1. BROADBAND INTERNET
INFRASTRUCTURE
By Tebra Righeibi

2. TYPES OF TELECOMMUNICATIONS
Fixed Wired
DSL: Digital Suscriber Line
is a technology for bringing high bandwidth* information to homes and small
businesses over ordinary copper telephone lines
How it works;
• Traditional phone service was created for voice exchange and this type of
transmission is an analogue signal.
• As telephone companies already have this analogue wave transmission set up,
it was easier to use this method to transmit information this way.
• That is why a modem is needed to demodulate** the analogue signal and turn it
into digital information
What it does:
• Transmits digital data over the wires of a local telephone network
• Uses copper wiring in conjunction with other hardware
• Unlike dialup internet access, telephone can be used at the same time as using
the internet
• Download speeds of at least 256 kbit/s
• Requires an active landline and usually line rental
*Bandwidth: Data transfer rate
**Demodulate: To extract information from a modulated signal

3. TYPES OF TELECOMMUNICATIONS
Fixed Wired
Cable:
A cable modem is a device that enables you to hook up your PC to a
local cable TV line
How it works:
• Modulates between analogue and digital signal
• Can be an external device or integrated within a computer or set top box
• Usually the cable modem attaches to an Ethernet* card in the computer
What it does:
• All of the cable modems attached to a cable TV company’s coaxial
cable line communicate with a Cable Modem Termination System (CMTS)
at the local cable TV company office.
• Cable modems can receive from and send signals only to the CMTS, but
not to other cable modems on the line
• Download speeds greater than 256 kbit/s
*Ethernet: the most widely-installed local area network ( LAN) technology. An
Ethernet LAN typically uses coaxial cable or special grades of twisted
pair wires.

4. TYPES OF TELECOMMUNICATIONS
Fixed Wired
Fibre Power Broadband:
How it works:
• Connection is established through the use of a cable modem
• TV channel space is used for transferring data upstream and
downstream
• Coaxial cable is used so that a greater bandwidth is achieved compared
to DSL connections that require copper wiring for telephone lines
Fibre to the home – The Fibre cable is piped into your house directly.
Fibre to the cabinet – Fibre cable will be built from the telephone exchange
to neighbourhood telecoms cabinets - midway between the exchange and
the home. In this case copper wiring carries the rest of the signal to the
home. By rolling out fibre closer to the home and reducing the length of the
copper line broadband download speeds are improved

5. TYPES OF TELECOMMUNICATIONS
Wireless
Satellite:
two-way Internet access via satellites
How it works:
• The computer, through a special satellite modem, broadcasts requests to a
satellite dish that is placed on the roof of a home/business
• This dish then sends and receives signals from satellites in space
What it does:
• The Internet feed is beamed from satellite to a dish installed at the
subscriber's home
• Not every home can have DSL or Cable broadband so satellite can be an
alternative
• Download speeds of at least 256 kbit/s

6. TYPES OF TELECOMMUNICATIONS
Wireless
Terrestrial fixed wireless:
is to enable data communications between the two sites or buildings.
How it works:
• The point-to-point signal transmissions occur through the air over
a terrestrial microwave platform rather than through copper or optical fibre
• Fixed wireless does not require satellite feeds or local telephone service.
• The ability to connect with users in remote areas without the need for
laying new cables and the capacity for broad bandwidth that is not
impeded by fibre or cable capacities.
• Fixed wireless data (FWD) links are often a cost-effective alternative to
leasing fibre or installing cables between the buildings.

7. TYPES OF TELECOMMUNICATIONS
Wireless
Terrestrial Mobile Wireless:
Mobile broadband is internet access without the need for a fixed land
line, allowing you to connect wirelessly to the internet wherever you are
How it works:
• Uses the same technology as a mobile phone, except instead of
making a voice call over the phone, the modem makes a data call
across the mobile network which connects to the internet

8. BROADBAND NETWORKS AVAILABLE TO
BALLINTEER, DUBLIN 16
Fibre Cable DSL Wireless Satelite
UPC UPC Magnet Imagine Digiweb
WiMax
Eircom Vodafone Vodafone Onwave
Magnet Eircom
Digiweb
Mobile Broadband Providers
Vodafone
O2
Three
Meteor

9. COMPARISON OF BROADBAND TECH SPECS
Type Max Speed Costs (per
month)
Fibre (UPC) 150Mb per 50mb-€39
second 100mb-€49
150mb-€59
DSL (Vodafone) 24Mb per 8Mb-€45
second 24Mb-€55
Wireless 10Mb per 3Mb-€25
(IMAGINE) second 7Mb-€27.50
10Mb-€32.50

10. BEST PACKAGE AVAILABLE TO ME
UPC FIBRE POWER BROADBAND
Package: Fibre Power Ultimate 79e a month (includes Digital TV
and 100MB broadband) or Fibre Power Broadband 100MB 49e a
month (Broadband only)
For a SOHO scenario, the UPC Fibre Power Broadband package
also applies as WiFi is available and with strong download speeds,
several computers/internet devices can be used at the same time.
For a Mobile Business scenario, the Vodafone Mobile WiFi device
(29.99 a month) would be very useful as it will wirelessly connect to
the Vodafone mobile broadband network most places in Ireland.
Also up to five devices can be connected to the internet at on time,
once they are WiFi enabled