ZyXEL Communications U-336S User manual

U-336S

User’s Manual

Version 2.0

(Mar. 1997)

ZyXEL

ACCESSING INTERNET & INTRANET

ZyXEL Limited Warranty

ZyXEL warrants to the original end user (purchaser) that this

product is free from any defects in materials or workmanship for a

period of up to two (2) years from the date of purchase. During the

warranty period, and upon proof of purchase, should the product

have indications of failure due to faulty workmanship and/or

materials, ZyXEL will, at its discretion, repair or replace the

defective products or components without charge for either parts or

labor, and to whatever extent it shall deem necessary to restore the

product or components to proper operating condition. Any

replacement will consist of a new or re-manufactured functionally

equivalent product of equal value, and will be solely at the

discretion of ZyXEL. This warranty shall not apply if the product is

modified, misused, tampered with, damaged by an act of God, or

subjected to abnormal working conditions.

Note: Repair or replacement, as provided under this warranty, is

the exclusive remedy of the purchaser. This warranty is in lieu of all

other warranties, express or implied, including any implied warranty

of merchantability or fitness for a particular use or purpose. ZyXEL

shall in no event be held liable for indirect or consequential damages

of any kind or character to the purchaser.

To obtain the services of this warranty, please contact ZyXEL’s

Service Center, refer to the separate Warranty Card for your Return

Material Authorization number (RMA). Products must be returned

Postage Prepaid. It is recommended that the unit be insured when

shipped. Any returned products without proof of purchase or those

with an out-dated warranty will be repaired or replaced (at the

discretion of ZyXEL) and the customer will be billed for parts and

labor. All repaired or replaced products will be shipped by ZyXEL

to the corresponding return address, Postage Paid (USA and

territories only). If the customer desires some other return

destination beyond the U.S. borders, the customer shall bear the

cost of the return shipment. This warranty gives you specific legal

iii

rights, and you may also have other rights which vary from state to

state.

The contents of this book may not be reproduced (in any part or as

a whole) or transmitted in any form or by any means without the

written permission of the publisher.

Published by ZyXEL Communications Corporation. All rights

reserved.

Note: ZyXEL does not assume any liability arising out of the

application or use of any products, or software described herein.

Neither does it convey any license under its patent rights nor the

patents rights of others. ZyXEL further reserves the right to make

changes in any products described herein without notice. This

document is subject to change without notice.

Acknowledgments

Trademarks mentioned in this manual are used for informational

purposes only.

Trademarks are properties of their respective owners.

FCC Part 15 Information

This device complies with Part 15 of FCC rules. Operation is

subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including

interference that may cause undesired operations.

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 commercial environment. 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.

If this equipment does cause harmful interference to radio/television

reception, which can be determined by turning the equipment off

and on, the user is encouraged to try to correct the interference by

one or more of the following measures:

•Reorient or relocate the receiving antenna.

•Increase the separation between the equipment and the receiver.

•Connect the equipment into an outlet on a circuit different from

that to which the receiver is connected.

•Consult the dealer or an experienced radio/TV technician for

help.

Changes or modifications not expressly approved by the party

responsible for compliance could void the user’s authority to

operate the equipment. Shielded RS-232 cables are required to be

used to ensure compliance with FCC Part 15, and it is the

responsibility of the user to provide and use shielded RS-232

cables.

Information for Canadian Users

The Industry Canada label identifies certified equipment. This

certification means that the equipment meets certain

telecommunications network protective, operation, and safety

requirements. The Industry Canada does not guarantee that the

equipment will operate to a user’s satisfaction.

Before installing this equipment, users should ensure that it is

permissible to be connected to the facilities of the local

telecommunications company. The equipment must also be installed

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 certified connector

assembly. The customer should be aware that the compliance with

the above conditions may not prevent degradation of service in

some situations.

Repairs to certified equipment should be made by an authorized

Canadian maintenance facility designated by the supplier. Any

repairs or alterations made by the user to this equipment, or

equipment malfunctions, may give the telecommunications company

cause to request the user to disconnect the equipment.

For their own protection, users should ensure that the electrical

ground connections of the power utility, telephone lines, and

internal metallic water pipe system, if present, are connected

together. This precaution may be particularly important in rural

areas.

Caution: Users should not attempt to make such connections

themselves, but should contact the appropriate electrical

inspection authority, or electrician, as appropriate.

This digital apparatus does not exceed the class B limits for radio

noise emissions from digital apparatus set out in the radio

interference regulations of Industry Canada. The declarations of CE

marking:

This product has been approved for connection to the Public

Switched Telecommunication Network using interfaces compatible

with ITU-TSS recommendation I.420. This product complies with

the following directives:

1. The Council Directive 89/336/EEC of 3 May 1992 on the

approximation of the laws of the member states relation to

Electro Magnetic Compatibility. (EMC Directive)

2. Council Directive 91/263/EEC of 29 April 1991 on the

approximation of the laws of the Member States concerning

telecommunication terminal equipment. (The Telecom Terminal

Equipment Directive)

3. 93/68/EEC of 22 July 1993 amending the Directives

89/336/EEC, 91/263 /EEC and 92/31/EEC.(Marking Directive)

The Council Directive 92/31/EEC of 28 April 1992 amending

directive on the approximation of the laws of the member states

relating to EletoMagnetic Compatibility.

Contacting ZyXEL

If you have questions about your ZyXEL product or desire

assistance, contact ZyXEL Communications Corporation in one of

the following ways:

•Phone: In North America call between 8:00 AM and 5:00 PM

PST at (714) 693-0808

Outside North America, you can dial +886-3-5783942 EXT

252 between 8:00AM and 5:00PM Taiwan time (GMT +8:00).

•Fax: ZyXEL in North America: (714) 693-8811 or Taiwan:

+886-3-5782439

•E-mail:

•Sales inquiries: [email protected] in North America.

[email protected] outside North America.

•Technical support: [email protected] in North America.

[email protected] outside North America.

vii

•Product information: Visit our site on the World Wide Web:

http://www.zyxel.com.

•FTP: Information , such as ZyXEL software and ROM updates

for North America can be found at this FTP address:

ftp.zyxel.com

For European versions and related files, use the address:

ftp.zyxel.co.at

•Postal Service: You can send written communications at the

following address:

ZyXEL Communications Corporation

6, Innovation Road II, Science-Based Industrial Park

Hsinchu, Taiwan 300, R.O.C.

ZyXEL Communications Inc.

4920 E. La Palma Avenue

Anaheim, CA92807, U.S.A.

viii

Contents

ZyXEL Limited Warranty ii

FCC Part 15 Information iii

Information for Canadian Users iv

Contacting ZyXEL vi

1Introduction 1

Unpacking Your Modem 1

Enclosed Equipment 1

Required Equipment 2

Becoming a Registered Owner 2

Modem Features 3

Standard Features 3

Intelligent Features 4

Fax Compatibility 5

Technical Specifications 5

2Installation 7

Front Panel 7

Front Panel LEDs 7

Front Panel Switches 8

Rear Panel Markings 8

Modem Connection 10

Powering Up 10

3Basic Modem Operation 13

Understanding AT Commands 13

Using the Windows 95 Hyper Terminal Program 13

Dialing and Answering Techniques 15

Dialing using the ATD Command 15

Auto-Answer and Hook Controls 16

Making Your First Connection 16

Quick Tips when issuing AT Commands 17

Modem Result Codes 19

Viewing S Register Values 20

Changing S Register Values 20

Non-Volatile Memory 21

Storing Phone Numbers 21

Dialing Stored Phone Numbers 21

Saving Settings and User Profiles 22

Helpful Hints for PC Computers 22

Default Modem Settings for PC’s 23

ZyXEL Serial/Parallel I/O Card 23

Helpful Hints for Mac Computers 24

Special AT Command Settings for Mac 24

Mac Serial Port 24

Mac Software Tips 24

Helpful Hints for UNIX-Based Computers 25

Serial Cable 25

Basic Modem Settings for UNIX 25

Unix Software Tips 26

4LCD Panel Operation 27

LCD Panel 27

Panel Operation 28

Menu Tree 29

LED Status Screen 29

Double Arrows on The Screen 29

Dialing 30

Dial Memory 30

Storing a Number 31

Dialing a Number 32

Manual Dial 32

Repeat Last Dial 33

Auto Answer 34

Dialing Messages 34

Panel Lock 37

V.25bis Command Set 38

Clock Options 39

RTS Options 40

Command State Options 40

Dialing from Synchronous Mode 41

Answering from Synchronous Mode 42

Auto-Answer 42

Manual Answer 42

5Leased Line Operation 43

Connecting to a Leased Line 43

Line Type Setting 43

Power Level Setting 43

Leased Line Handshaking 44

Manual Connect 44

Auto Handshake 44

Leased-Line Dial Backup 45

Dial Backup 45

Aborting from Leased-Line Operation 46

Terminating a Leased Line Connection 46

6Special Functions 47

Security Functions 47

Levels of Security 47

User Passwords 48

Remote Configuration 50

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