Computer network devices and their functions

Computer network device there are so many but I will explain some of the constituent devices of the computer network and explain its function.

1. The Router

Routers generally function as direct some packet data/information to another network and the router sends packets of data/information is to use the best routes/roads best in transfer data. Commonly router to function as well as the Division of logical network. In addition many functions such as routers to the network because a maintenance commonly a large network using a router as a tool of control.the router can be used to divide the network, create a login page for internet connection, share internet bandwidth, make security for our network, and others .

This is an example image router mikrotik Rb 750 that I have




2. Switch

The switch in general serve as the senders and recipients of a package of data/information/internet package from the server computer to the client computer.in shipping packages the data/information check will switch the sender's address and check also the recipient address, and that address the form of mac address after sender and recipient address are met then the switch will match / check one by one address that matches the address of the recipient so a little long to get to the goal of having to check one by one is different with the router, the router will immediately know the addresses of the sender and the recipient and will instantly send you a package of data/information to the intended address without checking one by one. the switch I have is the plung-play so once plug can be used directly without the need for configuration.

This is an example image switch blue link BL-S98 8 Ports 10/100Mbps N-Way Switch that I have



3. the Access Point

In a general sense is the Access Point as tranciever / receiver (sender/receiver) packet data / internet using wireless networking to computer clients.

There are several functions of the Wireless Access Point that is

1. Set the Access Point to be used for the DHCP Server

2. Set the Security wired equivalent privacy (WEP) and WI-FI protected access (WPA)

3. Set up anyone who can access the network on the basis of mac-address filtering

4. As a HUB/SWITCH connecting local network acting (cable) and wireless network


This is an example image access point that I had a TL-WA 901 ND 300Mbps Wireless and access points




4. Cable UTP

Cable utp (unshielded twisted pair) cable is a made from a copper conductor, had insulation of plastic. utp cable has four pairs of wires or cable that has 8 different colors. i.e. orange white, orange, green, white, blue, blue, white, green, Brown, white, Brown. utp cable there are many categories ranging from category 1 to category 7.each category is only different in the speed of data transmission, such as got me i.e.UTP CAT-5e that have data transfer speeds of up to 100Mbps.



5. Cable Tester

Cable tester is a device to test a utp cable if the cable utp installations are correct or wrong, when there are wrong then the utp cable cannot be used to transfer the data/information. in utp wiring there are two types of installation that is CROSS and STRAIGHT. For cabling utp type straight color code/color sequence is: orange white,orange, green, white, blue, blue, white, green, white chocolate, chocolate on the first pin to pin a second cable installation sequence is the same as in the first pin. as for the type of cross is orange, green, white, blue, blue, white, green, white, chocolate brown pin in the first and second is to pin: green white, green white, blue, orange, blue, white, orange, Brown, white, Brown.

This figure for this type of cross





Editor : Arga Yudha Adhiprama




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