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www.cablinginstall.com
January 2010Solutions for Premises and Campus Communication Systems Worldwide Solutions for Premises and Campus Communication Systems Worldwide
Check your cable’s pedigree
The value of fi ber raceway
Analyst predicts UTP’s dominance
Self-containeddata centers
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_____________________
© 2009 Corning Cable Systems LLC
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It’s not just a cabinet.
It’s a cost savings
investment.
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cabinets and 3,400 square feet of floor space.
A typical data center deploying standard cabinets
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• Design for future growth without pre-install-
tion of unneeded power and cooling equipment
Optimize.
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Unrivaled Integrated Solutions
OCC is recognized as the gold standard in an industry that
demands speed, technology, and durability. We have broadened
our scope, creating a single source of integrated solutions for our
customers. Our expanded product offering includes fiber-optic
and copper cabling, as well as connectivity components designed
for commercial, specialty, and harsh-environment applications.
800-622-7711 | Canada 800-443-5262
To learn more, visit occfiber.com or call for a free catalog.
Every so often, we like to add an extra 25,000 new items to our product offering.
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departments
CABLING INSTALLATION & MAINTENANCE © 2010 (ISSN 1073-3108), is published 12 times a year, monthly, by PennWell Corporation, 1421 South Sheridan Road, Tulsa, OK 74112; telephone (918) 835-3161; fax (918) 831-9497; Web address www.pennwell.com. Periodicals postage paid at Tulsa, OK 74112 and other additional offi ces. Subscription rate in the USA: 1 yr. $88, 2 yr. $119, BG $161; Canada/Mexico: 1 yr. $98, 2 yr. $132, BG $178; International via air: 1 yr. $120, 2 yr. $160, BG $216; Digital: 1 yr. $60. If available, back issues can be purchased for $22 in the U.S. and $32 elsewhere. Editorial offi ces: 98 Spit Brook Road, Nashua, NH 03062-5737; telephone (603) 891-0123. All rights reserved. Authorization to photocopy items for internal or personal use, or the internal or personal use of specific clients, is granted by CABLING INSTALLATION & MAINTENANCE (ISSN 1073-3108), provided that the appropriate fee is paid directly to Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923 USA; (978) 750-8400. Prior to photocopying items for educational classroom use, please contact Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923 USA; (978) 750-8400. For further information, check CCC Online at the following address: http://www.copyright.com/. All rights reserved. No material may be reprinted. Bulk reprints can be ordered from The YGS Group (cim@theygsgroup.com). Corporate offi cers: Frank T. Lauinger, Chairman; Robert F. Biolchini, President and CEO; Mark Wilmoth, Chief Financial Officer.
We make portions of our subscriber list available to carefully screened companies that offer products and services that may be important for your work. If you do not want to receive those
offers and/or information via direct mail, please let us know by contacting us at List Services Cabling Installation & Maintenance, 98 Spit Brook Road LL-1, Nashua, NH 03062.
POSTMASTER: Send address changes to: Cabling Installation & Maintenance, P.O. Box 3425, Northbrook, IL 60065-3280. Return undeliverable Canadian addresses to: P.O. Box 122, Niagara Falls, ON, Canada L2E 6S4. PRINTED IN THE USA. GST No. 126813153 Publications Mail Agreement no. 1421727
features
CO
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ON
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www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 3
JANUARY 2010 VOL. 18, NO. 1
7 Examining shielded cabling for ultra-high-speed transmissionRecent lab testing and other research keep shielded systems in the
game for today and tomorrow. PATRICK MCLAUGHLIN
11 Optical fi ber raceway changes with the timesThe use of raceway provides users with fl exibility, supports changing
technology needs, and can save money. KEVIN JOLLY, RCDD
17 The importance of your cable’s pedigreeA paper trail of documentation confi rming performance can provide
peace of mind before a reel of cable is pulled. CAROL EVERETT
OLIVER, RCDD/ESS
23 Self-contained data centers the right fi t for someThe city of Coral Springs, Florida runs a self-contained data center
with its own A/C and fi re-suppression systems. RICK BARR, RCDD
28 Infrastructure suppliers team with IBM on modular data centerIntroduced in mid-2009, IBM’s Portable Modular Data Center
can house recognized brand-name layer-one systems. PATRICK
MCLAUGHLIN
30 INDUSTRY SPOTLIGHT
■ Analysts: WiMAX market rebounding quickly
ABOUT THE COVER
Self-contained data centers
provide convenience
and energy-effi ciency
advantages, and can be
deployed with recognized
cabling brand name
products.
TO LEARN MORE, SEE
ARTICLES ON PAGES 23
AND 28.
4 EditorialCabling and LEED
33 New Products
36 PerspectiveCopper cabling to remain
structured cabling market leader
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______________
PATRICK McLAUGHLIN
Chief Editor
patrick@pennwell.com
Group Publisher / Susan Smith
(603) 891-9447 • susans@pennwell.com
Chief Editor / Patrick McLaughlin
(603) 891-9222 • patrick@pennwell.com
Senior Editor / Matt Vincent
(603) 891-9262 • mattv@pennwell.com
Marketing Manager / Joni Montemagno
Art Director / Kelli Mylchreest
Production Manager / Valerie Richards
Senior Illustrator / Dan Rodd
Audience Development Manager / Michelle Blake
Ad Traffi c Manager / Bettie Gaines
EDITORIAL OFFICESPennWell Corporation,
Cabling Installation & Maintenance
98 Spit Brook Road LL-1
Nashua, NH 03062-5737
Tel: (603) 891-0123, fax: (603) 891-9245
www.cablinginstall.com
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CORPORATE OFFICERS
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4 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
Cabling and LEED
In November the United States
Green Building Council (USGBC)
issued what it calls a pilot credit
as part of its Leadership in Energy
and Environmental Design (LEED)
program. Organizations striving to
have their properties recognized as
“green buildings”
apply to the US-
GBC for credits;
those that accu-
mulate enough
credits attain
what is known as
LEED certifica-
tion and are rec-
ognized as green buildings. USGBC
issues pilot credits to test and refi ne
its crediting program.
Of great signifi cance to our indus-
try is that the pilot credit issued in
November specifi cally mentions cable
and wire-jacketing, and in particular
the chemicals within them, as con-
siderations for the LEED credit. Th e
credit is offi cially called “PBT Source
Reduction: Dioxins and Halogenated
Organic Compounds.” Th e term PBT
is an abbreviation for “persistent bio-
accumulative toxic” and in this case
refers to compounds used to make up
cable and wire jacketing.
While the offi cial wording in US-
GBC documentation states “build-
ing-installed electrical cable and wire
jacketing” (emphasis added), sever-
al indicators lead me to believe that
communications cable will be consid-
ered as part of this pilot credit. Chief
among those indicators is the specif-
ic mention in the credit description
of chemicals and materials that are
regularly found in communications
cables and not so much in electrical
cables. Namely, all chemicals contain-
ing chlorine and fl uorine—including
polyvinyl chloride (PVC) and fl uori-
nated ethylene propylene (FEP)—are
on the list.
Over the past couple years several
of our articles, including some of my
commentaries in this column, have
discussed the apparent lack of a tan-
gible connection between the design
and installation of cabling materi-
als, and the opportunity for a prop-
erty to earn LEED points as a result.
It looks to me like the connection is
fi nally here, although it may be diffi -
cult to attain.
When I fi rst put word of this cred-
it onto our blog the immediate re-
action from those who commented
was along the lines of “yabut.” As in,
“Yeah, but … it’s such a small part of
the building system it won’t make a
diff erence anyway.” Or, “Yeah, but
… my projects require plenum cable
and good luck fi nding one without
those chemicals.” Valid points, each
of them. But I’m taking the content
of this pilot credit from the USGBC
as an indication that the organization
is focused on the chemicals and ma-
terials that go into building products,
far more than it is on the design or in-
stallation workmanship practices by
which they are put in place.
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Which of these is a bigger threat to your security investment?
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• The migration of a security system to IP
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• Increasing bandwidth requirements
• The need for Power over Ethernet Plus and beyond
• Installation practices
• Environmental conditions
• Quality of IP cable manufacturing
The right cabling infrastructure is critical to the successful operation and useful life of a security system. Anixter ipAssuredSM is an infrastructure assurance program that matches
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Contact your local Anixter representative or visit anixter.com/ipassured10 to learn how Anixter ipAssured can protect your security investment.
Receive the best performance for the anticipated life of your security system
by installing an ipAssured cabling infrastructure.
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Siemon is proud to introduce its new XLR8mechanical splice connector and termination system for fiber optic cabling. The XLR8 systemincorporates an exclusive dual-process activationtool which dramatically reduces termination timeper connector. The combination of the XLR8 tooland Siemon's new pre-polished XLR8 mechanicalsplice LC and SC connectors drives the deployment of high-performance fiber links withunsurpassed termination speed and quality.
To maximize termination speed and connector performance, Siemon’s XLR8 systemwas designed from the ground up to reduce the termination process to a single optimized and intuitive step. The process combines splicing and crimping into asingle step as opposed to more common multi-step products. The simplified XLR8design cuts termination times in half compared to competing systems, enablingfaster and more efficient delivery of fiber cabling links. The reduction in steps alsolimits excess operator handling of connections during termination that can negatively impact splice integrity and link performance.
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________________
www.cablinginstall.com
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 7
design
The long-running story for shielded twisted-
pair cabling systems, in the North American
marketplace at least, has been that of a medium
whose performance has never been questioned
but whose implementation has never quite
caught on for practical reasons. Perhaps the two most
signifi cant reasons are cost and an ease-of-use reputa-
tion that has been debated. Shielded twisted-pair cable
in any construction—F/UTP with a single foil over the
four twisted pairs, S/FTP with a braided shield over four
wire pairs that themselves are foil-shielded, or any other
shielded construction—is a more expensive product
than unshielded twisted-pair cable of the same category.
Th e cable type also can be more labor-intensive for in-
stallers to work with, and generally is not as fl exible as
unshielded twisted-pair (UTP) cable. Plus, historically,
networking protocols that shielded cabling supported
were also supported by UTP.
North America’s rejection of shielded cabling has not
been matched in all parts of the world, as evidenced by
the International Organization for Standardization’s
(ISO; www.iso.org) development of Class F/Category 7
specifi cations as well as Class FA/Category 7A specifi ca-
tions while the Telecommunications Industry Associa-
tion (TIA; www.tiaonline.org) has not progressed toward
a Category 7 specifi cation. ISO’s Class F/Category 7 spec-
ifi cations, fi nalized in 2002, defi ne system performance
to 600 MHz and its Class FA/Category 7A specifi cations
defi ne system performance to 1,000 MHz; both stan-
dards describe fully shielded cabling systems.
10GBase-T takes the stage
Th e notion that “anything shielded can do, unshielded
can also do” was called into question during the ear-
ly development stages of cabling systems meant to sup-
port 10GBase-T, the twisted-pair version of 10-Gigabit
Ethernet. Th e most diffi cult electrical performance char-
acteristic associated with 10GBase-T was and remains
alien crosstalk—noise from what have become known
as “disturber” cables making its way onto what have be-
come known as “victim” cables. As twisted-pair cable
manufacturers put in signifi cant research-and-devel-
opment eff orts to produce unshielded cables that could
handle alien crosstalk well enough to successfully carry
10GBase-T traffi c, many North American users began
considering using shielded cabling systems for the fi rst
time in a long time, or the fi rst time ever.
Although the marketplace is now populated with
many options of UTP cables that meet the fi nal Catego-
ry 6A performance specifi cations, considerations over
whether to use unshielded or shielded systems to sup-
port 10GBase-T remain.
Recently the AMP Netconnect division of Tyco Elec-
tronics (www.ampnetconnect.com), which has been a
long-time advocate of using shielded systems for 10GBase-
T transmission, publicized results of testing conducted at
an independent lab. Th ose tests compared Class EA (Cate-
gory 6A) systems of unshielded and shielded constructions
in terms of their performance when carrying live 10GBase-
T traffi c. According to Tyco, the testing included two UTP
systems, one F/UTP system, and two S/FTP systems.
It would surprise no one that an advocate of shielded
systems would produce test results showing that shield-
ed outperformed unshielded. And that’s exactly what the
results indicate.
Conducted by third-party test laboratory GHMT AG
(www.ghmt.de) located in Germany, the study compared
the fi ve diff erent cabling systems, which were from fi ve
diff erent manufacturers. Key fi ndings that Tyco men-
tioned in its announcement of the study included that
shielded systems off er high coupling attenuation and
therefore high levels of alien crosstalk and electromag-
netic compatibility performance. ➤
Examining shielded-cablingfor ultra-high-speed transmission
Recent lab testing and other
research keep shielded systems in
the game for today and tomorrow.
PATRICK MCLAUGHLIN is chief editor of Cabling Installation &
Maintenance.
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OM4 is on the horizon. Get ready with LaserWave® Fiber.
The future is here. LaserWave 550 fiber from OFS exceeds the requirements ofthe emerging OM4 standard for high-speed networks. No multimode fiber offershigher bandwidth for tomorrow’s 40 Gb/s and 100 Gb/s applications. And it’sDMD-tested to deliver more than twice the bandwidth for lasers that launchpower in the fiber’s center. Enjoy fast, reliable transmission and easier connectivity.To learn more, ask your cabler about OFS or visit ofsoptics.com/fiber.
8 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
By carrying out the study and publicizing these and oth-
er results, Tyco appears to be making the point that on an
application for which there is a standardized UTP solution,
shielded cabling is a superior choice from a performance
standpoint. Tyco established the Web site utp-vs-stp.com,
at which it provides layers of detail on the study, some test
results, and conclusions that Tyco has drawn based on the
data.
Once the study results reached social media networks and
specifi cally cabling-industry groups within those networks,
the fur began fl ying and as of this writing it still is. Much of
the banter, not surprisingly, has been between representatives
of Tyco and representatives of other cabling-system manufac-
turers. Th e debate has centered around some now-familiar top-
ics related to 10GBase-T and shielded cabling, including alien
crosstalk and earthing/bonding of shielded systems. Some
of it has also focused on the study itself and the fact that just
two UTP systems were tested, and whether or not it is valid
to hold those two systems up as representative of all Catego-
ry 6A UTP cabling systems. Critics of the Tyco study are also
saying that this lone test has produced worthwhile data, but
signifi cantly more testing must be done for results to be con-
sidered repeatable.
40 and 100-Gbit
Meanwhile, some proponents of shielded cabling have begun
to turn their attention toward the next generation of Ethernet-
based transmission: 40- and 100-Gbit Ethernet.
Currently the Institute of Electrical and Electronics Engi-
neers’ IEEE P802.3ba Task Force (www.ieee802.org/3/ba/) is
developing Ethernet protocols with operating speeds of 40 and
100 Gbits/sec, and the group expects to complete the project
and obtain fi nal approval in June 2010. On November 20, 2009,
the IEEE 802 Executive Committee approved forwarding the
draft of the standard for Sponsor Ballot, the fi nal of the two
balloting stages in the approval process.
Th e only copper-cabling type recognized in the 802.3ba proj-
ect is twinaxial, Infi niband-style cabling. No twisted-pair media,
shielded or unshielded, is accounted for in the draft standard.
Th e twinaxial cabling confi gurations allow only for short-reach
transmission. Th e 40- and 100-Gbit specifi cation calls for longer-
distance transmission over fi ber-optic cabling exclusively.
Last summer, a group of engineering professionals from the
cabling and networking industries convened with research-
ers at Penn State University in a two-day workshop entitled
“Greater than 10 Gbps Copper Ethernet Workshop” (cictr.ee.psu.
edu/WORKSHOP/). Th e workshop was sponsored by Nexans/
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________
_____________
©2009 Greenlee Textron Inc. is a subsidiary of Textron Inc.
For over 30 years, Paladin has been delivering premium-grade,
innovative tools for voice-data-video professionals. Paladin is now part
of Greenlee, an industry leader in electrician’s tools and the top choice
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Berk-Tek research center in Pennsylva-
nia, the Nexans Data Communications
Competence Center (DCCC). “Th e re-
search conducted by Penn State cov-
ers the theoretical feasibility of going
beyond 10G, up to 100G over copper
twisted-pair,” according to Dave Hess,
technical manager in research and de-
velopment at Nexans DCCC (www.nex-
ans.com) and a workshop presenter.
“Th e focus of the workshop was to in-
vestigate general technical feasibility,
cabling requirements, and market driv-
ers in support of Ethernet LAN speeds
greater than 10 Gbits/sec,” states Valer-
ie Maguire, global sales engineer with
Siemon (www.siemon.com), who also
presented at the workshop.
Th e general sense from workshop
participants was that the prospect of
transmitting 40- and 100-Gbit Ether-
net traffi c over twisted-pair cabling for
some distance is technically feasible
based on theory and modeling, but the
twisted-pair cabling would have to be
fully shielded.
One presentation addressed the stan-
dardization process within IEEE 802.3.
According to at least one workshop par-
ticipant, however, proponents with an
ambition to get shielded twisted-pair
cabling specifi ed into an IEEE 40- and
100-Gbit Ethernet standard may face
a tough challenge. Geoff Th ompson, a
consultant with deep roots in the IEEE
802.3 heritage, explains that such pro-
posals to IEEE must meet fi ve criteria
to be accepted. “Th ree of the fi ve are
traditionally the most diffi cult to meet
and are interconnected,” Th ompson
says. “Th ey are: broad market poten-
tial, technical feasibility, and econom-
ic feasibility.”
While those criteria may not appear
to be instant roadblocks for provid-
ers of shielded cabling systems, IEEE
802.3-based standards cover hardware-
system signaling, not cabling systems.
When viewed from a cabling perspec-
tive, the technical and particularly the
economic feasibility may be simple
when compared to the challenges fac-
ing manufacturers of semiconductors.
Th e technical and fi nancial investments
these companies would have to make
may be deal breakers for the prospect
of 40- and 100-Gbit Ethernet over twist-
ed-pair cabling, particularly consider-
ing the smaller size of the market at the
core of the network.
More market and technical research
will be conducted before a decision
is made concerning whether or not
shielded twisted-pair cabling will ev-
er support standardized transmission
speeds of 40- and 100-Gbit/sec. Today,
the medium remains a part of the dis-
cussion as 10GBase-T network switch-
es begin hitting the market.
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_______
______
For nearly two decades, our LANmark™UTP cables have been leaders in the cabling industry. LANmark-10G2, LANmark-2000, LANmark-1000, and LANmark-350™ continue to be four of the highest performing UTP cables manufactured in the United States today.
Through the ETL LANmark Verification Program, Intertek now provides you with independentthird-party verification that LANmark Category 5e, 6, and 6a cables will perform to ourspecifications, not just to the standard. So you can be sure that you receive every dB ofperformance that you specify. Who else other than Berk-Tek will verify and guarantee that?
No matter which LANmark UTP product you choose, all offer guaranteed performance thatexceed industry standards, providing headroom to support evolving applications…for many years to come.
For more information on verified performance of Berk-Tek’s premium LANmark UTP products, call 1-800-BERK-TEK or visit www.berktek.com. Search Term: ETL VERIFIED
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Verified performance. Beyond the standards. Beyond our specifications. Beyond your expectations.
LANmark-2000
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LANmark-1000
LANmark-350
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www.cablinginstall.com
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 11
installation
With constantly emerging tech-
nologies and ever-increasing bandwidth
demand, today’s optical fi ber network infra-
structures require the fl exibility to support
upgrades, modifi cations, and additions.
Th e concept of installing reusable optical fi ber raceway
systems throughout homes and buildings to support fu-
ture upgrades is not new, and it has been recommended
by industry experts time and again. Unfortunately, there
remains a misconception among many that a two-stage
installation is cost-prohibitive. As
a result, many opt to install other
solutions to protect fi ber, such as
interlocking armored cables.
When it comes to providing the
fl exibility to upgrade fi ber infra-
structure, not to mention comply-
ing with the National Electrical
Code requirements to remove
abandoned cable, nothing per-
forms quite like today’s optical
fi ber raceway systems, which ulti-
mately provide a lower total cost of
ownership than other options.
Reasonable price point
Th e two-stage process refers to
the installation of a standards-
compliant optical fi ber raceway
like innerduct, followed by the
installation of the cable through
the raceway. Th is type of installa-
tion has oft en been criticized for
its higher upfront labor and materials costs. However,
the materials costs for today’s raceway and standard op-
tical fi ber cable have decreased to the point where the to-
tal cost of a two-stage installation is now much closer to
that of other options. Interlocking armored cables can
cost several times that of standard riser-rated cable and
require additional material and labor for properly bond-
ing and grounding the armor, making the additional la-
bor of a two-stage installation a non-issue.
While the cost diff erence between a two-stage instal-
lation and other options for protecting fi ber is minimal,
the real savings happen aft er installation. Today’s enter-
prise customers are more concerned with lifecycle costs
than ever before. Th ere is tremendous shift in how infor-
mation technology (IT) managers think when making
deployment decisions. Instead of only justifying
This cross-sectional view of a commercial offi ce building shows the path that an optical fi ber
raceway takes through a facility. Having a raceway like this in place makes it easy for users to
add cables to, or remove them from, the network.
➤
Optical fiber raceway changes with the times
The use of raceway provides users with
flexibility, supports changing technology
needs, and can save money.
KEVIN JOLLY, RCDD is national sales manager for KwikPath products
from Ipex (www.ipexinc.com).
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Stewart Connector
PLUGS-CAT 3 to 7a
www.stewartconnector.com • 717/235-7512
Premise WiringCAT 6 • CAT 6a • CAT 7aModular Plugs & Jacks
•For Solid & Stranded Cable•Shielded and Unshielded
• Polished Contacts for High
•Multiple Keying and Wire Insertion Life
Management Options
JACKS-CAT 3 to 7a
•Horizontal, Vertical, and Angled•Shielded and Unshielded
• Single and Multi-Port Designs•PCB and Cable Mounted Designs
Mounting Options
Stewart Connector understands that specifying and sourcing quality modular connectors for premise and campuswide communications systems can be a tough job. Especially as technology, standards, and products continue to evolve. That is why we’ve engineered our plugs and jacks to ensure your networks’ superior performance... today and tomorrow.
12 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
upfront deployment costs, the focus is now
on ensuring a return on investment over
the network’s lifetime. Th is new way of
thinking is permeating all areas of con-
struction, made evident by the “green”
movement that has companies willing to
spend a little more upfront for reduced en-
ergy costs over a facility’s lifetime.
Any increase in initial installation be-
comes inconsequential when consider-
ing that operation and retrofi t expenses
make up 75% of a building’s lifecycle
costs over a 40-year period, as compared
to just 11% for construction. Th erefore,
any technology that cuts down on oper-
ational and retrofi t expenses will have a
much higher impact on reducing total
cost of ownership.
Today’s companies are constantly up-
grading and adding optical fi ber to back-
bone and horizontal infrastructures in
riser and plenum spaces and data centers.
Additionally, the NEC requires the remov-
al of abandoned cables, which are defi ned
as any installed cable not terminated and
not identifi ed for future use.
When it’s time to switch outdated or
damaged optical fi ber for newer advanced
technologies, or add more fi ber to sup-
port increased demand, having an optical
fi ber raceway in place makes the job sig-
nifi cantly less expensive than it would be
without such a system. Outdated fi ber is
easily pulled out of the raceway and used
as a pull rope to pull in the new fi ber. Al-
ternatively, the interlocking armored fi ber
must be completely removed upon aban-
donment, a time-consuming process that
requires accessing the entire route of the
cable and potentially disrupting the sur-
rounding work environment.
Beyond removal of abandoned cable and
installation of new fi ber, optical fi ber race-
way and a two-stage installation can pro-
vide additional cost benefi ts. For example,
if lead times on cable are delayed, contrac-
tors can install the raceway and pull in fi -
ber at a later date, aft er walls and ceilings
are in place in a new-construction project.
Th is can help keep a project on schedule
and avoid delaying other trades. Further-
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more, other means of protecting fi ber infrastructure like inter-
locking armored fi ber or electrical metallic tubing (EMT) still
require the time and cost to properly bond and ground metal-
lic elements per TIA-607 standards.
Preparing for the future
One of the most signifi cant benefi ts to installing an optical fi ber
raceway is the ability to easily upgrade to meet future technol-
ogy needs. Technology is constantly changing. Already OM4
fi ber cables have been developed to support 40- and 100-Giga-
bit Ethernet, and technologies like Fibre Channel over Ethernet
may require cable upgrades. Other new technologies like serv-
er virtualization and Internet Protocol convergence are con-
stantly increasing the amount of data being transmitted and
stored, requiring either more or more-advanced optical fi ber
to be added to the network.
In situations in which there is uncertainty about how net-
work requirements will grow or change, the use of optical fi ber
raceway means that customers only have to pay for and install
the type of fi ber they need today, versus paying for dark fi ber
that may become damaged or obsolete. With raceway installed,
any type of fi ber is easily pulled when needed, based on actual
network requirements. And because fi ber is so easily removed
from the raceway, it can also be relocated and reused in other
areas to accommodate moves, adds, and changes.
Ease of use
Several advances in today’s optical fi ber raceway make it easi-
er to use than ever before. Available in riser, plenum, and resi-
dential ratings and in a variety of sizes, fi ber raceway can
The two-stage process of installing a standards-compliant optical fi ber
raceway followed by the installation of cable through the raceway, as
shown here, offers lower lifecycle costs than other alternatives.
➤
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_____________________________________
©Server Technology, Inc. Sentry is a trademark of Server Technology, Inc.
Solutions for the Data Center Equipment Cabinet
1040 Sandhill DriveReno, NV 89521—USA
Server Technology Inc
sales@servertech.comwww.servertech.comwww.servertechblog.com sales@servertech com
tf +1.800.835.1515tel +1.775.284.2000fax +1.775.284.2065
How Do You AddIntelligent PowerMonitoring to anyExisting Cabinet?
With Smart Power Monitor™
Easily Add Intelligent Monitoring and Management
Smart Power Monitor > Provides SNMP traps and email alerts on power
and environmental conditions
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> Determine if you are close to exceeding the circuits capacity, proper loading for redundancy, or to balance 3-Phase circuits
> Network and Serial Connection for in band and out of band communications
> Perfect for Server or Storage (SAN) Applications
> Easily added to any existing cabinet
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Validate Copper,Fiber,andWireless
Test all the connectivity in your LAN with
one economical tool—the innovative JDSU
ValidatorPRO™ or ValidatorPRO-NT™.These
industry-first, all-in-one Ethernet speed
certifiers with integrated optical power meters
let you ensure cable runs will support Gigabit
Ethernet over copper, test fiber cabling, and test
wireless with 802.11b/g/n features to accelerate
network turn-up and testing.
The ValidatorPRO-NT™ offers the added ability
to confirm network connectivity through port
discovery, ping, and layer 2 discovery protocols.
For networks that use Power over Ethernet, the
ValidatorPRO-NT can report voltage and current.
And, ValidatorPRO-NT allows you to test not only
wired but also wireless LANs with 802.11b/g/n
WLAN discovery.
Get your ValidatorPRO and the entire line of
JDSU network and enterprise test tools through
our worldwide distributor network. Find the
distributor near you at www.jdsu.com/know.
Know theNetwork
ValidatorPRO™ (NT1150) and
Validator PRO-NT™ (NT1155) Ethernet Speed Certifier
with Integrated Optical Power Meter
meet virtually any application.
Optical fi ber raceway is fl exible, mak-
ing it easy to install around corners. Ac-
cessories are available to further ease
installation, retrofi ts, and future up-
grades. Convenient snap-on couplers
facilitate joining lengths of raceway to-
gether while terminal adapters provide
seamless transition to junction boxes,
outlet boxes, and fi ber enclosures. Newer
solutions can make it easy to branch off
from existing raceway to support new
spaces in retrofi t and new construction
without removing existing cabling. Ac-
cessories such as
couplers can elim-
inate the need for
traditional metal
junction boxes
or ineffi cient hole-cutting to connect a
new branch. Other accessories available
today include fasteners and clamps for
securing raceway, as well as end plugs to
close raceway ends. Inserting end plugs
is ideal for keeping empty raceway clean
and ready for future use.
Over the past few years there has been
a dramatic evolution of communica-
tions systems, and this evolution does
not appear to be slowing down any time
soon. Th e most convenient and cost-ef-
fective way to upgrade cables, add cables,
and ensure easy removal of abandoned
cables is to use optical fi ber raceway
systems.
While some other options are put
forth as cost-eff ective alternatives to a
two-stage installation, aft er only one
change or upgrade it becomes appar-
ent that optical fi ber raceway ulti-
mately provides a lower total cost
of ownership. Minimal upfront
cost saving on labor is not a good
enough reason to give up fl exibility,
especially considering the inevitability
of change and the shift toward sustain-
able design that ultimately lowers life-
cycle costs. Optical fi ber raceway makes
good sense.
Many accessories like snap-on couplers facilitate joining lengths of raceway together, while termi-
nal adapters provide seamless transition to junction boxes, outlet boxes, and fi ber enclosures.
Shown here is the KwikPath Y-Coupler from Ipex, part of an optical fi ber
raceway system that allows users to branch off from existing raceway
to support new spaces in retrofi t and new-construction projects without
having to remove existing cabling.
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 15
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__________________
For industry-leading performance in 10GBASE-T network applications, choose eXtreme® CAT 6A
structured cabling solutions. Component-rated patch panels, connectors, and patch cords provide
superior channel margins. Patent-pending triple stage compensation and isolation gaps minimize
alien crosstalk (AXT) and support other critical TIA parameters. We even guarantee permanent link
performance for distances as short as 10 feet.
Best of all, certified installations include a limited lifetime warranty. So don’t wait.
Visit leviton.com/cat6a or call 800.722.2082 today to learn how eXtreme CAT 6A solutions can
maximize your network’s performance.
Extreme Network Demands?
Get eXtreme® 6A Performance.
LEVITON.COM | P 800.722.2082 | F 425.483.5270
ISO 9001:2000 registered quality manufacturer | © 2009 Leviton Manufacturing Co., Inc
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________
www.cablinginstall.com
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 17
technology
When you specify commu-
nications cabling, do you take for
granted that it meets industry stan-
dards because it is labeled a “Cat-
egory 5e” or “Category 6”? Is the jacketing marked
with proper code and safety ratings? As bandwidth
and transmission speeds increase exponentially and
additional disparate devices are becoming attached to
the same network, the need to assure that your cabling
system can live up to your expectations be-
comes increasingly important.
Most of us accept that cables defi ned as
“Category 6” meet the appropriate TIA-568 re-
quirements for certain electrical parameters.
Unfortunately, substandard cables are making
their way into the marketplace. Some of these
cables might not pass Category 3 requirements
or support POTS transmission. Of even great-
er concern to many is that some of these cables
do not meet proper fi re-safety codes. Giving
rise to these cables’ appearance is that some
end users continue to purchase on price ver-
sus proven performance and quality.
If your installed cable plant does not meet es-
tablished performance standards, or does not
meet proper codes, the results can be extremely
costly. Th e best way to assure that the cable be-
ing specifi ed and installed meets such specifi -
cations is to look at the paper trail on the particular cable.
In other words, look at its “pedigree.” You can do this by
carefully examining the manufacturer’s data sheets and
testing results from credible independent testing labs.
For safety’s sake
Th e primary reasons to assure that communications ca-
bles meet their specifi ed ratings are for public safety and
to avoid any potential liability issues. Secondary is that
the installed cables meet minimum standards for both
physical and electrical performance, or the network could
fail and cause costly downtime. Replacing cable is very
low on any network manager’s list of desirable activities,
but if the cable is not deemed safe or does not meet perfor-
mance specifi cations, it could have costly repercussions.
Over the years a number of fi re safety standards for da-
ta communications cable have evolved in North America
and the European Union. Th e standards that dominate
data communications cable fi re testing are described
in the National Electrical Code (NEC) administered by
the National Fire Protection Agency (NFPA; www.nfpa.
org); the Canadian Standards Association (CSA; www.
csa.ca) fi re test standards, and through European stan-
dards EN50266 Common Test Methods for Cables Under
Fire Conditions; and IEC 60332-3 Tests on Electri-
Performance testing carried out by manufacturers and independent test
laboratories can include the setup of cables in environments that mirror real
life, such as being laid in bundles inside cable trays. This photo was taken at
the Nexans Data Communications Competence Center.
➤
The importance ofyour cable’s pedigree
A paper trail of documentation confirming
performance can provide peace of
mind before a reel of cable is pulled.
CAROL EVERETT OLIVER, RCDD/ESS Specialist is marketing analyst
with Berk-Tek, a Nexans Company (www.berktek.com).
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_______
____
18 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
cal and Optical Fibre Cables Under Fire Conditions.
Th e NEC contains articles that cover specifi c types of prem-
ises cabling installed in buildings, and cables must pass Un-
derwriters Laboratories/NFPA fl ame tests to comply with these
codes. When a cable passes these stringent tests, the legend
on the cable jacket and on the box should be marked with the
proper rating.
Recently the Communications Cable and Connectivity As-
sociation (CCCA; www.cccassoc.org), of which Berk-Tek is a
member, released results of eight Category 5e and Category 6
cable samples it tested aft er purchasing those cables through
distribution. None of the cables were made in North America,
but were being distributed on this continent.
Th e tests were a follow-up to similar tests the association con-
ducted in 2008, in which it found eight of nine cables failed to
meet fi re-safety requirements. In the more recent testing, the
CCCA found that four of the fi ve companies that failed in 2008,
failed again. According to CCCA executive director Frank Peri,
“Th e failing products were made with inferior materials and de-
signs to save on production costs and they predictably failed
the minimum fi re safety requirements. Our association is co-
operating with major independent telecommunications indus-
try testing agencies to establish a stronger approach to assure
compliance with safety standards.”
In addition to failing fi re-safety tests, three of the eight ca-
bles tested failed to comply with minimum electrical perfor-
mance requirements for Category 5e or Category 6, for which
these cables claimed independent test certifi cations.
Third-party testing
Th ird-party laboratories off er testing of products as well as mon-
itoring of manufacturing processes. Th ese services help assure
product reliability, safety, and consistent quality, consequently
off ering peace of mind and return on investment for the end us-
er and the contractor. Under these third-party programs, ran-
dom samples of products are selected independently by the lab
or submitted from the participants to be inspected and tested
for their conformity to the applicable test standard.
Th ird-party labs incorporate industry-specifi c test methods
to evaluate, inspect, verify, and document. Th ird-party labs
are recognized by the Occupational Safety and Health Ad-
ministration (OSHA; www.osha.gov) as Nationally Recog-
nized Test Laboratories (NRTLs), and are further accredited
by one or more organizations such as the American National
Standards Institute (ANSI; www.ansi.org), the Federal Com-
munications Commission (FCC; www.fcc.gov), the National
Institute of Standards and Technology (NIST; www.nist.gov),
and the American Association for Laboratory Accreditation
(A2LA; www.a2la.org) to be able to test to standards that pro-
vide for verifi cation and safety marks.
Verifi cation and safety marks are based on standards pub-
lished by organizations like Underwriters Laboratories (UL;
www.ul.com), the Telecommunications Industry Association
(TIA; www.tiaonline.org), the International Electrotechnical
Commission (IEC; www.iec.ch), and the International Orga-
nization for Standardization (ISO; www.iso.org). In addition
to product testing, third-party testing labs off er facility and
manufacturing inspections as well as ongoing follow-up test-
ing of randomly selected samples.
Product failures can result in product disqualifi cation un-
less corrections are made by the manufacturer and retesting is
performed. A verifi cation or certifi cation mark by an approved
third-party lab allows the manufacturer to label its products
as compliant and assures the customer that the products they
purchase meet the manufacturers’ specifi cations.
Verifi cation testing
One of the most valuable testing programs is verifi cation test-
ing. It can be requested from manufacturers, suppliers, or end
users. Initial qualifi cation of cable usually includes verifi ca-
tion through a network analyzer performed by a third-party
test lab that will authenticate that the cable meets or exceeds
the industry standards. “Th e fi rst step to any verifi cation test-
ing and product qualifi cation is to use the industry standards
called out in the TIA or ISO to level the playing fi eld and de-
fi ne the parameters or characteristics to be tested,” explains
Vicki Staff ord, account manager with independent test lab In-
tertek (www.intertek.com).
Network analyzers, the most sophisticated test instruments
used in our industry, off er extremely accurate results in a lab-
test environment. Both TIA and ISO standards recognize this
tester to produce exact results through mathematics and on-
going calibration. “For testing the cable and the entire channel,
there are procedures within the network analyzer that exclude
the eff ect of the interconnecting cables and connectors located
between the analyzer and the device under test, so that
For a cable to meet fl ame requirements such as those administered by
the National Fire Protection Association, it must be tested in setups,
such as the one shown here, in laboratory environments.
➤
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©20
09
Co
rnin
g In
corp
ora
ted
. All
rig
hts
res
erve
d. C
orn
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an
d C
lear
Cu
rve
are
reg
iste
red
tra
dem
arks
of
Co
rnin
g In
corp
ora
ted
.
Corning® ClearCurve®
Multimode OpticalFiber.
Smarter. Faster. Easier.Greener. Cooler.
You've invested a lot in yourenterprise network. Future proof itwith Corning ClearCurve OM3/OM4
multimode fiber. Its increasedbend resistance handles the rightangles, tight bends and small spacescommon in telecommunicationsclosets and data center racks. Fiberthat handles like copper. Fiber tothe hard to reach places. Finally,fiber that adapts to the real world.
www.corning.com/clearcurve/multimode
Bend therules.
ClearCurve®
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THE BEST in CABLE PROTECTIONBUSHINGSEMT
• Fast & easy press-oninstallation
• Holds tight as cables are pulled
• Protects cable from abrasion
• Less expensive alternative to costly fittings when used just for wire
In a variety of sizesfor 1/2" to 4" EMT, rigid, PVC
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EMT400Also for rigid,IMC and PVC rigid conduit
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Flexible and non-metallic,The LOOP holds a 2" to 5" diameter bundle of CAT5 or fiber optic cable without sagging,bending or damaging the cable!
The 2.5" TL25 holdsthe same amount of cable as a J-hook at1/2 the COST!
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CAM-LIGHT™ KITQUICK, SECURE INSTALLATION of a SECURITY CAMERA on a SUSPENDED CEILING
Cut hole in ceilingtile with a 4" holesaw.
1 Install box. Tightenmounting wingscrews.
2 Add drop wire toloop. Attach toframing member.
3 Add bracket toinside of box.
4 Mount camera tomounting plate. Place on bracket. Turn clockwise to lock. Install set screw.Done!
5
Use Arlington’s CAM-LIGHT™ KIT to install ANY security camera on a suspended ceiling panel. For power or low voltage, it installs FAST with a 4" hole saw,saving time and money.
It’s a tested assembly that holds up to 50 lbs on a suspended or drywall ceiling. It fits ANY security camera hole pattern because you drill the holes in the mounting plate.Larger cameras mount directly to the box flange.
CAM-LIGHT KIT includes a drop wire for overhead support;mounting “wings” for attachment of box to the ceiling panel;1/2" and 3/4" knockouts in the box – and a mounting bracket and plate for the camera.
• Rotates 180 degrees in either direction for proper positioning of camera
• 27.0 cu. inch box in non-metallic, paintable white plastic or steel.Installs ANY security camera on a suspended ceiling!
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LOOP™THE
LOW-COST HANGER
for COMMUNICATIONS CABLE
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 21
only the device under test is precisely and accurately measured,”
explains Antoine Pelletier, datacom engineer at Intertek. Th e
ETL Listed mark, provided by Intertek, is proof of product com-
pliance (electrical, gas, and other safety standards) to North
American and international performance standards.
Some companies provide their own specifi cations and set
higher limits than those stated by industry standards. “Th e
fl exibility at Intertek allows us to focus on our client’s unique
products and their relative testing needs,” Pelletier further ex-
plains. “As a global testing services pro-
vider we welcome opportunities to off er
proprietary testing.”
Berk-Tek used this capability from In-
tertek to have its Category 5e, 6, and 6A
cables tested to levels above those spelled
out in standards for performance charac-
teristics such as crosstalk. Intertek main-
tains a Directory of ETL Verifi ed and ETL
Listed Cabling Products, which is avail-
able at its Web site. Some cabling-prod-
uct manufacturers also include ETL test
reports for their products on their respec-
tive Web sites.
Reputable testing labs test to UL, ANSI,
CSA, ASTM, and NFPA standards. Au-
thorities having jurisdiction (AHJs) in the
50 United States and in Canada, as well
as retailers, accept the ETL Listed mark
as proof of product testing and verifi ca-
tion. However, in order to allow the use of
the “verifi ed” mark, qualifying companies
agree to ongoing testing on a quarterly ba-
sis so that the facility is monitored and
random samples continuously tested.
“Quarterly unannounced visits to the
manufacturing site include inspection
and comparison of the verifi ed product
against drawings, bill of materials, and
test reports to determine that the pro-
duced units are the same as the sam-
ple subjected to the qualifi cation tests,”
Staff ord explains. “In addition, an audit
on the quality control program includes
detailed review of the company’s inspec-
tion of produced material, manufacturing
quality control methods, equipment cali-
bration and maintenance, fi nal inspection
and testing, product handling, packag-
ing, and storing as well as a correspond-
ing and corrective action program and an
analysis of fi eld performance data.”
Th rough the eff orts of watchdog groups and third-party test-
ing, end users can be assured the cable products they specify
and install are certifi ed to perform as advertised as well as pro-
vide assurance of safety and quality. Th ere are reputable man-
ufacturers whose cables adhere to codes and standards; those
products are available in a competitive marketplace.
Th e diffi culty is knowing how to tell them apart. Do not rely
solely on the cable legend. Always ask for proper documenta-
tion and the “paper trail,” or the results can be very costly.
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www.cablinginstall.com data center
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 23
For many a data center manager,
the facility is a collection of cables
and equipment, without much means
to the madness. It works, yes, but is a
noisy environment and very likely is
not as effi cient as it could be. Oft en
the prospect of moving a data center
to a new location, unhooking every-
thing then hooking it back up again,
fi lls data center managers with dread.
Even worse is having to leave every-
thing behind and start over again be-
cause the landlord deemed the data
center a “leasehold improvement.”
Th e concept of a self-contained data
center, developed by Roger Gooch in
2007, has solved these issues for enter-
prise end users in many locations. Th e
self-contained data center goes beyond
the norm of a typical data center solu-
tion and takes into consideration soci-
ety’s mantra of “going green.”
Gooch’s creation, called Data Center
in a Row (DCR), is available through
AFL Telecommunications. Th e City of Coral Springs,
FL is one user of the system. Todd Bayley, network ad-
ministrator for the city, needed a new data center solu-
tion and was looking for cost savings as well as energy
effi ciencies.
“Th e city required the installation of two computer
racking systems in the public safety facility,” Bayley
said. “We awarded AFL Network Services the contract to
install DCR.”
Th e project’s requirements were unique in that the space
was not a traditional computer room environment. With
no uninterruptible power supply (UPS) power, no fi re sup-
pression, and insuffi cient electrical capacity on the fl oor,
Bayley sought a solution that took those issues into con-
sideration. AFL installed the system in less than a month.
Aside from building permits and inspections, the comput-
er room was complete in less than four months.
“Th e DCR system allowed the city to save over
$100,000 in costs by its unique and innovative design,”
claimed Bayley. Specifi cally, he says savings included
the following.
• A self-contained air-conditioning system, eliminating
special room requirements
• A self-contained fi re-suppression system, which negat-
ed the need for a larger system that would cover many
more square feet
• A design that signifi cantly reduced construction and
permitting costs that otherwise would have been
incurred ➤
Self-contained data centersthe right fit for some
The city of Coral Springs, Florida runs
a self-contained data center with its
own A/C and fire-suppression systems.
RICK BARR, RCDD is director of systems engineering with AFL Network
Services (www.afl tele.com).
A self-contained data center, such as the Data Center in a Row shown here, can be
set up in a facility with signifi cantly reduced construction and permitting costs that
would accompany a traditional data center layout.
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_________
24 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
Th e DCR system off ered the lowest installed cost,
was more energy effi cient than a standard setup, and
was quieter, thereby eliminating the need to sound-
proof the room. Th e sprinkler system required no
upgrade because the DCR system is sealed; back-
up cooling via built-in ventilating fans kept costs
down because only the racks, not the entire room,
were cooled. Most importantly, the unit required
no special room construction so it could be placed
in a multitude of city locations.
Spreading the word
Satisfi ed with the results of the installation in Coral
Springs, Bayley approached the City of Miami with
the objective to share a disaster-recovery site in or-
der to keep costs within budget for both cities. One
concern about sharing a site was the need for two completely
independent systems confi ned within one room, which DCR
provided.
Each system has its own 2N UPS system, power distribution,
air conditioning, fi re detection/suppression, and monitoring.
In essence, if something happened to one system it would oper-
ate independently and not aff ect the other system. Even though
Miami is a remote site, the power distribution units (PDUs) are
monitored and controlled via the Internet and can be turned
on or off . Th e network monitoring system allows the user to
monitor the support systems 24/7 over the Internet.
“DCR is a system that has surpassed our expectations,” Bay-
ley concludes.
System elements
Within the self-contained data center system, base modules
serve as the air distribution system and are equipped with ad-
justable dampers, regulating the amount of airfl ow to each cabi-
net depending on the heat load of that cabinet. Th e top modules
serve as the air return plenum, keeping the airfl ow constant
and consistent. Th e system is also equipped with backup ex-
haust fans that engage should the cooling system fail.
Building power is supplied to one or two panels, for redun-
dancy, in the main cabinet unit. Power whips are then extend-
ed to equipment cabinets for connectivity to individual UPSs
and/or PDUs. Standalone UPSs are also an option, in which
case building power will also feed the standalone UPS and pow-
er whips would be installed from the UPS to the PDU. Redun-
dant PDUs are generally provided for each equipment cabinet
for powering of dual-powered servers and equipment.
Air conditioning units are available in diff erent sizes, from
20KW to 53KW, and are available as air-, water-, or glycol-
cooled. Like the air conditioning units, the UPS and fi re sup-
pression systems are sized for the number of cabinets installed.
Th e PDUs are available in monitored-only or monitored-and-
controlled versions for remote IP-based monitoring. Th e en-
vironmental monitoring system is also available for remote
IP-based monitoring.
In many cases a backup generator can be installed, providing
additional redundancy. Typically the generator, off ered in nat-
ural gas or diesel, is sized to the current total load (plus 20%)
of equipment that is necessary to remain in active status, and
can also be sized for future load requirements. Natural gas is
generally provided by the local service provider, giving a con-
tinuous supply as needed. Diesel tanks are sized and installed
according to the uptime requirements of the network and an-
cillary components. Diesel tanks can be installed above or be-
low grade.
Benefi ts of closed architecture
Th is self-contained data center solution incorporates a closed
architecture for cooling applications, rather than an open or
semi-open architecture.
An open architecture system is used in any room using
computer room air conditioning (CRAC) systems in a raised-
fl oor, overhead-free-blow, ducted, or in-row cooling for air
distribution.
Semi-open architecture systems are designed to separate the
hot air from the cold air using hot aisle or cold aisle contain-
ment. In either system, the entire room needs to be cooled and
the humidity controlled. In this type of architecture, a fi re-
suppression system must provide a suppressing agent sized to
fl ood the entire room.
Closed-architecture systems, such as Data Center in a
Row, contain and recirculate the airfl ow as the entire unit is
completely sealed. Th e closed architecture also allows
Within this setup are self-contained air-conditioning and fi re-suppres-
sion systems that have proven to be cost-effective for users of closed-
architecture data centers.
➤
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____________________
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 27
humidity levels to be readily controlled.
A closed-architecture system off ers several advantages. It is
energy effi cient, because cooling and humidity control are on-
ly required for the equipment within the cabinets. In open and
semi-open systems, temperature and humidity control are re-
quired for the entire room, resulting in greater power consump-
tion. With closed systems, airfl ow to each cabinet is adjustable
to meet load conditions of that cabinet. Applications such as
in-row cooling, ducted air distribution, and open raised fl oor
air distribution systems depend heavily on server fans to en-
sure cooling at the chip level, and may or may not provide suf-
fi cient airfl ow. Closed systems have backup ventilation; open
and semi-open systems may or may not.
Another advantage is economical fi re suppression. A closed-
architecture system can be installed anywhere in an open area
and still provide fi re suppression because the system is sealed.
In open and semi-open systems, fi re suppression is expensive
because the entire room must be covered. With open systems,
the front perforated cabinet doors leave the racks vulnerable to
water infi ltration from the sprinkler system. Most closed sys-
tems have sealed front glass doors and sealed solid back doors,
so the sprinkler system cannot penetrate the cabinets. Per
NFPA 13: Standard for the Installation of Sprinkler Systems,
if a room has a sprinkler system in which hot aisle contain-
ment systems greater than four feet deep exist, new sprinklers
must be added or existing sprinklers must be extended into
those hot aisle containment areas.
Closed system architectures allow for system expansion and
can be provided at a more predictable cost. Investment is based
on existing/immediate need. Th e DCR system provides the ca-
pability to add cabinets to existing row(s) as well as the addi-
tion of row(s) for future requirements.
Noise reduction is another benefi t. In open and semi-open
systems, the noise levels that servers and equipment create must
be addressed when considering room construction. Closed sys-
tems are quieter. Under most applications, the DCR noise level
is measured at 70 decibels at 3 feet, and 67 dB at 5 feet.
Finally, service and maintenance of a closed system are much
more bearable for service personnel compared to other archi-
tectures. With a closed system, service can be accomplished
from the front or back of the cabinet without losing airfl ow
through the racks and without exposing personnel to elevat-
ed heat conditions. Semi-open hot aisle containment systems
enclose the rear of the cabinet aisle, which in turn creates an
area where personnel work in environments with ambient tem-
peratures of 90 to 95 degrees Fahrenheit.
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_______________
infrastructure
28 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
www.cablinginstall.com
In early December a number of
cabling and other physical-layer
technology providers announced
partnerships with IBM (www.ibm.
com) through which they will sup-
ply products and systems for the company’s
Portable Modular Data Center (PMDC).
Many of the announcements coincided with
the PMDC being displayed at the 28th an-
nual Gartner Data Center Conference (www.
gartner.com).
Th e PMDC was introduced in June 2009
along with two other modular data center
designs from IBM—the Enterprise Modular
Data Center (EMDC) and the High Densi-
ty Zone (HDZ). According to IBM, the PM-
DC provides a fully functional data center in
a pod-like form with a complete physical in-
frastructure including power and cooling sys-
tems as well as remote monitoring. Th e PMDC
also has all the elements of the secure operat-
ing environments found in traditional raised-
fl oor data centers, IBM says, including protection from
fi re, smoke, humidity, condensation, and temperature
changes. Th e PMDC can be shipped and deployed into
any environment and can support multiple technology
vendors as well as multiple systems in an industry-stan-
dard rack environment.
IBM describes the EMDC as an enterprise-class data
center “shrink wrapped” and standardized from 5,000
square feet up to 20,000 square feet. Th e approach enables
users to bring new data centers online three to six months
sooner than a custom-designed version, IBM says.
Eye on energy
Th e HDZ is a modular system that provides incremen-
tal cooling and power capability in existing data cen-
ters that are out of capacity. According to IBM, the HDZ
can be swapped into an existing data center without dis-
rupting current operations and can provide up to 35 per-
cent cost savings compared to retrofi tting an existing
data center.
“We’ve engaged with thousands of businesses, govern-
ments, and educational institutions around the world to
help them address critical energy challenges in their da-
ta centers,” said Mike Daniels, senior vice president and
group executive of IBM’s Global Technology Services
at the time of the systems’ introduction. “We’re unveil-
ing the most advanced green technologies and services
to help clients become much more effi cient in how they
consume and pay for energy, not only in their data cen-
ters, but across all of their operations.”
Th e introduction of these three data center systems was
the second phase of what IBM dubbed Project Big Green,
which it launched in 2007. At the time IBM committed
$1 billion to deliver technologies it said would help
IBM’s Portable Modular Data Center is a fully functioning data center “pod”
that can be shipped and installed into any environment.
➤
Infrastructure suppliers teamwith IBM on modular data center
Introduced in mid-2009, IBM’s Portable
Modular Data Center can house recognized
brand-name layer-one systems.
PATRICK MCLAUGHLIN is chief editor of Cabling Installation &
Maintenance.
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___
____
_________
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 29
users dramatically increase levels of energy effi ciency in data
centers. Th is second phase of Project Big Green follows that
objective by making data centers more fl exible in matching
information technology needs to capital and operating costs,
IBM says.
Infrastructure suppliers
Anixter (www.anixter.com), Eaton Corporation (www.eaton.
com), Emerson Network Power (www.emerson.com), Panduit
(www.panduit.com), and Siemon (www.siemon.com) all an-
nounced partnerships involving IBM’s PMDC in December.
In making its announcement, Anixter emphasized that as
the need for data centers expands around the world, the call
for temporary and mobile solutions such as the PMDC is in-
creasing. “We have seen a growing need for this type of solu-
tion,” commented Andy Jimenez, Anixter’s vice president of
technology for enterprise cabling solutions. “By equipping the
PMDC with the cabling infrastructure solutions, end users re-
ceive a self-contained data center solution that can quickly de-
liver functionality and capacity when and where it is needed.”
Users of the PMDC may fi nd Eaton’s and/or Emerson Net-
work Power’s power-distribution, power-quality, and cooling
products within the system. Eaton stated its 550 kVA uninter-
ruptible power supply (UPS) has already been used in PMDC
containers installed at an IBM data center in Europe.
“Power usage represents a signifi cant cost when operating
a facility,” said Jerry Whitaker, president, electrical sector –
Americas for Eaton. “Th e ability to plan, build, and maintain
a highly energy effi cient data center is essential to meet busi-
ness objectives. Eaton has a long history of working with IT
managers and CIOs to achieve cost savings and execute sus-
tainable strategies.”
Emerson Network Power’s Liebert and Knurr brand prod-
ucts can be integrated into the PMDC, the manufacturer says.
“Emerson Network Power is excited about this opportunity to
further extend our relationship with IBM and provide effi cient
and fl exible options for customers to meet business demand
and IT growth while continuing to deliver high availability,”
commented Fred Stack, vice president of marketing for Lie-
bert brand cooling products. “Off erings such as IBM’s por-
table modular data center will help data center designers and
managers scale an infrastructure quickly, reduce capital ex-
penses, and improve effi ciency while upholding high availabil-
ity and performance.”
According to Panduit, the company’s line of high speed da-
ta transport solutions supports the network infrastructure
over the data center life cycle, and its QuickNet preterminat-
ed 10-Gbit-capable solutions are a good fi t for the unique in-
frastructure requirements of containerized solutions like the
PMDC. Panduit emphasizes that its off erings are preterminat-
ed and high-density, providing up to 96 fi ber and 48 copper
connections in one rack space.
“Panduit’s Unifi ed Physical Infrastructure approach maps the
physical infrastructure to the logical network, enabling cus-
tomers to conserve valuable data center real estate while man-
aging extreme heat loads and optimizing power and cooling
effi ciencies,” stated Jack Tison, Panduit’s vice president of tech-
nology. “Working on the IBM PMDC initiative allows us to
apply our high-speed data transport, integrated cabinet sys-
tems, soft ware, and harsh-environment expertise to optimize
the IBM platform and promote scalable, sustainable data cen-
ter design practices for these critical applications.”
Category 6A and 7A twisted-pair copper cabling systems
as well as plug-and-play fi ber-optic cabling systems and the
MapIT G2 Infrastructure Management System from Siemon
are also now available as part of the PMDC. Siemon announced
that according to its supplier agreement with IBM, PMDCs can
be delivered with Siemon cabling already installed, including
those systems mentioned above. Additionally, the preinstalled
infrastructure systems may include the IBM-branded FTS I-
Line. Launched as part of IBM’s Fiber Transport System (FTS),
the IBM FTS I-Line is a specialized off ering of high-perfor-
mance plug-and-play preterminated fi ber cabling developed
under Siemon’s quality guidelines.
Steve Sams, IBM’s vice president of global site and facilities
services, served as the company’s spokesman when these sup-
plier agreements were announced and off ered comments on
many of the agreements. “IBM’s PMDC is part of our strategy
to deliver a cost-eff ective and fl exible family of modular data
center solutions to businesses facing signifi cant capital and op-
erational costs,” Sams said, then stated separately, “Having a
reliable, standards-based infrastructure developed for the con-
tainer is essential in delivering a high-value modular compo-
nent to our customers.”
Within the PMDC reside cabling products and systems like these.
Recently several cabling suppliers announced partnerships with IBM to
provide products for the PMDC.
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___
Compiled by Patrick McLaughlin
30 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
Analysts: WiMAX market rebounding quicklyTwo market research and analyst fi rms agree that the global
market for worldwide interoperability for microwave access
(WiMAX) technology is rebounding rapidly. In early Decem-
ber fi gures from ABI Research (www.abiresearch.com), focus-
ing on mobile WiMAX, indicated by the end of that month
(and the 2009 calendar year), global subscribership to mobile
WiMAX would approach 2 million.
“Over the last several years mobile WiMAX has moved
through standardization, productization, and interoperabil-
ity testing and certifi cation,” the company explained. “Larg-
er-scale network deployments are fi nally becoming a reality.
Clearwire in the United States has already declared 173,000 sub-
scribers; Yota in Russia has been growing at a decent rate, reach-
ing 100,000 subscribers in August and 200,000 in October; and
PacketOne in Malaysia has reached 130,000 subscribers.”
Also in December, Infonetics Research (www.infonetics.com)
released a third-quarter 2009 market share and forecast report
on WiMAX equipment, devices, and subscribers, including
fi xed and mobile.
Among the highlights of Infonetics’ quarterly report are the
following.
• Th e worldwide WiMAX equipment and device market
topped $290 million in the quarter, which was up 11 per-
cent sequentially.
• Based on a huge uptick in 802.16e device revenue, Motor-
ola more than doubled its worldwide equipment and de-
vice revenue market share for WiMAX over the second
and third quarters.
• Th e Europe, Middle East, and Africa region, as well as Asia-
Pacifi c are the hotbeds of WiMAX activity, although licens-
ing delays are hampering progress in India.
• Th e researcher forecasts the equipment and device mar-
ket will hit $4.97 billion by 2013, driven by developing
countries.
• Total number of WiMAX subscribers, fi xed and mobile, was
expected to reach 3.9 million worldwide by year-end 2009.
Richard Webb, directing analyst for WiMAX at Infonetics,
stated, “Th e WiMAX equipment and device market is on the
upswing, posting its second quarterly double-digit percent-
age increase in a row in the third quarter, driven by revenue
growth in all regions. We expect steady growth in the market
over the next four quarters as the WiMAX ecosystem contin-
ues to take shape and more devices hit the market, driving
adoption through the recession.”
ABI’s practice director Philip Solis explains there can be sig-
nifi cant diff erences among providers in diff erent geographic
regions. “Mobile WiMAX service providers around the world
fi nd themselves in very diff erent situations,” he said. Some are
mainly focused on fi xed services for homes and businesses,
while others are jumping feet fi rst into mobile WiMAX, of-
fering a variety of external modems, laptops, netbooks, and
even handsets tied into HD multimedia services, as with Yota
in Russia. Some have little fi xed or mobile broadband compe-
tition, while others are competing directly against fi xed and
mobile broadband services.
“Some, such as Japan’s UQ Communications, are behind their
buildout schedules and subscriber expectations, while others
such as Clearwire are increasing the pace of their deployments
because of more-than-adequate funding. Still others such as
Yota in Russia are exceeding all expectations. Some are remain-
ing local, while others such as Clearwire and Yota are building
networks in more than one country.”
Earlier research from Infonetics spelled out some of the driv-
ers for WiMAX adoption. Th e report “WiMAX Equipment and
Subscribers in Key Markets” was issued in summer 2009. At
that time Webb explained, “India, because of its scale, and the
U.S., because of Clearwire’s profi le, are the two most promi-
nent markets for WiMAX, and both are absolutely critical to
its fortunes.”
Th at study concluded that Russia is the proverbial perfect
storm for WiMAX with a challenging geography, dispersed
population, pent-up demand for broadband and voice servic-
es, and a population able to pay for those services. It also point-
ed to Brazil as “potentially one of the world’s most dynamic
WiMAX markets, with a very mobile-oriented populace.” Ac-
cording to the study, WiMAX has the opportunity to become
the primary broadband network in Brazil.
Also, many Central and Eastern European countries had
WiMAX deployments underway and more than 20 operators
off ered Voice over Internet Protocol-over-WiMAX service,
which Infonetics pointed to as a major driver of adoption.
ABI concludes its analysis with a look at a potential threat to
WiMAX. “Th e LTE ecosystem will eventually be vastly larger
than the mobile WiMAX ecosystem, but just as LTE deploy-
ments start picking up in 2011 and 2012, some 802.16e service
providers will begin upgrading their networks to 802.16m.”
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www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 33
Compiled by Patrick McLaughlin New Products
Second-generation 10GBase-T switchExtreme Networks recently began ship-
ping what it dubs as a greener, more en-
ergy-effi cient version of its Summit X650
10GBase-T switch, a top-of-rack Ether-
net switch designed for data center, cloud
computing, and hosted environments.
According to Extreme, the Summit X650-
24t consumes 200W less power during
operation than the company’s fi rst-gen-
eration 10GBase-T switch. Th e switch is
complemented with Intel’s lower-pow-
er 10GBase-T adapter that provides
state-of-the-art interfaces to high-per-
formance servers, Extreme adds. “Pow-
er savings is critical to the data center
where space, heat, and bandwidth have
to be optimized,” said Harpeet Chadha,
senior director of product management
for Extreme. “Delivery of the latest gen-
eration Summit X650 off ers excellent en-
ergy effi ciency and provides customers
with cost-eff ective 10-GbE options for
standard RJ-45 copper interfaces.”
EXTREME NETWORKS
www.extremenetworks.com
Handheld tester for cable, PoE, network analysisPsiber Data Systems recently launched
the LanExpert, which the company de-
scribes as a handheld network analyzer
featuring protocol analysis, packet cap-
ture, traffi c generation, cable testing, and
IPv4/IPv6 support. Th e LanExpert uses
a color touch screen interface to access a
suite of test and analysis functions. Th e
tester’s inline mode allows users to non-
intrusively monitor 10/100/1000Base-T
network traffi c to identify protocols, port
usage, VoIP statistics, and network uti-
lization. Psiber says the LanExpert can
capture and store up to 10,000 packets
with user-defi ned fi lters for detailed anal-
ysis in the fi eld or downloaded over the
network or to a USB fl ash drive. Using
either RJ-45 port, tests including ping,
link, trace route, DHCP, and discovery
are used to identify network problems.
Th e tester can generate up to 100 per-
cent traffi c loading with control of pack-
et rate and size to demonstrate network
performance at various traffi c levels. Al-
so, a stress test that generates traffi c and
measures performance metrics, in accor-
dance with RFC 2544, is also provided.
Stress tests can be conducted using two
independent ports on a single unit, or
used with a second unit located remotely
on a network. Power over Ethernet tests
include voltage and inline current mea-
surement to determine the actual power
used by a powered device. Th e LanExpert
also tests cables for shorts, opens, split
pairs, reversed pairs, and cable length. It
can generate tone for cable tracing. Th e
tester lists for US$1,895.
PSIBER DATA SYSTEMS
www.psiber.com
Cordless slitter for utility-innerduct entryTh e Cordless Power Duct Slitter from Gen-
eral Machine Products (GMP) allows fi eld
technicians a less time-consuming and la-
bor-intensive way to cut utility-grade in-
nerduct, its manufacturer says. Th e tool
features a battery-powered blade that of-
fers a mechanized method for trimming
and slitting innerduct utility conduit, as
an alternative to the brute-force method
typically required when cutting innerduct
by hand. Th e slitter features a blade diam-
eter of 3-3/8 inches (85 mm) and is adjust-
able to cut innerduct of 1 to 2 inches (25.4
to 50.8 mm) in diameter. GMP says the
slitter’s compact design is easily maneu-
verable and fi ts comfortably in a worker’s
hand. Th e tool is 12-3/8 inches (313 mm)
in length and weighs 6 pounds (2.72 kg).
Th e Cordless Power Duct Slitter is con-
structed with a multi-directional cutting
guide to assist with cutting innerduct lon-
gitudinally and also around its circumfer-
ence. It also features a blade guard and a
safety stop built into the switch. Th e tool
comes with a rechargeable 9.6-volt battery
and a battery charger. Th e charger weighs
1.19 pounds (0.54 kg) and charges to full
capacity in one hour.
GENERAL MACHINE PRODUCTS
www.gmptools.com
Zero-U patching systemsTh e end-of-row Zero-U patching and ca-
ble-management options for Siemon’s
VersaPOD Data Center Cabinet Solution
mount between the VersaPOD cabinet’s
corner posts and side panels, allowing
four standard 1U patch panels or fi ber
enclosures to be mounted vertically. Pre-
viously available as a copper and fi ber
patching solution that leveraged the ver-
tical space between two bayed VersaPOD
cabinets, this new product set brings the
same high-density, zero-U capabilities to
end-of-row and standalone cabinets. Th e
panels may be mounted on both ends
and in the front and rear of the cabinet,
providing an additional 16U of mount-
ing space to a standalone cabinet with-
out consuming horizontal mounting
space. Th e manufacturer points out that
combining the solution’s 24U or zero-U
vertical patching space between bayed
cabinets, with the new end-of-row capa-
bilities, frees up 40 horizontal mounting
spaces for every two cabinets. Ultimate-
ly, Siemon says, fewer cabinets are need-
ed, saving cabinet cost and fl oor space.
Additionally, the cable management and
patching are located in dedicated zero-
U spaces that eliminate cable obstruc-
tions in equipment-mounting areas for
improved cold-aisle, hot-aisle airfl ow
and thermal management. Zero-U ver-
tical patching areas can also be used to
mount power distribution units to ser-
vice the equipment mounted in the adja-
cent 45U of horizontal mounting space.
Th e VersaPOD system’s end-of-row op-
tions also include new thermal-man-
agement blanking panels, which seal
the air gap between the cabinet corner
posts and side panels, thereby enhanc-
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For more information:www.fiberinstrumentsales.com/trace-analysis
1.800.5000.FIS161 Clear Road • Oriskany, NY 13424Tel: 315.736.2206 • Fax: 315.736.2285info@fiberinstrumentsales.comwww.fiberinstrumentsales.com
We are able to service OTDRs from most manufacturers, including:
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ing the systems’ hot-aisle/cold-aisle iso-
lation capabilities.
SIEMON
www.siemon.com
Handheld tester for carrier-grade EthernetTh e ETS-1000 Ethernet Analyzer from
EXFO Electro-Optical Engineering al-
lows turnup and installation of carrier-
grade Ethernet services over metropolitan
networks. Th e tester’s feature set deliv-
ers specifi c functionality and ease-of-
use required by fi eld
technicians to meet
increasingly demand-
ing Ethernet network
testing and compli-
ance measurements.
Its manufacturer fur-
ther states the ETS-
1000 is a compact and
feature-rich 10-Mbit-
to-1-Gbit Ethernet test
unit, supporting two
independent test ports. Technicians can
transmit up to layer-4 traffi c, with fully
confi gurable virtual local area networks,
multiprotocol label switching, and quality-
of-service parameters. Th e tester supports
all necessary Ethernet/IP fi eld testing ca-
pabilities including RFC 2544, bit-error
rate, packet jitter, and multistream gener-
ation and analysis. Also introduced at the
same time is the ETS-1000L, a dedicated
handheld Ethernet loopback device that
EXFO says supports simple user confi g-
uration for full wire-speed testing, from
layers 1 through 4.
EXFO ELECTRO-OPTICAL ENGINEERING
www.exfo.com
H.264 IP camerasOptelecom-NKF recently announced the
release of the H.264 Siqura HD6x PTZ IP
camera series. Th e high-speed dome cam-
era line comprises three pan/tilt/zoom
(PTZ) IP cameras: the indoor HD60 as
well as the outdoor HD62 and HD66
WDR. All of the HD6x cameras support
open streaming architecture (OSA) for
integration with video management sys-
tems. Th e quad-streaming HD6x camer-
as support H.264 streaming in addition
to MPEG-4 and MJPEG dual streaming.
Th is fl exibility in compression standards
makes it easy for HD6x series cameras to
off er the best-quality video while stream-
lining network performance, Optelecom
says. Th e HD6x cameras can move to pre-
defi ned preset positions at speeds up to
400-degrees per second. With the HD6x
cameras, PTZ coordinate positions can be
queried or set through the OSA applica-
tion programming interface. Th e camer-
as off er 26x or 35x autofocus zoom lenses
with 12x digital zoom. Th e HD6x series al-
so comes with a Web-based user interface,
allowing users to confi gure them or view
video streams from a PC or handheld de-
vices. Standard features include day/night
and backlight compensation that can be
applied manually or automatically when
lighting conditions require. All HD66
WDR cameras have a built-in image sta-
bilizer to prevent vibrations from disrupt-
ing a camera view or footage.
OPTELECOM-NKF
www.optelecom-nkf.com
10-Gig switch for storage, HPCFujitsu Frontech North America Inc. re-
cently introduced its XG2600 10-Gbit
Ethernet switch, the newest addition to
the company’s family of XG Layer 2 Eth-
ernet networking switching platforms.
Th e 26-port XG2600 uses SFP+ optical
modules and is designed for use with
SFP+ twinax copper cables. According
to the company, the XG2600 may reduce
overall networking costs while ensuring
ultra low latency and signifi cantly re-
duced power consumption. Th e company
claims the switch can reduce power us-
age more than 30 percent to less than fi ve
watts per port. Fujitsu says its XG family
of high-speed layer 2 switching solutions
is designed to off er superior throughput,
ultra low latency, fl exible interfaces and
extremely low failure rates in a compact
form factor.
FUJITSU FRONTECH NORTH AMERICA
www.fujitsufrontechna.com
bulletin boards
CLASSIFIED
1-800-622-2537
www.fi bercables.com
34 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
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__________
ho
t p
rod
uct
s
www.cablinginstall.com Cabling Installation & Maintenance ■ January 2010 ■ 35
The index of Advertisers is published as a service.
The publisher does not assume any liability for errors or omissions.
INDEX OF ADVERTISERS
Anixter Inc 5
Arlington Industries
Langford Group 20
Bel Stewart Connector 12
Belden C3
Berk-Tek 10
BTR Netcom 27
Byte Brothers 21
Chatsworth Products 1
Corning Cable Systems C2
Corning Inc 19
Datacomm for Business 35
Diamond Ground Products Inc 35
Fiber Instrument Sales 34
Fibercables.com 34
General Cable Company C4
Greenlee Textron 9
JDS Uniphase Corporation 15
Leviton Network Solutions 16, 32
Live Wire and Cable 34
Middle Atlantic Products Inc 26
Oberon Inc 35
OFS Optics 8
Optical Cable Corp 2
Server Technology 14
Siemon Company 6
Superior Essex 25
Times Microwave Systems 22
Transition Networks 31
Trilithic Inc 13
COMPANY PAGE
www.textender.com800-432-2638
Extend T1/E1 over:
Data Comm for Business, Inc.
WireUp to Several Miles
of 2-pair Wire
FiberMiles of Fiber
EthernetIP/Ethernet
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________________________________
_____________
36 ■ January 2010 ■ Cabling Installation & Maintenance www.cablinginstall.com
Recently it has been a popu-
lar notion that fi ber cabling
would overtake copper ca-
bling or at least make an inroad in-
to the structured cabling systems
market. At one point in time, fi ber-
to-the-desk was looked upon as the
Holy Grail for fi ber cabling. Even we
had a preconceived idea that fi ber
cabling would make an inroad for
displacing copper cabling systems.
In the early days of the struc-
tured cabling systems market, sup-
port of 1-Mbit/sec transmission was
required. Early unshielded twisted-
pair (UTP) copper cabling satisfi ed
this requirement. As speed increased
to 10 then 100 Mbits/sec, then to 1
Gbit/sec, UTP copper cabling kept
pace with newer designs.
Currently at 10 Gbits/sec, the
push is on to have UTP copper ca-
bling support this throughput over
100 meters. Many cable manufactur-
ers claim to have Category 6A UTP
cables that satisfy the TIA require-
ments for supporting 10-Gbit/sec
transmission over 100 meters. Be-
yond this looms 40 and 100 Gbits/
sec, in which the TIA standards are
expected to evolve with fi ber ca-
bling as the primary media for high-
er speeds.
It appears as if UTP copper ca-
bling has fi nally succumbed to fi ber
cabling. It is very easy to draw the
conclusion that fi ber cabling will be
thrust into the forefront at these ul-
tra-high speeds. We concur with this
and, in addition, still have our reser-
vations about UTP copper cabling’s
support of 10-Gbit/sec transmission
over extended distances—as tweak-
ing of compensation electronics and
increased complexities in testing
may forfeit its position to fi ber ca-
bling, especially for futureproofi ng
the cabling installation.
Th e fi ber-versus-copper battle for
structured cabling systems is on.
In our recent analysis of this bat-
tle we have come to the conclusion
that copper cabling will continue to
dominate in the structured cabling
systems market. We undertook an
extensive analysis, examining and
forecasting the use of fi ber and cop-
per cabling in the major structured
cabling systems applications, such
as local area networks, data centers,
Voice over Internet Protocol (VoIP),
and others.
Our underlying fi nding was that
copper cabling, which accounted for
76.8 percent of the total market in
2009, would account for 79.1 percent
of the total market in 2014. Whereas
fi ber cabling will continue to make
inroads into the data center cabling
market, copper cabling will also be
used extensively in future VoIP sys-
tems. Other factors contribute to our
overall analysis, but these are two of
the primary drivers for the future
structured cabling systems market.
Th e diff erence lies in the limited
distances found in data centers re-
quiring fi ber cable lengths, while
the VoIP systems will require long
distance, separate, horizontal ca-
bling between telecommunications
rooms and the VoIP telephones to
maintain voice quality. Th e VoIP
cabling application is reminiscent
of copper cable’s growth in the early
LAN market, when copper cabling
was strung between the telecommu-
nications rooms and each desktop
computer.
Our analysis indicates that fi ber
cabling will increasingly be used in
data center applications and remain
the backbone mainstay for the en-
terprise’s core network. At the same
time, copper cabling will continue
to be the dominant cabling used in
LAN cabling applications.
More importantly, in the future,
VoIP implementation will rely on
an abundance of copper cabling.
Th e imbalance of the limited dis-
tance requirements in data center fi -
ber applications is more than off set
by the longer distance requirements
for VoIP copper cabling, resulting in
copper’s continued dominance of
the market.
Editor’s Note: Th is article sum-
marizes research fi ndings in FTM
Consulting’s study “Fiber vs. Cop-
per: Battle for the Cabling Systems
Market.”
Copper cabling to remain structured cabling market leader
Frank Murawski is president of FTM
Consulting Inc. (www.ftmconsultinginc.com).
We have reservations about UTP’s support
of 10-Gbit/sec over extended distances.
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(800) 424-5666www.generalcable.com
Share your ideas. We’re listening: Datacom@GeneralCable.com
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