3Com 510, 520, 530 manual Chapter C Glossary

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C-4 CHAPTER C: GLOSSARY

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.

Data packet (packet) A sequence of binary digits, including data and control signals that is transmitted across a LAN or WAN.

DCE Data circuit-terminating equipment.

DTE Data Terminal Equipment. The physical interface and link access procedures between DTE and data circuit-terminating equipment (DCE).

DTMF Dial tone multi-frequency, the signalling system used by PSTN. Refer to PSTN.

Downloading A user initiated transfer of data from a server to the user’s own workstation. Also used to classify the transfer of files from one system to another, usually to upgrade or revise system software.

EPROM Erasable programmable read-only memory. A chip whose memory can be erased and reused.

Ethernet A 10 Mbps baseband local area network protocol, compatible with IEEE 802.3 standards.

FastConnect The OfficeConnect Remote’s proprietary connection protocol that allows fast connection between units either over the ISDN link or over a permanent leased line WAN link.

Fiber optics A technology that uses laser light pulses, sent over thin glass fibres, which is able to deliver data at speed up to several gigabits per second.

File server A computer running a special operating system that allows workstations to access files.

Filter A configuration that removes types of data frames based on user-entered parameters.

Firewall A method of preventing unauthorized access to a network or a host on a network. A firewall is usually implemented within a router’s software.

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Contents Officeconnecttm Remote User Guide3Com Corporation 5400 Bayfront Plaza Santa Clara, California Important Safety Information Disconnect the power adapter before moving the unitWichtige Sicherheitshinweise WAN = Selv’INFORMATION DE Sécurité Importante Page Contents Specifications B-1 Management Connector Interface B-1Dimensions B-4 WAN Port Connecting Cable V.11/X.21Index Page How to Use This Guide This table shows where to find specific informationAbout this Guide IntroductionConventions Icon conventions that are used throughout this guide areText conventions used in this guide are Additional Safety Information Additional Safety InformationAbout this Guide OfficeConnect Remote Features Getting StartedGetting Started Easy to install, configure and support Benefits of IsdnPack Contents Checklist Pre-installation Requirements Registering Ownership Of Your OfficeConnect RemoteOfficeConnect Remote Front and Rear Panel Features Front PanelQuick flash Self test or software loading during power up Getting Started Rear Panel WAN OfficeConnect Remote 520 and 530 only Introduction Installation Using the Rubber Feet and Stacking ClipsSiting the OfficeConnect Remote To prolong the operational life of your equipmentWall Mounting the OfficeConnect Remote Clipping Your Units TogetherConnecting the Power Adapter Connecting to Your 10BaseT LANConnecting to a Single Workstation To connect the OfficeConnect Remote to in-house LANConnecting to Your 10Base2 LAN Counter-clockwise to unlock it and remove itConnecting to Isdn Connecting to the WANConnecting to the Voice Port Connecting a Management Terminal Location of OfficeConnect Fax and Print ServersQuick Configuration Starting Quick ConfigurationAt the command prompt enter QC Main Menu ScreenAbout Quick Configuration Setting the Unit Name Connecting to a Novell IPX Network Complete the fields on this screen as followsPress CTRL+E to submit this information Connecting to an IP Host on the Same IP Network 12 Connecting To An IP Host On The Same NetworkConnecting to an IP Host on a Different IP Network 13 Connecting to an IP Host on a Different NetworkPress CTRL+E to submit this information Connecting to the Internet or a PPP Router 14 Connecting To The Internet Or PPP RouterGetting Started Password is case-sensitive Press CTRL+E to save this informationSetting Up a WAN Link Monitoring Isdn Line UsageSetting Up a WAN Link Examples of Typical Isdn Networking Applications Novell NetworkDisconnected. In this way Isdn calls are kept to a minimum Examples of Typical Isdn Networking ApplicationsIP Host on the Same IP Network 192.000.000.xxxIP Host on Another IP Network Internet or PPP Router 18 IP routed network19 PPP Connections to the Internet and Corporate Network Multiple Connections from a Single Site 20 Multiple Connections from a Single SiteTroubleshooting TroubleshootingSoftware Reference guide for more Bridging and Routing Bridging and Routing ConceptsGuidelines For Choosing Bridging or Routing How Bridges LearnBridging Between Remote Sites Bridging and Routing ConceptsBuilding a Larger Network Multiple Paths Between Bridged LANs Figure A-2 Multiple Remote BridgesNetwork Topology Broadcast StormsOptimum Use of Resource Routing IP and IPX Network Organization, Structure and Physical LayoutInternet Figure A-4 Open Systems Interconnection Network Layer Model IP Routing Bridging and Routing IPX Routing Routing IP and IPX A-11IP Addresses Class CSubnet Masking Mask, for exampleUSA InterNIC, Network Solutions Huntmar park DriveHerndon KruislaanNumbered and Unnumbered Links Bridging and Routing Specifications Technical InformationBridge Characteristics ApprovalsPerformance FCC Requirement Dimensions Interface Cable Characteristics WAN Port Connecting Cable V.11/X.21 SupportWAN Port Connecting Cable V.24/V.28 Support WAN Port Connecting Cable V.35/V.36 Support Manager Port Connecting Cable LAN Port Connecting Cable 10BaseT Modem CableOrdering Information 100BaseVG An Ieee standard for using the new Ieee GlossaryChapter C Glossary Page Chapter C Glossary Page Chapter C Glossary Page Topology The way that a network is physically laid out On-line Technical Services 3Com Bulletin Board ServiceTechnical Support Support from Your Network Supplier Support from 3ComWorld Wide Web Site Returning Products for Repair To obtain an RMA number, call or faxTechnical Support Index NumericsLAN Limited Warranty EMC Update OfficeConnect Remote