReturntoDataModeandinitiateanequalizer
retrain
P
Set Pulse dial as default
Q_
Q0
Modem sends responses
Q1
Modemdoesnotsendresponses
Sr?
Sr=n
T
r=0-30 Read and display value in register r
Set register r to value n (r=0-30; n=0-255)
Set Tone Dial as default
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V_
V0
Numericresponses
V1
Word responses
X_
X0
HayesSmartmodem300compatible
responses/blinddialing
X1
Same as X0 plus all CONNECT responses/
blinddialing
X2
X3
Same as X1 plus dial tone detection
Same as X1 plus busy signal detection/blind
dialing
X4
Allresponsesanddialtoneandbusysignal
detection
Y_
Z_
Y0
Modem does not send or respond to break
signals
Modem sends break signal for four seconds
beforedisconnecting
Y1
Z0
Reset and retrieve active configuration
profile 0
Z1
Resetandretrieveactiveconfiguration
profile1
3.4 Extended AT Commands
&C_
&C0 Force Carrier Detect Signal High (ON)
&C1 TurnonCarrierDetectsignalwhenremote
carrier signal is present
&D_
&D0 Modem ignores the Data Terminal Ready
signal
&D1 ModemreturnstoCommandModeafter DTR
toggle
&D2 Modemhangsup,returnstotheCommand
Mode after DTR toggle
&D3 ResetsmodemafterDTRtoggle
&F_
&G_
&F
Recallfactorydefaultconfiguration
&G0 Guard tone disabled
&G1 550 Hz guard tone
&G2 1800 Hz guard tone
&M_
&P_
&M0 Asynchronousoperation
&P0 United States setting for off-hook (make) -
to-on-hook (break) ratio
&P1 UKandHongKongoff-hook(make)-to-on-
hook (break) ratio
&S_
&S0 Force DSR Signal High (ON)
&S1 DSR is off in command mode, on in on-line
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mode
&T_
&T0 Ends test in progress
&T1 PerformLocalAnalogLoopbackTest
&T3 Perform Local Digital Loopback Test
&T4 Grant Remote Digital Loopback Test
requestbyremotemodem
&T5 DenyRemoteDigitalLoopbackTest request
byremotemodem
&T6 Perform a Remote Digital Loopback Test
&T7 PerformaRemoteDigitalLoopbackTestand
Self-Test
&T8 Perform Local Analog Loopback Test and
Self-Test
&U_
&V_
&W_
&U0 Enable Trellis Coding @ V.32
&U1 Disable Trellis Coding @ V.32
&V0 DisplaysActiveandStoredProfile0
&V1 DisplaysActiveandStoredProfile1
&W0 StorestheactiveprofileasConfiguration
Profile0
&W1 StorestheactiveprofileasConfiguration
Profile1
&Y_
&Y0 ConfigurationProfile0activeuponPower
on or reset
&Y1 Configuration Profile 1 active upon Poweron
orreset
&Zn=x n=0-3 Storetelephonenumberxintonon-volatile
RAM
%E_
%G_
%E0 V.22bisauto-retraindisabled
%E1 V.22bis auto-retrain enabled
%G0 EnableAutoFallForward/Back
%G1 DisableAutoFallForward/Back
3.5 MNP/V.42/V.42bis Commands
%An
%C_
\A_
n=0- Setauto-reliablefallbackcharacterton(where
127 n = 0 to 127,ASCII). Requires the \C2setting
%C0 Disable MNP Class 5 data compression
%C1 Enable MNP Class 5 data compression
\A0
\A1
\A2
\A3
64-character maximum MNP block size
128-character maximum MNP block size
192-character maximum MNP block size
256-character maximum MNP block size
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\Bn
n=1-9 Send a 1/10 second line break to the modem,
where n = 1 to 9. At normal connect, the
default is 3
\C_
\C0
\C1
\C2
Do not buffer data during LAPM/MNP
handshaking
Buffer all data for 4 seconds, until receiving
200 characters or until a packet is detected
Do not buffer data; switch to normal mode
whenfallbackcharacterisdetected
\G_
\J_
\G0
\G1
Disable DCE flow control
EnableDCEflowcontrol
J0
Disable serial port data rate adjustment
(keep high data rate between DTE and
modem, regardless of modem-to-modem
data rate)
J1
Enable serial port data rate adjustment so
serialdatarateautomaticallyadjusts tomatch
themodem-to-modemdatarate
\Kn
n=0-5 Set break control, where n= 0 to 5. Default
is 5
\N_
\N0
\N1
\N2
\N3
\N4
Normaldata-linkonly
Directdata-linkonly
MNP data link only
V.42/MNP/Normaldatalink
V.42 data link only
\O
Initiate reliable link during a normal link
\Q_
\Q0
\Q1
\Q2
Turn off flow control
XON/XOFFsoftwareflowcontrol
CTSsignalunidirectionalhardwareflow
control
\Q3
RTS/CTSsignalbi-directionalhardware
flow control
\Tn
Inactivity timer, where n = 0 to 90 minutes.
Default is 0
\U
Accept reliable link during a normal link
\V_
\V0
\V1
\V2
Donotsendextendedresponses
Sendextendedresponseset1
Send extended response set 2
\X_
\X0
ProcessXON/XOFFbutdon’tpassthrough
\X1
ProcessXON/XOFFandpassthrough
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\Y
\Z
Switch to reliable link from normal link
Endthereliableconnectionandswitchto
normaloperation
-J
-J0
Disableerrorcontroldetectionphase
-J1
Enable error control detection phase
"H
"H0 V.42bisdatacompressiondisabled
"H1 Can send but not receive V.42bis data
compression
"H2 Can receive but not send V.42bis data
compression
"H3 Bidirectional V.42bis data
compressionenabled
"On
n=6- Set maximum V.42bis data block size to n.
250
Default is 16
3.6 Fax Class 1 Commands
+FAA=n
Data/Fax auto answer enable. Default is 0
+FAE=n
Data/Fax auto answer enable. Default is 0
Returnscurrentoperatingmode
Setsoperatingmode
Returns availablesupportedmodes
Identifymodemmanufacturer
Identifyproductmodel
+FCLASS?
+FCLASS=n
+FCLASS=?
+FMFR?
+FMDL?
+FPREV?
Identifyproductrevision
+FRH=<mod> Receive HDLC data
+FRHM=<mod>Receivedata
+FRS=<time> Waitforsilence
+FRTn
Faxreceivetestcommand
+FTH=<mod> Transmit HDLC data
+FTM=<mod> Transmit data
+FTS=<time> Stoptransmissionandpause
+FTTn
Faxtransmittestcommand
3.7 Voice Mode Commands
#VBP
Generatebeeptone
#VCL=n
#VCSD=n
#VGPS=n
#VGPC=n
#VIN
#VIP=n
#VLN=n
#VOUT=n
Voicemodeselection. Defaultis0
Commandmodesilencedetection.Defaultis0
Input pin function selection. Default is 0
Input pin character selection. Default is 0
Read general purpose input pins
Initialize parameter. Default is 0
Relay/speaker control. Default is 0
Write to output pins. Default is 0
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#VPH
#VPL=n
#VPY
Telephoneemulationmode.
Play level. Default is 127
Playmode
#VRD
Recordmode
#VRL=n
#VSL=n
Recording level. Default is 127
Recordingsilencethresholdlevel.Default
is 127
#VSM=n
#VSQT=n
#VSR=n
Sampling mode. Default is CL1
Record mode “q” silence time. Default is 60
Sampling rate. Default is 9600
Record mode “s” silence time. Default is 60
#VSST=n
Setion Four - S Registers
Your modem has 35 registers, designated S0 through
S30, S37, S90, S108, and S109. Table 4-1 shows the regis-
ters, their functions, and their default values. Some registers
can have their values changed by commands. If you use a
command to change a register value, the command remains
ineffectuntilyouturnofforresetyourmodem.Yourmodem
then reverts to the operating characteristics specified in its
non-volatile memory. Refer to Section 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
S1 Ringcounter
0-255/rings
0-255/rings
0
0
S2 Escapecodecharacter
S3 Carriage return character
S4 Linefeedcharacter
S5 Backspacecharacter
S6 Dial tone wait time
S7 Remote carrier wait time
S8 Comma pause time
S9 Carrierdetecttime
S10 Carrier loss time
S11 Touch-tonedialingspeed
S12 Esc.characterdetecttime
S13 Reserved
0-127/ASCII
0-127/ASCII
0-127/ASCII
0-32, 127/ASCII
0-255/seconds
1-255/seconds
0-255/seconds
0-255/0.1second
0-255/0.1second
43
13
10
8
2
30
2
6
14
50-255/0.001 second 70
0-255/0.02second
50
S14 Echo,response,dialing,
originate/answer
Bit-mapped
S15 Reserved
S16 Modemtestoptions
Bit-mapped
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S17 Reserved
S18 Modemtesttimer
S19 Reserved
S20 Reserved
S21 DTR, DCD, DSR, and
LongSpaceDisconnect
S22 Speakerandresponse
S23 RDL, DTE data rate,
parity,andguardtone
S24 Reserved
0-255/seconds
Bit-mapped
0
Bit-mapped
Bit-mapped
S25 DTR delay
0-100/seconds
0-255/0.01second
Bit-mapped
5
1
S26 RTS/CTS delay interval
S27 Asyncoperation,CCITT/
Bellmode
S28 Reserved
S29 Reserved
S30 Sleepmodetime
S37 Maximumlinespeed
S90 Disconnecttimer
S108 Retrainoptions
S109 LineSpeedpermitted
0-90/seconds
0-11
0-255/seconds
0-3
10
0
0
2
62
2-62
Section Five - Result Codes
BASIC RESPONSE CODES
OK
0
CONNECT
1
RING
ERROR
NO DIALTONE
NOANSWER
CONNECT 4800
DATA
2
4
6
8
11
13
15
NO CARRIER
CONNECT 1200
BUSY
CONNECT 2400
CONNECT 7200
CONNECT 9600
3
5
7
10
12
14
FAX
CONNECT 12000 16
+FCERROR +F4
CONNECT 14400 17
MODIFIED RESPONSE CODES (\V1)
CONNECT 300/REL
22
CONNECT 1200/REL 24
CONNECT 4800/REL 26
CONNECT 9600/REL 28
CONNECT 14400/REL 30
CONNECT 2400/REL 25
CONNECT 7200/REL 27
CONNECT 12000/REL 29
EXTENDED RESPONSE CODES (\V2)
CONNECT300/REL-MNP
CONNECT 1200/REL-MNP
CONNECT 2400/REL-MNP
CONNECT 4800/REL-MNP
32
34
35
36
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CONNECT 7200/REL-MNP
CONNECT 9600/REL-MNP
CONNECT 12000/REL-MNP
CONNECT 14400/REL-MNP
CONNECT 300/REL-MNP 5
37
38
39
40
42
44
45
46
47
48
49
50
54
55
56
57
58
59
60
64
65
66
67
68
69
70
CONNECT 1200/REL-MNP 5
CONNECT 2400/REL-MNP 5
CONNECT 4800/REL-MNP 5
CONNECT 7200/REL-MNP 5
CONNECT 9600/REL-MNP 5
CONNECT 12000/REL-MNP 5
CONNECT 14400/REL-MNP 5
CONNECT1200/REL-LAPM
CONNECT2400/REL-LAPM
CONNECT4800/REL-LAPM
CONNECT7200/REL-LAPM
CONNECT9600/REL-LAPM
CONNECT12000/REL-LAPM
CONNECT14400/REL-LAPM
CONNECT1200/REL-LAPMV.42BIS
CONNECT2400/REL-LAPMV.42BIS
CONNECT4800/REL-LAPMV.42BIS
CONNECT7200/REL-LAPMV.42BIS
CONNECT9600/REL-LAPMV.42BIS
CONNECT 12000/REL-LAPM V.42BIS
CONNECT 14400/REL-LAPM V.42BIS
Section Six - Troubleshooting
This section describes some of the common problems
you may encounter while using your modem. If you can not
resolveyourdifficultyafterreadingthischapter,contactyour
dealer or vendor for assistance.
Modem does not respond to commands.
1. Make sure the modem is not configured with a conflicting
COM port and IRQ setting (see Section 2.4). Your modem
cannotbeconfiguredasCOM1(default)ifanotherdevicein
your system is also configured as COM1. Similarly, IRQ
settingsmaynotoverlap.
2. 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.
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Similarly, IRQ settings must be set correctly to receive data
fromthemodem.
3. 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.
4. 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.
Modem does not dial.
1. Makesurethemodemisconnectedtoaworkingphoneline.
Replace the modem with a working phone to ensure that the
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. Make sure the IRQ setting is identical on both the modem
ANDthesoftware.Modemandsoftwaremustbeconfigured
identically.
2. Make sure the phone line is working properly. Replace the
modem with a regular phone and dial the number. If the line
sounds noisy, you may have difficulty connecting to the
remotedevice.
Modem makes a connection but no data appears
on your screen.
1. Theremotesystemmaybewaitingtoreceiveyourdatabefore
it begins. Try pressing the ENTER key a few times.
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
anotherdevice(seeSection2.4).
High pitch tone is heard whenever you answer the
phone.
1. MakesureAuto-Answeristurnedoff.Yourmodemisfactory
configuredtoNOTauto-answer.IssueAT&Ftofactoryreset
yourmodem.
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Modem experiences errors while communicating
with a remote modem.
1. MakesuretheDTEspeedisthesameasthemodemconnec-
tion speed when in Direct Mode (\N1 command in effect).
2. Make sure the remote systemandyourmodemusethesame
communication parameters (i.e., baud rate, data bit length,
parity, and stop bit).
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
capability.MostIBMcompatiblesarecapableof19,200bps
underDOSandWindows.Operatingathigherspeedsunder
Windows requires a faster CPU (386/486 or better).
Modem experiences bursts of errors or suddenly
disconnects while communicating with a remote
modem.
1. Make sure Call Waiting is turned off.
2. Make sure the phone line does not exhibit excess noise.
Modem exhibits poor voice record or playback.
1. Make sure the correct modem type is selected in the Voice/
FAXsoftware.Use“CirrusLogic”orsimilarselection.Do
notselect“RockwellorRockwellICS”configuration.
Section Seven - Specifications
CCITT/Bell Std.
V.42bis, V.42, V.32bis, V.32, V.29,
V.27ter, V.22bis, V.22, V.21, V.17,
Bell212/103
MNPprotocols:
HostInterface:
COMports:
IRQlines:
MNP 5, 4, 3, 2
8 bit PC bus
1, 2, 3, 4
2, 3, 4, 5
FAXGroup:
GroupIIISend/ReceiveStandard
FAXCommandset: EIA/TIA-578 Service Class 1
VoiceCommandset: CirrusLogic
EscapeDetection: TIESEscapeSequence
Transmitlevel:
-12 dBm +/- 1 dB
ReceiverSensitivity: -40 dBm
UART:
16550 compatible
Data format:
Power:
300-57600 bps (8N1, 7E1,7E2,7O1,7O2)
0.75 W
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Temperature:
0 to 55 degrees C (Operating); -20 to 80
degreesC(Non-operating)
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.
Section Nine - FCC , DOC & Other Notices
9.1 FCC Compliance
This equipmentcomplieswithPart68oftheFCCRules. Onthis
equipment is a label that contains, among other information, 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
with the FCC.
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-
tinue use and contact your dealer or vendor.
The FCC also requires the transmitter of a FAX transmission be
properly identified (per FCC Rules Part 68, Sec. 68.381 (c) (3)).
9.2 FCC Class B Statement
Thisequipmenthasbeentestedandfoundtocomplywiththelimits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Theselimitsaredesignedtoprovidereasonableprotectionagainst
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harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy, and if not
installed and used in accordance with the instructions, may cause
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
• Increasetheseparationbetweentheequipmentandthereceiver
• Connecttheequipmentintoanoutletonacircuitdifferentfrom
thattowhichthereceiverisconnected
• Consultthedealeroranexperiencedradio/TVtechnicianfor
help
Notice: 1)Shieldedcables,ifany,mustbeusedinordertocomply
with the emission limits. 2) Any change or modification not
expresslyapprovedbytheGranteeoftheequipmentauthorization
could void the user’s authority to operate the equipment.
9.3 DOC Compliance Information
NOTICE:TheCanadianDepartmentofCommunicationslabel
identifies certified equipment. This certification means that the
equipmentmeetscertaintelecommunicationsnetworkprotective,
operational and safety requirements. The Department does not
guarantee theequipmentwilloperatetotheuser’ssatisfaction.
Beforeinstallingthisequipment,usersensurethatitispermissible
to be connected to the facilities of the local telecommunications
company.Theequipmentmustalsobeinstalledusinganaccept-
able method of connection. The customer should be aware that
compliancewiththeaboveconditionsmaynotpreventdegrada-
tionofserviceinsomesituations.
Repairs to certified equipment should be made by an authorized
Canadian maintenance facility designated by the supplier. Any
repairs or alterations made by the user to this equipment, or
equipmentmalfunctions,maygivethetelecommunicationscom-
pany cause to request the user to disconnect the equipment.
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 precaution may be particularly important in rural
areas.
Caution: Users should not attempt to make such connections
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themselves,butshouldcontacttheappropriateelectricinspection
authority, orelectrician, asappropriate.
NOTICE: The Load Number (LN) assigned to each terminal
devicedenotesthepercentageofthetotalloadtobeconnectedto
atelephoneloopwhichisusedbythedevice,topreventoverload-
ing.Theterminationonaloopmayconsistofanycombinationof
devices subject only to the requirement that the sum of the Load
Numbers of all the devices does not exceed 100.
9.4 Disclaimer, Copyright, And Other Notices
Theinformationcontainedinthismanualhasbeenvalidatedatthe
time of this manual's production. The manufacturer reserves the
right to make any changes and improvements in the product
described in this manual at any time and without notice. Conse-
quently the manufacturer assumes no liability for damages in-
curreddirectlyorindirectlyfromerrors,omissionsordiscrepan-
cies between the product and the manual.
All registered trademarks are the property of their respective
owners.
Copyright © 1995 All rights reserved. No reproduction of this
documentinanyformispermittedwithoutpriorwrittenauthori-
zationfromthemanufacturer.
FirstEdition
GZ/DR - Version 1.1
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