Tài liệu KRONE REPORT No. 4 pptx

CONVERGENCE
HIGHBAND
VIDEO
s–t–r–e–a–m–i–n–g
attenuation
NEXT
DataThing
™
KRONE
return loss
SOLUTION
SYSTEM
Anixter
Levels XP
™
in Action
ethernet
e x p a n d e d p e r f o r m a n c e
TrueNet
™

Providing a high-quality,
affordable education to
a large, diverse student
body throughout New
York City’s five boroughs
is a tremendous chal-
lenge. Today, one of the
keys to CUNY’s success
is the strategic utilization
of networking technology.

From on-line classes to the
Web library, embracing
new technology is crucial
to CUNY’s success.
City University of New York
Providing Access to
Academic Excellence
As a public institution of higher learning, the City University of New
York’s mandate is to offer a powerful academic program at affordable
costs. CUNY’s roots date back to 1847, with the founding of the Free
Academy by Townsend Harris. The mission of that institution, as he
put it, was to “Open the doors to all—let the children of the rich and
poor take seats together and know of no distinction save that of
industry, good conduct and intellect.” Then, as today, its mission was
to “educate the whole people”—to uphold a commitment to academic
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FROM A COLLEGE ON
MANHATTAN’S POSH
PARK AVENUE TO A
SPRAWLING BEACHFRONT
CAMPUS IN BROOKLYN,
CUNY OFFERS STUDENTS
A RICH, DIVERSE ARRAY OF
MORE THAN 900 PROGRAMS.
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excellence while providing equal access to, and opportunity for,
education. Yongsoo Ha, Director of Academic Computing and Law
School Systems, wanted to make sure the latest CUNY data cabling
installation would support the University’s future needs.
The City University

of New York
CUNY is the largest urban university and the third largest public
university system in the United States. With more than 200,000
students in nearly 300 degree programs on its 20 campuses (and more
than 150,000 students in adult and continuing education programs),
CUNY offers a vast array of educational opportunities to diverse
populations. CUNY campuses serve as indispensable cultural, social
and educational resources to the surrounding communities.
Alumni—from Gen. Colin Powell and comedian Jerry Seinfeld to
novelist Oscar Hijuelos, Nobel Laureate Rosalyn Yalow and 10 other
Nobel Laureates—excel in every field of human endeavor.
Additionally, more American chief executive officers have graduated
from CUNY than any other baccalaureate-granting institution. Its
extraordinary faculty features world-renowned scholars teaching
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THE CITY UNIVERSITY OF
NEW YORK NOW BOASTS
10 SENIOR COLLEGES,
SIX COMMUNITY COLLEGES,
A DOCTORAL-GRANTING
GRADUATE SCHOOL, A LAW
SCHOOL, AN ACCELERATED
MEDICAL PROGRAM AND
A MEDICAL SCHOOL.
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courses on all levels, from introductory undergraduate classes to small
graduate seminars in CUNY’s nationally-ranked doctoral programs.
Tools for Education
The computer age and the Internet have radically changed the college
experience in the past few years. Virtual classrooms (including on-line

registration, lebrary access and report cards), quizzes over the Internet
and networked dormitory rooms are just a few examples of how
colleges and universities have leveraged technology to both enhance
the learning experience and create efficient academic administration.
To provide such services, CUNY needed to ensure that the
infrastructure would be able to support such diverse and demanding
applications. Yongsoo Ha knew that their infrastructure would need to
be improved. “We were beginning to call upon our network to do
more and more, yet we had not updated the cabling system in almost
10 years. Response time was slow and users had to wait much longer
than they should have—primarily due to an inadequate
cabling system.”
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“EDUCATING STUDENTS
TODAY INCREASINGLY
INVOLVES COMPUTER
TECHNOLOGY. THE CABLING
SYSTEM WILL DETERMINE
WHETHER WE CAN LEVERAGE
OUR NETWORKS TO PROVIDE
A QUALITY EDUCATION.”
YONGSOO HA, CUNY
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Rapid Advancement
More users, new applications, faster Internet connections and efficient
and reliable data transfer were prime considerations in choosing
products to build CUNY’s School of Law’s new network. “Starting with
a good foundation made perfect sense to me. We wanted to install a
system that supported both current and future applications…one we
could put in the wall and forget about,” stated Bill Darios,

Network Administrator.
CUNY’s School of Law looked at several system offerings available on
the market and chose the TrueNet solution from KRONE. Opting for
KRONE’s C6T solution, which is an Anixter Levels XP 7 compliant
solution, CUNY’s School of Law was impressed by the performance
capabilities of the KRONE products—both in electrical performance
and data carrying capacity. According to Yongsoo Ha, “We wanted a
system that was perfect from one end to the other. KRONE’s C6T, we
felt, was as good as they came. Made by one company, KRONE’s
unequalled warranty program tells me that they believe in, and stand
by, their products and systems.”
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THE TRUENET
™
STRUCTURED
CABLING SYSTEM IS A
REVOLUTIONARY SOLUTION
FROM KRONE THAT
ELIMINATES YOUR NETWORK
RETRANSMISSION PROBLEMS
IN THE PHYSICAL LAYER.
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The Existing System
The City University of New York School of Law had been operating a
10 Mbps Ethernet network for several years with no complaints. Then
the sudden and exponential demand for Internet access and e-mail
brought the network to its knees—creating an unacceptable response
time for most users on the network. The primary problem was the
cabling system, a combination of Category 3 and Category 5 products
that had been installed over the years. The installed system was able

to support slower speeds, but not the 100 Mbps traffic the University
was beginning to deploy.
Attenuation
NEXT
Attn. Cat 5e
NEXT Cat 5e
db/100m
0
-10
-20
-30
-40
-50
-60
-70
-80
Pre-Installation* ACR
0 50 100 150 200 250 300 350
Source:
ANIXTER LEVELS LAB
®
Frequency (MHz)
*
These numbers are based on a worst-case scenario.
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