Zoom MAC User manual

QUICK
START
and
REFERENCE GUIDE
for
MAC

NOTICE
This document contains proprietary information protected
by copyright, and this Quick Start and Reference Guide
and all the accompanying hardware are copyrighted. All
rights are reserved. No part of this document may be
photocopied or reproduced by mechanical, electronic, or
other means in any form, except for the personal use of
the owner.
The manufacturer does not warrant that the hardware will
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Although the hardware has been tested, the manufacturer
makes no warranty and representation, either implied or
expressed, with respect to the hardware and the docu-
mentation, quality, performance, merchantability, or fit-
ness for a particular purpose. The manufacturer reserves
the right to make changes to the hardware and Quick
Start and Reference Guide content without obligation to
notify any person or organization of the revision or
change.
All brand and product names are the trademarks of their
respective owners.
© Copyright 1998
All rights reserved.

Contents
Introduction ............................................................... 5
What You Need to Use Your Faxmodem................ 5
Documentation Conventions ................................ 6
Chapter 1 Installing the Faxmodem........................... 8
Chapter 2 Using the Faxmodem ............................... 12
Using Other Voice, Fax, and Data
Communications Software ................................. 12
Using Initialization Strings................................. 12
Using AT Commands ......................................... 14
Returning to the Factory Settings....................... 15
Chapter 3 Solving Common Problems ...................... 16
General Troubleshooting.................................... 17
Echo Troubleshooting ........................................ 20
Dial Troubleshooting.......................................... 21
Connection Troubleshooting............................... 21
Appendix A: Product Summary ................................. 27
Appendix B: Product Specifications .......................... 29
Appendix C: Regulatory Information......................... 30
FCC Part 68 Telecommunications
Statement ......................................................... 30
Industry Canada Attachment ............................. 31
Canadian Emissions Statement.......................... 31
Important Information.............................................. 32

Introduction 5
Introduction
Congratulations! You have purchased a powerful, flexible
tool that will help you manage your communications, work
more efficiently, and present a polished and professional
image at home or the office.
This product includes high-speed data and fax capability,
digital answering machine, and multi-user voice mail.
This manual is an installation, troubleshooting, and refer-
ence guide. Once you have successfully installed the mo-
dem in your Apple Macintosh computer, the software con-
trols virtually all access to the fax, data, voice mail, and
other product features.
While many data communications features can be con-
trolled using AT commands and S registers, there is rarely
any reason to do so. Summaries of AT commands and S
registers can be found on the Web site www.modems.com.
This quick start and reference guide is organized as fol-
lows:
Introduction (this section) lists the items you need to use
the modem.
Installing the Faxmodem (Chapter 1) explains how to
attach the modem to your computer and tells what the
indicator lights mean.
Using the Faxmodem (Chapter 2) provides tips for setting
up your software.
Solving Common Problems (Chapter 3) provides infor-
mation to assist you if you have problems.
The Appendixes provide a product description and speci-
fications and give details about regulatory compliance.
What You Need to Use Your Faxmodem
Make sure that you have received the following items:
• Your faxmodem hardware (referred to in this manual
as either a “modem” or “faxmodem”)

6Quick Start and Reference Guide
• Telephone cord to connect your faxmodem to the tele-
phone line (wall jack)
• AC power adapter
• A Zoom Link CD-ROM disc with communications and
other software
• Software instructions
• Packet of online service offers
For some modems, you may also have received:
• Microphone and speaker or earphone
To use this faxmodem, you also need the following items.
• A Macintosh with an available serial port. Minimum
requirements:
, 68040 or faster Macintosh
, Macintosh OS 7.1 or later
, 8 MB RAM
, Hard drive with at least 10 MB available
• An electrical outlet to connect the power adapter
• Mac-to-modem serial cable (may be included with the
product)
• A telephone line connection (typically, a wall-mounted
telephone jack or socket) where you normally would
plug in a single-line telephone
Documentation Conventions
• In this manual we may use the terms “faxmodem,”
“modem,” and “product” interchangeably to refer to your
faxmodem.
• Commands and command examples described in this
guide appear in bold type. For example: To reset the
modem, type ATZ and press Enter.
We occasionally insert spaces between commands to make
a command line easier to read. You can type the command

Introduction 7
line with or without spaces between commands as long as
the command line does not exceed forty (40) characters.
• “0” in a command line indicates the numeral zero, not
the letter O.

8Quick Start and Reference Guide
Chapter 1 Installing the Faxmodem
Your computer should be located near a telephone jack.
CAUTION
Before you start, touch a grounded metal surface other
than your computer to discharge static electricity. Static
electricity can damage computer and modem components.
1Locate your faxmodem’s serial number on the bot-
tom of the case. Write the number in the Impor-
tant Information section on page 32.
2Turn off the computer.
3Connect the faxmodem-to-computer cable. Plug one
end of the cable into the wide connector on the
back of the faxmodem. Plug the other end into the
serial port in the back of your computer.
4Connect the telephone cord. Plug one end of the
cord into the PHONE LINE jack on the back of the
faxmodem. Plug the other end into the telephone
line connection (typically mounted on a wall), just
as you would a standard telephone.
5Connect the power adapter. Plug one end of the
power adapter into the back of the faxmodem. Plug
the other end into an available electrical outlet. You
can leave the power adapter plugged in when you
are not using the faxmodem.
6Connect telephone, as shown in the following dia-
gram. The faxmodem works with or without a tele-
phone connected to it. If your faxmodem came with
a speaker or earphone and microphone, plug them
into the jacks on the back of the faxmodem, as
shown in the illustration.

Chapter 1 Installing the Faxmodem 9
TELEPHONE
(OPTIONAL)
TELEPHONE LINE
COMPUTER
POWER
CONNECTION
MIC
SPK
Not available
on all models
7Turn the computer back on.
8Turn the faxmodem on by pushing in the power
button on the front, as shown in the following dia-
gram.
The modem performs a brief self-test.

10 Quick Start and Reference Guide
After the self-test, the front panel status lights or LEDs
show the faxmodem’s current state. The MR light should
be on, which shows the faxmodem is ready for use.
Now you can install your fax and data communications
software. Follow the instructions provided with the soft-
ware.
Summary of the Indicator Lights
Light Description
OH (Off Hook) Lights when the faxmodem is off hook.
AA (Auto-Answer)* Lights when Auto-Answer is activated. Blinks on
and off when detecting incoming ring.
RI (Ring Indicate)* Blinks on and off when detecting incoming ring.
AA (Auto-Answer) Blinks on or off when detecting incoming ring.
Lights if software uses the modem’s S register
0 to control auto-answer and sets S0 to 1-255
rings.
RD (Receive Data) Light flashes when data is sent from the faxmo-
dem to your computer or other serial device. At
high speeds light may appear on.
TD (Transmit Data) Flashes whenever data or commands are
transmitted from the serial port of your com-
puter or other device to the faxmodem.
TR (Terminal Ready) Lights when the terminal is ready to send or
receive data.
CD (Carrier Detect) Lights when the Data Carrier Detect (DCD) sig-
nal from the faxmodem to the computer is on.
CS (Clear to Send) Lights when the faxmodem can accept data
from the computer. The light turns off when
the faxmodem is set for flow control (AT com-
mand &K3) and the faxmodem’s data buffer is
full, preventing data flow from the computer.
EC
(Error Correction)
Lights when sending data using V.42 or MNP 4
error correction.
DC
(Data Compression)
Lights when using V.42bis or MNP 5 data com-
pression.
V.34 Lights when operating in V.34 mode.

Chapter 1 Installing the Faxmodem 11
56K*Lights when communicating in V.90 or
K56flex™ mode.
FAX Lights when fax connection has been made to a
remote faxmodem.
MSG Lights when faxes are waiting if your software
supports this feature.
MR (Modem Ready) Lights when the faxmodem is turned on.
Flashes when the faxmodem is in self-test
mode.
* Not available on all models

12 Quick Start and Reference Guide
Chapter 2 Using the Faxmodem
This chapter provides tips for setting up your communica-
tions software and using the modem. It also describes ad-
vanced telephony features.
See the software instructions included with your soft-
ware for information about how to install and use the
programs included with this product.
After you set up your software, you are ready to start us-
ing your faxmodem. The best way to get familiar with your
software is to learn by doing.
• Try dialing a bulletin board or online service, or try
calling a friend with a modem and transferring a file.
• Send a fax and have someone send one back to you.
Using Other Voice, Fax, and Data Communica-
tions Software
If you have any difficulties installing or setting up other
communications software, it may be helpful to read Tips
for Selecting Setup Options on the next page.
Software programs are designed as a simple, user-friendly
interface that makes it easy to use the many features your
faxmodem offers. The software must first identify the mo-
dem and its special capabilities. Many software programs
identify the product automatically and configure them-
selves for the correct operating settings.
Installing most software takes you through a series of
setup options. With virtually all commercially available
software, selecting the correct description of the product
during installation means that you can accept all of the
default settings that the software suggests.
Using Initialization Strings
An initialization string is a group of AT command settings
that are sent to the faxmodem as soon as you start up the
software. The software determines which commands go

Chapter 2 Using the Faxmodem 13
into the initialization string based on the device you select
during installation. The commands remain in effect
throughout the communications session, unless the soft-
ware sends other commands to override them.
The software uses other AT command strings for other
purposes. For example, when you make a telephone call,
the software inserts AT commands in a dial string before
the telephone number you are calling. You can typically
use the AT command strings which are provided with the
software.
It is sometimes necessary to add other AT commands to
the strings as suggested in the next section, Tips for Se-
lecting Setup Options, and in Chapter 3. For a table of
AT commands, go to the Web site at www.modems.com.
Tips for Selecting Setup Options
In setting up some older software programs, you may be
asked to enter certain information. Most programs have
default settings that are correct for use with this modem,
and there is no need to change them. You should be aware
of the following items:
• If you are asked to select the “modem type” from a
menu and you do not see this modem listed by name
on the menu, select the most descriptive name, or
keywords, such as Hayes-compatible V.34 modem
(with or without a specific speed) or the generic Class
1 Modem. The more generic the type you choose, the
less likely that the software lets you use some of the
modem’s advanced features. It still performs basic
communications and fax functions.
•• In the dialing directory, all entries should be set to
115,200 bps (115.2K baud). All communications be-
tween the computer and the modem take place at
115,200 bps, independent of the modem-to-modem
speed. The modem auto-negotiates the highest speed
connection between itself and the other modem.
• If there is a section of your software called “Terminal
Settings,” make sure that Hardware Flow Control
(RTS/CTS)is ON (or YES). This is necessary in order
for V.42bis file transfers to work.

14 Quick Start and Reference Guide
•• Set auto baud detect to OFF (or NO).
• Some programs ask “Send init if CD high?”, which
you should set to YES. Otherwise the modem may not
receive the proper initialization string.
• If your software suggests an initialization string for
this modem, you should use it. If this modem is not
listed by your software and no initialization string is
suggested, use the following initialization string:
AT &F
Note: If you are familiar with AT commands and you
save any settings in the modem’s nonvolatile
memory using the modem’s &W command, re-
move the &F from the initialization string. Oth-
erwise the contents of the initialization string
overrides the saved settings.
•• If the software does not provide a dial string, use
ATDT if your telephone line uses tone dialing (as most
do), or ATDP if the line uses pulse dialing.
•• If your telephone service includes Call Waiting that
you can temporarily suspend by pressing *70, include
ATDT*70, in the dial string. (Note: Be sure to type the
comma). For pulse dialing, use ATDT1170 at the be-
ginning of the dial string. For more information about
handling Call Waiting, contact your telephone com-
pany.
• If your fax software gives you the option of selecting
Class 1 or Class 2 fax drivers, select Class 2 if your
modem supports it. Class 2 may provide slightly faster
faxing. Otherwise select Class 1.
Using AT Commands
While using your software and modem you rarely, if ever,
need to send AT commands directly to the modem. If you
need to enter AT commands, you must do so from the
software’s terminal mode.

Chapter 2 Using the Faxmodem 15
Using AT commands in terminal mode
1. Start your data communications program.
2. Change to terminal mode (also called command, local,
direct, or dumb mode).
3. Type in the AT command you need and press Enter.
When you finish, you can return to the data communica-
tions program’s standard user interface. See the program’s
documentation if you need help.
Returning to the Factory Settings
To return to the factory default settings for the modem:
In terminal mode, type AT &F and press Enter.
See the Web site at www.modems.com.

16 Quick Start and Reference Guide
Chapter 3 Solving Common Problems
If your modem is not working, please read this chapter
and the communications software documentation care-
fully.
For installation problems, see Chapter 1 Installation.
This chapter covers four categories: General trouble-
shooting, echo troubleshooting, dial troubleshooting, and
connection troubleshooting.
For help with this problem… See
page…
The software cannot find the modem and the mo-
dem does not respond to AT commands.
17
The modem takes too long to hang up at the end of
a telephone call.
17
The modem fails to execute an AT command line. 19
No response appears after executing a command. 18
You receive an ERROR response. 18
The modem goes off-hook and seizes the telephone
line.
18
The modem does not auto-answer. 19
You encounter other communications problems. 19
You are uncertain about the DTR and DCD settings
referred to in your software manual.
19
The modem speaker volume is too high or too low. 20
Each character you type appears twice or no char-
acters appear at all during data mode.
20
The modem does not automatically dial a call when
you send a Dial command line.
21
The modem can connect to some modems, but not to
others.
21
Continued on the next page…

Chapter 3 Solving Common Problems 17
For help with this problem… See
page…
The modem disconnects while communicating
with a remote system.
24
The modem does not make a data connection. 25
You receive bursts of errors occasionally, but
otherwise data quality is good.
25
Random errors occur in transmitted data. 25
Data is missing. 25
The quality of the voice messages needs to be
improved.
26
Your faxmodem is not communicating data as
fast as you expect.
26
General Troubleshooting
Problem: The software cannot find the modem and the
modem does not respond to AT commands.
(The following comments apply to many
other problems as well.)
Solution: The most common error with modems is that
the communications software is not configured
for the same serial port as the modem. Check
which serial port the modem is using. Make
sure that the software’s serial port setting
matches the modem’s serial port setting.
Problem: The modem takes too long to hang up at the
end of a telephone call.
Solution: Your modem may not be receiving the required
initialization string, which should include the
&C1 setting, from your software.
In your software, make sure you have selected
your modem. If not, select it and exit and restart
your communications software. If you still have
problems, add &C1 to the initialization string,
then exit and restart the software. (See Tips for
Selecting Setup Options in Chapter 2.)

18 Quick Start and Reference Guide
Problem: You type an AT command line and press En-
ter, but your modem fails to execute the
command line.
Solution: Be sure you type AT at the beginning of the
command line.
Make sure the communications software is
configured for the same serial port as your mo-
dem.
Be sure your modem is in terminal mode and
not in data mode when you type the command.
Problem: No response appears after executing a com-
mand.
Solution: If you typed a command but did not receive an
OK response from your modem:
Make sure the communications software and
modem are configured for the same serial port.
The E0 and Q1 commands may be in effect,
disabling echo and responses. Verify this with
the &V command. To enable echo and re-
sponses, type AT E1 Q0 and press Enter.
Be sure your modem is in terminal mode and
not in data mode when you type the command.
Problem: You receive an ERROR response when trying
to execute a command.
Solution: Check whether you typed the command cor-
rectly.
Check whether the command is a valid one.
Be sure your command line contains fewer
than 40 characters.
Problem: Your modem goes off-hook and seizes the
telephone line when there is an incoming
voice call that you want to take on your
telephone.
Solution: The modem is configured for auto-answer. Turn
off auto-answer in your software.

Chapter 3 Solving Common Problems 19
Problem: Modem does not auto-answer.
Solution: Your modem may not be configured to auto-
matically answer incoming calls. If you want
your fax or data software to answer calls, be
sure you have selected this option in your soft-
ware.
Problem: You encounter other communications prob-
lems with your modem.
Solution: Check that your communications software has
been set up properly. Recheck the initialization
string and dial string specified in your software
manual. Remember that commands in the ini-
tialization string are sent to the modem each
time you start your software and override the
settings stored in the modem’s nonvolatile
memory.
Problem: You are uncertain about the Data Terminal
Ready (DTR)and Data Carrier Detect (DCD)
settings referred to in your software manual.
Solution: If your software requires that your faxmodem
ignore DTR (which is the faxmodem’s default
setting) and you are using the &D2 command
in the faxmodem’s initialization string or have
stored it in nonvolatile memory, your faxmodem
does not work properly. If this is the case, store
the &D0 command in nonvolatile memory.
Type: AT &D0 &W &Y0 and press Enter.
Make sure that your faxmodem initialization
string does not contain &D2.
If your software requires that your faxmodem
followDTR, the previous considerations apply
in reverse. If you are having problems, include
&D2 in the faxmodem initialization string.
If your software requires that DCD always be
forced ON (which is the faxmodem’s default
setting), and you are using the &C1 command
in the faxmodem initialization string or have
stored it in nonvolatile memory, your faxmodem
does not work properly. If this is the case, store
the &C0 command in nonvolatile memory.

20 Quick Start and Reference Guide
Type: AT &C0 &W &Y0 and press Enter.
Also make sure that the faxmodem initializa-
tion string does not include &C1.
If your software requires that Data Carrier De-
tect followcarrier, the above considerations
apply in reverse. If you are having problems,
include &C1 in the faxmodem initialization
string.
Problem: The modem speaker volume is too low or too
high.
Solution: If the software allows you to control the
speaker, make sure the speaker is enabled and
set to a comfortable volume.
If the software does not have speaker settings,
add one of the following AT commands to the
initialization string:
L1 for low volume
L2 for medium volume
L3 for highest volume
M0 to turn the speaker off entirely
For example, if you want the volume low and
the software uses the initialization string
AT&F,change it to AT&FL1.
Echo Troubleshooting
Problem: Each character you type either appears
twice or no characters appear at all during
data mode.
Solution: Make sure that your software is in full-duplex
mode when you make a telephone call. If the
remote modem is not also in full-duplex mode,
change to terminal mode, type AT E0,and
press Enter. Then turn on your communica-
tions software’s local echo. Your software now
echoes commands during terminal mode and
any typing performed during data mode.