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1 ethernet basics, Hardware, Hubs, switches, and routers – HP Deskjet 6840 Color Inkjet Printer User Manual

Page 48: Cables, Ethernet basics

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Glossary

5.4.1 Ethernet basics

The printer's built-in Ethernet feature allows you to connect the printer directly to

a

10/100 Base-T

Ethernet network without the aid of an external print server.

To install the printer on an Ethernet network, follow the

Ethernet installation

instructions

.

Hardware

Hubs, switches, and routers
On an Ethernet network, devices, such as computers and printers, are each

connected to a network

hub

,

switch

, or

router

.

Hubs, switches, and routers may look similar, but there are important differences:

• Hubs are passive. Other devices on the network plug into the hub in order to

communicate with one another. A hub does not manage the network.

• A switch allows devices on a network to communicate directly with one another

in a smooth and efficient manner. A switch monitors and directs network traffic

in order to allow each transmission the most possible bandwidth. By monitoring

network traffic, a switch minimizes collisions and maximizes speed.

• Routers primarily connect different networks (for example, connecting a home

network to the Internet). Routers are active. Routers have network

administration tools, such as

firewalls

and

DHCP

. A router can act as a

gateway

, while a hub and a switch cannot.

Cables
Use a CAT-5 Ethernet cable to connect the printer to an Ethernet network. Ethernet

cables have an RJ-45 plug.

1. RJ-45 plug

HP Deskjet 6800 series printer User's Guide

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