Boca 112k dynamicduo Operating and maintenance manual

Boca 112K DynamicDuo

Modem

Up to 112Kbps DATA

14.4Kbps FAX

Plug-and-Play

Hardware Reference Guide

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3

BefBef

Beforor

oror

oree

ee

e YY

YY

You Begou Beg

ou Begou Beg

ou Begin yin y

in yin y

in your Installaour Installa

our Installaour Installa

our Installationtion

tiontion

tion

The product you have purchased is designed to be

easily installed into most IBM PC or compatible

systems. Many products have large, easy-to-read

legends to allow for the easy configuring of the

product. This installation manual contains detailed

instructions. Most included software has automatic installation

programs to place the software correctly onto your computer.

However, as all computers are configured differently, you may be

required to perform some basic Windows tasks. If you are not familiar

with basic Windows commands, you should check your Windows

documentation, or seek assistance from you local computer dealer to

install the product.

HoHo

How to getw to get

w to getw to get

w to get TT

TT

Technicalechnical

echnicalechnical

echnical AssistanceAssistance

AssistanceAssistance

Assistance

The dealer that you purchased this product or your computer from is

the first place you should go for technical

assistance. The dealer is usually the most

qualified source of help, and is most familiar

with your system and how this product

should be installed. Many dealers have

customer service and technical support programs, with varying levels

of support offered, depending on your needs and computer

knowledge.

Please contact the dealer first whenever a prPlease contact the dealer first whenever a pr

Please contact the dealer first whenever a problemoblem

oblemoblem

oblem

occurs.occurs.

occurs.

If yIf y

If your Dealer Can’our Dealer Can’

our Dealer Can’our Dealer Can’

our Dealer Can’tt

tt

t Assist yAssist y

Assist yAssist y

Assist youou

ouou

ou

If you can’t get assistance from your dealer, the manufacturer

provides varying levels of technical assistance as summarized on the

following page.

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Boca 112K DynamicDuo ModemBoca 112K DynamicDuo Modem

Boca 112K DynamicDuo Modem

The Standard Free Technical Support number is for quick answers to

specific inquiries on product features and technical questions (call 561-561-

561-561-

561-

241-8088241-8088

241-8088; M-F, 8 am to 6:30 pm EST). Direct access to technical support

representatives is provided on a limited basis. If you require immediate

attention or in-depth help with the installation of the product, please call

our 900-priority support number for service. This number gives you

immediate access to senior-level technicians. The number is 900-555-900-555-

900-555-900-555-

900-555-

49004900

4900. You will be charged $2.00 per minute. The charges will appear on

your next phone bill.

Damaged or Missing ItemsDamaged or Missing Items

Damaged or Missing Items

We use many world-class quality assurance programs to ensure the

product you purchased is of the highest caliber. Sometimes, however, a

component may be missing from the box, or is damaged or corrupt in

some way. If this happens, immediately return the entire package to your

place of purchase so you may exchange it for a new one. Your dealer

should be able to provide you with an exchange far more quickly than

by contacting us directly. If for some reason you are unable to return the

product directly to its place of purchase, refer to the “Servicing Your

Product” and “Warranty” sections in this manual for instructions.

AutomatedAutomated

Automated

FaxFax

Fax

Retrieval SystemRetrieval System

Retrieval System

561-995-9456561-995-9456

561-995-9456

Standard FrStandard Fr

Standard Freeee

eeee

ee

TT

Technical Supportechnical Support

echnical Supportechnical Support

echnical Support

561-241-8088561-241-8088

561-241-8088

Priority ServicePriority Service

Priority Service

900-555-4900900-555-4900

900-555-4900

2

3

1

4

56

79

8

On-Line SupporOn-Line Suppor

On-Line Support!t!

t!t!

t!

CompuServeCompuServe

CompuServe

: GO BOCA: GO BOCA

: GO BOCA

InternetInternet

Internet

::

:

email:email:

email:

[email protected][email protected]

[email protected]

on the Won the W

on the World-wide WEB:orld-wide WEB:

orld-wide WEB:orld-wide WEB:

orld-wide WEB:

http://wwwhttp://www

http://www.bocaresearch.com.bocaresearch.com

.bocaresearch.com.bocaresearch.com

.bocaresearch.com

Boca BBSBoca BBS

Boca BBS

561-241-1601561-241-1601

561-241-1601

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Using this manual...Using this manual...

Using this manual...

This manual provides installation and operating instructions for your modem. The

manual assumes the user has basic computer skills and is familiar with personal

computers. Its primary purpose is to provide physical installation instructions and

basic troubleshooting.All sections should be read carefully before beginning any

installation procedures. Customer support experience has shown that many costly

and time-consuming calls to technical support staff can be avoided with closer

attention to the information provided here. In addition to following theIn addition to following the

In addition to following theIn addition to following the

In addition to following the

instructions provided in this manual, you will also need to consult theinstructions provided in this manual, you will also need to consult the

instructions provided in this manual, you will also need to consult the

documentation supplied with your communications software.documentation supplied with your communications software.

documentation supplied with your communications software.

IMPORIMPOR

IMPORTT

TT

TANT NOTICEANT NOTICE

ANT NOTICEANT NOTICE

ANT NOTICE

FCC RequirementsFCC Requirements

FCC Requirements

The Federal Communications Commission (FCC) restricts the way you can use

modems. Read the FCC compliance statement found in Appendix B of this manual.

Connecting the ModemConnecting the Modem

Connecting the Modem

You can connect the modem to various types of telephone jacks. The acceptable

phone jack types are RJ-11, RJ-12, RJ-13, RJ-41S, and RJ-45S. Most homes and

businesses use one of these jacks. If your phone system does not have a modular

jack, you can purchase an adapter to convert your jack into an RJ-11C jack.

Adapters may be purchased from any local phone or electronics store.

CopyrightCopyright

Copyright

is allowed without permission in writing from Boca Research, Inc. Boca Research Inc. is not

liable for any damage resulting from technical or editorial errors or omissions contained in

this document. The information in this manual is subject to change without notice. Revisions

to the product(s) in this manual may occur at any time without notice.

TT

Trademarksrademarks

rademarksrademarks

rademarks

All references to computer systems, software, and peripherals use trademarks owned by

their respective manufacturers.

Publication DatePublication Date

Publication Date: November, 1997

Printed in the U.S.A. 9346.P65

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Boca 112K DynamicDuo Modem

ContentsContents

Contents

Section One: IntroductionSection One: Introduction

Section One: Introduction ........................................................................

........................................................................

.................................... 88

88

8

Section Two: InstallationSection Two: Installation

Section Two: Installation ........................................................................

........................................................................

.................................... 1010

1010

10

2.1 Installing the Modem2.1 Installing the Modem

2.1 Installing the Modem................................................................................................

................................................................................................

................................................ 1010

1010

10

2.2 Modem Setup for Windows 95 Users2.2 Modem Setup for Windows 95 Users

2.2 Modem Setup for Windows 95 Users ......................................

......................................

................... 1313

1313

13

2.3 Modem Setup for Windows NT Users2.3 Modem Setup for Windows NT Users

2.3 Modem Setup for Windows NT Users ..................................

..................................

................. 1515

1515

15

2.4 Testing the Connection2.4 Testing the Connection

2.4 Testing the Connection........................................................................................

........................................................................................

............................................ 1717

1717

17

Section Three: TroubleshootingSection Three: Troubleshooting

Section Three: Troubleshooting................................................

................................................

........................ 1818

1818

18

Appendix A: Technical SpecificationsAppendix A: Technical Specifications

Appendix A: Technical Specifications........................

........................

............ 2323

2323

23

Appendix B: Regulatory StatementsAppendix B: Regulatory Statements

Appendix B: Regulatory Statements................................

................................

................ 2424

2424

24

Appendix C: Modem Command ReferenceAppendix C: Modem Command Reference

Appendix C: Modem Command Reference ......

......

... 3030

3030

30

Appendix D: Servicing Your Boca ProductAppendix D: Servicing Your Boca Product

Appendix D: Servicing Your Boca Product........

........

.... 5757

5757

57

Appendix E: Warranty InformationAppendix E: Warranty Information

Appendix E: Warranty Information ..................................

..................................

................. 6060

6060

60

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HOWTHIS MANUAL IS ORGANIZED

Section One: IntroductionSection One: Introduction

Section One: Introduction. An overview of the features of your

modem.

Section TSection T

Section Two: Installation.wo: Installation.

wo: Installation.wo: Installation.

wo: Installation. This section provides physical

installation instructions (including how to connect the phone line),

and procedures for testing the connection. A section for Windows

95 and Windows NT users is also included.

Section Three: TSection Three: T

Section Three: Troubleshooting.roubleshooting.

roubleshooting.roubleshooting.

roubleshooting. This section provides a

description of the most common problems which may be

encountered during installation and operation along with possible

solutions.

AppendicesAppendices

Appendices. These include technical specifications, FCC and

DOC (Canada) compliance information as well as other regulatory

statements, and an AT command reference. Instructions for

servicing your product and warranty information are also

included.

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Boca 112K DynamicDuo Modem

Section One: IntrSection One: Intr

Section One: Introductionoduction

oductionoduction

oduction

The Boca 112K DynamicDuo Modem product provides an

integrated two line modem solution on a single plug-in ISA card.

Both modems can be operated independently on two analog

phone lines or “teamed” to provide a single data communications

link. The Boca 112K DynamicDuo Modem provides full fax/data

modem operation and is Plug-and-Play compatible.

Modem data rate speed is up to 56Kbps* on each telephone line

for a combined speed of up to 112Kbps on two lines. The modem

code is stored in flash memory, allowing upgrades as the 56K

standard evolves.

A comprehensive and versatile software package is supplied with

the product. The interface allows access to all the configuration

options for both modems, handles communication operations, and

can provide communication monitoring functions. The software is

compatible with Windows 95 and Windows NT.

MinimMinim

Minimum System Requirum System Requir

um System Requirum System Requir

um System Requirementsements

ementsements

ements

• IBM-compatible DX2/66 or higher system

• One available 16-bit ISA expansion slot

• Windows 95 or Windows NT

• 8MB system RAM

• 20MB free hard disk space for included software

• 2x or greater CD-ROM drive (software on CD)

*Actual speeds vary depending on line conditions. Due to FCC*Actual speeds vary depending on line conditions. Due to FCC

*Actual speeds vary depending on line conditions. Due to FCC

limitations, speeds in the U.S. are less than 56Kbps.limitations, speeds in the U.S. are less than 56Kbps.

limitations, speeds in the U.S. are less than 56Kbps.

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Boca 112K DynamicDuo Modem SampleBoca 112K DynamicDuo Modem Sample

Boca 112K DynamicDuo Modem Sample

ConfConf

Configuraigura

iguraigura

igurationtion

tiontion

tion

IntroductionIntroduction

Introduction

COUPLER*

SPLITTER*

* Available from your

local electronics

store

LINE 1: Access

your Internet

Service Provider

LINE 2: Fax to an

office location

2

3

1

4

56

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SectionSection

Section TT

TT

Tww

ww

wo: Installao: Installa

o: Installao: Installa

o: Installationtion

tiontion

tion

This section explains how to install the Boca 112K DynamicDuo

Modem in your computer. Review the contents of your package

to make all items are present. If any items are missing orIf any items are missing or

If any items are missing orIf any items are missing or

If any items are missing or

damaged, contact the dealer from whom you purchased thedamaged, contact the dealer from whom you purchased the

damaged, contact the dealer from whom you purchased the

modem for assistance. Also note that phone cable configurationmodem for assistance. Also note that phone cable configuration

modem for assistance. Also note that phone cable configuration

will vary for international settings.will vary for international settings.

will vary for international settings.

2.1 Installing the Modem2.1 Installing the Modem

2.1 Installing the Modem

NOTE: If your computer came with an internal modem, you must

physically remove it or disable it through your computer’s BIOS setup.

Consult your computer’s manual or manufacturer for specific

instructions.

1. Turn off your computer and disconnect any attached devices

and power cords. Remove any diskettes.

2. Remove the computer’s cover and locate an available 16-bit

expansion slot. Remove that expansion slot cover and save the

screw.

3. Remove the modem from its anti-static bag,

handling it by its edges and retaining bracket.

Be careful not to touch the edge connector or

any components on the card.

4. Carefully insert the modem into the

expansion slot you selected, applying

pressure to the upper board edge until it is

seated in the slot.

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5. Secure the modem into place by aligning its metal retaining

bracket with the hole in the top edge of the system’s rear panel.

Fasten the modem’s metal bracket with the screw removed

from step 2.

6. Disconnect your present phone cord(s) from the wall jack(s).

Plug the end of the phone cord that came with the modem into

the wall jack, and the other end into the jack with the symbol

( ) on the back of the modem. Plug the phone into the jack

with the symbol ( ) on the back of the modem.

NOTE: for both on-board modems to work, you must have one of

the following:

• An RJ-14 wall jack which is wired for two telephone lines

(independent numbers), as shown here:

InstallationInstallation

Installation

LINE 1 LINE 2

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Boca 112K DynamicDuo ModemBoca 112K DynamicDuo Modem

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Or

• Two physical RJ11 jacks (independent phone numbers). If the

latter is the case, you will need an RJ-11 splitter and coupler,

which should be connected as follows:

7. Replace the system cover and reconnect any detached devices

and power cords. Power up your computer. If you have a Plug-If you have a Plug-

If you have a Plug-If you have a Plug-

If you have a Plug-

and-Play computerand-Play computer

and-Play computer, the modem should be recognized at power-

up. If you do NOT have a Plug and Play computerIf you do NOT have a Plug and Play computer

If you do NOT have a Plug and Play computerIf you do NOT have a Plug and Play computer

If you do NOT have a Plug and Play computer, go on to

Modem SetupModem Setup

Modem Setup (Windows 95, page 13; Windows NT, page 15).

COUPLER*

SPLITTER*

* Available from your local

electronics store

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InstallationInstallation

Installation

2.2 Modem Setup f2.2 Modem Setup f

2.2 Modem Setup foror

oror

or WW

WW

Windoindo

indoindo

indows 95 Userws 95 User

ws 95 Userws 95 User

ws 95 Userss

ss

s

Plug and Play InstallaPlug and Play Installa

Plug and Play Installationtion

tiontion

tion

Please check the version of WPlease check the version of W

Please check the version of Windows 95 that you are using. Rightindows 95 that you are using. Right

indows 95 that you are using. Rightindows 95 that you are using. Right

indows 95 that you are using. Right

click on the “My Computer” icon on the desktop and selectclick on the “My Computer” icon on the desktop and select

click on the “My Computer” icon on the desktop and select

“Properties”. Under “System”, if your version reads“Properties”. Under “System”, if your version reads

“Properties”. Under “System”, if your version reads 4.00.950 B4.00.950 B

4.00.950 B4.00.950 B

4.00.950 B,,

,,

,

then you have OEM Service Release 2 of Wthen you have OEM Service Release 2 of W

then you have OEM Service Release 2 of Windows 95. In this case,indows 95. In this case,

indows 95. In this case,indows 95. In this case,

indows 95. In this case,

follow the instructions immediately belowfollow the instructions immediately below

follow the instructions immediately below. Otherwise, continue. Otherwise, continue

. Otherwise, continue. Otherwise, continue

. Otherwise, continue

with the next page.with the next page.

with the next page.

1. When Windows 95 detects new hardware, it starts the “Update“Update

“Update“Update

“Update

Device Driver WDevice Driver W

Device Driver Wizard”izard”

izard”izard”

izard”.

2. Insert the CD and click Next.Next.

Next.Next.

Next.

3. Complete the installation by clicking on the FinishFinish

FinishFinish

Finish button.

Congratulations! Setup is complete for Windows 95 users. Continue

with

2.4 Testing the Connection.

If you need to re-configure the board, click on Control PanelControl Panel

Control PanelControl Panel

Control Panel, then

SystemSystem

System, then Device ManagerDevice Manager

Device ManagerDevice Manager

Device Manager. The device description is under the

section, ModemModem

ModemModem

Modem. See your Windows 95 documentation on changing

properties of devices using the Device ManagerDevice Manager

Device ManagerDevice Manager

Device Manager. Congratulations!

Setup is complete for Windows 95 users. Continue with

2.4 Testing the

Connection.

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Boca 112K DynamicDuo ModemBoca 112K DynamicDuo Modem

Boca 112K DynamicDuo Modem

EarEar

Earlierlier

lierlier

lierVV

VV

Verer

erer

ersions ofsions of

sions ofsions of

sions of WW

WW

Windoindo

indoindo

indows 95ws 95

ws 95ws 95

ws 95

1. When the board is physically installed, start Windows 95 as you

normally would.

2. When Windows 95 detects new hardware, it displays the NewNew

NewNew

New

Hardware FoundHardware Found

Hardware Found dialog box. Here, you are asked what driver files

are associated with the new hardware.

3. From the choices given,

select Driver from diskDriver from disk

Driver from diskDriver from disk

Driver from disk

provided by hardwareprovided by hardware

provided by hardware

manufacturermanufacturer

manufacturer.

4. Windows 95 then displays the “Install from Disk”“Install from Disk”

“Install from Disk”“Install from Disk”

“Install from Disk” dialog box.

Here, you are asked for the location of the driver files.

5. Select Have DiskHave Disk

Have DiskHave Disk

Have Disk. Then:

a. Insert the CD

b. Type the path for the location of the drivers (D:\).

If you need to re-configure the board, click on Control PanelControl Panel

Control PanelControl Panel

Control Panel, then

SystemSystem

System, then Device ManagerDevice Manager

Device ManagerDevice Manager

Device Manager. The device description is under the

section, ModemModem

ModemModem

Modem. See your Windows 95 documentation on

changing properties of devices using the Device ManagerDevice Manager

Device ManagerDevice Manager

Device Manager.

Congratulations! Setup is complete for Windows 95 users.

Continue with

2.4 Testing the Connection.

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2.3 Modem Setup f2.3 Modem Setup f

2.3 Modem Setup foror

oror

or WW

WW

Windoindo

indoindo

indows NT Userws NT User

ws NT Userws NT User

ws NT Userss

ss

s

NOTE: you must have aNOTE: you must have a

NOTE: you must have a

Plug and Play systemPlug and Play system

Plug and Play system

for the modem to workfor the modem to work

for the modem to work

with Wwith W

with Windows NTindows NT

indows NTindows NT

indows NT..

..

.

WW

Windows NT installsindows NT installs

indows NT installsindows NT installs

indows NT installs

your modem as a COMyour modem as a COM

your modem as a COM

port.port.

port.

To determine your

available COM ports,

follow these steps:

1. Click on Control PanelControl Panel

Control PanelControl Panel

Control Panel and then PortsPorts

PortsPorts

Ports.

Note the assigned COM

ports.

2. Select CancelCancel

CancelCancel

Cancel, then shut down the computer.

3. Install the modem.

4. Restart Windows NT

5. Select StartStart

StartStart

Start, SettingsSettings

SettingsSettings

Settings,

Control Panel,Control Panel,

Control Panel, then

Ports.Ports.

Ports.

Note the additional

COM ports assigned to

the modem. Continue

with the next page.

BEFOREBEFORE

BEFORE

MODEM ISMODEM IS

MODEM IS

INSTINST

INSTALLED INALLED IN

ALLED INALLED IN

ALLED IN

SYSTEMSYSTEM

SYSTEM

AFTERAFTER

AFTER

MODEM ISMODEM IS

MODEM IS

INSTINST

INSTALLED INALLED IN

ALLED INALLED IN

ALLED IN

SYSTEMSYSTEM

SYSTEM

InstallationInstallation

Installation

3

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Boca 112K DynamicDuo ModemBoca 112K DynamicDuo Modem

Boca 112K DynamicDuo Modem

Example: Prior to installing the modem, you have COM1;Example: Prior to installing the modem, you have COM1;

Example: Prior to installing the modem, you have COM1;

after installing the modem you should see the new port toafter installing the modem you should see the new port to

after installing the modem you should see the new port to

which the modem was assigned (COM2 in the example onwhich the modem was assigned (COM2 in the example on

which the modem was assigned (COM2 in the example on

the previous page).the previous page).

the previous page).

If no additional COM ports are displayed, make sure yourIf no additional COM ports are displayed, make sure your

If no additional COM ports are displayed, make sure your

system has a Plug and Play BIOS. If yes, please contact yoursystem has a Plug and Play BIOS. If yes, please contact your

system has a Plug and Play BIOS. If yes, please contact your

dealer for assistance.dealer for assistance.

dealer for assistance. Select CancelCancel

CancelCancel

Cancel to exit the Ports dialog box.

6. Double-click on the ModemsModems

ModemsModems

Modems icon.

7. At the Install New ModemInstall New Modem

Install New ModemInstall New Modem

Install New Modem screen, check the box in front of

“Don’“Don’

“Don’t Detect my Modem; I Wt Detect my Modem; I W

t Detect my Modem; I Wt Detect my Modem; I W

t Detect my Modem; I Will Select it from a List”ill Select it from a List”

ill Select it from a List”ill Select it from a List”

ill Select it from a List”.

8. Select NextNext

NextNext

Next, then Have DiskHave Disk

Have DiskHave Disk

Have Disk. Insert the Modem Drivers

Installation CD or Disk into your diskette drive.

9. Type D:\ (if your CD-ROM drive is other than D:, substitute the

appropriate letter) or A:\, then click OKOK

OKOK

OK.

10. Highlight and select the modem (for the first line) which

corresponds to the one you purchased, then NextNext

NextNext

Next.

11. Select the COM ports to which the modem was assigned. Then

select NextNext

NextNext

Next, then FinishFinish

FinishFinish

Finish. Repeat steps 6-10 for Line 2

Congratulations! Setup is complete for Windows NT.

The modem is now ready to be tested and operated. Continue

with

2.4 Testing the Connection

.

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2.42.4

2.4 TT

TT

Testing the Connectionesting the Connection

esting the Connectionesting the Connection

esting the Connection

1. Install and start your communications software. Place it in

terminal mode and select the modem you wish to test. Refer to

the program’s documentation if you require assistance. If youIf you

If youIf you

If you

are not in terminal mode, Aare not in terminal mode, A

are not in terminal mode, AT commands typed in at the DOST commands typed in at the DOS

T commands typed in at the DOST commands typed in at the DOS

T commands typed in at the DOS

prompt will result in a “Bad Command or File Name”prompt will result in a “Bad Command or File Name”

prompt will result in a “Bad Command or File Name”

messagemessage

message.

2. Type in AA

AA

ATZTZ

TZTZ

TZ followed by ENTER and the modem will respond

with OK after a few seconds. If the modem does not respond

OK, refer to

Troubleshooting (Section Three)

.

3. Type AA

AA

ATH1TH1

TH1TH1

TH1 followed by ENTER and you should hear a dial

tone from the modem speaker. To adjust speaker volume up,

refer to your communications software, or type the AA

AA

ATL3TL3

TL3TL3

TL3

command the press ENTER.

4. Type AA

AA

ATHTH

THTH

TH followed by ENTER to put the modem “on-hook”.

This confirms that the modem has been successfully installed

into the computer. Repeat steps 1-4 to test the Line 2 modem.

5. Your modem is now ready for use. Continue now with your

communications software and documentation.

InstallationInstallation

Installation

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Boca 112K DynamicDuo ModemBoca 112K DynamicDuo Modem

Boca 112K DynamicDuo Modem

SectionSection

Section ThrThr

ThrThr

Three:ee:

ee:ee:

ee: TT

TT

Trr

rr

roubleshootingoubleshooting

oubleshootingoubleshooting

oubleshooting

This section lists common problems that may be encountered and

their possible solutions.

nVerify that you have cables plugged in

correctly as instructed in Section Two.

nConnect a telephone set directly to the

wall jack and check for a dial tone. If

no dial tone is heard, the telephone

line is not working. Contact the

telephone company.

nCheck the connections between the

modem and the computer, and the

modem and the telephone line.

nMake sure the telephone jack is

operational as described above.

nThe telephone line may be in use at a

different extension.

nPerhaps the number you have called

does not reach a modem, or the

remote modem may not be set up to

respond.

nThere may be a conflicting port

address. Re-configure the modem’s

COM port address

SYMPTOM POSSIBLE REMEDY

No dial tone.No dial tone.

No dial tone.

Modem will notModem will not

Modem will not

connect toconnect to

connect to

another modem.another modem.

another modem.

Modem does notModem does not

Modem does not

respondrespond

respond

9346.p65 11/20/97, 9:33 AM18

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n Verify that the communication software is

set to the same communications port

where your modem is attached (e.g.,

COM1, COM2). Check IRQ settings in the

Control Panel.

nTry typing AT&F to reset the modem to its

factory defaults.

nMove the modem to another serial port

(

power down the host computer firstpower down the host computer first

power down the host computer first

). If

the modem works after being moved, it’s

likely the problem is not with the modem.

nMake sure the echo command is set to

ON. Change to echo with the ATE

command.

nMake sure the local (yours) and remote

modem configurations are compatible.

nVerify that both modems are operating

with the same settings, speed, data, parity,

and stop bits.

nThe software may not be set for correct

terminal emulation. Configure software to

correct type. ANSI terminal emulation is

most commonly used.

SYMPTOM POSSIBLE REMEDY

Modem doesModem does

Modem does

not respondnot respond

not respond

(contd)(contd)

(contd)

AA

AT commandsT commands

T commandsT commands

T commands

not visible.not visible.

not visible.

After dataAfter data

After data

connection isconnection is

connection is

established,established,

established,

data isdata is

data is

displayed asdisplayed as

displayed as

garbledgarbled

garbled

characters.characters.

characters.

TroubleshootingTroubleshooting

Troubleshooting

9346.p65 11/20/97, 9:33 AM19

2020

20

Boca 112K DynamicDuo ModemBoca 112K DynamicDuo Modem

Boca 112K DynamicDuo Modem

SYMPTOM POSSIBLE REMEDY

nPower down your system and re-run

your communications software.

Check software settings.

nExit the communications program

and restart it.

nYou may not have enabled auto-

answer. Use your software to enable

this function.

nIf you have an answering machine, it

may be answering before the modem

can. Turn the answering machine off,

or, use the software to set auto-

answer to respond in fewer rings

than the answering machine.

nCheck for any loose connections.

nRe-try the connection by dialing the

number several times. You may be

experiencing line interference.

nAn incoming call may have broken

the connection if a call-waiting

feature was enabled. Disable call-

waiting and try again.

Garbled charactersGarbled characters

Garbled characters

(contd)(contd)

(contd)

The modem doesThe modem does

The modem does

not answer annot answer an

not answer an

incoming call.incoming call.

incoming call.

ModemModem

Modem

disconnects whiledisconnects while

disconnects while

on-line.on-line.

on-line.

9346.p65 11/20/97, 9:33 AM20

Boca 112k DynamicDuo Operating and maintenance manual

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