DOCSLIB.ORG

Understand Network Media Types Part 2

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Understand Network Media Types Part 2 LESSON 2.3_B 98-366 Networking Fundamentals UnderstandUnderstand NetworkNetwork MediaMedia TypesTypes PartPart 22 LESSON 2.3_B 98-366 Networking Fundamentals Lesson Overview In this lesson, you will learn information about: Cabling Category 5e cable Coaxial cable RJ-45 Thicknet cable Thinnet coaxial cable Twisted pair shielded cable Unshielded cable LESSON 2.3_B 98-366 Networking Fundamentals Anticipatory Set 1. Recall what you learned about cables yesterday. 2. On paper list everything you remember about twisted pair cables. 3. Share your answers in a group and present to the class if time allows. LESSON 2.3_B 98-366 Networking Fundamentals Preparing for a Class Activity Students will make a cable at the end of this review using a category 5 cable and RJ-45 terminators. Keep notes on the demonstration and presentation for your cable making. LESSON 2.3_B 98-366 Networking Fundamentals Unshielded twisted pair cable (UTP) y 8 individual copper wires covered by an insulating material y Used for many different networks. y The copper wire is color-coded plastic insulation and they are twisted in pairs. It is all covered with an outer jacket. LESSON 2.3_B 98-366 Networking Fundamentals UTP is the most common form of twisted pair wiring. It is less expensive and easier to work with than STP. It is used in Ethernet 10Base-T and 100Base-T networks, as well as in home and office telephone wiring. Two insulated copper wires are twisted around each other to decrease crosstalk or electromagnetic induction between pairs of wires. Every signal on a twisted pair involves both the wires. Twisted pair is installed in two or more pairs, all within a single cable, to offer multiple connections to computers. UTP cable is typically installed using a registered jack 45 (RJ-45) connector. The RJ-45 is an eight-wire connector used commonly to connect computers onto a local area network (LAN), especially Ethernets. LESSON 2.3_B 98-366 Networking Fundamentals Types of UTP Cabling Category 1—Used for telephone communications Category 2—Data speed at 4 Mbps per second Category 3—Speeds of 10 Mbps, used for 10BASE-T Category 4—For Token Ring – transmit data at 16 Mbps Category 5—Can transmit data at speeds up to 100 Mbps Category 5e —Used in networks running at speeds up to 1000 Mbps (1 gigabit per second [Gbps]) Category 6—Consists of four pairs of 24 American wire gauge (AWG) copper wires and fastest standard for UTP LESSON 2.3_B 98-366 Networking Fundamentals Shielded twisted-pair (STP) Used in Ethernet networking and has shielding, cancellation, and wire twisting with each pair of wires wrapped in a metallic foil The four pairs of wires are wrapped in an overall metallic braid or foil, generally 150-ohm cable. LESSON 2.3_B 98-366 Networking Fundamentals Because of its cost and difficulty with termination, STP is rarely used in Ethernet networks. STP is primarily used in Europe. Because most buildings are already wired with UTP, many transmission standards are adapted to use it, to avoid costly rewiring with an alternative cable type. UTP and STP are not used together. LESSON 2.3_B 98-366 Networking Fundamentals Coaxial cable • Made of a hollow outer cylindrical conductor surrounding a single inner wire made of two conducting elements • One element in the center of the cable is a copper conductor. • A layer of flexible insulation surrounds the copper conductor. • Over the insulation is a metallic foil or woven copper braid acting as both the second wire in the circuit and a shield for the inner conductor . • This second layer/shield helps reduce the amount of outside interference. LESSON 2.3_B 98-366 Networking Fundamentals Coaxial cable can be cheaper for a physical bus topology because less cable will be needed. It is more costly than UTP on a per-unit length and is relatively inexpensive. Coaxial cable is less expensive than fiber optic cable. Can be used over longer distances than twisted-pair cable Ethernet can run approximately 100 meters using twisted-pair cabling. Using coaxial cable increases this distance to 500 meters. Can be run with fewer boosts from repeaters for longer distances between network nodes than either STP or UTP cable LESSON 2.3_B 98-366 Networking Fundamentals Wireless communication Uses radio frequencies (RF) or infrared (IR) waves to transmit data between devices on a LAN Wireless signals are electromagnetic waves that can travel through the vacuum of outer space and through a medium such as air. A key module is the wireless hub for distributing signals through the wireless LAN. A computer can have a wireless adapter card (wireless NIC) installed to receive the signals from the access point. LESSON 2.3_B 98-366 Networking Fundamentals Applications of wireless data communication Accessing the Internet using a cellular phone Establishing Internet connection over satellite Beaming data between two handheld computing devices Wireless keyboard and mouse for the PC Wireless LAN (WLAN) use radio waves (902 MHz) Microwaves (2.4 GHz) IR waves (820 nanometers [nm]) for communication LESSON 2.3_B 98-366 Networking Fundamentals Wireless Distribution LESSON 2.3_B 98-366 Networking Fundamentals LESSON 2.3_B 98-366 Networking Fundamentals Demonstration and Class Activity Preparation y Unshielded twisted pair cable (UTP) cable has eight individual copper wires covered by an insulating material; used for many different networks. y The copper wire is color-coded plastic insulation and the wires are twisted in pairs. It is all covered with an outer jacket. LESSON 2.3_B 98-366 Networking Fundamentals Color coding of wiring pairs LESSON 2.3_B 98-366 Networking Fundamentals Network Cabling Standards The Electronic Industries Alliance (EIA) developed standards in 1991 for the cabling used in telecommunications applications. In 1995 it was updated by the EIA and later replaced with the current TIA/EIA 568-B standard. LESSON 2.3_B 98-366 Networking Fundamentals T568A and T568B Based on TIA/EIA-568-B.1-2001, the wiring schemes define the pin out, or order of connections, for wires in eight-pin modular connector plugs and jacks. LESSON 2.3_B 98-366 Networking Fundamentals The wiring assignments in the RJ-45 plug are important. A colored wire must be placed in a specific pin location in the plug in order for the cable to meet the standard. It is these wiring assignments that differ between the T568A and T568B standard. The only difference between T568A and T568B is that pairs 2 and 3 (orange and green) are swapped. Both configurations wire the pins "straight through," i.e., pins 1 through 8 on one end are connected to pins 1 through 8 on the other end. The same sets of pins are paired in both configurations: pins 1 and 2 form a pair, as do 3 and 6, 4 and 5, and 7 and 8. LESSON 2.3_B 98-366 Networking Fundamentals Cable Termination Cables that are terminated with differing standards on each end will not function normally. Standard RJ-45 pinouts describe the arrangement of the individual wires required when connecting connectors to a cable. RJ-45 is the standard connector for 10Base-T/100Base-TX Ethernet, ISDN, T1, and modern digital telephone systems. LESSON 2.3_B 98-366 Networking Fundamentals Demonstration Steps 1. The pins on the RJ-45 plug are numbered 1 to 8. 2. Hold a CAT 5 patch cable in your hand, as if inserting into a jack, with the contacts facing in the up position; pin 1 will be on the far left. 3. Pin 8 will be the pin on the far right. We follow this orientation when we define the wiring assignments in the RJ-45 plug. 4. CAT 5 Cable has four twisted pairs within the sheath. Each pair has a specific color code, and is placed into deliberate pin location within the RJ-45 plug. 5. In constructing the cable, use identical pin assignments on each end as the 568-B standard is used in the United States. LESSON 2.3_B 98-366 Networking Fundamentals Deciding to use T568 A or T568 B 1. If the installation is residential, choose T568A unless other conditions apply. 2. If there is preexisting voice/data wiring (remodel, moves, adds, changes), duplicate this wiring scheme on any new connection. 3. If project specifications are available, use the specified wiring configuration. 4. If components used within the project are internally wired either T568A or T568B, duplicate this wiring scheme. Circulate and carefully inspect the finished demonstration cable. LESSON 2.3_B 98-366 Networking Fundamentals Student Activity 2.3_B 1. Group in pairs so each person can attach an RJ-45 end to the category 5e cable. 2. View the YouTube video on making a patch cord with RJ-45 terminators and a category 5e cable wire. http://www.youtube.com/watch?v=482VtesZwZ8 3. Complete Student Activity 2.3_B with a partner to construct a cable using the materials provided. LESSON 2.3_B 98-366 Networking Fundamentals Lesson Review 1. Test the cable. 2. Analyze and correct any problems. 3. Detail the testing and correcting process in a written report. 4. Submit to your instructor..
Load more

Recommended publications
  • The Twisted-Pair Telephone Transmission Line
    High Frequency Design From November 2002 High Frequency Electronics Copyright © 2002, Summit Technical Media, LLC TRANSMISSION LINES The Twisted-Pair Telephone Transmission Line By Richard LAO Sumida America Technologies elephone line is a This article reviews the prin- balanced twisted- ciples of operation and Tpair transmission measurement methods for line, and like any electro- twisted pair (balanced) magnetic transmission transmission lines common- line, its characteristic ly used for xDSL and ether- impedance Z0 can be cal- net computer networking culated from manufactur- ers’ data and measured on an instrument such as the Agilent 4395A (formerly Hewlett-Packard HP4395A) net- Figure 1. Lumped element model of a trans- work analyzer. For lowest bit-error-rate mission line. (BER), central office and customer premise equipment should have analog front-end cir- cuitry that matches the telephone line • Category 3: BWMAX <16 MHz. Intended for impedance. This article contains a brief math- older networks and telephone systems in ematical derivation and and a computer pro- which performance over frequency is not gram to generate a graph of characteristic especially important. Used for voice, digital impedance as a function of frequency. voice, older ethernet 10Base-T and commer- Twisted-pair line for telephone and LAN cial customer premise wiring. The market applications is typically fashioned from #24 currently favors CAT5 installations instead. AWG or #26 AWG stranded copper wire and • Category 4: BWMAX <20 MHz. Not much will be in one of several “categories.” The used. Similar to CAT5 with only one-fifth Electronic Industries Association (EIA) and the bandwidth. the Telecommunications Industry Association • Category 5: BWMAX <100 MHz.
    [Show full text]
  • Book IG 1800 British Telecom Rev A.Book
    Notice to Users ©2003 2Wire, Inc. All rights reserved. This manual in whole or in part, may not be reproduced, translated, or reduced to any machine-readable form without prior written approval. 2WIRE PROVIDES NO WARRANTY WITH REGARD TO THIS MANUAL, THE SOFTWARE, OR OTHER INFORMATION CONTAINED HEREIN AND HEREBY EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE WITH REGARD TO THIS MANUAL, THE SOFTWARE, OR SUCH OTHER INFORMATION, IN NO EVENT SHALL 2WIRE, INC. BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES, WHETHER BASED ON TORT, CONTRACT, OR OTHERWISE, ARISING OUT OF OR IN CONNECTION WITH THIS MANUAL, THE SOFTWARE, OR OTHER INFORMATION CONTAINED HEREIN OR THE USE THEREOF. 2Wire, Inc. reserves the right to make any modification to this manual or the information contained herein at any time without notice. The software described herein is governed by the terms of a separate user license agreement. Updates and additions to software may require an additional charge. Subscriptions to online service providers may require a fee and credit card information. Financial services may require prior arrangements with participating financial institutions. © British Telecommunications Plc 2002. BTopenworld and the BTopenworld orb are registered trademarks of British Telecommunications plc. British Telecommunications Plc registered office is at 81 Newgate Street, London EC1A 7AJ, registered in England No. 180000. ___________________________________________________________________________________________________________________________ Owner’s Record The serial number is located on the bottom of your Intelligent Gateway. Record the serial number in the space provided here and refer to it when you call Customer Care. Serial Number:__________________________ Safety Information • Use of an alternative power supply may damage the Intelligent Gateway, and will invalidate the approval that accompanies the Intelligent Gateway.
    [Show full text]
  • Catv Cabling System
    NYULMC AMBULATORY CARE CENTER – FIT-OUT PHASE 1 Perkins & Will Architects PC 222 E 41st ST, NYC Project: 032698.000 Issued for GMP March 15, 2017 SECTION 27 41 33 CATV CABLING PART 1 - GENERAL 1.1 SYSTEM DESCRIPTION A. Furnish and install a complete and fully operational Television Signal Distribution System capable of delivering up to 158 video channels (6 MHz NTSC Channels containing NTSC, ATSC and QAM modulated programs) and IP Video over an installed Category 6A unshielded twisted pair cable system. The System shall utilize a cable plant comprised of a TIA/EIA 568 compliant horizontal distribution cable system and a coaxial and/or single mode fiber backbone system. The System shall employ Active Automatic Gain Control Electronics to adjust the video signal levels to each TV and shall be capable of supporting up to 14,000 connected devices. The System shall support bi-directional RF transmission for backbone interconnections. Include amplifiers, power supplies, cables, outlets, attenuators, hubs, baluns, adaptors, transceivers, and other parts necessary for the reception and distribution of the local CATV signals. Back-feed existing campus system. (CAT 5e is acceptable to 117 channels) B. Distribute cable channels to TV outlets to permit simple connection of EIA standard Analog/Digital television receivers. C. Deliver at outlets monochrome and NTSC color television signals without introducing noticeable effect on picture and color fidelity or sound. Signal levels and performance shall meet or exceed the minimums specified in Part 76 of the FCC Rules and Regulations D. Provide reception quality at each outlet equal to or better than that received in the area with individual antennas.
    [Show full text]
  • HD Television on Cat 5/6 Cable Cable TV on Cat 5/6 Cable
    HD Television on Cat 5/6 Cable Cable TV on Cat 5/6 Cable Innovative Technology .... Exceptional Quality! The Lynx® Television Network Distributes up to 640 digital Increases flexibility for moves, adds channels on Cat 5 or Cat 6 cable and changes Excellent for cable TV, SMATV, or Improves reliability off-air television distribution Creates a technology bridge to Simplifies cabling requirements Internet TV and IPTV The Lynx Television Network simultaneously simplifies installation, standardizes the wiring, delivers up to 210 HDTV channels, 640 and reduces maintenance requirements. standard digital channels, or 134 analog channels on Cat 5 or Cat 6 cable. Frequency The Lynx Network increases system flexibility capabilities are 5 MHz to 860 MHz. because moves, adds, and changes are easy with Cat5/6 cable. A Lynx hub in the wiring closet converts an unbalanced coaxial signal into eight or A homerun wiring design improves reliability sixteen balanced signals transmitted on because there are no taps or splitters between twisted pair cables. At the point of use a the distribution hub and the TV. wallplate F or single port converter changes the signal back to coaxial form. The Lynx Network also provides a “technology bridge” to Internet TV and IPTV by setting up the cabling that these technologies use. A patented RF balun is the centerpiece of the Lynx design. A pair of send / receive baluns delivers a clean RF signal to each TV (on pair four). The baluns use an RF technology that delivers HD, digital, and analog channels on network cables without using any bandwidth Wallplate F Single port converter on the network itself.
    [Show full text]
  • Introduction to Digital Subscriber's Line (DSL) Chapter 2 Telephone
    Introduction to Digital Subscriber’s Line (DSL) Professor Fu Li, Ph.D., P.E. © Chapter 2 Telephone Infrastructure · Telephone line dates back to Bell in 1875 · Digital Transmission technology using complex algorithm based on DSP and VLSI to compensate impairments common to phone lines. · Phone line carries the single voice signal with 3.4 KHz bandwidth, DSL conveys 100 Compressed voice signals or a video signals. 1 · 15% phones require upgrade activities. · Phone company spent approximately 1 trillion US dollars to construct lines; · 700 millions are in service in 1997, 900 millions by 2001. · Most lines will support 1 Mb/s for DSL and many will support well above 1Mb/s data rate. Typical Voice Network 2 THE ACCESS NETWORK • DSL is really an access technology, and the associated DSL equipment is deployed in the local access network. • The access network consists of the local loops and associated equipment that connects the service user location to the central office. • This network typically consists of cable bundles carrying thousands of twisted-wire pairs to feeder distribution interfaces (FDIs). Two primary ways traditionally to deal with long loops: • 1.Use loading coils to modify the electrical characteristics of the local loop, allowing better quality voice-frequency transmission over extended distances (typically greater than 18,000 feet). • Loading coils are not compatible with the higher frequency attributes of DSL transmissions and they must be removed before DSL-based services can be provisioned. 3 Two primary ways traditionally to deal with long loops • 2. Set up remote terminals where the signals could be terminated at an intermediate point, aggregated and backhauled to the central office.
    [Show full text]
  • Retrospective on Development of Radio and Wire Data Communication
    March, 2006 IEEE P802.15-06-0107-00-wng0 IEEE P802.15 Wireless Next Generation Networks Project IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Title Retrospective on Development of Radio and Wire Data Communication Date 4 March 2006 Submitted Source Chandos A. Rypinski Voice: +1.415.435.0642 consultant Fax: [- ] Tiburon, CA 94920 USA E-mail: [email protected] Re: Call for contributions for 15WNG Erik Schylander, 13 Feb 2006 Abstract An account of: the development of phase shift keying and orthogonal frequency division multiplex with carriers positioned at spectral null of the adjacent carrier at Collins Radio 1954-58, the early development of 802.3 CSMA, 802.4 Token bus and 802.5 Token ring and the 802.4L radio PHY for token bus, the 802.6 and 802.9 committee’s working on voice-data integration, the start of 802.11 from 802.4L, the original functional targets and the DFW MAC adopted as a starting point the circumstances for the development 11A and 11B. Purpose The intent is show the effect of early and current decision-making as influenced by function goals and obscure design considerations. Possibly some future choices may be better made with knowledge of these examples. Notice This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
    [Show full text]
  • Digital Subscriber Lines and Cable Modems Digital Subscriber Lines and Cable Modems
    Digital Subscriber Lines and Cable Modems Digital Subscriber Lines and Cable Modems Paul Sabatino, [email protected] This paper details the impact of new advances in residential broadband networking, including ADSL, HDSL, VDSL, RADSL, cable modems. History as well as future trends of these technologies are also addressed. OtherReports on Recent Advances in Networking Back to Raj Jain's Home Page Table of Contents ● 1. Introduction ● 2. DSL Technologies ❍ 2.1 ADSL ■ 2.1.1 Competing Standards ■ 2.1.2 Trends ❍ 2.2 HDSL ❍ 2.3 SDSL ❍ 2.4 VDSL ❍ 2.5 RADSL ❍ 2.6 DSL Comparison Chart ● 3. Cable Modems ❍ 3.1 IEEE 802.14 ❍ 3.2 Model of Operation ● 4. Future Trends ❍ 4.1 Current Trials ● 5. Summary ● 6. Glossary ● 7. References http://www.cis.ohio-state.edu/~jain/cis788-97/rbb/index.htm (1 of 14) [2/7/2000 10:59:54 AM] Digital Subscriber Lines and Cable Modems 1. Introduction The widespread use of the Internet and especially the World Wide Web have opened up a need for high bandwidth network services that can be brought directly to subscriber's homes. These services would provide the needed bandwidth to surf the web at lightning fast speeds and allow new technologies such as video conferencing and video on demand. Currently, Digital Subscriber Line (DSL) and Cable modem technologies look to be the most cost effective and practical methods of delivering broadband network services to the masses. <-- Back to Table of Contents 2. DSL Technologies Digital Subscriber Line A Digital Subscriber Line makes use of the current copper infrastructure to supply broadband services.
    [Show full text]
  • Ethernet/Category 5 Network Cabling Guide Prepared by SJ Wilkinson (August 2002) Based on Steve Derose’S Guide to CAT5 Network Wiring (See Later Web Reference)
    Ethernet/Category 5 Network Cabling Guide Prepared by SJ Wilkinson (August 2002) Based on Steve DeRose’s Guide to CAT5 Network Wiring (See later Web Reference) Networks A Local Area Network (LAN) can be as simple as two computers, each having a network interface card (NIC) or network adapter and running network software, connected together with a crossover cable. Here the crossover cable would have a plug at either end to connect into the NIC socket at the back of each computer. The next step up would be a network consisting of three or more computers and a hub. Each of the computers is plugged into the hub with a straight-thru cable (the crossover function is performed by the hub). For a small network the straight-thru cables would have plugs at either end – one to connect to the computer and one to the hub. For larger networks wall cabling, wall sockets and patch cables are used. A CAT5 "patch panel" is used at the hub end where all your wires come together and provides a group of sockets for further cables. Straight-thru patch cables connect computers to sockets (jacks). Straight-thru wall cables connect sockets to the patch panel. Straight-thru patch cables connect the patch panel to the hub. Patch panels often make network cabling neater but are not essential as (a) wiring a plug is no harder than wiring a panel; (b) you still need cables to go from the panel to the hub; and (c) it adds extra connections, so lowers reliability. 1 Planning your Network Pick a location for your hub, preferably centred to keep cable runs shorter.
    [Show full text]
  • Dodea FACILITIES MANAGEMENT GUIDE
    DoDEA FACILITIES MANAGEMENT GUIDE: TECHNOLOGY SYSTEMS DESIGN GUIDELINES DoDEA-NETWORK VERSION 2.0 DEPARTMENT OF DEFENSE EDUCATION ACTIVITY APRIL 14, 2016 UPDATED DRAFT DoDEA Technology Systems Design Guide – DoDEA Network Requirements TABLE OF CONTENTS Acronyms ........................................................................................................................................ 3 1.0 Purpose ........................................................................................................................ 5 2.0 Applicability ................................................................................................................. 5 3.0 References ................................................................................................................... 5 4.0 Responsibilities ............................................................................................................ 7 5.0 Data/Telecommunications Systems Summary ............................................................. 8 5.1 Outside Cable Plant .................................................................................................... 10 5.2 System Requirements ................................................................................................ 11 5.2.A Main Telecommunications Room (TR1) ........................................................................... 11 5.2.B Secondary Telecommunications Room (TR2) ................................................................... 13 5.2.C Video Distribution ............................................................................................................
    [Show full text]
  • IEEE Paper Template in A4
    Volume 6, Issue 2, February 2016 ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering Research Paper Available online at: www.ijarcsse.com A Review Paper on Cable Connectors Jhankar Tyagi Guest Faculty, Shaheed Sukhdev College of Business Studies, Delhi University, Delhi, India Abstract— This paper is an attempt to give a basic knowledge of cable connectors to the user. Keywords— Cable glands, RJ 45 Connector, Banana Connector, BNC Connector, XLR Connector I. INTRODUCTION An electrical connector is an electro-mechanical device for joining electrical circuits as an interface using a mechanical assembly. Connectors consist of plugs (male-ended) and jacks (female-ended). In computing, an electrical connector can also be known as a physical interface. II. PROPERTIES OF CONNECTORS Electrical connectors are characterized by their pin out and physical construction, ruggedness and resistance to vibration, resistance to entry of water or other contaminants, resistance to pressure, lifetime .They may be keyed to prevent insertion in the wrong orientation. It is usually desirable for a connector to be easy to identify visually, rapid to assemble, and be inexpensive .No single connector has all the ideal properties. Cable Glands: Cable glands known as cable connectors, connect wires to devices mechanically rather than electrically and are distinct from quick-disconnects .They are mechanical cable entry devices and can be constructed from metallic or non-metallic materials. They are used in conjunction with cable and wiring used in electrical instrumentation and automation systems. They are used as a ceiling and a termination device to insure that the characteristic of the enclosure which the cable enters can be contained adequately.
    [Show full text]
  • Manual Will Indicate Which Sections Apply to the Different Programming Modes and Setups
    INSTALLATION INSTRUCTIONS MX88 EIGHT ZONE – EIGHT SOURCE AUDIO & AUDIO/VIDEO CONTROLLER/AMPLIFIER Page: 2 Model MX88 IMPORTANT SAFETY INSTRUCTIONS - READ BEFORE OPERATING EQUIPMENT CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of un-insulated “dangerous voltage” within the product‟s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. This product was designed and manufactured to meet strict quality and safety standards. There are, however, some installation and operation precautions, which you should be particularly aware of. 1. Read Instructions – All the safety and operating instructions should be read before the appliance is operated. 2. Retain Instructions – The safety and operating instructions should be retained for future reference. 3. Heed Warnings – All warnings on the appliance and in the operating instructions should be adhered to. 4. Follow Instructions – All operating and use instructions should be followed. 5. Water and Moisture – The appliance should not be used near water – for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc. 6.
    [Show full text]
  • 900152-001-How to Make CAT-5 Twisted-Pair Network Cables
    April 2005 900152-001 - Rev 00 How to make category 5 twisted-pair network cables Introduction The purpose of this document is to show you how to make the two kinds Stranded wire patch cables are often specified for cable segments running of category 5 twisted-pair network cables that can be used to network one from a wall jack to a PC and for patch panels. They are more flexible than or more countertops together with a jukebox to form quick and simple solid core wire. However, the rational for using it is that the constant local area network (LAN). flexing of patch cables may wear-out solid core cable-break it. Also, stranded cable is susceptible to degradation from moisture infiltration, may use an alternate color code, and should not be used for cables longer LANs simplified than 3 Meters (about 10 feet). A LAN can be as simple as two units, each having a network interface card CAT 5 cable has four twisted (NIC) or network adapter and running network software, connected pairs of wire for a total of eight together with a crossover cable. The next step up would be a network individually insulated wires. consisting of (the hub performs the crossover function). Each pair is color coded with one wire having a solid color (blue, orange, green, or brown) twisted around a second wire with a white background and a stripe of the same color. The solid colors may have a white stripe in some cables. Cable colors are commonly described using the background color followed by the color of the stripe; e.g., white-orange is a cable with a white background and an orange stripe.
    [Show full text]