Friday, 20 August 2021

Interconnecting Devices

Interconnecting Devices

An Interconnecting devices is a network device. It used to transfer data from one computer to other computer with the help of network devices. There are five categories of interconnecting devices are such as.

  • Router 
  • Hubs 
  • Switches/Bridge 
  • Repeater 
  • BRouter


Repeater:

Now I am going to tell you the repeater is an electronic device that used to receive and send a signal. It amplifies the signal and noise. It provides transmission of the signal. 

HUB (Hyper User Bus): 

In this, it used to link several computers in the same network. It based on broadcasting, and it sends the data to all computers and repeats the signal which receives a signal from one port and copies to other port and traffic are high.

Bridge / Switch: 

In this, we can see the interconnecting devices which can divide a single network into two or more segment are called Bridge / Switch.  It has multiple ports like 2, 4, 16, and 32. The Switch maintains MAC-TABLE (MEDIA ACCESS CONTROL) and The Bridge maintain CAM-TABLE (CONTENT ADDRESSABLE MEMORY).

Router: 

The router is highly intelligent Interconnecting devices which connect two dissimilar networks. It defines the shortest and best path. It maintains a table is called RIT it uses a protocol like RIP, IGRP and EIGRP.

RIT - ROUTING INFORMATION TABLE 

RIP - ROUTING INFORMATION PROTOCOL 

IGRP – INTERIOR GATEWAY ROUTING PROTOCOL 

EIGRP - ENHANCED INTERIOR GATEWAY ROUTING PROTOCOL 


BRouter:

It is the combination of Bridge and Router, it will connect LAN & WAN. It provides a single network into two or more segment and shortest and best path. 

Thursday, 5 August 2021

Rollover Crimping

Rollover Crimping

It is used for connecting Router Console Port to PC Com Port.

The following color patterns are 

  • Brown 
  • Brown white 
  • Blue 
  • Blue white 
  • Green 
  • Green white 
  • Orange 
  • Orange white

Rollover Crimping


 

Crossover Crimping

Crossover Crimping

It is used between like devices (Similar Devices) such as Hub to Hub, PC to PC, Switch to Switch, Hub to Switch and PC to Router 

  • DTE (Data Terminal Equipment) - DTE (Data Terminal Equipment)
  • DCE (Data Communicating Equipment) - DCE (Data Communicating Equipment)
  • Connecting same device
The following color patterns are 
  • Orange White 
  • Orange 
  • Green White 
  • Blue 
  • Blue White 
  • Green 
  • Brown White 
  • Brown
A Cross Crimp is consists of colors such as orange-white, orange, green-white, blue, blue-white, green, brown-white, and brown this is the color patterns were used for cross crimp and the following diagram is given below.

Crossover Crimping



Straight Crimping

Straight Crimping

It used between unlike device (dissimilar devices) such as Hub to PC, Switch to Hub and Hub to Router.

  • DTE (Data Terminal Equipment) - DCE (Data Communicating Equipment)
  • Different device
  • Example: PC and Router Communicate with Modem, Hub, and Switch
The following color patterns are
  • Green white 
  • Green 
  • Orange white 
  • Blue 
  • Blue white 
  • Orange 
  • Brown white 
  • Brown 
A straight crimp is consists of color such as green-white, green, orange-white, blue, blue-white, orange, brown-white, and brown these are the color patterns were using for straight crimp and the following diagram is given below

Straight Crimping



Types of Crimping

Types of Crimping

There are three types of crimp with Twisted Pair Cable 

  • Straight  Crimping ( Different device ) DTE - DCE 
  • Cross Crimping ( Connecting same device ) DTE - DTE  & DCE - DCE
  • Rollover Crimping ( Connecting Router Console Ports to PC Com Ports) 

Where, 

DTE – Data Terminal Equipment   (Used in PC, Router) 
DCE – Data Communicating Equipment   (Used in Modem, Hub, and Switch)

Crimping

Crimping

The Configuring of cables with respective connector is called Crimping. The commonly used cables for crimping are Cat 5, Cat 5e and Cat 6 and these cables connected with RJ45 connector. It used to connect network devices such as PC, Hub, Switch, Router, Modem, Router Console Ports and PC Com Ports.

Twisted Pair cable is have 4 pairs of wire 

  • Green 
  • Green white 
  • Blue 
  • Blue white 
  • Orange 
  • Orange white 
  • Brown 
  • Brown white


Computer Peripherals

Computer Peripherals

A Computer Peripherals is a combination of Input and Output devices. Therefore the process of peripherals device is to put information into computer and get information from computer for users and other devices. Therefor the computer perform some operations by connecting a peripherals devices to the computer machine. For example like keyword connected to computer for giving input information to the computers. The computer peripheral is a hardware component. It used to provide a input and output operations to a computers machines. The following input and output devices pictures are given below.

Input Devices


When you work with the computer to enter your data and instructions through some devices to the computer. Therefore these devices are called input devices and the input devices are necessary to convert data or instructions enter into the computer to a form which can be recognized by the computer.
  • Keyboard 
  • Mouse 
  • Scanner 
  • Joystick 
  • Microphone 
  • Digital camera

Output Devices


However it is similar to input devices require for inputting data, the computer displays or print the output on devices called output devices. Therefore some of the commonly used output devices are:

  • Visual Display Units (VDUs) 
  • Printers 
  • Speakers