
AOpen FM56 PCI Fax/Modem
Thank you for choo si n g AOpen Fax/Modem. This file wi ll gui de you for inst allati on and AT
commands.
AOpen FM56-PL Manual
AOpen FM56-PL AT Commands

AOpen FM56 PCI Manual
Published in 2000
All rights reserved. No part of this publi catio n may be reprod u ced, transmit ted,
transc ri bed, stor ed in a retrieval system, or translated into any language or
comp u ter langu age, in any form or by any means, electroni c, mechanical,
magnetic , opti cal, chemical, manual or otherwise, with out the prio r writ ten
cons ent of the manufactu rer.
Disclaimer
The manufactur er makes no representatio n s or warr anties with respect to the
cont ents hereof and specifically disc laims any implied warranties of merchant
ability or fitness for any par t ic u l ar purpo se. Furthermor e, the manufact urer
reserves the right to revise this pu bl ic ation and to make changes from time to
time in the content hereof with ou t oblig ation to not ify any person of such
revision s or changes.
Trademarks
The manufa
ctu r er do es no t claim any tr ademark th at appears in th i s publicati o n .
All names, brands , produ ct s or services are trademarks or regist ered trademarks
of their respective compani es.
Table of Contents
1. Introduction
2. Feat ures
3 Pa rt s And Fun ctions
3.1 PC Car d Connection
3.2 PC Car d Br acket Connection
4. In stalling T h e Fa x/Modem
4.1 Ch ecking Your Components
4.2 What Else You Need
4.3 Installing The PC Card Fax/Modem
4.4 Connecting To Th e Telephone Line
4.5 Connecting To Your Telephone Set
4.6 Verifying Your Connection
4.7 Connecting Micr ophone And Speaker
4.8 Voice Function Alter n a tives
4.9 Configuring In t er n a l Modem With Windows95/98/2000/NT

nfiguring Your Commu nication Software
4.11 Tips On Configuring SVD
5. Executing Comma n d s
6. S-Registers
7. Specification
Appendix A: FC C Compliance
A.1 FCC Notice
A.2 FCC Requirement
Append ix B: Defau lt P rofiles

AOpen FM56 PCI AT Commands
Table of Contents
1. Introduction
1.1 OVERVIEW
1.2 Command Descriptions
1.3 REFERENCE DOCUMENTATION
2.1 Alphabet
2.2 DTE Commands Lines
2.2.1 Command Line Gen
2.2.2 Command Line Editing
2.2.3 Command Line Echo
2.2.4 Repeating a Command Line
2.2.5 Types of DTE Commands
2.3 Basic Syntax Commands
2.3.1 Basic syntax command format
2.4 Extended Syntax Commands
2.4.1 Command Naming Rules
2.4.2 Values
2.4.2.1 Numeric Constants
2.4.2.2 String Constants
2.4.2.3 Compound Values
2.4.3 Action commands
2.4.3.1 Action ex
ecution command syntax
2.4.3.2 Action Test Command Syntax
2.4.4 Parameter Commands
2.4.4.1 Parameter Types
2.4.4.2 Parameter Set Command Syntax
2.4.4.3 Parameter Read Command Syntax
4 Parameter test command syntax
2.4.5 Additional Syntax Rules
2.4.5.1 Concatenating Commands after Extended Syntax
Commands
2.4.5.2 Concatenating commands After Basic Format
2.5 Issuing Commands
2.6 Executin
2.6.2 Handling of Invalid Numbers and S-Parameter Values
2.7 Modem Responses
2.7.1 Responses
2.7.2 Extended Syntax Result Codes
2.7.3 +<name>: <compound_value>Information Text F

2.7.3.2 Compound Range of Values
3. DATA COMMAND SET
3.1 COMMAND GUIDELINES
3.1.1 Escape Code Sequence
3.1.1.1 +FCLASS=0
- Select Data Modem Mode
3.2 DAT A COMMANDS
3.2.1 Generic Modem Control
- Reset to Default Configuration
- Select Active Service Class
- Set to Factory-Defined Configuration
- Request Identification Information
- Request Manufacturer Identification
- Request Model Identification
- Request Revision Identification
- Request Product Serial Number Identification
- Request Global Object Identification
- Request Complete Capabilities List
3.2.2 DTE-Modem Interface Commands
- Command Echo
3.2.2.2 Q - Quiet Results Codes Control
- DTE-Modem Local Flow Control
- DTE-Modem Local Rate Reporting
- Enable/Disable Video Ready Mode
3.2.3 Call Control
- Return to On-Line Data Mode
- Select Pulse Dial Make/Break Ratio
- Display Current Configuration and Stored Profile
- Store Current Configuration
3.2.4 Modulation Control Commands
- Modulation Reporting Control
3.2.5 Error Control Commands
3.2.5.1 +ES
- Error Control and Synchronous Mode Selection
- Break Handling in Error Control Operation
- 32-bit Frame Check Sequence

- Error Control Reporting
- Call Termination Buffer Management
3.2.6 Data Compression Commands
- Data Compression Reporting
- Enable/Disable Line Quality Monitor, Auto-Retrain,
and Auto-Rate Renegotiation
- Line Signal Quality
3.2.7 V.8/V.8bis Commands
- V.8 and V.8bis Operation Controls
- Send V.8bis Signal and/or Message(s)
- Calling Tone Indication
- Answer Signal Indication
- V.8 Negotiation Complete
- V.8bis Signal and Message Reporting
3.2.8 Synchronous Access Mode Commands
- Configure Synchronous Access Mode
- Transmit Flow Control Thresholds
3.2.9 World Class Commands
- Display Blacklisted Numbers
- Display Delayed Numbers
- Country of Installation
3.3 S-PARAMETERS
- Write to Selected S-Parameter
- Read Selected S-Parameter
3.3.2 Factory Defaults
3.3.3 S
- Number of Rings to Automatic Answer
- Line Termination Character
- Response Formatting Character
- Command Line Editing Character
- Wait Time for Dial Tone Before Blind Dialing, or
After "W" Dial Modifier (W-Class Models)
- Wait Time For Carrier After Dial, For Silence, or For
Dial Tone After "W" Dial Modifier (USModels)
- Pause Time For Dial Delay
- Lost Carrier To Hang Up Delay
- Escape Prompt Delay (EPD)
- Flash Dial Modifier Time
3.4 CELLULAR COMMANDS

3.5.2 Description of Result Codes
3.6 AUDIOSPAN AND DSVD
-SSE - Enable/Disable DSVD
4. FAX COMMANDS
4.1 FAX I/O PROCESSING
-to-Modem Transmit Data Stream
-to-DTE Receive Data Stream
4.1.3 Fax Mode Selection
4.1.4 Fax Origination
4.1.5 Fax Answering
4.1.6 Fax Control Transmission
4.1.7 Fax Control Reception
4.1.8 Fax Data Transmission
4.2 COMMANDS AND PARAMETERS
4.2.1.1 +FCLASS=1.0 or +FCLASS=1 - Select Facsimile Class 1
Mode
.1.3 +FTS - Transmit Silence
- Transmit Data with HDLC Framing
- Receive Data with HDLC Framing
4.2.2 Service Class 1 Parameters
- Adaptive Reception Control
- Double Escape Character Replacement
- Request Manufacturer Identification
- Request Model Identification
- Request Revision Identification
4.2.2.9 +FLO - Flow Control
4.3 EXAMPLES
5. VOICE COMMANDS
5.1 Voice Commands Overview
5.2 Voice Commands
5.2.1 Configuration Commands
5.2.1.1 +FCLASS=8
- Automatic Hang-up Control

5.2.2 Voice Commands
5.2.2.1 +VIP
- Voice Initialize All Parameters
X - Start Modem Receive (Record)
- Start Modem Transmit (Playback)
- Voice Gain Receive (Record Gain)
- Voice Gain Transmit (Playback Volume)
- Voice Inactivity Timer (DTE/Modem)
- Analog Source/Destination Selection
- Ringback Goes Away Timer
- Ringback Never Appeared Timer
.2.2.11 +VSD - Silence Detection (Quiet and Silence)
- Compression Method Selection
- Beep Tone Duration Timer
- Control Tone Cadence Reporting
- Buffer Threshold Setting
- Select DTE/Modem Interface Rate (Turn Off
Autobaud)
5.2.3 Speakerphone Commands
5.2.3.1 +VSP
- Speakerphone Duplex Mode
- Speaker Gain
6. ISDN COMMANDS
7. COMMAND SET SUMMARY
8. INDEX

1. Introduction
Congratulatio ns on purch asin g a state-of-the-art fax/modem! Your Fax/Modem inco r po r ates the
latest technol og ic al advancement for you to electronically comm u ni cate with other computers,
info rm ati on networ ks , fax machin es or other fax/modems. It embraces most of the indus tr y and
commerci ally popul ar standards to ensure compatibil ity with most equipment and application
prog rams. The voice capability renders a wide range of applicatio n pos si b il i ti es from a simple
telephone-answerin g device to a sophis tic ated voice-mail sy s tem . The SVD feature allow s yo u to
talk and transmit data at the same tim e.
This manual includes instru ct ion s on installi ng , connecting and setting your Fax/Modem. A
section on diagnos ti cs usi ng loop back test is also inclu ded to help you isol ate prob lems that may
occu r anyw here from the compu ter interface to the modem at the remote site.

2. Features
• Lin e rate of 56 Kbps for do w n l o ad (FM56 series model on l y )
• ITU-T V.90 specifi cations for operati o n at speed of 56,000 bps.
• MNP10 dyn ami c data rate fallb ack and forward on the run.
• Software contro ll ed speaker volume.
• Software selectable flow cont ro l .
• Voice option for voice mail application .
• SVD for simu l t aneou s vo i ce and data. (Optio n al)
• Zero-Volt age Modem wake-up function
• Cooperate with the sound card setting in yo u r com pu ter. (Optional)

3.2 PC Card Bracket Connection

4.1 Checking Your Components
Unpack your fax/modem and make sure you have the follow i n g items:
• The fax/modem.
• A modu l ar telephone cable to connect your fax/modem to the telephon e line.
• Communic ation softw are.
• Two cables li n k JP1 and JP2 to sound card and mother board
When you op en yo u r package, make sure all of the above items are incl u d ed and not damaged. If
you see that any compo n ents are damaged, please notify yo u r dealer immediately .

4.2 What Else You Need
To compl ete your data communicatio n system, you will need the follow in g items:
Other commun i catio n softw are, if needed.
An active telephon e line and telephone set (if you need to use a telephone with you r mod em).
An available PCI slo t i n the personal computer.
For voice function, a micro p h one and a speaker for voi c e reco rding and pl ay ing.

4.3 Installing The PC Card Fax/Modem
The follo w i ng instr u cti o ns explain how to inst all the fax/modem into a PC comput er. If you wil l be
ins t alling th e fax/modem in t o a differ ent comput er, refer to the manual that came with yo u r
compu ter or contact your computer dealer for instructio ns.
1. Turn of f the computer. No power must be applied to your
computer when you install the internal fax/modem, or the
computer could b
2. Make sure you can freely access the back of the person al
computer. Remove the computer cover.
3. Select any available PCI slot into which you can
install the internal fax/modem.
4. Unscrew and remove the slot c
5. Hold the in ternal fax /modem above the slot you h av e selected, and c ar ef ull y slide
the fax/modem int o the slo t, apply ing even pressur e to both ends of the fax/modem .
Stop inserting the fax/modem when its gold-pl ated edge connector is align ed and full y
seated int o the base of the computer.
6. Connect the sound card cable wit h JP1 and the sound card.(Optional)
7. Connect the wake up ring cabl e with JP2 and the moth er board.(Option al)
8. Use the screw that was holdin g the slot cov er to secure the
fax/mo dem in the slot.
9. Use the cov er-m o u n ti n g scr ews to secure the compu ter
cover. This comp letes the hardw are installation of your
fax/modem.

4.4 Connecting To The Telephone Line
Use the foll ow i ng proc edure to connect your fax/modem to the telephone line:
1. Loc ate an availab l e RJ-11 modu l ar jac k teleph one outl et.
2. Take one end of the modular cor d supp l i ed wi th the fax/modem and plug it in to the
LINE modular jack on the b a ck of the fax/modem.
3. Plug the other end of the mod ular cord into the modu lar jack on the wall outlet, as you
would any modular telephone.

4.5 Connecting To Your Telephone Set
Your fax/modem also convenientl y prov id es a second modu lar jack that lets you conn ect you r
telephon e to the same telephone line that the fax/mo d em is us ing. Thi s lets y o u manuall y dial
data calls or make voice calls when you are not usi n g yo u r fax/modem. Also if you do no t have
speaker phone and microph o n e, handset of telephone set can functi o n as an inpu t /outp ut device
for voice to verify the connecti o n.
Use the foll ow i ng proc edure to connect your telephone to your fax/modem:
1. Connect the telephon e's mo d u l ar cor d int o th e PHONE jack
on the back of your fax/modem.
2. Li f t y o ur telephone's handset and lis t en fo r a dial tone.

4.6 Verifying Your Connection
Start a commun ic atio n prog r am and place the compu ter into termin al mod e. Refer to your
comp u ter manual to find out the approp ri ate command to do so.
Then use the followi n g procedu re to verify you r ins tallation :
1. Type
AT[Enter]
If you r sy stem is operatin g pro perl y , your fax/modem sends an OK response to your screen and
waits for your next command.
2. Use your commun icati o n soft ware to prepar e your
computer to dial a call. Then type
where x is equal to T for touch
-to ne or P for pu lse
dialing. The ph one number is your telephone number.
For example, if your fax /m odem i s connected to the telep hon e
line 555-2121 and tou c h -to ne dialing is supported in your area,
type
ATDT 5552121[Enter ].
3. You s h oul d hear the bus y signal and rec ei ve a BUSY
response becaus e the fax/mod em is call ing itself.

4.7 Connecting Microphone And Speaker
You coul d either use a handset conn ected to the fax/mod em, or conn ect a micr op h o n e and a
speaker for voice recording and playback, or connect cable of Jumper 1 with soun d card in you r
PC (option al, refer to sound card user's gui d e). Also, you may enable the ring wake up functi o n
by connecting the cable of Jumper 5 to motherbo ard . (the funct i o n is opt i onal, see the PC user's
manual for mo re detail)
NOTE:
Any commercially available microphone is usable.
For the speaker, any 8 ohm speaker rated around 1Watt can
be driven directly by the audio output. An amplifier is
required if you need a higher output volume.
1. Connect the micro ph on e to the mini-p h one jack marked MIC.
2. Connect the speaker to the min i-p h o n e jack marked SPK.
NOTE:
Take care of the pin setting and cable setting direction (JP1 and JP2) for your Fax/Modem
card, Sound card and Motherboard.

4.8 Voice Function Alternatives
1. AOpen Sound Card (recommanded)
Simply co n nect the cabl e from modem to AOpen Sound Card. User can get all th e voice
function incl uding message pla
yin g and recording through sound cards.
2. SpeakerPhone and MicroPho n e
Con nect SpeakerPh one and MicroPh one to modem. User can also get vo ice perf orman ce.
NOTE:
Any commercially available microphone is usable.
For the speaker, any 8 ohm speaker rated around 1 Watt can
be driven directly by the audio output. An amplifier is
required if you need a higher output volume.

4.9 Configuring Internal Modem With
Windows95/98/2000/NT
Wind ows 95:
1. Compl ete the installati o n referred to sectio n 4.3.
2. Restart the comput er after plugg i n g in the mod em. When Window s detects th e modem, the
message "This wizard will comp l ete the installatio n of: PCI Serial Contro ll er" is displayed.
3. Click Next, then Other location, then enter the path to the driv ers , then cli ck OK.
4. Win
dows display "Wind o ws found th e following updated d river fo r th i s device: AOpen PCI
Modem Enumerator".
5. Click Finish and Window s di sp l ays " Pl ease insert the disk labeled 'WIN95 install ati on Disk' ,
and then click OK.
6. Click OK and enter the path of the drivers again. Installation sho ul d then compl ete
automatically.
After compl eting the installation, you can check if the fax/modem was properly installed by usi ng
the follow in g procedure:
1. From My Comput er, doub l e click Control Panel.
2. Double click Modems.
3. Select Diagnostics tab.
4. Choose the COM port wh ere the newly in stal l ed mod em devic e is. Clic k More Info
Command and Respo ns e box dis p l ays result s fro m ATI1 to AT+FCLA..., it indic ates that your
fax/modem is set up pro perl y .
Wind o ws 2000:
1. Start compu ter after pluggi ng in the modem. Windows wil l detect the modem.
2. Then the message “Welcom e to the Found New Hardw are Wizard” is dis p l ayed.
Click Next.
3. When Windows displ ay “This wizard will compl ete the installatio n for this device:
PCI Simpl e comm un i c ations contro ll er”, choos e “ Search for a suitable driver for
my device”, then click Next.
4. When Windows disp l ay” Search for driv er files for the foll ow i ng hardware device:
PCI Simple communication s contro ller”, choose “Specify a location”, then clic k
Next.
5. In order to copy manufacturer’s files, click Browse.
6. Choose the correct path: D:\Drivers\Win2K\FM56-PL.( D is y our CD-ROM.) Then
click OK.
7. Then the message will sho w the path you cho s e. Click Next.
8. If you want to contin ue installation , click Yes.
9. Windo w s has finish ed installatio n. Click Finish.
After compl etin g the installatio n, you can check if the fax/modem was properl y
installed by using the follow i ng procedure:
1. From My Computer, doub l e click Control Panel.
2. Double click Modems.
3. Select Diagnostics tab.
4. Choo s e the COM port where the newly ins tall ed mo dem devi ce is. Click on
More Info If the Command and Response box displays results from ATI1 to
AT+FCLA..., it indi c ates that your fax/modem is set up properly .

Win d ows NT4.0:
1. Explorer the driver files on you r CD.
D:\Drivers\WinNT\FM56-PL
2. If you are usin g th e WINACPCI driver already stop it usi n g the steps in the follo w i n g li s t.
a) Stop any programs (e.g., Hyp er Ter m) that are usi ng the modem driver
b) Click on Start, th en Settings, then Control Panel .
c) Start the Devices applet
d) Scro l l dow n to WinAcPci and highlight it
e) If the di s p lay says "running", contin u e with the next st ep . If not,
you are done.
f) Pres s the STOP but t on and say "yes", you do wan t to sto p the dr iver.
g) Wait until the driver stops (there shoul d be a "w ait" dialog to watch)
h) Where the applet said th e driver was " runn ing" sho uld no w be blank
3. Start SETUP.EXE with a doub le cli c k or by highli g h ti n g the fil e and pressin g the ENTER key.
You shou l d see a welcome screen. Clic k on the NEXT butto n .
4. You shou l d see "AOpen FM56-
PM(SM) Data Fax Speakerphone PCI Modem" in the display
win d ow . Highlig h t it by cli ck in g on the text. Click on the NEXT button to install the driver.
5. You shoul d see a few copy operation s and hear a small flurr y of disk activi ty , and you shou l d
see the next screen which says "the follo w in g dri vers were install ed successful ly ."
6. The driv er is now ins tall ed and runn i ng . Note that you do not have to re-boot your system to
use the driv er. You may exit the installatio n pro c edur e and start HyperTerm to use the driv er
on COM3 right no w .
7. To continu e the installatio n pro ced ur e to create the registry entri es for the modem, perform
the steps in the followi ng list.
a) Cli ck the check box tit led, "Setup
mod em for the install ed devices", and press the
FINISH button . You are now in the domain o f th e st an dard
Wind o ws NT modem ins t aller. If you have previously in s t alled the NT mod em , you will
see a listbo x sho wi n g the installed modems on you r sys tem.
b) If you are usin g the HCF modem already, remove it by click in g on it in the listbo x and
pressing the REMOVE butto n . When the modem is gone, press the ADD but to n to
conti n ue install in g this versio n of the HCF modem.
8. There are two ways to fin i sh the install atio n . The firs t way is to ask the install er to detect the
HCF modem. The second way is to select the HCF mod em from the lis t usi n g the "h ave disk "
feature.
9. To ask the install er to detect the modem, clear the " Don' t detect my mo dem..." check box and
press the NEXT button . Windows NT will qu ery every com por t and fin d every mod em
attached to you r sy st em. When it gets to COM3, it wi l l detect a " st and ard mod em". Clic k the
CHANGE butto n and prep are to select th e modem INF fil e.
10. To select the mod em fro m a list, check the "Don't detect my mod em..." check box and press
the NEXT button . After a moment , NT will show the li s t. Press the HAVE DISK butto n to
select th e HCF mo dem INF file.
11. At the " Install From Disk" dialog, enter the directory path where you loaded the installation

fil es. Select the modem from the list bo x and cli ck the OK butto n . This wil l return you to the
" Install new modem" dialog. Press the NEXT button to ins tall the modem files.
12. Check the "Selected Ports" button and high light COM3. Press the Next button .
13. You are don e. Clic k the FINISH butto n and start using the mod em.

4.10 Tips On Configuring Your Communication Software
Your fax/modem uses the most up-to-date indu str y and commercially pop ul ar standards to
ensure functi onal compatib ili ty with most commu ni cation software. During initial set-up of the
comm un i catio n softw are, it will nor m ally prom pt yo u to define the type of fax/modem you are
usin g . Follow in g is a general guideli n e to the device type you should choose.
NOTE:
The device type only defines the protocol by which your software will communicate with
your fax/modem and does not set nor limit the speed.
1. For the baud rate. choo s e any sp eed between 38,400 to 115,200.Your fax/mo d em will
automatically adjust to the best transmissio n speed after successfull y connectin g wi th a
remot e fax/modem.
2.
Many com m u n i cati o n sof tw are uses the modem respo n s e (see Ch 7) to contr o l pro g r am
fl ow. Make sure that the software is set to reco gni ze a CONNECT 115200
respo n s e. If this
does not wo rk , set the progr am to simp l y recogn i ze just the CONNECT respo ns e with ou t any
baud rate inform ation .
3. There are three flow cont r ol mode: none, hardware (CTS/RTS) or software (XON/XOFF). Set
you r sof tw are to use either hardware or softw are flow control . If set to none, the
comm un i catio n softw are will not be able to detect a buffer overflow and result in transmissi on
errors.
4. For fax devi c e type, choo s e 'TR29 Class 1'.
5. For fax speed, choos e 'autom atic ' or 'fastest sp eed'. Your fax/modem will automatically adjust
to be best transmis si o n speed after successfu l ly con n ectin g with a remote fax machin e or
another fax/modem.
6. Make sure that you have correctl y set all the other parameters requi red by the soft ware to
op erate successfully. Refer to the manual that came with yo ur comm u ni catio n softw are for
details.
You are now ready to do fax/modem communication !

4.11 Tips On Configuring SVD (Option)
Add "-SMS=2" to the modem stri n g in com mu n i catio n prog ams to enable the SVD functi on. For
com p l ete SVD comm an d s , please refer to the AT command fil e on the dri v er di s k .

5. Executing Commands
If you wi ll be using a comm un i cation softw are program to make data calls, you wil l prob ably not
need to typ e commands , because your softw are prog
ram w ill handle these task s for yo u .
Similarly , you wil l prob ably not see the respons es because your soft ware program may intercept
them. However, if you perfo r m data activiti es di r ectl y wi t h yo u r fax/modem, you wi l l fin d the
format for typi ng fax/modem commands and fax/ modem respons e helpful.
Using com mand s , you can have your fax/modem perform a variety of activi ties, such as dialing or
answ eri n g a data call or sendi ng a fax. In ord er to send co m mands to y o u r fax/modem, you
mus t access the mod em in a terminal mode which is provi ded by most commu ni cation software.
To enter a command lin e, type:
ATccpp[Enter]
where AT must preced e ever y com mand l ine (except w hen
you ty pe the A/ command ).
cc any of the commands available, described in
succeeding sections.
pp any parameters that is requi red by the command .
If you make a mistak e while typ i ng a com m an d , press th e Backs p ac e key to delete the error .
To make a command line easy to read, you can ins ert spaces parenth eses, hyp h ens , and other
punc tuatio n in you r com mand lin e. For example:
-1234
Your fax/modem ignor es spaces and punc tuati on marks when executing a command line, but
these characters apply to the 40 characters lim i t.
A command li n e can contain up to 39 characters. If you want to typ e mor e than 39 characters on
a command lin e, type a regular com m an d lin e (up to 39 characters lon g ) and end it with a
semic ol o n as the last character. When you press Enter, your fax/modem executes the commands
and returns to command mod e, so you can type your next command li ne.
For your conv enienc e, the last command lin e you execute remains stored in the modem's
memo r y until you ty p e a new comm an d li n e and pres s the Enter key. If you wan t to re-execut e
the last co mmand , ty p e
A/
The A/ command need not be prefixed by the 'AT' characters or ended wi t h the [Enter] key.
NOTE:
The fax/modem com mand and respo nse set are descri b ed in th e text fil e, AT_CMD.TXT, in the
fax/mo d em Window s 95 driver di sk ette. You can use DOS EDIT or any suitable editor to vi ew thi s
fil e.
If a com mand requires a parameter su ch as 0 and 1, the parameter i s identif ied as n in the left
col u mn and descr ib ed in the righ t col um n of the AT_CMD.TXT file.
IMPORTANT:
Each command , except for '+++' and 'A/', must be preceded by 'AT' and executed when yo u
press th e [Enter] key. To review th e for m at us ed to send fax/modem com mands, refer to Section

6. S-Registers
Your fax/mod em has S-registers that affect various operatin g ch aracterist i cs . The registers let
yo u ob t ain information abou t the fax/mod em , and let you test the fax/mod em. Each S
-Register
has a factory -s et value, whi ch yo u can read or change to fit your partic ul ar requi rements . A
complete list of S-Register is pr o vided in the COMMAND.TXT file on the driv er di s kette.
6.1 Reading An S-Register Value
6.2 Changing An S-Register Value

6.1 Reading An S-Register Value
1. To read the curr en t val ue of an S-Register, type:
where r is an S-Register numb er.
The fax/modem responds with decimal value of the
S-Register, in thr ee-digi t form at, follo w ed by OK.
2. To read values from more than one S-Register, type:
r sp ecify the d iffer ent S
For example, to read the value of Register S0 (number of
rings before answering) an d S1 (incoming ri ng count),
type:

6.2 Changing An S-Register Value
To change an S-Register value, typ e
ATSr=n[Enter]
where r is the S
-register numb er.
n i s the value you want to assign to th at S-regis ter.

7. Specification
MODEM OPERATION
Li n e Rate 0.3, 1.2, 2.4, 4.8, 7.2, 9.6, 12, 14.4, 16.8, 19.2, 21.6, 24, 26.4, 28.8,
31.2, 33.6, 56 Kb ps
DTE Rate 115200 bps maxi m u m
Operation Half or full -d up l ex over 2-wire dial-up line, asynch ron ous
Linking Auto dial/answer, auto baud i n g , MNP10 auto fall-back/forward
Flow Control RTS/CTS, XON/XOFF (software selectable)
Compatibility Bell 103; 212A, ITU-T V.21; V.22; V.23; V.22bis ; V.32; V.32bis; V.34;
V.90; K56flex (56K model on l y)
Error Correction ITU-T V.42, MNP4 (auto-match)
Data Comp ressi o n ITU-T V.42bis, MNP5 (auto-match)
Receiv e Sensitivity -36 dBm
Command Set Hayes AT and Escape sequen c e
Memory 1 configu ration profil es
Diagnostics Power on self-test, V.54 loop test
FAX OPERATION
Speed 14400 bps
Compatibility Group 3 with T.30 proto c o l ov er ITU-T V.17; V.21 ch2; V.27ter; V.29
Command Set TR-29 Class 1
VOICE OPERATION
Operation
PVS Telephon e answ ering mach i n e (TAM), voice mail sy s t em,
Simu l t aneu o s Voic e and Data (SVD), Option al
Samplin g Rate 7.2 Khz using 2, 3 or 4 bi t s A DPCM; 11.025Khz li near PCM
GENERAL
Lin e Interface 2 x RJ-11 for li n e and telephon e
Voice Interface 2 x mini phone jack for micropho ne input and audio output
Amb ient Temp. 0 to 50
Relative Humi di ty 10 to 95% non-condensing
Dimensions 1.6w x 10.7h x 13.0d cm