Connecting Network Components Page 1 of 55
Total Page:16
File Type:pdf, Size:1020Kb

Load more
Recommended publications
-
1) What Is the Name of an Ethernet Cable That Contains Two
1) What is the name of an Ethernet cable that contains two electrical conductors ? A coaxial cable 2) What are the names of the two common conditions that degrade the signals on c opper-based cables? Crosstal and attenuation 3) Which topology requires the use of terminators? Bus 4) Which of the following topologies is implemented only logically, not physical ly? Ring 5) How many wire pairs are actually used on a typical UTP Ethernet network? Two 6) What is the name of the process of building a frame around network layer info rmation? Data encapsulation 7) Which of the connectors on a network interface adapter transmits data in para llel? The System bus connector 8) Which two of the following hardware resources do network interface adapters a lways require? I/O port address and IRQ 9) What is the name of the process by which a network interface adapter determin es when it should transmit its data over the network? Media Access Control 10) Which bus type is preferred for a NIC that will be connected to a Fast Ether net network? PCI 11) A passive hub does not do which of the following? Transmit management information using SNMP 12) To connect two Ethernet hubs together, you must do which of the following? Connect the uplink port in one hub to a standard port on the other 13) Which term describes a port in a Token Ring MAU that is not part of the ring ? Intelligent 14) A hub that functions as a repeater inhibits the effect of____________? Attenuation 15) You can use which of the following to connect two Ethernet computers togethe r using UTP -
Gigabit Ethernet - CH 3 - Ethernet, Fast Ethernet, and Gigabit Ethern
Switched, Fast, and Gigabit Ethernet - CH 3 - Ethernet, Fast Ethernet, and Gigabit Ethern.. Page 1 of 36 [Figures are not included in this sample chapter] Switched, Fast, and Gigabit Ethernet - 3 - Ethernet, Fast Ethernet, and Gigabit Ethernet Standards This chapter discusses the theory and standards of the three versions of Ethernet around today: regular 10Mbps Ethernet, 100Mbps Fast Ethernet, and 1000Mbps Gigabit Ethernet. The goal of this chapter is to educate you as a LAN manager or IT professional about essential differences between shared 10Mbps Ethernet and these newer technologies. This chapter focuses on aspects of Fast Ethernet and Gigabit Ethernet that are relevant to you and doesn’t get into too much technical detail. Read this chapter and the following two (Chapter 4, "Layer 2 Ethernet Switching," and Chapter 5, "VLANs and Layer 3 Switching") together. This chapter focuses on the different Ethernet MAC and PHY standards, as well as repeaters, also known as hubs. Chapter 4 examines Ethernet bridging, also known as Layer 2 switching. Chapter 5 discusses VLANs, some basics of routing, and Layer 3 switching. These three chapters serve as a precursor to the second half of this book, namely the hands-on implementation in Chapters 8 through 12. After you understand the key differences between yesterday’s shared Ethernet and today’s Switched, Fast, and Gigabit Ethernet, evaluating products and building a network with these products should be relatively straightforward. The chapter is split into seven sections: l "Ethernet and the OSI Reference Model" discusses the OSI Reference Model and how Ethernet relates to the physical (PHY) and Media Access Control (MAC) layers of the OSI model. -
Twisted-Pair Cable (Cat
1 LAN Physical Layer Various symbols are used to represent media types. The function of media is to carry a flow of information through a LAN. Networking media are considered Layer 1, or physical layer, components of LANs. Each media has advantages and disadvantages. Some of the advantage or disadvantage comparisons concern: • Cable length • Cost • Ease of installation • Susceptibility to interference Coaxial cable, optical fiber, and even free space can carry network signals. However, the principal medium that will be studied is Category 5 unshielded twisted-pair cable (Cat 5 UTP) 2 Cable Specifications 10BASE-T The T stands for twisted pair. 10BASE5 The 5 represents the fact that a signal can travel for approximately 500 meters 10BASE5 is often referred to as Thicknet. 10BASE2 The 2 represents the fact that a signal can travel for approximately 200 meters 10BASE2 is often referred to as Thinnet. All 3 of these specifications refer to the speed of transmission at 10 Mbps and a type of transmission that is baseband. Thinnet and Thicknet are actually a type of networks, while 10BASE2 & 10BASE5 are the types of cabling used in these networks. 3 Unshielded Twisted Pair (UTP) Cable 4 Physical Media Unshielded Twisted Pair (UTP) Consists of 4 pairs (8 wires) of insulated copper wires typically about 1 mm thick. The wires are twisted together in a helical form. Twisting reduces the interference between pairs of wires. High bandwidth and High attenuation channel. Flexible and cheap cable. Category rating based on number of twists per inch and the material used CAT 3, CAT 4, CAT 5, Enhanced CAT 5 and now CAT 6. -
Networking Fundamentals
SMB University: Selling Cisco SMB Foundation Solutions Networking Fundamentals © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-1 Objectives • Describe the function and operation of a hub, a switch and a router • Describe the function and operation of a firewall and a gateway • Describe the function and operation of Layer 2 switching, Layer 3 switching, and routing • Identify the layers of the OSI model • Describe the functionality of LAN, MAN, and WAN networks • Identify the possible media types for LAN and WAN connections © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-2 What is a Network? • A network refers to two or more connected computers that can share resources such as data, a printer, an Internet connection, applications, or a combination of these resources. © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-3 Types of Networks Local Area Network (LAN) Metropolitan Area Network (MAN) Wide Area Network (WAN) © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-4 WAN Technologies Leased Line Synchronous serial Circuit-switched TELEPHONE COMPANY Asynchronous serial. ISDN Layer 1 © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-5 WAN Technologies (Cont.) Frame-Relay Synchronous serial SERVICE PROVIDER Broadband Access SERVICE PROVIDER Cable, DSL, Wireless WAN © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-6 Network Topologies: Bus Topology SEGMENT Terminator Terminator © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-7 Network Topologies: Star Topology Hub © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-8 Network Topologies: Extended Star Topology © 2006 Cisco Systems, Inc. All rights reserved. SMBUF-9 The OSI Model— Why a Layered Network Model? • Reduces complexity Application 7 • Standardizes interfaces Presentation • 6 Facilitates modular engineering • Ensures interoperable technology Session 5 • Accelerates evolution Transport • 4 Simplifies teaching and learning Network 3 Data Link 2 Physical 1 © 2006 Cisco Systems, Inc. -
Datacomm Products and Equipment Catalog
DataComm Products and Equipment Catalog IDEAL DataComm 112060_DataComm08_COVER.indd2060_DataComm08_COVER.indd 2 11/8/08/8/08 99:41:29:41:29 AAMM The way every job should be IDEAL DataComm is dedicated to helping low voltage/datacomm professionals keep networks up and running. The system of products we have thoughtfully crafted ensures the highest-quality terminations with the ease-of-use you would expect from IDEAL. Our DataComm line includes a system solution for paired conductor, coax and fiber optic cabling. www.idealindustries.com Paired Conductor Products Wire Cutters . A-2 A Wire Strippers . .A-2 Crimp Tools . A-4 Punch Down Tools . A-5 Tool and Connector Kits . A-5 Wall Plates . A-9 Cables . .A-10 Connectors . A-10 Coaxial Termination Products Tool Selection Chart . B-2 B Wire Cutters . B-3 Wire Strippers . B-3 Crimp Tools . B-4 Compression Tools . .B-6 Connectors . B-7 Splitters . .B-8 Wall Plates . B-8 Tool and Connector Kits . B-9 BNC Coaxial Connectors . .B-12 Fiber Optic Products Wire Strippers . C-2 C Fiber Optic Accessories . C-3 Table of Contents Table Test Equipment Qualification Testers . .D-2 D Certification Testers . D-4 Hand-Held Testers . D-7 Related Products Resources . E-1 E Multi Media Installation Guide . .E-3 Technical Information . .E-12 Residential Coax Application Guide . .E-13 Index Alphabetical Index . F-1 F Catalog Number Index . F-3 For applicable GSA Contracts — contact IDEAL at 800-947-3614 New Products Mini Coax Stripper Grounding Block Q Adjustable stripper for Q Solid zinc alloy, mini coax cable nickel plated and Page B-3 chromate finished Page B-8 OmniSeal™ Pro Compression Tools Q Compression tools now offer additional features and increased connector Compression Connector compatibility Installation Kit Page B-6 Q Three tools in one handy pouch that clips easily to your belt. -
Lan.Wiring.Jim.Trulove.Pdf
LAN Wiring This page intentionally left blank LAN Wiring Third Edition James Trulove McGraw-Hill New York Chicago San Francisco Lisbon London Madrid Mexico City Milan New Delhi San Juan Seoul Singapore Sydney Toronto Copyright © 2006 by James Trulove. All rights reserved. Manufactured in the United States of America. Except as permit- ted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher. 0-07-148345-4 The material in this eBook also appears in the print version of this title: 0-07-145975-8. All trademarks are trademarks of their respective owners. Rather than put a trademark symbol after every occurrence of a trademarked name, we use names in an editorial fashion only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. Where such designations appear in this book, they have been printed with initial caps. McGraw-Hill eBooks are available at special quantity discounts to use as premiums and sales promotions, or for use incor- porate training programs. For more information, please contact George Hoare, Special Sales, at george_hoare@mcgraw- hill.com or (212) 904-4069. TERMS OF USE This is a copyrighted work and The McGraw-Hill Companies, Inc. (“McGraw-Hill”) and its licensors reserve all rights in and to the work. Use of this work is subject to these terms. Except as permitted under the Copyright Act of 1976 and the right to store and retrieve one copy of the work, you may not decompile, disassemble, reverse engineer, reproduce, modify, create derivative works based upon, transmit, distribute, disseminate, sell, publish or sublicense the work or any part of it without McGraw-Hill’s prior consent. -
L8: Physical Media Properties
LE/EECS 3213 Fall 2014 L8: Physical Media Properties Sebastian Magierowski York University EECS 3213, F14 L8: Physical Media 1 Outline • Key characteristics of physical media – What signals in media are made out of – Delay through media – Attenuation through media – Frequency response of media • Twisted Pair • Coax • Optical • Wireless EECS 3213, F14 L8: Physical Media 2 (‘-. & 0 _1 ‘j ‘3 3 \r (-i) IL I C I’ t —..-- 1 $ Js L8: Physical Media 8.1 Signal Particles 8.1 SignalParticles Electrons throughmetal Photons throughglass and air • • EECS 3213, F14 Communications Systems & EM Spectrum • Frequency of communications signals Optical Analog DSL WiFi Cell fiber telephone phone Frequency (Hz) 102 104 106 108 1010 1012 1014 1016 1018 1020 1022 1024 X-rays Broadcast radio Powerand telephone Microwave radio Visible light Visible Gammarays Infraredlight Ultraviolet light 106 104 102 10 10-2 10-4 10-6 10-8 10-10 10-12 10-14 Wavelength (meters) EECS 3213, F14 L8: Physical Media 4 8.2 Delay Communication channel d meters t = 0 t = d/c • Propagation speed of signal – c = 3 x 108 meters/second in vacuum – v = c/√ε speed of light in medium • ε>1 is the dielectric constant of the medium • v = 2.3 x 108 m/sec in copper wire • v = 2.0 x 108 m/sec in optical fiber EECS 3213, F14 L8: Physical Media 5 j c • II 1’ i 0 8.2 Attenuation (1 • Usually the signal power that comes out your channel is less than the signal power that comes in your channel 2 – Attenuation = |Ac| = Pin/Pout • Can also think of it in terms of the channel’s frequency‘‘ response (aka transfer function) 2 – |Hc| = Pout/Pin .4 1 ‘ .4 I - 4 — 1 V EECS 3213, F14 L8: Physical Media 1 6 4 Summary: Attenuation in Wired and Wireless • Attenuation varies with media – Dependence on distance of central importance • Wired media attn. -
KNOW the LINGO – WHAT IS Category CABLE?
KNOW THE LINGO – WHAT IS CategoRY CABLE? By: Joseph D. Cornwall, CTS-D Technology Evangelist—Lastar, Inc. Technical lingo is a kind of shorthand that’s used to express concepts common to that specific topic or area of study. Technical lingo is important because it provides a very precise or unique “shorthand” description of a device, effect or concept. Unfortunately, if you aren’t comfortable and familiar with the lingo of a topic it can be a tall hurdle to communicate efficiently with folks who consider the jargon of their field to be “self-explanatory.” In this series of articles we’ll lift the veils of misunderstanding from the lingo of the A/V industry. WHAT IS A CAT CABLE? The concept of Category cables was first set forth by the Electronic Industries Alliance (EIA) and is now maintained by the Telecommunications Industry Association (TIA). In 1991 the TIA/EIA-568-A standard was released (now revised to TIA/EIA-568-C) in an effort to define standards for telecommunications installations. In particular, the standard worked to define elements of balanced twisted pair cabling, fiber optic cabling and coaxial cabling, along with the associated connectors. The Cat cables discussed here are of the unshielded twisted pair (UTP) variety. You can’t be in the A/V or IT industry and not have heard of Cat5e and Cat6 cables. The Cat, as you might know, is short for “Category.” The term “Category” refers to the different levels of performance in signal bandwidth, attenuation and crosstalk associated with each cable’s design. -
Twisted-Pair Cable • UTP—Unshielded Twisted-Pair • STP—Shielded Twisted-Pair
The NIC must match the Address/Data Bus of the computer. ISA PCI 55 Installing the NIC in the computer. • NIC installed inside the computer. • Normally plugs into a bus slot. • Some are built right into the motherboard. • Plug-in boards must be configured correctly. 56 NIC Configuration Methods • Plug-and-Play • EEPROM • Jumper pins 57 Preparing to Install the NIC • Ensure there is an open bus slot. • Ensure the adapter is compatible. • Ensure there are system resources available. • Ensure all installation items are available. • Ensure all software is available. 58 Installing the NIC Hardware • Configure the NIC to available resources. • Use a ground strap. • Remove cover from the computer. • Remove rear panel slot cover plate. • Remove card from its antistatic bag and immediately plug it into motherboard. • Secure card slot cover plate to computer.59 Installing the NIC Software • Loading the device driver used by the NIC. • Loading any utilities supplied with the NIC. 60 NIC Device Driver • Supports communication between the NIC and OS. • Automatically installed and configured if both NIC and OS support PnP. • In other cases, driver loaded from floppy or CD supplied with NIC. 61 A more recent device driver may be available at the website of the NIC manufacturer. 62 Troubleshooting the NIC • Is NIC talking to the motherboard? • Is the NIC working internally? • Is the NIC communicating with the external network? 63 LEDs Link Activity 64 Twisted-Pair Cable • UTP—Unshielded Twisted-Pair • STP—Shielded Twisted-Pair 65 Twisted-Pair Cable Foil Foil Shield Wire Shield Braid Shield STP UTP STP 66 10BaseT Ethernet uses Unshielded Twisted Pair (UTP) cable. -
Chapter 1: Roadmap
Chapter 1: roadmap 1.1 What is the Internet? 1.2 Network edge 1.3 Network core 1.4 Network access and physical media 1.5 Internet structure and ISPs 1.6 Delay & loss in packet-switched networks 1.7 Protocol layers, service models 1.8 History Introduction 1-1 Access networks and physical media Q: How to connect end systems to edge router? residential access nets institutional access networks (school, company) mobile access networks Keep in mind: bandwidth (bits per second) of access network? shared or dedicated? Introduction 1-2 Residential access: point to point access Dialup via modem up to 56Kbps direct access to router (often less) Can’t surf and phone at same time: can’t be “always on” ADSL: asymmetric digital subscriber line up to 1 Mbps upstream (today typically < 256 kbps) up to 8 Mbps downstream (today typically < 1 Mbps) FDM: 50 kHz - 1 MHz for downstream 4 kHz - 50 kHz for upstream 0 kHz - 4 kHz for ordinary telephone Introduction 1-3 Residential access: cable modems HFC: hybrid fiber coax asymmetric: up to 30Mbps downstream, 2 Mbps upstream network of cable and fiber attaches homes to ISP router homes share access to router deployment: available via cable TV companies Introduction 1-4 Residential access: cable modems Diagram: http://www.cabledatacomnews.com/cmic/diagram.html Introduction 1-5 Cable Network Architecture: Overview Typically 500 to 5,000 homes cable headend home cable distribution network (simplified) Introduction 1-6 Cable Network Architecture: Overview cable headend home cable distribution network -
Substation Automation Systems
2013/04/16 Communication Networks Nicholas Honeth ([email protected]) Contents of the series • Lecture 10 - Recap of the networks we’ve seen so far - OSI model - Circuit and packet switching - Physical media • Lecture 11 - Topologies - Media access techniques - Addressing and routing - Protocols in power systems applications • Workshop 2 - Short recap of lectures 10 and 11 - Delay, loss and throughput - GOOSE Wireshark exercise 1 2013/04/16 Contents of lecture 10 • Recap of the networks we’ve seen so far • Basics of protocols – HTTP example • The OSI model • Packet and Circuit switching • Physical media • What to expect next Some terms and acronyms… MMS UML IED LAN SQL HTTP CIM OO TCP/IP SCADA Ethernet ICD CT/VT SCL FTP HTTP WAN GPS SSD SV GOOSE MAC WAN 2 2013/04/16 Recap Computers and Networks in Power Systems Recap Substation Networks 3 2013/04/16 Recap SCADA Networks Control Center HMI Hydro Plant X State OPF Estimator AGC SCADA SCADA SCADA Front Archive Database Server A Server B End Database Mirror Substations Communication Network Recap SCADA Networks 4 2013/04/16 Recap Integrated Networks Hydro State Plant O A Recap Estim X P G Power Engineers ator F C H Control M Center I SCAD A Subst Databa ation se s Comm Mirror unicati on Networ k 5 2013/04/16 Recap Modern substation Protocol Basics • Basic Protocol • HTTP protocol – example • Wireshark • Some observations from the example 6 2013/04/16 Protocol Basics Basic protocol Server Client Protocol Basics Basic protocol We use these continuously! 7 2013/04/16 Protocol Basics HTTP -
Certified Data Cabling Installer (DCI) Competency Requirements
Certified Data Cabling Installer (DCI) Competency Requirements Data Cabling Installers (DCI) are expected to obtain knowledge of basic concepts of copper cabling installation and service, which are then applicable to all the functions required to safely and competently install communications cabling and low voltage premises cabling. Network cabling has many options now and is being used for many applications in addition to data. Copper cabling is also combined with other media applications to create these networks. Once a DCI has acquired these skills, abilities and knowledge and with minimal training, the DCI should be able to enter employment in the telecommunications cabling field. Data Cabling Installers must be knowledgeable and have abilities in the following technical areas: 1.0 SAFETY 1.1 Describe the various forms of personal protective equipment (PPE) that data cabling technicians have at their disposal 1.2 Explain the safety best practices associated with the work area 1.3 Provide an overview of emergency response information and techniques for the workplace that can be found in Material Safety Data Sheets (MSDS or SDS) described in the Hazard Communication Standard (HCS) (29 CFR 1910.1200(g)), revised in 2012, and detailed in Appendix D of 29 CFR 1910.1200 2.0 BASIC ELECTRICITY 2.1 Describe the relationships between voltage, current, resistance and power 2.2 Identify components called resistors and also non-component types of resistance in cabling technology 2.3 Use Ohm’s law to calculate power usage and power losses in cabling