Computer Networking Devices for Network.pdf

Network Devices Presentation

1. Modem
A hardware device that allowsa computer to
send and receive data over a telephone line or a
cable or satellite connection.
In the case of transmission over an analog
telephone line, which was once the most
popular way to access the internet, the modem
converts data between analog and digital
formats in real time for two-waynetwork
communication.
Devices for network

2. Router
The main function of the router is to
sorting and the distribution of the data
packets to their destinations based on their
IP addresses.

3. Access Point (WAP)
A device that creates a wireless local area
network, or WLAN, usually in an office or large
building.
An access point connects to a wired router,
switch, or hub via an Ethernet cable, and
projects a Wi-Fi signal to a designated area.

4. Access Point (WAP)

5. HUB
It is the central connecting
device in a computer network.
When data packets arrives at
hub, it broadcast them to all the
LAN cards in a network and the
destined recipient picks them
and all other computers discard
the data packets.

6. Switch
is an intelligent device that maps the IP address with the
MAC address of the LAN card.
Unlike the hubs, a switch does not broadcast the data to
all the computers, it sends the data packets only to the
destined computer.
Managed switchesprovide all the features of an
unmanagedswitchand provide the ability to configure,
manage, and monitor your LAN.
Unmanaged switchsimply allowsEthernetdevices to
communicate with one another, such as a PC
ornetworkprinter, and those are typically what we call
“plug and play.”

7. Switch

8. Switch

9. Patch Panel
A central location that can
provide a simple, neat and easy-
to-manage solution.
A patch panel performs no other
function except for acting as a
connector..

12. LAN Card
LAN cards or network adapters are
the building blocks of a computer
network.
No computer can communicate
without a properly installed and
configured LAN card.

13. Keystone Jack or IO Jack
a female connector used in data
communications, particularly local area
networks (LANs).
The jack is usually mounted in a wall
plate or patch panel. A keystone plug is
the matching male connector, usually
attached to the end of a cable or cord.

14. raceways

15. Raceways
A raceway is a channel that
contains cables.
Raceways include common
electrical conduits ,
specialized cable trays or
ladder racks ,
in-floor duct systems ,
and plastic or metal surface
mounted raceways.

16. CAT.5 Installation
DON’Toverstress cables by
overtightering cable ties, especially to
the point where crush stress is visible.
DOuse tie wraps loosely
on large bundles. (see
also “Using Tie-wraps”)
DOuse Velcro tie wraps
to secure large bundles.
DOuse cable clamps on
individual runs.
RUNNING & SECURING CABLE
USING WIRE CHANNELS
DOuse sweeping bends.DON’Tallow the cable to form
right angles or sharp bends.

17. CAT.5 Installation
STAPLING CABLE
USING TIE-WRAPS
DOstaple by hand, or use
staplers with depth stops.
DON’Tsquish cables
when securing them.
DOuse Velcro to keep cables
from becoming over-cinched.
DON’Tchinch the cables tightly, especially
to the point where crush stress is visible.
DOtie-wrap the
bundle loosely.
DOuse Velcro as a flexible and reusable alternative to
plastic tie-wraps to keep bundles from cinching.

18. CAT.5 Installation
REMOVING CABLE JACKET
DON’Tremove too much cable jacket.
DOretain cable jacket as close to
the termination point as possible.
MAINTAINING PAIR TWISTS DURING TERMINATION
DON’Tuntwist the cable pairs more
than 12 mm and DON’Tstrip cable
jacket back any more than you need to.
DOmaintain pair twists to within 12 mm of the
termination point, and the cable jacket is maintained
as close to the terminations as possible.