Find Sporting Goods on eBay
Video and Audio], Broadcasting and podcasting Broadcast On the Net

[description], Story, any other text you want to use.

Cisco Certification: Cabling Cisco Devices

 by: www.SemSim.com

Unshielded Twisted Pair (UTP) is a cable that has four pairs of wires twisted inside it to eliminate electrical interference. UTP cables are connected using RJ-45 connectors that have eight connector pins. The data equipment that is used for internetworking is classified as Data Terminal Equipment (DTE e.g. router interfaces) and Data Communication Equipment (DCE e.g. A WAN connects DTEs through DCE network).

UTP cables are used in many configurations and for different purposes, to form an internetwork including:

Straight-through

Crossover

Rollover

Applications of UTP include:

Serial transmission

Integrated Service Digital Network (ISDN) connections

Console connections

Modular and fixed interfaces

These configurations and applications are discussed below.

Straight-Through Cable

A straight-through cable is the standard network cable connection and is used to connect the source and destination computers through an internetworking device. Specifically, you can use it to connect a host to a hub or switch

Crossover Cable

In a crossover cable, the standard RJ-45 cable between the source and destination computers is cross-connected. A crossover cable can be used to connect:

Two computers

Two hubs

A hub to a switch

A cable modem to a router

Two router interfaces

Rollover Cable

These Cisco proprietary cables used to connect to a router or switch console port. In a rollover cable (8 pins), RJ-45 connectors are usually present at each ends and are used to connect router and computer ports. Pin 1 on one end of cable connects to Pin 8 at the other end of the cable, similarly, Pin 2 connects Pin 7, and so on.

Serial Transmission

All WANs use serial transmission, which can pass one bit at a time over a single channel. Cisco provides a 60-pin serial connector for one end of the cable while other end of the cable may be EIA/TIA-232, V.35, EIA/TIA-449, X.21 or others;

ISDN Connections

ISDN refers to a collection of standards that define a digital architecture that can carry integrated voice and data, using the public-switched network. ISDN BRI (Basic Rate Interface) is a two 64 kbps Bearer channels (2B) plus one 16 kbps Data channel (D) service. ISDN BRI terminates at the customer premise with the U interface.

Console Connections

A console is a type of DTE through which commands are entered into the host device. Most Cisco devices support the RJ-45 console connection. A rollover cable with an RJ-45 connector is used to connect the PC or terminal to the console port of the Cisco device.

Modular and Fixed Interfaces

Unlike a fixed interface router, a modular interface router allows you to add new interface cards without buying a new router.

In the fixed interface series, you refer to the interfaces as:

interface_type interface_number

For example, the first serial interface on a Cisco 2503 router would be referred to as serial 0. Higher routers have modular interfaces that allow you to change the interfaces as and when required. Here, the interfaces are referred to as:

interface_type module_number/interface_number

To practice such commands you can download a free CCNA router simulator from SemSim.com and proceed to the troubleshooting 1 exercise that configures ethernet 0 interface.

About The Author

SemSim.com provides training resources for Cisco certification exams: CCIE, CCNP, CCNA, CCDP, CCDA. It offers FREE learning resources to students such as study guides and router simulation labs. For more information visit: http://www.SemSim.com : Making Cisco cetification easy!


support@semsim.com


multimedia design
multimedia designer
multimedia developer
multimedia development
multimedia files
multimedia messaging
multimedia presentation
multimedia presentations
multimedia production
multimedia projector
multimedia projectors

Main Menu
Broadcast On the Net
Site Map

Affiliate Ads, Links, news, etc.

News for 25-Feb-20

Source: BBC News - Home
Libya Malta hijack: Hijackers arrested as drama ends peacefully

Source: BBC News - Home
Rockettes set for Trump inauguration

Source: BBC News - Home
Israel settlements: Netanyahu snubs 'shameful' UN vote

Source: BBC News - Home
Steam baths and brandy

Source: BBC News - Home
David Moyes: Manchester United's great traditions have gone says Sunderland boss

Source: BBC News - Home
500 years later

Source: BBC News - Home
US issues Jordan travel warning after deadly attacks

Source: BBC News - Home
How phones changed the imagery of the American campaign

Source: BBC News - Home
Kim Ghattas: Trump's Syria conundrum

Source: BBC News - Home
Real-life Libya plane hijack halts hijack film shoot


Links
Links
Links
Google

Take It Right | Take It Correctly | fantasy-sports-directory | Kids Meet
Copyright © 2005. Name of Site here. Last Updated: Tuesday, 25-Feb-2020 00:00:30 MST.
Forum On The Net   Law Meet   Talk On The Net