Epson Expression Premium XP-635 Refurbished - Manual (Page 78)

Devices Used to Configure Ethernet Connections
The following is a list of the devices shown in the figure above.
(a) Modem
(b) Router
(c) Hub
(d) Ethernet Cable
(e) Network Interface
(f) Printer
(g) Computer
The following explains the functions of the devices.
(a) Modem or Optical
Network Unit Connects home or office networks to an external network (Internet) with a line through a
computer or router. The computer or router cannot receive signals themselves without
converting the information.
There are two types of devices used to convert information depending on the signal.
❏ Modem: Converts an analog signal sent from an analog line such as a telephone line
into a digital signal, or vice versa.
❏ Optical Network Unit: Converts an optical signal into electrical signal, or vice versa and is
installed on the user's side of the network.
(b) Router The router is the doorway to the network. They act as a relay point between devices and
external signals. If the router is able to connect to the Internet, devices connected to the
router are also able to connect to the Internet.
Since the router is the doorway to the network, each router can be defined as an individual
unit of the network. This individual unit is known as a "Segment".
(c) Hub Routers cannot connect directly to a large number of devices. You can use a hub and
Ethernet cable (d) to connect several devices such as printers and computers to the router.
Some products are a combination of a hub and router.
Network Guide
Appendix
78