3COM 520, 530, 510 User Manual

OFFICECONNECTTM REMOTE

510, 520, 530

USER GUIDE

Please read the Supplementary Information section of this manual for details of the OfficeConnect 531 model and an EMC Update

Part No. 980/000033/001

Published January 1996

3Com Corporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8154

© 3Com Sonix Limited, 1996. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Sonix. 3Com Sonix reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Sonix to provide notification of such revision or change. 3Com Sonix provides this documentation without warranty of any kind, either implied or expressed, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 3Com Sonix may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

UNITED STATES GOVERNMENT LEGENDS:

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following restricted rights:

For units of the Department of Defense: Restricted Rights Legend: Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) for restricted Rights in Technical Data and Computer Software clause at 48 C.F.R. 52.227-7013. 3Com Sonix Limited, Merchants’ House, Wilkinson Road, Cirencester, Gloucestershire, GL7 1YT.

For civilian agencies: Restricted Rights Legend: Use, reproduction or disclosure is subject to restrictions set forth in subparagraph (a) through (d) of the Commercial Computer Software - Restricted Rights Clause at 48 C.F.R. 52.227-19 and the limitations set forth in 3Com Corporation’s standard commercial agreement for the software. Unpublished rights reserved under the copyright laws of the United States.

If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT. If you are unable to locate a copy, please contact 3Com Sonix and a copy will be provided to you.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com, Boundary Routing and Transcend are registered trademarks of 3Com Corporation. OfficeConnect is a trademark of 3Com Corporation. 3Com Laser Library, 3TECH, CacheCard and SmartAgent are trademarks of 3Com Corporation. 3ComFacts and are service marks of 3Com Corporation.

CompuServe is a registered trademark of CompuServe, Inc. Castelle is a registered trademark of Castelle Corporation. Novell and NetWare are registered trademarks of Novell Inc. Windows is a trademark of Microsoft Corporation. VT100 is a registered trademark of Digital Equipment Corporation.

Other brand and product names may be registered trademarks or trademarks of their respective holders.

IMPORTANT SAFETY INFORMATION

WARNING: Warnings contain directions that you must follow for your personal safety. Follow all instructions carefully.

Please read carefully and thoroughly the following information before installing the OfficeConnect Remote:

■Exceptional care must be taken during installation and removal of the unit.

■Only stack the OfficeConnect Remote with other OfficeConnect units.

■Only use the power adapter that is supplied with the unit to ensure compliance with international safety standards.

■It is essential that the mains socket outlet is located near the unit and is accessible. You can only remove power to the OfficeConnect Remote by disconnecting the power adapter from the unit or from the socket outlet.

■The safety status of the interconnection port on this equipment are as follows:

Ports identified by the labels VOICE and ISDN = TNV

Ports identified by the labels SERIAL, COAX, 10BASET and WAN = SELV

TNV (telecoms network voltage) is a circuit which under normal operating conditions carries telecommunication signals.

SELV (safety extra low voltage) is a secondary circuit which is designed and protected so that under normal and single-fault conditions, the voltage between any two accessible parts does not exceed a safe value (42.2 V peak or 60 V DC).

Only connect apparatus complying with the relevant interface requirements to the ports on this unit..

■There are no user-replaceable fuses or user-serviceable parts inside the unit. If you have a physical problem with the unit that cannot be solved with problem solving actions in this guide, contact your supplier.

■Disconnect the power adapter before moving the unit.

WARNING: Twisted Pair RJ45 data port. This is a shielded RJ45 data socket. It cannot be used as a telephone socket. Only connect RJ45 data connectors to this socket.

WICHTIGE SICHERHEITSHINWEISE

ACHTUNG: Die Warnungen enthalten Anweisungen, die Sie zur eigenen Sicherheit zu befolgen haben.

Lesen Sie bitte die folgenden Informationen sorgfältig durch, bevor Sie den OfficeConnect Remote einbauen:

■Auf besondere Vorsicht muß während des Einund Ausbaus des OfficeConnect Remotes geachtet werden.

■Stapeln Sie den OfficeConnect Remote nur mit anderen OfficeConnect Einheiten zusammen.

■Verwenden Sie nur das mit dem OfficeConnect Remote mitgelieferte Netzteil um die internationalen Sicherheitsstandards zu erfüllen.

■Die Netzsteckdose muß sich in unmittelbarer Nähe des OfficeConnect Remotes befinden und frei zugänglich sein. Sie können den OfficeConnect Remote nur spannungsfrei schalten, indem Sie das Steckernetzteil aus der Netzsteckdose ziehen oder die Verbindung zum Gerät unterbrechen.

■Der Sicherheitsstandard der Anschlüsse fuer dieses Gerät sind wie folgt:

Anschlüsse bezeichnet mit VOICE und ISDN = TNV

Anschlüsse bezeichnet mit SERIAL, COAX, 10BASET und WAN = SELV

TNV (Telecoms Network Voltage - Spannung des Telekommunikationsnetzwerks) ist ein Anschluss, der unter normalen Umständen Telekommunikationssignale enthält .

SELV (Safety Extra Low Voltage - Extra Sicherheitsspannung) ist ein weiterer Anschluss, der unter normalen Umständen und Fehlerkonditionen entworfen und gesichert wurde, so dass die Spannung zwischen zwei erreichbaren Teilen kein gefährliches Niveau erreicht (42.2V max. oder 60 V DC).

An den Anschlussbuchsen der Geräte dürfen nur die dafür vorgesehenen Anschlüsse verwendet werden.

■Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Gerät vorhanden. Wenn Sie ein Problem mit dem OfficeConnect Remote haben, das nicht mittels der Fehleranalyse in dieser Anleitung behoben werden kann, setzen Sie sich mit Ihrem Lieferanten in Verbindung.

■Bevor der OfficeConnect Remote ausgebaut wird ist das Netzteil zu ziehen.

ACHTUNG: gedrehte paarfache RJ45 Datenanschluss.

Es ist eine abgeschirmte RJ45 Datenanschlußbuchse. Sie darf nicht als Telefonanschluß verwendet werden. Verbinden Sie nur RJ45 Datenstecker mit diesem Anschluss.

L’INFORMATION DE SÉCURITÉ IMPORTANTE

AVERTISSEMENT: Les avertissements contiennent les instructions que vous devez suivre pour votre sécurité personnelle. Suivre toutes les instructions avec soin.

Veuillez lire à fond l’information suivante avant d’installer le moyeu:

■Le soin exceptionnel doit être pris pendant l’installation et l’enlèvement du moyeu.

■Seulement entasser le moyeu avec les autres moyeux OfficeConnects.

■Seulement utiliser la pièce de raccordement d’alimentation qui est fournie avec le moyeu pour assurer la conformité avec les normes de sécurité internationales.

■C’est essentiel que le socle de prise de courant du réseau soit localisé proche du moyeu et soit accessible. Vous pouvez seulement enlever l’alimentation au moyeu en débranchant la pièce de raccordement d’alimentation de l’unité ou du socle de prise de courant.

■Les normes de sécurité des ports d'interconnexion sur cet équipement sont les suivants:

Les ports marqués par les etiquettes VOICE et ISDN = TNV

Les ports marqués par les etiquettes SERIAL, COAX, 10BASET et WAN = SELV

TNV (Telecoms Network Voltage - tension réseau de télécommunications) est un circuit qui dans des conditions d'opérations normales, transfert les signeaux télécoms.

SELV (Safety Extra Low Voltage - tension de sécurité extra-réduite) est un circuit secondaire désigné et protègé qui dans des conditions normales et de fautes uniques, assure que la tension entre deux éléments accessibles n'accedéra pas un niveau de sécurité (42.2V max. ou 60 V DC).

Connecter uniquement des unités conformes aux normes relatives des interfaces de cet équipement.

■Il n’y a pas de parties remplaceables par les utilisateurs ou entretenues par les utilisateurs à l’intérieur du moyeu. Si vous avez un problème physique avec le moyeu qui ne peut pas être résolu avec les actions de la résolution des problèmes dans ce guide, contacter votre fournisseur.

■Débrancher la pièce de raccordement d’alimentation avant de remuer le moyeu.

AVERTISSEMENT: Le port de données RJ45 de paire tordue. Ceux-ci est un socle de données RJ45 blindé. Il ne peut pas être utilisé comme socle de téléphone. Seulement brancher les connecteurs de données RJ45 à ce socle.

CONTENTS

IMPORTANT SAFETY INFORMATION

WICHTIGE SICHERHEITSHINWEISE

L’INFORMATION DE SÉCURITÉ IMPORTANTE

ABOUT THIS GUIDE

Introduction 1

How to Use This Guide 1

Conventions 2

Additional Safety Information 3

1 GETTING STARTED

Introduction 1-1

OfficeConnect Remote Features 1-1

Benefits of ISDN 1-3

Pack Contents Checklist 1-4

Registering Ownership Of Your OfficeConnect

Remote 1-5

Pre-installation Requirements 1-5

OfficeConnect Remote Front and Rear Panel

Features 1-6

Installation 1-10

Siting the OfficeConnect Remote 1-10

Using the Rubber Feet and Stacking Clips 1-11 Wall Mounting the OfficeConnect Remote 1-12 Connecting the Power Adapter 1-12 Connecting to Your 10BaseT LAN 1-13 Connecting to a Single Workstation 1-14 Connecting to Your 10Base2 LAN 1-14 Connecting to ISDN 1-15

Connecting to the WAN 1-16 Connecting to the VOICE Port 1-16

Connecting a Management Terminal 1-16 Location of OfficeConnect Fax and Print

Servers 1-16

Quick Configuration 1-17

Starting Quick Configuration 1-17

About Quick Configuration 1-19 Setting the Unit Name 1-20

Connecting to a Novell (IPX) Network 1-21 Connecting to an IP Host on the Same IP

Network 1-22

Connecting to an IP Host on a Different IP Network 1-23

Connecting to the Internet or a PPP Router 1-25

	Monitoring ISDN Line Usage 1-28						Numbered and Unnumbered Links A-15
	Setting Up a WAN Link		1-28
	Examples of Typical ISDN Networking Applications				1-30	B
							TECHNICAL INFORMATION
	Novell Network 1-30
	IP Host on the Same IP Network			1-31			Specifications B-1
	IP Host on Another IP Network			1-33			LAN Connector Interfaces	B-1
	Internet or PPP Router 1-34						WAN Connector Interface	B-1
	Multiple Connections from a Single Site 1-35						ISDN Connector Interface	B-1
	Troubleshooting	1-36					Voice Connector Interface	B-1
A							Management Connector Interface B-1
	BRIDGING AND ROUTING						Bridge Characteristics B-2
	Introduction A-1						Performance B-2
							Approvals B-2
	Bridging and Routing Concepts A-1
							FCC Requirement B-3
	Guidelines For Choosing Bridging or Routing A-2
							Dimensions B-4
	How Bridges Learn		A-2
							Interface Cable Characteristics	B-5
	Bridging Between Remote Sites			A-3
							WAN Port Connecting Cable – V.11/X.21
	Building a Larger Network A-4
							Support B-5
	Multiple Paths Between Bridged LANs A-5
							WAN Port Connecting Cable – V.24/V.28
	Network Topology		A-6
							Support B-6
	Broadcast Storms		A-6
							WAN Port Connecting Cable – V.35/V.36
	Optimum Use of Resource A-6
							Support B-7
	Network Organization, Structure and Physical Layout A-7
							Manager Port Connecting Cable B-8
	The Internet	A-7
							Modem Cable B-9
	Routing IP and IPX A-7
							LAN Port Connecting Cable - 10BaseT B-9
	IP Routing A-9
							Ordering Information B-10
	IPX Routing	A-11
	IP Addresses	A-12

CGLOSSARY

DTECHNICAL SUPPORT

On-line Technical Services D-1 3Com Bulletin Board Service D-1 World Wide Web Site D-2

Support from Your Network Supplier D-2 Support from 3Com D-2

Returning Products for Repair D-3

INDEX

ABOUT THIS GUIDE

Introduction

This guide describes the features, installation and initial configuration of the OfficeConnect Remote. The guide has been designed to be used by both first-time and experienced computer network users who want to install and use the OfficeConnect Remote. xxx

If you are working with an ISDN bridge or router for the first time, it is possible you may make mistakes. We have tried to identify the likely errors you may make and have provided hints and tips to help you recover from error situations.

Once you have carried out the intial configuration of the unit using the Quick Configuration option you can carry out additional configuration to optimize the unit’s performance on your network. Refer to the Software Reference guide for more details.

How to Use This Guide

This table shows where to find specific information:

If you are looking for information on:	Turn to:
About the OfficeConnect Remote’s features, a	Chapter 1
description of the front panel indicators and rear
panel connectors and step-by-step installation
and configuration instructions.
An overview of bridging and routing and an	Appendix A
introduction to IP and IPX protocols.
Technical Information and cable specifications	Appendix B
Glossary of technical terms	Appendix C
Technical Support information	Appendix D

2 ABOUT THIS GUIDE

Conventions

The icon conventions that are used throughout this guide are:

Icon	Type	Description
	Information Note	Information notes call attention to
		important features or instructions.
	Caution	Cautions alert you to personal
		safety risk, system damage, or loss
		of data.
	Warning	Warnings alert you to the risk of
		severe personal injury.

The text conventions used in this guide are:

Convention	Description
“Enter” vs. “Type”	When the word “enter” is used in this
	guide, it means type something, then
	press the [Return] or [Enter] key. Do not
	press the [Return] or [Enter] key when an
	instruction simply says “type.”
Text represented as	This typeface is used to represent
screen display	displays on your screen, for example:
	Enter the unit’s IP address:
Text represented as	This typeface is used to represent
commands	commands that you enter, for example:
	CO IS NU
Keys	When specific keys are referred to in the
	text, they are called out by their labels,
	such as “the Return key” or “the Escape
	key,” or they may be shown as [Return] or
	[Esc].
	If two or more keys are to be pressed
	simultaneously, the keys are linked with a
	plus sign (+), for example:
	Press [Ctrl]+[Alt]+[Del].
Italics	Italics are used to denote new terms or
	emphasis.

Additional Safety Information

See also the Important Safety Information at the front of this guide.

■When using the unit, observe the following safety information:

■Retain this user’s guide for later use and pass it on in the event of change of ownership of the unit.

■The power adapter supplied with the unit is fitted with a moulded plug, for connection to a standard electrical mains system supply socket. If this plug is not suitable for your connection to your mains supply, contact your reseller for advice. On no account should you attempt to connect to your mains supply using an inappropriate mains adapter.

■Protect the unit from sudden, transient increases and decreases in electrical power by fitting an in-line surge suppresser or uninteruptable power supply.

■Products manufactured by us are safe and without risk provided they are installed, used and maintained in good working order in accordance with our instructions and recommendations.

Additional Safety Information

3

■If any of the following conditions occur, isolate the electricity supply and refer to your 3Com reseller.

■If the case or cover is not correctly fitted.

■If the case is damaged.

■If the unit begins to make an odd noise, smell or smoke.

■If the unit shows signs of a distinct change in performance.

■Never install telephone wires during a lightening storm, or install telephone connection sockets in wet locations, unless the socket is specifically designed for wet locations.

■Do not touch uninstalled telephone wires or terminals unless the telephone line has been disconnected at the network interface. Always exercise caution when installing or modifying telephone lines.

■Do not use a telephone, which is connected to the unit, to report a gas leak in the vicinity of the leak.

■Do not spill food or liquids on the unit. If the unit gets wet, isolate the electrical supply and contact your 3Com reseller.

4ABOUT THIS GUIDE

■Do not push any objects into the openings of the unit. Doing so can cause fire or electric shock by shorting out internal components.

■Avoid using a telephone, which is connected to the unit (other than a cordless type), during an electrical storm. There may be a remote risk of electric shock from lightning.

■Equipment connected to the Voice port must be located in the same building as the unit.

■Be sure nothing rests on the unit’s system cables and that the cables are not located where they can be stepped on and cause damage to the unit.

■Keep the unit away from radiators and heat sources. Allow 25mm (1 inch) around the unit to provide adequate air circulation.

■Install the unit in a clean area that is free from dust or extreme temperatures.

■The unit has been designed to be a free standing unit or stacked with other OfficeConnect units. Do not place anything else on top of the unit’s case.

■Allow a clearance gap of at least a 150 mm from the rear panel of the unit, to allow for cable access.

■This product ostensibly complies with the electro-magnetic compatibility (EMC) requirements of EN 55022 Class A and EN 50082 (susceptibility). However, to fully comply with Class B of EN55022 the following prerequisites should be observed;

■the WAN port must be attached to a screened digital cable.

■the ISDN cable must be used in conjunction with a three turn ferrite.

■This unit contains a lithium battery which is attached to a microchip on the printed circuit board. The defective battery must be disposed of safely in-line with the manufacturers instructions.

■Interconnecting directly, or by way of other apparatus, to ports complying with SELV requirements may produce hazardous conditions on the network. Advice should be sought from a competent engineer before such a connection is made.

1 GETTING STARTED

OfficeConnect Remote Features

Introduction

Welcome to the world of inter-networking with 3Com®. This chapter contains all the information you need to install and configure the OfficeConnect Remote to make it operational. You can carry out more sophisticated configuration using the information in the Software Reference guide.

In the modern business environment sharing information is crucial. Until now only large businesses could afford the high speed connections between offices to gain the networking advantage. The OfficeConnect Remote changes this and provides high speed, low cost inter-networking for small offices and home users.

The OfficeConnect Remote is ideal for linking together remote offices or workgroups. It is compact and attractively designed for desktop use and is part of the OfficeConnect™ range which neatly stack together with clips to provide a host of other facilities, for example, Ethernet hub, print sharing and network fax.

The OfficeConnect Remote is designed to connect a LAN (Local Area Network) at one location with a number of other LANs at remote locations. The LAN could comprise any number of PCs, servers or other computing equipment, which in an office or small business environment are typically linked together using a centrally located OfficeConnect hub. In order to interconnect the hubs in different locations, the OfficeConnect Remote unit transmits information over a WAN (Wide Area Network) service provided by telephone carrier organizations.

The most modern and efficient of these WAN services includes ISDN (Integrated Services Digital Network). This provides a high speed dialup facility to allow your OfficeConnect Remote to automatically and quickly dial remote offices, transmit your data between remote PCs just as speedily and then disconnect the call. You incur minimum ISDN telephone charges as calls are made only when needed. This is known as Dial on Demand.

1-2 CHAPTER 1: GETTING STARTED

ISDN can also be used to make voice calls using the OfficeConnect Remote from an ordinary telephone handset, connect faxes and other similar office equipment. All OfficeConnect Remote models have facilities for ISDN data transmission. Some models have an additional port for voice calls and/or a port to handle a third category of connection over a serial WAN port.

The WAN port connects to a permanent leased line, also available from your telephone carrier organization. Leased lines are available to work at a range of speeds which incur higher costs the higher the line speed. The benefit of leased lines is their permanence and fixed cost. No dialling is required but unlike ISDN you pay a fixed cost regardless of whether you transfer little data or high volumes of data 24 hours a day.

Overall ISDN is probably the most cost effective solution for small businesses. However, if your requirements to move data between sites is likely to increase you should consider purchasing the OfficeConnect Remote model fitted with both ISDN and WAN ports to ensure increased flexibility. The range of OfficeConnect Remote units is as follows:

■OfficeConnect Remote 510 – Provides connection from 10BaseT or Thin Ethernet (10Base2) LANs to ISDN services for data transfer between remote sites.

■OfficeConnect Remote 520 – In addition to the data transfer facilities, this model has a Voice port allowing a telephone (or other equipment such as a Fax) to communicate via ISDN.

■OfficeConnect Remote 530 – This model has the ISDN and Voice port facilities and additionally the ability to connect via a WAN port to a serial leased line.

All of the above models are available with U or S ISDN interfaces.

Typically, the OfficeConnect Remote is used to interconnect LANs running protocols such as Transmission Control Protocol/Internet Protocol (TCP/IP) or Novell Internetwork Packet Exchange (IPX). Offering full LAN-to-LAN connectivity at speeds up to 64 Kilobits per second (Kbps) on each ISDN channel and up to2 Megabits per second (Mbps) on the WAN port (where fitted), the OfficeConnect Remote is a compact desktop unit with unrivalled price and performance.

The principal features of the OfficeConnect Remote are:

■Easy to install, configure and support.

■ISDN, 2B+D port, supporting Basic Rate interface of two 64 Kbps (or two 56 Kbps channels in the USA) and a 16 Kbps control channel.

■Optional voice port.

■Optional Leased line wide area network (WAN) access port.

■Data terminal equipment (DTE) management port

■Support for full IP and IPX routing.

■Protocol transparent bridging.

■Sophisticated data packet filtering to provide network security.

■Provides NetWare protocol spoofing.

■Data compression based on an optimized Lempel Ziv algorithm.

■Remote and local management.

■Flash erasable programmable read-only memory (EPROM), allowing the remote upgrading of the units operating system.

■Uses simple network management protocol (SNMP) and provides management information base (MIB) II support.

Introduction 1-3

Benefits of ISDN

ISDN is an extension of the national and international public switched telephone network, which offers a digital end-to-end telecommunication system, providing a better quality service than available using the analog telephone network. The principal benefits of ISDN are:

■Fast call setup times, typically taking less than one second for national calls.

■Greater bandwidth with multiple channels.

The basic rate service, often referred to as ISDN 2, carries two 64 Kbps user channels, called B channels and one 16 Kbps control channel called the

D channel. The line service is presented into the customers premises through a standard RJ45 socket.

A significant aspect of the ISDN service is that it can be provided over the same wiring that was installed for the original telephone service. Therefore, ISDN can be made available relatively cheaply almost anywhere that previously had access to the analog system.

The cost of installation and rental of basic rate ISDN lines has dropped to the point where it is extremely attractive as regards cost and performance.

1-4 CHAPTER 1: GETTING STARTED

Using ISDN to Support Leased Line WAN Circuits

ISDN provides an ideal service to connect remote LANs. To be effective, the connecting bandwidth needed is at least 64 Kbps to achieve a realistic throughput. Slower speed links can be used but usually only when usage is low and infrequent, or if higher speed circuits cannot be provided.

Leased digital point-to-point circuits can still be cost effective if usage spans many hours per day. However as ISDN tariffs reduce, this balance also changes. ISDN can be used to provide effective backup of these point-to-point WAN circuits in two ways.

■Firstly, if the point-to-point circuit fails, an ISDN channel can be dialled-up automatically and quickly, to provide an alternative path to the remote unit.

■Secondly, if the leased circuit becomes heavily loaded due to peaks in the traffic between remote bridges or routers, additional bandwidth can be automatically dialled-up to supplement the bandwidth of the leased circuit. The interconnected bridges would then treat the leased line and ISDN channel as parallel links, sharing the load across the two.

Pack Contents Checklist

Before you install your OfficeConnect Remote, check the contents of the box against the pack contents checklist below. If any of the items have been damaged in transit or are missing, then contact the 3Com dealer from whom the equipment was purchased.

■1 x OfficeConnect Remote unit.

■1 x power adapter fitted with an appropriate plug for your national power supply.

■1 x 1.5 meter RJ45 to RJ45 male plug ISDN 2 connecting cable.

■1 x 1.5 meter DB9 to DB9 serial manager port cable.

■1 x British Telecom to RJ11 convertor (UK models of OfficeConnect Remote 520 and 530 only).

■1 x OfficeConnect Remote User Guide.

■1 x OfficeConnect Remote Software Reference guide.

■1 x Warranty Registration Card.

It is important that you save the unit’s box and protective packing material in case you need to store, or transport it in the future.

Registering Ownership Of Your OfficeConnect

Remote

A warranty registration card is enclosed in the box with your OfficeConnect Remote. Please take a few moments before commencing the installation to fill in the card and post it to us.

Introduction 1-5

Pre-installation Requirements

Before you install your OfficeConnect Remote you will need the following:

■A suitable cable for connection to your LAN (or workstation if only a single workstation is attached to this unit).

Although the OfficeConnect Remote has two LAN connections (10Base2 and 10BaseT), only one port can be used at a time.

■A standard ISDN line wall socket to connect the ISDN cable to the ISDN port of the OfficeConnect Remote. If a suitably sited wall socket is not already available, then contact your telecommunications supplier for assistance.

■A suitable cable to connect to your ISDN socket. A 1.5 meter ISDN cable is supplied with this unit.

■The ISDN telephone number of the remote ISDN unit in order to carry out the connection configuration procedure.

■A suitable WAN cable if you are connecting to the remote site over a leased line.

1-6 CHAPTER 1: GETTING STARTED

OfficeConnect Remote Front and Rear Panel Features

Front Panel

Figure 1-1 OfficeConnect Remote Front Panel Features

! ALERT (Orange) This LED indicator shows four states.

■Off – Normal operation and no faults detected.

■Slow flash – Loading software during power up or new software is being downloaded to the unit.

■Quick flash – Self test during power up.

■On – Problem detected. Refer to “Troubleshooting” on page 1-38 for more information.

POWER (Green) This LED indicator shows three states:

■On – Power is connected to the unit.

■Slow flash – New software is being downloaded to the unit.

■

■

Quick flash – Self test or software loading during power up.

Off – No power supplied to the unit. See “Troubleshooting” on page 1-38 for more details.

Introduction 1-7

LINK (Orange) This LED indicator shows the condition of the LAN connection:

■Off – No LAN connection detected.

■On – LAN connected.

ISDN OK (Green) This LED indicator provides confirmation of the state of the ISDN line.

■On – Indicates the OfficeConnect Remote is connected to a working ISDN line. Sometimes this LED does not light until the first call attempt is made.

■Flashing – A fault condition has been identified on the ISDN line.

■Off – No ISDN connection present.

ISDN1 and ISDN 2 (Yellow) These LED indicators provide confirmation that an ISDN call is in progress on ISDN Channel 1 or Channel 2. You are connected to a remote ISDN unit and are incurring ISDN call charges while this LED is lit. If the LED is flashing it indicates that a call is being made but a connection has not yet been made to the remote unit.

1-8 CHAPTER 1: GETTING STARTED

VOICE (Yellow) If a Voice port is fitted this LED shows the status of the voice connection:

■On – A voice call is in progress.

■Flashing – Indicates that handset is off the hook and a dial tone is present or a call is being dialled or ringing out. It also shows if the handset is ringing (receiving an incoming call).

WAN (Yellow) This LED indicator provides confirmation of the state of the WAN link (if fitted). If the LED is lit, the WAN connection is valid and can pass data across the link. If the LED is flashing it indicates a fault on the WAN port.

ISDN Utilization (Green/Yellow) These LEDs show the ISDN utilization as a percentage of network loading. If you consistently see a continuous ISDN loading of 100% and you require faster throughput, then you might consider the following:

■You could configure the unit to filter some of the data. See the Software Reference guide for more information.

■An additional ISDN or WAN link is possibly required to cope with the amount of data you need to transfer.

Rear Panel

Figure 1-2 OfficeConnect Remote Rear Panel Features

POWER Only use the power adapter supplied with the OfficeConnect Remote to connect to the mains power supply. Do not use any other adapter with this unit. If the plug on the power adapter does not match the mains inlet socket, contact your reseller for further advice.

RESET For Technical Support use only.

Introduction 1-9

SERIAL The Serial Manager port enables a management PC or terminal to be connected to the OfficeConnect Remote using the 9-pin V.24 Serial Manager cable supplied with the unit. The port provides VT100 terminal emulation, running at 9600 bps. Refer to Appendix B for more information about cables.

You also need a proprietary communications software package such as Windows ‘Terminal’ to communicate with the OfficeConnect Remote.

1-10 CHAPTER 1: GETTING STARTED

COAX (10Base2 Coaxial Port) – The coaxial LAN port allows a 10Base2 Ethernet segment to be connected directly to the OfficeConnect Remote. If the unit is to be installed at the end of a cable run, then a 50 Ohm terminator must be fitted to the 10Base2 cable connector. This port can be used to connect to OfficeConnect hubs.

MDI/MDIX Switch Affects the operation of the 10BaseT LAN port. If you are connecting to a hub, leave the switch in the In position. If you are connecting to a single PC, set the switch to the Out position to implement the 10BaseT crossover that is required.

WAN (OfficeConnect Remote 520 and 530 only)

This port is used to provide connection to a WAN, via a private leased line. The port terminates with a 25-way D-type female connector. This port supports any of the CCITT data transmission standards; X.21/V.11 V.24/V.28 (RS232), and V.35/V.36 at data transfer rates up to 2 Mbps. Provided that connection cables that follow these standards are used, the OfficeConnect Remote automatically detects the type of interface that the port is required to support, and configure it accordingly.

Refer to Appendix B for information about the WAN interface cables required. Suitable cables are available from your 3Com reseller as spare parts, refer to Appendix B for required item part number

10BASET This RJ45 port is to the left of the ISDN socket when looking at the rear of the unit and is used to provide a connection to a 10BaseT LAN. This socket allows direct connection between the OfficeConnect Remote and a single piece of equipment, as opposed to multi-point LAN connections using 10Base2 cabling systems. The OfficeConnect Remote LAN port simulates the characteristics of a workstation port, which allows it to be directly connected to a LAN or network hub port as required.

If the LAN port is to be connected directly to a single PC or workstation, then you must implement the crossover by setting the MDI/MDIX switch to the out position. See “MDI/MDIX Switch” for more information.

ISDN This port is used to connect to the ISDN network. The port uses an RJ45 connection socket situated to the left of the 10BaseT LAN socket. A standard ISDN line wall socket is required to connect the ISDN cable to the ISDN port of the OfficeConnect Remote.

VOICE (where fitted) This port is used to connect an optional public switched telephone network (PSTN) telephone handset, or any other compatible analog equipment, operating in digital tone multiple frequency (DTMF) mode, by connecting the handset’s plug into this port.

This port is in effect an analog to digital convertor which allows you to use your conventional PSTN telephone on an ISDN line. It is capable of supporting ringing current and call progress tones, and supports analog devices to a maximum ringer equivalence number (REN) of two (United Kingdom). Providing one of the two 64 Kbps ISDN channels is not being used by the unit, then a voice call can be made.

Incoming ISDN traffic carries both a voice and data identifier and depending on the type of transmission, a voice call is automatically directed to the appropriate port connected to the telephone handset.

The VOICE port is terminated with an RJ11 socket. If your telephone equipment uses a different connector jack, you will need to obtain a suitable convertor to connect to the VOICE port. A British Telecom to RJ11

Introduction 1-11

convertor is supplied with UK models fitted with a Voice port.

1-12 CHAPTER 1: GETTING STARTED

Installation

Siting the OfficeConnect Remote

When siting the OfficeConnect Remote, ensure:

■It is accessible and cables can be easily connected.

■It is out of direct sunlight and away from sources of heat.

■Cabling is away from:

■Sources of electrical noise, such as radios, transmitters and broadband amplifiers.

■Power lines and fluorescent lighting fixtures.

■Water or moisture cannot enter the case of the unit.

■Air flow around the unit and through the vents in the side of the case is not restricted. We recommend that you provide a minimum of 25mm (approx. 1 inch) clearance around the unit.

To prolong the operational life of your equipment:

■Never stack OfficeConnect units more than four high and ensure that they are clipped securely together.

■Do not place objects on top of any unit or stack.

Using the Rubber Feet and Stacking Clips

The four self-adhesive rubber feet prevent your hub from sliding around on your desk. Stick the feet to the marked areas at each corner of the underside of your hub.

The four stacking clips are used for neatly and securely stacking your OfficeConnect units together.

You can stack up to a maximum of four units. Large units must be stacked below small units.

To stack your units, secure the clips on one side and then on the other. Use the following method to secure one side:

1Place your new unit on a flat surface. Your clips fit in the positions on the side of the unit, as shown in Figure 1-3 (1).

2Position a clip over one of these holes and push it in until it clicks into place, as shown in Figure 1-3 (2). Repeat this for the other clip position on the same side.

3Keeping the front of the units aligned, rest the bottom of the new unit on the clips’ spikes, as shown in Figure 1-3 (3). Push the clips firmly into the new unit until they click into place.

Figure 1-3 Clipping Your Units Together

Repeat these steps to secure the other side.

To remove a clip, hold the units firmly with one hand and hook the first finger of your other hand around the back of the clip. Use reasonable force to pull it off.

Using the Rubber Feet and Stacking Clips

1-13

Wall Mounting the OfficeConnect Remote

There are two slots on the underside of the OfficeConnect Remote which are used for wall mounting. You can mount the unit with the LEDs facing upwards or downwards, to suit your needs.

When wall mounting your OfficeConnect Remote, ensure that it is within reach of the mains socket.

You need two suitable screws. Ensure that the wall you are going to use is smooth, flat, dry and sturdy. Make two screw holes which are 142 mm (5.6 in) apart. Fix the screws into the wall, leaving their heads 3 mm (0.12 in) clear of the wall surface.

Remove any connections to the units and locate it over the screw heads. When in line, gently push the OfficeConnect Remote on to the wall and move it downwards to secure. When making connections, be careful not to push the unit up and off the wall.

CAUTION: Only wall mount single units, do not wall mount stacked units.

1-14 CHAPTER 1: GETTING STARTED

Connecting the Power Adapter

CAUTION: First, read the section; “Important Safety Information” at the start of this manual.

Isolate the electrical mains system supply before commencing installation.

Ensure any on/off power switches at the outlet socket are set to their ‘OFF’ positions.

1Connect the jack of the power adapter to the socket on the rear panel of the OfficeConnect Remote (see “Rear Panel” on page 1-8).

2Plug the mains lead of the power adapter into an adjacent electrical mains system socket and if necessary turn on the power at the outlet socket.

3The OfficeConnect Remote performs a self test and loads the software. During the self test and software loading the ALERT and POWER LEDs flash.

Connecting to Your 10BaseT LAN

Figure 1-4 Connect The UTP Cable To OfficeConnect hub

You can connect the OfficeConnect Remote to a hub using 10BaseT cable in the following way:

1Connect the UTP cable (not supplied) to the 10BaseT port of the OfficeConnect Remote.

2Connect the other end to a 10BaseT port on your hub.

Figure 1-5 Connect The UTP Cable To In-House Lan Connection Box

To connect the OfficeConnect Remote to in-house LAN:

1Connect the UTP cable (not supplied) into RJ45 socket marked LAN on the OfficeConnect Remote.

2Connect the other end of the cable into the female socket of the in-house LAN connection box, as shown in Figure 1-5, or directly to a 10BaseT hub port.

Using the Rubber Feet and Stacking Clips

1-15

Connecting to a Single Workstation

To connect the OfficeConnect Remote to a single personal computer or workstation:

1Implement the crossover for the 10BaseT port on the OfficeConnect Remote by setting the MDI/MDIX switch to MDIX (out).

2Connect the UTP cable (not supplied) directly into the RJ45 socket marked LAN on the OfficeConnect Remote.

3Connect the other end to the 10BaseT socket on the workstation’s Ethernet adapter.