Chapter 11 Installing the Network

8/10/2019 Chapter 11 Installing the Network

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Installing the Network

Chapter 11


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Chapter 72

Chapter Objectives

Explain the need of structured cabling

Identify cables and different types of connectors

Work with different types of cables

Identify closets, conduits and cable tray

Install racks and manage cables

Work with modular outlets


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Chapter 73

Recall - I

Repeater is a device that is used to regenerate signals

Bridges are used to connect multiple LAN segments

Types of bridges are:

Transparent bridge

Translational bridge

Source-route bridge

The static and dynamic are two types of router

Types of hubs are: Passive hub

Active hub

Intelligent hub


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Chapter 74

Recall - II

Switch is the device with filtering and forwarding feature

The different methods used by switches to send dataare:

Cut-through method

Store and forward method

Fragment-free method

Gateway provides interconnection between differentnetworks and translation service


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Chapter 75

Structured Cabling

Comprises of cables and associated hardware parts Provides an organized way of low voltage wiring

Transmits data that is built in structured form

Need of structured cabling: Consistency

Standard cabling systems for Data, voice

and video

Cost Reduction Reduces the cost by reducing thenumber of cables

TroubleshootingIsolates and fixes the problem

Mobility Network resources are portable

Supports upgrading Supports future applications


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Chapter 76

Design Considerations of Structured

Cabling


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Chapter 77

Structured Cabling - II

Design Considerations of structured cabling

Entrance Facilities Connects the building with theoutside world

Equipment Room

Serves the users within the room Telecommunications Room Accommodates the

cabling system equipment

Backbone Cabling Interconnectstelecommunications room, equipments room and

entrance facilities


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Chapter 78

Structured Cabling - III

Design Considerations of structured cabling

Horizontal Cabling Extends from the work area

telecommunications outlet to telecommunications

closet

Work Area Components extend from the

telecommunications outlet to the stations equipment


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Chapter 79

Cable DistanceI

Horizontal Cabling Distance

horizontal cabling distance is 99 meters (TIA/EIA-

568A)

6 meters of patch cable 90 meters horizontal (routed in the wall)

3 meters of station cable

99 meters total (rounded off to 100 meters)

Backbone cable Distance

Depends on type of cable beingused and on its

location


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Chapter 710

Pulling Cables - I

While dealing with structured cabling you have topull out the cables from some conduits and punch

down the free end of the cable

Conduits are PVC or flexible plastic pipes used to

organize the cables Pull twine through the conduits


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Chapter 711

Pulling cables - II

Elements

required for

pulling cables

Fish Tape Twine ConduitsScale and

Tape

Patch Panel


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Chapter 712

Pulling Cable Tools

Fish Tape Twine Conduit

Scale &

TapePatch Panel


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Chapter 7 13

Cables

Two or more wires bound together, in protectivejacket or sheath

Different types of cables:

Twisted pair cable

Coaxial cable

Optical fiber cable

Shielded and Unshielded cable


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Chapter 7 14

Cable ConnectorsI

Part of cable which plugs into port or interface to

connect one device to another

Connectors: Male and Female

DB-15 connectors - Commonly used on electronic andcomputer equipment

RJ45 Connectors Used in networking to connect

computer to network card

BNC Coaxial Connectors

Used with coaxial cablesor used with Ethernet system


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Chapter 7 15

Cable ConnectorsII

210 Patch Plug

Uses internal pair isolation, pair-to-pair compensation and layered contacts

Token-Ring Data Connector Used on end of a

shielded twisted pair cable

Distinguishing Wires

Color coding makes identification each wire or pair of

wires in the cable easier

Tip and ring Identifies plus wire and minus wire


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Chapter 7 16

Cabling Tools

Used in networking to work with wires or devices or

to connect wires and devices to each other

Different tools used are:

Punchdown Tools RJ45 Crimping Tool

Coaxial Cable Crimping Tool

Pin Crimping Tool

Cable stripper


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Chapter 7 17

Working with CablesI

Installation works in three stages:

Running cable from central point to the room

Wall jacks are mounted and cables ended into jacks

Wire cables from the central end to switchboard Color Coding

Helps to classify different types of wires

Patch cable and cross over cable can be differentiated

on the basis of colour coding


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Chapter 7 18

Working with CablesII

Tools and materials required for crimping cable: RJ45 Crimping Tool

Wire stripper

Wire cutter

RJ-45 plugs

Cat-5 UTP cables


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Chapter 7 19

Working with CablesIII

Straight through Cable

Same pin out connections at both

ends

Used to connect dissimilar devices

Crossover Cable

Modify pin out connections

at one end Used to connect similar types

of devices


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Chapter 7 20

Working with CablesIV

Weak Link Mostly, weakest link is the station cable, which runs

from wall to desktop

Information Outlet

Protect horizontal wiring from physical handling thatcables receive

Keep installation neat and eliminate unsightly snakepit of unused cables coiled on floor

Station Cable

Runs between information outlet

and network node e.g. PC


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Chapter 7 21

RJ45 Modular Outlet

Device used to connect shielded or unshielded

cables

Acts as extension where wires are fixed on the

either side of modular connector


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Chapter 7 22

Closet

Main point in an organization where major networking cablingcome together

Equipment in a wiring closet includes:

Patch panels for vertical wiring

Patch panels for horizontal wiring

Wiring hubs

Uninterruptible Power Supplies

Types of wiring closets:

Intermediate Distribution Frames (IDF)

Main Distribution Frame (MDF)


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Chapter 7 23

Closet Details

Typical equipment in a wiring closet are:

Backbone wiring cross-connect device

Horizontal wiring cross-connect device

Patch cables Wiring hubs

Backup power for wiring hubs

Router and modems

Access server


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Chapter 7 24

Cross-Connect Devices - I

Make easy to reconfigure horizontal and backbonewiring

Terminates cable or group of cables

Make terminations available for interconnection to

other cables

In data networks Small cross-connect device will

terminate backbone cable and make it available for

connection to wiring hub

In wiring hub Larger cross-connect device will

terminate horizontal wiring before it enters hub


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Chapter 7 25

Cross-Connect Devices - II

66M Punch

Down BlockPatch Panel


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Chapter 7 26

Cabinets and Racks - I

Patch panels and wiring hubs can mount on wall in

brackets, stand in racks or reside in full cabinets

that are racks with doors

If small installation

Mount patch panels andwiring hubs on wall


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Chapter 7 27

Cabinets and Racks - II

Distribution

Rack

Full

Equipment

Cabinet

Rack


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Chapter 7 28

Neat Cables

Used to avoid damage to cable pairs and used to tie

the cables

Ties come in many sizes and materials


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Chapter 7 29

Uninterruptible Power Supplies (UPS)

Equip network file servers

with backup power

Allow wiring hubs to go

without power duringpower failure


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Chapter 7 30

Conduits

Plastic pipes that run through wall plate between

wiring closets

If space left:

Used to pull a new cable

Used as replacement for a bad one For added capacity

Fish tape

An equipment which is part of any installers toolbox

Consists of a reel of wire stiff enough to push its way

through the conduit


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Chapter 7 31

Cable Trays

Provide large cable system

Wire rack designed to carry the weight of the cables

Common in modern wiring closets and in building

infrastructure spaces such as basements, airshafts,and ceiling

Point to note when cables run inside ceilings and

walls


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Chapter 7 32

Configuring Backbone Cable

Wiring closet that contain patch and cross-connectpanels which connect to horizontal wiring

Backbone wiring link each wiring closet to cross-

connect point or (MDF)

Locating the closet

Different parameters to keep in mind when going for

closet

Backbone Cable Modern installations use UTP or fiber-optic cable for

the backbone


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Chapter 7 33

Installation of Racks

Explains how to place networking equipments and

accumulate different small equipment on the plate of

the rack

Factors to be considered while installing the rack: Location to install the rack

Installation holes marking

Installation of the rack nuts

Mount the different rails onto the rack Mount the different devices onto the rack


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Chapter 7 34

Managing Cables

Cables:

Should not run over desk

Should not be entangled

To manage cables: Free space on the desk where the cables will run

Holes at top of desk

Mount to protect cables


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Chapter 7 36

Labeling Cables

Used to identify path of the cables

Distinct color and pattern of code of cable label

helps identify cables

Labels can be written with a pen or a pencil Cables labeled using Label templates

Labels on Outlet


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Chapter 7 37

Case Study 1

The network administrator of the Mumbai branch of

MoneyMaker bank is facing difficulties in

maintaining the network. In case the network goesdown due to some hardware failure, identifying the

source of the problem and troubleshooting it is very

time consuming. The layout of the network has not

been changed since the time it was set up.


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Chapter 7 38

Problem

The maintenance and troubleshooting of the networkis problematic and time consuming


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Chapter 7 39

Solution

Deploy a dedicated closet

Use full equipment cabinet

Use rack and configure the hardware

Use appropriate cable and crimp the cable

Define maximum backbone cable length andhorizontal cable length

Use different wire manager

Use modular outlet and I/O plate

Use third party hardware monitoring or the

troubleshooting devices


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Chapter 7 40

Summary - I

Structured cabling system is a set of cabling whichinterconnects different equipments in anorganization in a structured manner

Cable connectors are used to connect the cables

Cabling tolls are helpful to make connectionbetween the cable and the connector

Colour Code helps to identify the types of wires

Cat5 cables are punched into Information outlet (IO)

as per the colour coding

Jack Panel is used to connect horizontal cabling tonetwork


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Ch 7

Summary - II

Straight through cables have the pin outconnections similar at both the ends

Cross over cable change the pin out connections atone end

Installing the rack explains how to place networkingequipments and accumulate different smallequipment on the tray of the rack

Wire manager can organize the disorganized cables

and makes it easy to access Labeling the cables help you to identify the path of

the cables and makes the troubleshooting easy

Chapter 11 Installing the Network

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