Zypcom Z34-SC User manual

Zypcom
Data/Fax/Voice Modems
User’s Guide
Z34-SC
Z34-PC
Part number: 18008-509D
November 1997

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Copyright 1997 by Zypcom, Inc.
Document No. 18008-509D
November 1997
This manual is published by Zypcom, Inc. who reserves the right to
make changes and improvements in the product(s) at any time.
Zypcom also reserves the right to revise this manual at any time and
without notice.
All rights reserved. No part of this publication may be transcribed,
reproduced, or stored in electronic media, translated into any
language or computer code, or be transmitted in any form whatsoever
without the prior consent of Zypcom, Inc.
All versions, titles, trademarks, compatibility claims, etc. of hardware
and software products mentioned in this publication are the sole
responsibility and property of the respective vendors. Zypcom makes
no endorsement of any vendor’s product, nor claims responsibility for
the operation and accuracy of said product.
____________________________________________________________
Zypcom, SE-Series, SX-Series, C-Series, L-Series, Z32-Series, Z34-
Series, Z32, Z34, Z32b-SE, Z32t-SE, Z34-SE, Z32b-SX, Z32t-SX,
Z34-SX, Z34-SC, Z34-PC, Z34-SL, Z34-PL, Z32CH, Z32CH-2, Z32CH-
48, Z32CH-48-2, Z3200, Z3200E, and Zscript are trademarks of
Zypcom, Inc.
Carbon Copy and MNP are trademarks of Microcom, Inc.
Hayes is a trademark of Hayes Microcomputer Products, Inc.
IBM is a registered trademark of International Business Machines.
MS-DOS, Windows 3.1 and Windows 95 are registered trademarks of
Microsoft Corporation.
pcANYWHERE is a trademark of Symantec.
PROCOMM is a trademark of DataStorm Technologies, Inc.
QModem and QModem SST are trademarks of Mustang Software Inc.
UNIX is a registered trademark of Unix System Laboratories.

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Contents
Chapter 1 Introduction
Description .............................................................. 1-1
Features .................................................................. 1-2
System Requirements .............................................. 1-3
Modes of Operation .................................................. 1-3
Modem Interface ...................................................... 1-7
Check List................................................................ 1-8
Chapter 2 Installation
Introduction............................................................. 2-1
Z34-PC COM Port & IRQ Settings or
Plug-and-Play Settings ............................................. 2-2
Hardware Installation Steps ..................................... 2-4
Additional Installation Information ........................... 2-7
Windows 95 Modem Setup for Z34-PC and
Z34-SC .................................................................... 2-8
Using HyperTerminal with Windows 95 .................. 2-12
Installation Problems ............................................. 2-13
Windows 95 IRQ Conflicts ...................................... 2-14
Using the Windows 95 Computer
Properties Screen ................................................... 2-15
Using SuperVoice Software With Your
Modem...................................................................2-17
Using Other Communication Software
With Your Modem .................................................. 2-19

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Chapter 3 AT Commands
Introduction............................................................. 3-1
Functional Modem States......................................... 3-2
Basics of the AT Command Set................................. 3-4
AT Command Summary ........................................... 3-6
AT Command Descriptions .......................................3-7
AT Commands for Data Mode ................................... 3-9
Error Control and Compression Commands ........... 3-24
Chapter 4 Troubleshooting
General.................................................................... 4-1
Basic Communication Problems ............................... 4-2
Other Common Problems ......................................... 4-6
Other Frequently Encountered Problems ................ 4-15
Appendix A: Specifications.......................................................A-1
B: IS-101 Voice Command........................................B-1
C: Fax Commands....................................................C-1
D: Modem Terms..................................................... D-1
E: Removing Old Windows 95 Drivers.......................E-1
F: Downloading Firmware ........................................F-1

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About This Manual
Shown below is a chronological listing of revisions to
this manual. The revision sequence, date, and synopsis
of revised materials are included to provide the reader
with a comprehensive manual history.
REVISION NUMBER DATE DESCRIPTION
18008-507A 01/97 1st Edition
18008-509A 04/97 2nd Edition
18008-509B 04/97 3rd Edition
18008-509C 05/97 4th Edition
18008-509D 11/97 5th Edition
Zypcom welcomes your comments concerning this
manual. Although every effort has been made to keep it
free of errors, some do occasionally occur. When
reporting a specific problem or error, please describe it
briefly and include the manual name, the document
revision number, the paragraph or figure number, and
the page number.
Mail, phone in, or fax your comments to:
Zypcom, Inc.
2301 Industrial Parkway, Bldg. 7
Hayward, CA 94545
Phone: [phone]
Fax: [phone]
Printed in U.S.A.

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Warranty and Limitation of Liability
Zypcom, Inc. warrants that its products will perform in
accordance with Zypcom’s published specifications (or
the specification agreed to, in writing, by the Buyer and
Zypcom, and made a part of the sales contract) for a
period of twenty-four (24) months from the date of
original shipment.
During this warranty period, Zypcom will repair any
equipment that it determines is defective. The Buyer
will return the defective equipment to Zypcom, and will
prepay transportation charges. A repair order (RO)
number must accompany all returned equipment (see
“Service Information” later in this section). Zypcom will
repair and return the equipment to the Buyer, and will
prepay transportation charges for destinations in the
continental United States.
This warranty shall not apply to damage resulting from
abuse, negligence, an accident, a natural disaster (flood,
earthquake, etc.), an act of nature (lightening, wind,
etc.), loss, or damage in transit. The warranty shall be
voided should the Buyer attempt any repairs or
alterations without prior written permission of Zypcom,
Inc.
ZYPCOM MAKES NO OTHER WARRANTY, EXPRESSED
OR IMPLIED, AND DISCLAIMS ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.

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THE BUYER AND ZYPCOM AGREE THAT THE SOLE AND
EXCLUSIVE REMEDIES FOR BREACH OF ANY WAR-
RANTY CONCERNING THE GOODS SHALL BE REPAIR
OR REPLACEMENT OF DEFECTIVE PARTS UPON THE
TERMS ABOVE DESCRIBED OR, AT ZYPCOM’S OPTION,
REFUND OF THE PURCHASE PRICE. ZYPCOM SHALL
NOT BE LIABLE FOR CONTINGENT OR CONSEQUENTIAL
DAMAGES TO PERSONS OR PROPERTY, AND ITS SOLE
LIABILITY IS AS SET FORTH ABOVE.
Any action by the Buyer for any alleged breach of the
warranty set forth herein shall be brought to the
attention of Zypcom, Inc. by the Buyer within the
warranty period, but not later than thirty (30) days after
the alleged breach.
THIS STATEMENT OF WARRANTY AND LIMITATION OF
LIABILITY IS A COMPLETE AND EXCLUSIVE STATEMENT
OF ALL WARRANTY AND LIABILITY REPRESENTATIONS
OF ZYPCOM, INC. It may not be varied, supplemented,
qualified or interpreted by any prior dealings between
the parties, by any usage of the trade, or upon the face
or reverse of any form to which this is attached or is a
part of, nor may it be modified by any agent, employee
or representative of Zypcom unless such modification or
representation is made in writing and signed by an
officer of Zypcom, Inc.
Repairs and/or replacements under the terms of this
warranty SHALL NOT EXTEND THE WARRANTY LIFE OF
THE ORIGINAL EQUIPMENT SUPPLIED. After this
warranty has expired, service can be purchased directly
from Zypcom, Inc.

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Service Information
In the event of malfunction or other indication of
product failure, please follow this procedure:
1. Call Zypcom Technical Support at [phone],
Monday through Friday from 8:00 A.M. to 5:00 P.M.
Pacific time (excluding holidays).
2. Your support representative will ask you to perform
a few easy tests. If the tests and other remedies do not
solve the problem, you will be issued a Repair Order
(RO) number.
3. Return the unit in the original box or similar
protective shipping container and send it prepaid to:
Repair Department
Reference: RO Number _______
Zypcom, Inc.
2301 Industrial Parkway West, Bldg. 7
Hayward, CA 94545
Please mark the shipping container on the outside with
the RO number and enclose a written description of the
problem with the defective unit.
Terms For warranty repair replacements, the customer pays
freight charges incurred for sending the defective
modem to Zypcom. Zypcom pays freight charges
(destinations in the continental United States only) for
sending replacement units. Replacements and/or
repairs are performed at no charge to the customer.

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For non-warranty repairs, charges vary according to the
specific model of the modem being repaired. Repair
charges are estimated before an RO number is issued.
Customer prepays all freight and repair charges by
means of credit card or C.O.D. terms. Zypcom can
accept prepayment by company check.
FCC Part 15: Radio/Television Interference
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against 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 harmful
interference to radio communications. However, there
is no guarantee that interference will not occur in a
particular installation. If this equipment does cause
harmful interference to radio or television reception,
which can be determined by turning the equipment on,
the user is encouraged to try to correct the interference
by one or more of the following measures:
qReorient or relocate the receiving antenna.
qIncrease the separation between the equipment
and the receiver.
qConnect the equipment into an outlet on a
circuit different from that to which the receiver
is connected.
qConsult the dealer or an experienced radio/TV
technician for help.

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CAUTION: Changes or modifications not expressly
approved by the party responsible for compliance
could void the user’s authority to operate the
equipment.
CAUTION: Shielded interface cables, if any, must
be used in order to comply with emissions limits.
Part 68: Telephone Connection
This equipment complies with Part 68 of the FCC rules.
This equipment has a label that contains, among other
things, the FCC Registration Number and Ringer
Equivalence Number (REN). Upon request, provide the
above information to your telephone company.
The REN value is useful to determine the number of
devices that may be connected to your telephone line
and that will still ring when your telephone number is
called. In most areas, but not all, the sum of the RENs
of all the devices you may connect to one line should
not exceed five (5.0). To be certain of the number of
devices you may connect to your line, as determined by
the REN, you should contact your local telephone
company to determine the maximum REN for your
calling area.
If this equipment causes harm to the telephone network
equipment, the telephone company may discontinue
your service temporarily. If possible, they will notify you
in advance. However, if advance notification is not
possible, you will be notified as soon as possible. You
will be informed of your right to file a complaint with the
FCC.

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Your telephone company may make changes in its
facilities, equipment, operations or procedures that
would affect the proper functioning of your equipment.
If they do, you will be notified in advance to give you an
opportunity to maintain uninterrupted telephone
service.
If you experience trouble with this equipment, please
contact Zypcom technical support. The telephone
company may ask that you disconnect this equipment
from the network until the problem has been corrected
or until you are sure that the equipment is not
malfunctioning.
This equipment may not be used on coin service
provided by the telephone company. Connection to
party lines is subject to state tariffs.
Statement of Fax Branding
The Telephone Consumer Protection Act of 1991 makes
it unlawful for any person to use a computer or other
electronic device to send any message via a telephone
fax machine unless the message clearly contains a
margin at the top or bottom of each transmitted page or
on the first page of the transmission; the date and time
the message is sent; an identification of the business,
other entity, or individual sending the message; and the
telephone number of the sending machine, business,
other entity, or individual.

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Canadian Department of Communications—
Requirements For End Users
The Canadian Department of Communications label
identifies certified equipment. This certification means
that the equipment meets certain telecommunications
network requirements. The Department does not
guarantee the equipment will operate to the user’s
satisfaction.
Before installing this equipment, the user should ensure
that connection to the line is allowed by the local
telecommunications company. The equipment must
also be installed by using an acceptable method of
connection. In some cases, the company’s inside
wiring, associated with a single-line individual service,
may be extended by means of a telephone extension
cord. Compliance with the above conditions may not
prevent degradation of service in certain situations.
Equipment repairs should be made by an authorized
Canadian maintenance facility designated by Zypcom,
Inc. Any repairs or alterations made by the user may
cause the telecommunications company to request
disconnection.
The electrical ground connections of the power utility,
telephone lines, and internal metallic water pipe system,
if present, should be connected together. This
precaution may be particularly important in rural areas.
CAUTION: Users should not attempt to make such
connections themselves, but should contact the
appropriate electrical inspection authority, or
electrician, as appropriate.

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The Load Number (LN) assigned to each terminal device
indicates the total load percentage that can be con-
nected to a telephone loop. The termination on a loop
may consist of any combination of devices. However,
the total LN of all the devices must not exceed 100.
The Load Number and Canadian certification number
are listed on the modem label. The Canadian DOC
connector codes supported are CA11A, CA41A, and
CA45A. For internal modems on which the agency
information label cannot be seen when the modem is
installed, a second agency label will be provided. The
customer must attach the label to the exterior of the
cabinet in which the modem is installed.
Repairs Inquiries regarding Canadian repair centers should be
addressed to:
Customer Service
Zypcom, Inc.
2301 Industrial Parkway, Bldg. 7
Hayward, CA 94545
[phone]

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Description The Zypcom Z34-SC and Z34-PC modems
are versatile desktop communication devices.
These devices have high-speed data transfer
(56Kbps) and send/receive facsimile transmission
capabilities, as well as a variety of important voice and
video communication features. The Z34-SC and Z34-
PC (C-Series) modems operate full-duplex (data and
voice) on dial-up lines.
C-Series modems use advanced DSP technology to
transform your computer into a 56Kbps* data modem, a
fax machine, a professional voice mail system, and a full
duplex speakerphone. In addition, these C-Series
modems support V.80, the videophone standard that is
required by H.324 videophone software. The C-Series
modems include software to control and use the
advanced data, fax, and voice features supported by
this modem.
*Note: Zypcom x2 products are capable of 56 Kbps
downloads; however, due to FCC rules restricting power
output of modems, current download speeds are limited
to 53 Kbps. Actual speeds may vary depending on line
conditions. Uploads from the user to the ISP travel at
speeds up to 28.8 Kbps.
CHAPTER
1 Introduction

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Features
qV.34+ 33,600bps asynchronous data modem
with throughput up to 115.2Kbps
q56000 bps using USR x2 technology*
qV.42 and MNP 2-4 error correction
qV.42bis and MNP 5 data compression
qFax Group 3 compatibility, V.17 at 14.4Kbps and
V.29 at 9.6Kbps, fax software Class 1
qHayes AT auto-dialing
qEIA/TIA IS-101 compatible voice commands
qAnswer machine and voice mail
qFull-duplexspeakerphone
qAudio recording and playback of messages
qFlash memory for modem upgrades
qV.80 compatible for videophone software
qCaller ID support
qNon-volatile memory for stored profiles and
phone directory
qPlug and Play or manual configuration
qZ34-SC includes built-in audio speaker and MIC
for speakerphone
qZ34-PC has an MIC, speaker and earphone jacks
with volume control
qZ34-PC comes with an external MIC
qWindows 3.1 and Windows 95 software for data,
fax, and video operation is included

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System Requirements
Z34-SC Requires
qPC with a free COM port 1, 2, 3, or 4
q3.5” floppy drive
qHard disk drive with 5MB free space
Z34-PC Requires
qPC with a free 16-bit ISA slot
q3.5” floppy drive
qHard disk drive with 5MB free space
qFree COM port address: 1, 2, 3, or 4
qFree IRQ for the COM port: 3, 4, 5, 7, 10, 11, or
12
qSpeaker or earphone set (optional)
Modes of Operation
The Zypcom C-Series modems incorporate the CL-
MD3452 DSP chipset from Cirrus Logic. The Cirrus
Logic chipset uses special AT commands to control the
modem's advanced features of data mode, fax mode, and
voice mode. Each mode has its own AT command set.
Data mode uses the Hayes AT command set. Fax mode
uses commands specified in EIA-578. Voice mode uses
IS-101 commands.

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Data Mode In data mode, the modem can operate at a line speed of
up to 56,000 bps. These modems will automatically
downshift during the initial handshake to communicate
with lower-speed modems. The C-Series modems
support the following modem standards:
ITU-T: V.34+, V.34, V.32bis, V.32, V.22bis, V.22,
V.21
USR: x2 56Kbps technology
Bell: 212A, 103
The C-Series modems implement a Hayes compatible AT
command set in data mode. This command set is
compatible with any communication application
software that supports the standard AT command set.
The AT commands for data are listed in Table 3-1 in
Chapter 3.
Error Control Modes In data mode, the modem supports error correction
(V.42, MNP 2, MNP 3 and MNP 4) and data compression
(V.42bis and MNP 5). Error correction ensures error-
free data transfer, while data compression increases the
modem data throughput over the basic line speed of the
connection. Depending on the data stream, MNP 5 may
provide up to 2-to-1 compression. Alternately, V.42bis
may provide up to 4-to-1 compression. In V.34
modems, if possible, you should type \N4 to force your
software to hang up the call if an error control
connection is not negotiated during handshake. A
description of the AT commands that support error
correction and data compression is provided in Chapter
3.

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Fax mode In fax mode, the modem operates at up to 14,400 bps
(transmit and receive), and implements all the data
rates and modulation schemes for standards V.17, V.29,
V.27ter, and V.21 channel 2. The C-Series modems
implement a standard Class 1 fax command set,
compatible with any communication application
software that also supports EIA/TIA-578 Fax Class 1.
However, users never have to use the EIA/TIA-578
commands to control fax operation, since this is the sole
responsibility of the fax software. The EIA/TIA-578
commands are listed in Appendix C. For more
information about Class 1 faxing, please refer to the
SuperVoice User's Guide included with your modem or
use the software's Help functions.
Voice Mode The C-Series modems support voice mode operation
using IS-101 AT type voice commands. The modem's
voice mode requires IS-101 compatible software for voice
operation. Voice mode allows the user to use the
modem as a digital answer machine, a voice mail
system, and a full-duplex speakerphone. The Z34-SC's
built-in microphone and speaker allow the modem to be
a speakerphone without additional hardware. The
complete set of IS-101 commands are listed in Appendix
B. For the operation of voice applications, please refer
to the SuperVoice User’s Guide.
Full-Duplex
Speaker-phone Both of the C-Series modems support full-duplex
speakerphone with internal adaptive echo cancellation.
Phone users can talk simultaneously without the
remote user hearing an echo.

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On the Z34-SC modem, everything that is required to
operate the modem in this mode of operation is provided
(MIC, speaker, software and modem).
With the Z34-PC modem, optional speakers are needed
for speakerphone operation. To use the speakers
attached to your soundcard, jumper the modem's
speaker jack (sound-out) to the soundcard's input jack
(sound-in) with a standard (male-to-male) phono plug
cable.
Caller ID Caller ID is a service that allows the called party to
know the caller’s telephone number before the call is
answered. The information transmitted to the called
party via Caller ID includes the call date, the call time,
and the calling telephone number. This service is not
available everywhere due to Central Office telephone
equipment limitations and legal prohibition in some
locations.
The +VCID = n command controls the reporting and
presentation of the data associated with the Caller ID
services in the United States and Canada, in the ICLID
(incoming call line ID) data format. For more
information about this command, please refer to
Appendix B.