Table of Contents
Related Manuals for 3Com OfficeConnect Remote 510
Summary of Contents for 3Com OfficeConnect Remote 510
- Page 1 EMOTE 510, 520, 530 Please read the the OfficeConnect 531 model and an EMC Update Part No. 980/000033/001 Published January 1996 FFICE ONNECT UIDE Supplementary Information section of this manual for details of...
- Page 2 3Com Corporation © 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.
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Page 3: Important Safety Information
MPORTANT AFETY 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. -
Page 4: Wichtige Sicherheitshinweise
ICHTIGE ICHERHEITSHINWEISE 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: besondere Vorsicht muß während des Ein- und Ausbaus des OfficeConnect Remotes geachtet werden. Stapeln Sie den OfficeConnect Remote nur mit anderen OfficeConnect Einheiten zusammen. -
Page 5: Information De Sécurité Importante
L’ INFORMATION DE 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. -
Page 7: Table Of Contents
ONTENTS MPORTANT AFETY NFORMATION ICHTIGE ICHERHEITSHINWEISE L’ INFORMATION DE ÉCURITÉ BOUT UIDE Introduction 1 How to Use This Guide 1 Conventions 2 Additional Safety Information 3 ETTING TARTED 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... - Page 8 Monitoring ISDN Line Usage 1-28 Setting Up a WAN Link 1-28 Examples of Typical ISDN Networking Applications 1-30 Novell Network 1-30 IP Host on the Same IP Network 1-31 IP Host on Another IP Network 1-33 Internet or PPP Router 1-34 Multiple Connections from a Single Site 1-35 Troubleshooting 1-36 RIDGING AND...
- Page 9 LOSSARY ECHNICAL UPPORT 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 NDEX...
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Page 11: About This Guide
BOUT 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. -
Page 12: Conventions
BOUT UIDE 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. -
Page 13: Additional Safety Information
Additional Safety Information 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. - Page 14 BOUT UIDE 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.
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Page 15: Getting Started
ETTING 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. - Page 16 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.
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Page 17: Benefits Of Isdn
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. -
Page 18: Pack Contents Checklist
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. -
Page 19: Registering Ownership Of Your Officeconnect Remote
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. Pre-installation Requirements Before you install your OfficeConnect Remote you will need the following: A suitable cable for connection to your LAN (or... -
Page 20: Officeconnect Remote Front And Rear Panel Features
1: G HAPTER ETTING TARTED 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. - Page 21 Quick flash – Self test or software loading during power up. Off – No power supplied to the unit. See “Troubleshooting” page 1-38 for more details. Introduction LINK (Orange) This LED indicator shows the condition of the LAN connection: Off – No LAN connection detected. On –...
- Page 22 1: G HAPTER ETTING TARTED 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.
- Page 23 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.
- Page 24 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.
- Page 25 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.
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Page 26: Installation
1-12 1: G HAPTER ETTING TARTED 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. -
Page 27: Wall Mounting The Officeconnect Remote
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. -
Page 28: Connecting The Power Adapter
1-14 1: G HAPTER ETTING TARTED Connecting the Power Adapter CAUTION: First, read the section; 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. Connect the jack of the power adapter to the socket on the rear panel of the OfficeConnect Remote (see “Rear Panel”... -
Page 29: Connecting To A Single Workstation
Figure 1-5 Connect The UTP Cable To In-House Lan Connection Box To connect the OfficeConnect Remote to in-house LAN: Connect the UTP cable (not supplied) into RJ45 socket marked LAN on the OfficeConnect Remote. Connect the other end of the cable into the female socket of the in-house LAN connection box, as shown Figure 1-5, or directly to a 10BaseT hub port. -
Page 30: Connecting To Your 10Base2 Lan
1-16 1: G HAPTER ETTING TARTED Connecting to Your 10Base2 LAN You can use the10Base2 Coaxial port to connect to your network and to other OfficeConnect units. When using 10Base2 cable, it is important that both ends of the segment are properly terminated with 50 Ohm end pieces. -
Page 31: Connecting To Isdn
Connecting to ISDN Figure 1-7 Connect ISDN Cable Into A Proprietary ISDN Wall Box Connect the supplied ISDN cable from the ISDN port into the ISDN wall box (NT1). See CAUTION: Do not connect the ISDN line into the OfficeConnect Remote’s LAN port as the ISDN line voltage could damage the unit. -
Page 32: Connecting A Management Terminal
1-18 1: G HAPTER ETTING TARTED The VOICE port is terminated with an RJ-11 socket. If your telephone equipment uses a different connector, you will need to obtain a suitable convertor to connect to the VOICE port. A British Telecom to RJ11 convertor is supplied with UK models fitted with a Voice port. -
Page 33: Quick Configuration
Quick Configuration This section describes how you can configure the unit to bridge or route over ISDN links to suit most networking requirements using a simple forms-based user interface. If you want to connect to a remote site using leased line WAN links see WAN Link”... - Page 34 1-20 1: G HAPTER ETTING TARTED If you are using Windows 95, use the Hyperterminal application and configure it in the same way as described above. Figure 1-8 The Main Menu Screen If the terminal emulator has been correctly configured, pressing [RETURN] displays the Enter Password screen.
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Page 35: About Quick Configuration
About Quick Configuration You can configure the unit to connect to other Novell networks, to bridge to hosts on the same IP network (a network with the same IP network address), to route to a different IP network (an IP network with a different IP network address) and to connect to the Internet or other Point-to-Point Protocol (PPP) router. -
Page 36: Setting The Unit Name
1-22 1: G HAPTER ETTING TARTED Setting the Unit Name Before you configure the unit to connect to any other network, you must first give the unit a name. Enter at the command prompt on the Quick Configuration screen to display the screen illustrated Figure 1-10. -
Page 37: Connecting To A Novell (Ipx) Network
Connecting to a Novell (IPX) Network To connect to a Novell network using FastConnect, enter at the command prompt on the Quick Configuration screen to display the screen illustrated Figure 1-11. Figure 1-11 Connecting To A Novell Network Complete the fields on this screen as follows: Quick Configuration Do you have a local server? Use the [Spacebar] to toggle this field to Yes or No as appropriate. -
Page 38: Connecting To An Ip Host On The Same Ip Network
1-24 1: G HAPTER ETTING TARTED Connecting to an IP Host on the Same IP Network To connect to an IP host on the same network using FastConnect, enter at the command prompt on the Quick Configuration screen to display the screen illustrated in Figure 1-12. -
Page 39: Connecting To An Ip Host On A Different Ip Network
To avoid this situation you can also configure the units at both ends of the link to implement a Firewall and/or set the Maximum Call Duration in the ISDN parameters screen to reduce the amount of traffic permitted to pass across the link. See the Software Reference guide for more information about these features. - Page 40 1-26 1: G HAPTER ETTING TARTED Remote ISDN Number Type the ISDN number of the remote unit that connects to the remote IP network. Call Type Set the Call Type for each ISDN number. Use 64k Unrestricted for Euro ISDN lines. Use 56k V.110 or 56k_restricted in the USA depending on the requirements of your ISDN service provider.
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Page 41: Connecting To The Internet Or A Ppp Router
Connecting to the Internet or a PPP Router To connect to an Internet router or to a router using Point-to-Point Protocol (PPP), enter command prompt on the Quick Configuration screen to display the screen illustrated in Figure 1-14 Connecting To The Internet Or PPP Router Complete the fields on this screen as follows: If you are connecting to the Internet, your service provider will be able to give you the correct values for... - Page 42 1-28 1: G HAPTER ETTING TARTED IP Address of this end of the ISDN link By default this field is set to UNNUMBERED which allows unnumbered links to be used. This options is suitable for most network configurations. See more information about numbered and unnumbered links.
- Page 43 3Com – 3Com NETBuilder router. Cisco – Cisco router. Ascend – Ascend router. Spider – Spider/Shiva router. If you are connecting to a Spider/Shiva router, you need also to edit the ISDN port’ s configuration and set the PAP field in the LCP Configuration screen to Incoming.
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Page 44: Monitoring Isdn Line Usage
1-30 1: G HAPTER ETTING TARTED Monitoring ISDN Line Usage After you have first configured the unit for use with ISDN, it is important to monitor ISDN line usage to ensure that the unit is working in the way you expect. Check the ISDN 1 and ISDN 2 LEDs to ensure that unexpected calls are not being made or that connections are not remaining open when you... - Page 45 If you are routing, edit the Port IP address to set it to or to a valid IP address for the UNNUMBERED WAN link. Appendix A for more information about using numbered and unnumbered links. If you are bridging, leave this field at the default setting.
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Page 46: Examples Of Typical Isdn Networking Applications
1-32 1: G HAPTER ETTING TARTED Examples of Typical ISDN Networking Applications This section describes four of the most common applications of the OfficeConnect Remote. All of these configurations can be carried out using the Quick Configuration option and no further configuration is necessary to make the unit operational. - Page 47 disconnected. In this way ISDN calls are kept to a minimum. Figure 1-16 Connecting to a Remote Novell Network In the example shown in Figure connected to a Remote Site. The Local Site shown has several workstations and a server but could equally consist solely of workstations or even a single workstation (such as in the case of a homeworker).
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Page 48: Ip Host On The Same Ip Network
1-34 1: G HAPTER ETTING TARTED IP Host on the Same IP Network If your organization operates a TCP/IP network and needs to extend the IP network over geographically remote sites, it is possible to bridge the network using the OfficeConnect Remote. It is only possible to bridge where both sites have the same network address and the devices are on the same subnet. -
Page 49: Ip Host On Another Ip Network
several IP hosts to generate autocalls to the remote site. When combined with the problem described above, you could find your ISDN line permanently connected. To avoid this situation you need to be sure that no devices or applications exist on your local site that could make unnecessary and costly calls to your remote site. -
Page 50: Internet Or Ppp Router
1-36 1: G HAPTER ETTING TARTED Internet or PPP Router Some small businesses need high-speed connections into the Internet or need to connect to large global networks used by larger organizations. When communicating with another OfficeConnect Remote, the unit uses FastConnect, its own proprietary high speed protocol. - Page 51 Examples of Typical ISDN Networking Applications 1-37 Figure 1-19 PPP Connections to the Internet and Corporate Network...
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Page 52: Multiple Connections From A Single Site
1-38 1: G HAPTER ETTING TARTED Multiple Connections from a Single Site In some instances it is likely that you will need to connect to Novell servers on one site, IP hosts on the same remote site or possibly a different remote site and a connection into the Internet. -
Page 53: Troubleshooting
In the unlikely event that you experience problems with the unit, the following procedure will enable you to undertake basic troubleshooting before contacting your 3Com reseller. Troubleshooting Malfunction Remedy If you cannot... - Page 54 If the LEDs fail to unit. light in accordance with their function (refer your supplying 3Com reseller. The local unit a) Check the connections between the unit, does not connect to the remote b) Confirm that the line is working by unit.
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Page 55: Ridging And
RIDGING AND Introduction During the initial configuration of the OfficeConnect Remote you must decide whether to configure the unit as a bridge or as a router although we may help you with this choice with our Quick Configuration options. If you are unsure which option you should choose, read this appendix to help you decide. -
Page 56: Guidelines For Choosing Bridging Or Routing
RIDGING AND OUTING Guidelines For Choosing Bridging or Routing The list below outlines some of the reasons why you might choose to configure the OfficeConnect Remote as a bridge or a router. Read through the rest of this appendix for more explanation and to help decide which of the above conditions apply to your network. -
Page 57: Bridging Between Remote Sites
local LAN because it does not recognize the destination station as local. However, if the destination device is on the local LAN, once it replies to the original source station, its own source address is part of the data frame and it is learned by the bridge and added to the address table. -
Page 58: Building A Larger Network
RIDGING AND OUTING Figure A-1 Simple Remote Bridging The OfficeConnect Remote uses FastConnect, its own protocol, to ensure the most efficient connection with other OfficeConnect Remote units. However, if you are connecting to a different type of bridge/router the standard PPP communications protocol is required to establish the link. -
Page 59: Multiple Paths Between Bridged Lans
Bridging and Routing Concepts Multiple Paths Between Bridged LANs With only a single physical path between LANs, the network is susceptible to link and bridge failures. In the event of a failure, the connection between any of the LANs upstream or downstream of the point of failure will be broken. -
Page 60: Network Topology
RIDGING AND OUTING Network Topology If your network topology is star shaped, a combination of ISDN and bridging is usually the most efficient and successful option. Routing is a better solution if your network topology is a complex mix of both leased line and ISDN circuits, running at 64 Kbps to 2 Mbps. -
Page 61: Network Organization, Structure And Physical Layout
Network Organization, Structure and Physical Layout Some organizations are structured into departments determined by the physical layout of their work environment, so it is natural to divide the corporate network into separate logical networks. Routing becomes the obvious candidate for handling these individual LANs. - Page 62 RIDGING AND OUTING It is important to understand that in a bridged network the addressing structure for both IP and IPX relates to a single network. If the units in were bridges and not routers, then an IP node on LAN A could, for example, have an address 140.56.10.0, the node on LAN B an address 140.56.10.2, and the node on LAN C, an address of...
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Page 63: Ip Routing
A routing environment allows stations to communicate indirectly. Following the example in Figure assume that a station on LAN 1 wants to communicate with a network server on LAN 2. The station on LAN 1, constructs a Layer 2 datalink header (see with the source station’... - Page 64 A-10 RIDGING AND OUTING Different protocols use differing network characteristics or metrics when making routing decisions. The metric employed by RIP is a Hop Count. A hop count is defined by the number of routing nodes there are between the source and destination units.
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Page 65: Ipx Routing
IPX Routing Novell IPX also uses RIP for routing purposes. Although it is similarly named to the IP equivalent, it uses a different protocol. IPX RIP broadcasts datagrams out onto the network every sixty seconds. Upon receipt of a RIP datagram, a router adds one to the hop count of each route advertised and broadcasts a RIP datagram to the other networks, with which it is connected. -
Page 66: Ip Addresses
A-12 RIDGING AND OUTING IP Addresses TCP/IP Numbering and subnet masking IP numbers or addresses are normally made up of four fields (normally called bytes), with each byte having a whole number value of between 0 and 255, and the bytes separated by a full stop. - Page 67 Subnet Masking Subnet Masking is a mechanism which can be enabled in computer and communications equipment which tells the equipment and the network, which parts of the IP address are to be used as the Network identifier and which are the Host identifier.
- Page 68 A-14 RIDGING AND OUTING Obtaining an IP Address If you want to use a unique IP addressing system on your network so you can connect to the Internet, there are three organizations responsible for allocating network addresses. These details are correct at the time of printing but may change.
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Page 69: Numbered And Unnumbered Links
Admin. Contact: Nakayama, Masaya (MN89) Telephone: +81 3 3812 211 ext2720 e-mail: nakayama@nic.ad.jp Technical Contact: Conrad, David (DC296) Telephone: 81 3 3580 3781 or 3580 Fax: 81 3 3580 3782 e-mail: davidc@apnic.net Numbered and Unnumbered Links When routing and using the OfficeConnect Remote’s FastConnect protocol over ISDN or serial WAN links as opposed to PPP, you have the option of using numbered or unnumbered links. - Page 70 A-16 RIDGING AND OUTING...
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Page 71: B Technical Information
ECHNICAL Specifications LAN Connector Interfaces 10Base2 via a coaxial connector. 10BaseT via an RJ45 connector socket for UTP. Only one LAN connection can be used at a time WAN Connector Interface 25-way D-type female connector, configured to support one of: V.11 (X.21) for speeds up to 2.048 Mbps. -
Page 72: Bridge Characteristics
ECHNICAL NFORMATION Bridge Characteristics 802.3 MAC layer bridge. 802.1D spanning tree algorithm. Support for bridge triangulation and link load sharing. Performance LAN filtering rate: 10000 frames per second. LAN forwarding rate: 4000 frames per second. ISDN and WAN forwarding rates are dependent on the link speed. -
Page 73: Fcc Requirement
FCC Requirement This product has been verified to comply with the limits of Class B computing device pursuant to Subpart J of Part 15 of the FCC Rules. WARNING: This product generates and uses radio frequency energy and, if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio or television reception. -
Page 74: Dimensions
ECHNICAL NFORMATION Dimensions... -
Page 75: Support
The following signalling characteristics should be observed when purchasing or fabricating a suitable cable. Interface Cable Characteristics Signal name Links 3Com end pin no. (25-way male) Transmit Data A (TXDA) 2 Receive Data (RXDA) -
Page 76: Support
Receive Clock (RXCLK 115) 17 Analog Loop Test (141) Data Terminal Ready (DTR 108) Remote Digital Loop Test (140) Ring Indicator (RI 125) External Clock (EXCLK) If clock signals are required, connect Pin 24 to Pins 15 & 17 at the 3Com end only. -
Page 77: Support
48 Kbps. The WAN port connecting cable is not supplied with the unit. The following signalling characteristics should be observed when purchasing or fabricating a suitable cable. Signal name Links 3Com end pin no. (25-way male) Transmit Data (TXD 103) Receive Data (RXD 104) -
Page 78: Manager Port Connecting Cable
9-pin male/female D-type connector or 25-pin D-type male/female connector. The pin-out tables below show the pin outs for both variants. Signal Name Pin Signal Name 3Com end Links pin no. (9-way male connector) Shell... -
Page 79: Modem Cable
This connects the manager port’s 9 pin D-type connector to a 25-pin serial port on a modem. Signal Name Pin Signal Name 3Com end Links pin no. (9-way male connector) Shell... -
Page 80: Ordering Information
B-10 ECHNICAL NFORMATION Ordering Information 3C410000 OfficeConnect Remote 510s 3C410005 OfficeConnect Remote 520s 3C4100010 OfficeConnect Remote 530s 3C4100015 OfficeConnect Remote 510u 3C4100020 OfficeConnect Remote 520u 3C4100025 OfficeConnect Remote 530u 3C16740 Power adapter (US) 3C16741 Power adapter (UK) 3C16742 Power adapter (Mainland Europe) 3C16743 Power adapter (Japan) 3C16744... - Page 81 LOSSARY 10Base2 An IEEE standard for using IEEE 802.3 protocol at 10 Mbps over thin Ethernet cable. 10Base5 An IEEE standard for using IEEE 802.3 protocol at 10 Mbps over thick Ethernet cable. 10BaseT An IEEE standard for using IEEE 802.3 protocol at 10 Mbps over unshielded twisted-pair cable (the T stands for twisted pair).
- Page 82 C: G HAPTER LOSSARY B Channel A digital data communications channel running at 64 Kbps. The basic rate ISDN 2 service carries two B channels plus one control D channel. Refer to ISDN and D Channel. Backbone A network cabling segment that interconnects a group of network segments or systems.
- Page 83 CHAP Challenge Handshake Authentication Protocol. Part of the PPP protocol to ensure authentication of the connection between two devices. Class Type of IP address. IP addresses fall into three main classes, A, B and C. Client A user whom is making use of a particular system resource or peripheral through a workstation attached to a local or wide area network.
- Page 84 C: G HAPTER LOSSARY Datagram A message that is sent from one computer or device to another to confirm it location or status on a network. Data link layer The second layer of the OSI reference model. This layer is responsible for controlling message traffic.
- Page 85 Frame The method by which a data packet is constructed to be sent across a network. Usually assembled with header and footer information. Gateway Another name for a router on a network. HDLC High-level Data Link Control. OSI’s bit orientated protocol. Hop count The number of routing nodes between a source and destination device on a LAN or WAN.
- Page 86 C: G HAPTER LOSSARY MAN Metropolitan area network, a network that covers a city. MIB Management information base. NETBIOS Network Basic Input/Output System, a standard for supporting network communications that is independent of the underlying network transport type. NetWare Novell’s Network Operating System (NOS) line.
- Page 87 Physical layer The first layer of the OSI network layer model. This layer manages the transfer of individual bits of data over wires, or whatever medium, that is used to connect workstations and peripherals. Polling A method of controlling terminals on a multi-point network where each device is interrogated, in turn, to determine if the device is ready to receive or transmit data.
- Page 88 C: G HAPTER LOSSARY SNMP Simple network management protocol, a software program to allow the remote management of bridge and routing devices. Static Route A route you have entered and made permanent rather than a route that the unit has learned by connecting to other routers.
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Page 89: On-Line Technical Services
World Wide Web site 3Com Bulletin Board Service 3ComBBS contains patches, software, and drivers for all 3Com products, as well as technical articles. This service is available via modem or ISDN seven days a week, 24 hours a day. Access by Modem To reach the service by modem, set your modem to 8 data bits, no parity, and 1 stop bit. -
Page 90: World Wide Web Site
Details about recent configuration changes, if applicable. If you are unable to contact your network supplier, see the following section on how to contact 3Com. Support from 3Com If you are unable to receive support from your network supplier, technical support contracts are available from 3Com. -
Page 91: Returning Products For Repair
(1) (408) 492 1790 * These numbers are toll free Returning Products for Repair A product sent directly to 3Com for repair must first be assigned a Return Materials Authorization (RMA) number. A product sent to 3Com without an RMA number will be returned to the sender unopened, at the sender’s expense. - Page 92 ECHNICAL UPPORT...
- Page 93 Numerics 10Base2 1-9 connections 1-14 10BaseT connections 1-13 crossover 1-9 port 1-9 3Com Bulletin Board Service (3ComBBS) D-1 3Com sales offices D-2 ALERT LED 1-6 bridging and routing concepts A-1 bulletin board service D-1 clipping hubs together 1-11 clips 1-11...
- Page 94 10Base2 connections 1-14 10BaseT connections 1-13 10BaseT port 1-9 LEDs Alert 1-6 ISDN OK 1-7 ISDN1 1-7 ISDN2 1-7 LINK STATE 1-7 Network Utilization 1-7 POWER 1-6 SERIAL WAN 1-7 VOICE 1-7 LINK STATE LED 1-7 management configuring your unit 1-17 port 1-8 MDI/MDIX switch 1-9 network supplier support D-2...
- Page 95 SOFTWARE: 3Com warrants that the software programs licensed from it will perform in substantial conformance to the program specifications therefor for a period of ninety (90) days from the date of purchase from 3Com or its Authorized Reseller. 3Com warrants the magnetic media containing software against failure during the warranty period.
- Page 96 The statement on page 4 of the About This Guide section in the OfficeConnect Remote User Guide, stating that the ISDN cable must be used in conjunction with a three turn ferrite to meet Class B of EN 55022, no longer applies. © 3Com Europe Limited, December 1996 FFICE ONNECT UPPLEMENTARY...