Tài liệu Case Study - Antarctic pptx

CASE
study
KRONE Australia
2 Hereford Street Berkeley Vale NSW 2261
PO Box 335 Wyong NSW 2259
Phone: 02 4388 4422
Fax: 02 4388 4499
Help Desk: 1800 801 298
Email:
Web: www.krone.com.au
Telecommunications connectivity
crucial in the Antarctic wilderness
Antarctica has no peer as a wilderness. This vast land,
nearly twice the size of Australia, and its surrounding
seas are dominated by nature, by cold and wind, ice
and snow. It is the driest, coldest, windiest and
highest continent on Earth. The nearest point of
Antarctica to Australia is nearly 2,700 km away.
The Australian Antarctic Division (AAD) is part of the
Commonwealth Department of the Environment
and Heritage. It maintains three, year-round ANARE
(Australian National Antarctic Research Expeditions)
research stations at Casey, Davis and Mawson on the
Antarctic continent and one at Macquarie Island in
the sub-Antarctic Southern Ocean.
Each station is comprised of buildings including
accommodation, scientific laboratories, workshops,
stores and power houses.
The main telecommunications facility is contained
in the Operations Building which is linked to the
other station buildings by multipair telephone

cables for the telephone system, and fibre optic
cables for the Local Area Network (LAN). A satellite
link provides communication back to Australia.
The telecommunications network allows Australian
scientists to conduct research programs at the
ANARE stations. They need to transfer data
between themselves and Australian and overseas
research institutions. It also allows them to easily
discuss theories and ideas with their colleagues
who are not in Antarctica.
The scientists study Antarctic biology, glaciology,
climatology, human impact, marine science and
atmospheric and space physics and need to transfer
information to their home institutions.
The network is also used by support staff, such as
the communications technical officers, diesel
mechanics, electricians, plumbers, carpenters or
chefs to send and receive e-mail, connect to the
Internet or to phone home.
Ian Bruce is Senior Technical Officer
(Telecommunications), based at the AAD's
headquarters at Kingston, Tasmania. He is part of the
team that provides a telecommunications system which
supports Australia's research activities in Antarctica.
"We are currently upgrading our cabling
infrastructure by replacing a Thinwire LAN and Cat
3 internal telephone cables with a structured
unshielded twisted pair (UTP) cabling system. The
reliability of the connectivity components of our
telecommunications network is crucial.

"The move to a structured UTP cabling environment
provides more flexibility, greater reliability and easier
fault finding. This ensures that the cabling network
is always available in support of ANARE scientific
and operational programs."
In January each year, the AAD recruits eight
technical officers (two per station) annually and
they spend one year at an ANARE station.
These technical officers maintain the entire
telecommunications network (satellite systems,
computer networks, HF and VHF radios, telephone
systems and other equipment). They also install
and maintain the cabling infrastructure. For larger
installation projects the AAD may, at times, send a
technical officer who is dedicated to that
particular project.
CASE
study
KRONE Australia
2 Hereford Street Berkeley Vale NSW 2261
PO Box 335 Wyong NSW 2259
Phone: 02 4388 4422
Fax: 02 4388 4499
Help Desk: 1800 801 298
Email:
Web: www.krone.com.au
The biggest hurdle AAD has to overcome is the
inaccessibility of the ANARE stations during the
planning stages. Whereas for a project in Australia,
the designer or project manager would conduct a

site survey, this is impossible in Antarctica. AAD
relies on the information which comes back from
the technical officers in Antarctica and the drawings
of the installations as they currently exist.
AAD then explains to the technical officers who are
about to go to Antarctica what the job entails and
how they should approach it, keeping in mind that,
in many cases, they haven't been to Antarctica or
seen the ANARE stations before.
The principal lessons learned with an installation of
this magnitude are that planning is very important,
as is correct installation technique.
"Careful planning is essential. If something is
forgotten or lost we can't just go down the street
and buy a replacement," said Mr Bruce.
"The technical officers at the ANARE stations have
done an excellent job of installing the cabling
infrastructure in what can, at times, be very difficult
conditions. When working in Antarctica, you must
be flexible and adaptable. We are extremely happy
with the way the project has been going."
"KRONE products have been an integral part of the
Australian Antarctic Division's telecommunications
network since the late 1980s. We use the HIGHWAY
range of patch panels and associated accessories and
LSA+ modules at our headquarters in Tasmania, and
at our bases in the Antarctic," said Ian Bruce, AAD's
Senior Technical Officer (Telecommunications).
"They have proven to be reliable which is a crucial
factor because the ANARE stations are isolated for

approximately six months of the year when the sea
surrounding the continent has frozen and it is not
possible to send replacement items to the area."
"We have recently been upgrading our data and
internal telephone networks and these cables
terminate on KRONE HIGHWAY modular patch
panels," added Mr Bruce. "We use standard RJ45
to RJ45 patch cords to patch the outlets into the
data switches and hubs, and we use LSA to RJ45
patch cords to interface the outlets into the inter-
building telephone network."
Cable and patch cord management is achieved by
using KRONE HIGHWAY patch cord minders with
jumper rings attached front and rear.
"HIGHWAY modules, patch panels and associated
UTP cabling replaced our existing Thinwire network,
providing more flexibility, greater reliability and easier
fault finding," said Mr Bruce. "This ensures that the
cabling network is always available in support of
ANARE scientific and operational programs."
A satellite link, known as ANARESAT, provides
communication via a public switched telephone
network and Wide Area Network (WAN) back to
AAD Head Office at Kingston in Tasmania.
The KRONE installations form part of the LAN and
telephone network at each ANARE station which
then connect to the ANARESAT system.