ENTERPRISE STRUCTURED CABLING: Gearing Up To Convergence

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Voice&Data Bureau
New Update

Enterprises
across all verticals have witnessed a tremendous explosion in the data usage on
their network. This has made them realize the importance of having a robust
cabling infrastructure to support the increased bandwidth usage. Given the pace
of at which the enterprise bandwidth requirements are increasing, the existing
LAN cabling system stands the risks of becoming inefficient in no time.

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Thanks to some
innovative solutions by structured cabling vendors, enterprises are in a
position to take advantage and upgrade their network for better connectivity at
an affordable cost.

ISSUES AND CHALLENGES

Some of the common problems that occur during implementation include pair
twists not being maintained in twisted pair cables especially at the modular
plug, too much of the jacket removed from the UTP cable etc. Cable routing is
another common factor contributing to faults. One must ensure that structured
cabling is not laid next to power or telecom lines and does not have too many
bends for this can affect the number of twists in the UTP cable. Extensive
cabling as a result of large and unstructured computer networks can also cause
problems. Also, one should ensure that one has proper documentation of the
entire structured cabling layout. 

EXPERTS PANEL

Milind Tamhane, VP-
Passive Products, D-Link India

Nagendra DS, director-sales, ADC KRONE India

Prasanna Kumar, director, Systimax

Rajesh Kumar, country manager, Siemon

Ranajoy Punja, VP-marketing, Cisco Systems India

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Within IT, the
adoption of IP as a ubiquitous platform presents itself with an opportunity to
converge all types of media and mediums of communications viz voice, data, and
video.  Applications such as VoIP,
IP-based videoconferencing, digital audio and video are bandwidth intensive and
becoming a reality today. Since information plays a vital role and therefore a
successful delivery of information, inter and intra enterprises across world are
an absolute necessity today. And to fulfill that there is a need for a reliable,
scalable, and high-performance structured cabling solution. IT networks in an
organization is being viewed as one of the important assets of the company. The
growth of the organization is dynamic. To add to this, technology is changing
very fast with the speed of computing increasing day by day. The challenges
faced today in a network environment is to do with the technology vis-a-vis ROI
SAN & NAS are turning to become high-end niche applications especially in
BFSI sector. This has driven the data center market, with many global vendors
viewing India as a major base for growth. Unlike work area cabling, which is
fast turning into a commodity, data center cabling needs to be more futuristic
with a high level of redundancy built into the cabling and other general
infrastructure. The product reliability, installation skills, and performance
headroom needs to be of a high order and all of these needs to fall in place at
an affordable cost.

Buying
Tips

Look
at the layout first: Enterprises need to keep the physical layout and
structure in view when doing the procurement. An implementation plan can
typically have these components-vertical cabling, horizontal cabling,
the backbone media, and user points.

When
enterprise locations are spread over two or more nearby buildings, it
calls for external cabling. Internal cabling takes care of intra-building
needs, and can be across various floors (vertical cabling) or floor-wise
(horizontal cabling).

Map
requirements to technologies: Costs can be optimized, without compromising
on the performance, by opting for different levels and types of
technologies.

For
example, it's better to install a fiber-optic backbone to interconnect
the buildings. Additionally, there can be some coupling with multi-paired
copper telephone cables for the connection of buildings with the public
telephone network and the provision of internal lines/services between
buildings.

Internal
cabling needs special attention: Internal cabling should be designed in
such a way that it's able to meet present as well as future needs. This
is because the internal cabling is much more complex than external cabling
and an improper plan can make a future expansion a big nightmare. In other
words, the infrastructure should be fully extendable, especially in terms
of technologies.

Ensure
Robustness: Robustness of a structured cabling solution should be high on
the buyer's priority. That comes from the solution's ability to
facilitate smooth and uninterrupted heterogeneous traffic while ensuring
high network uptime.

Look
at fiber's no-interference advantage: Fiber is completely future proof.
It remains unaffected by EMI and RFI effects. Two core tight-jacketed
cables are normally used for these applications. Mostly multimode 62.5u
fiber goes in multi-storied buildings as a vertical backbone and 50u laser
graded or single-mode fiber goes as a horizontal backbone in the big
campus-wide projects.

Make
it future-proof: In years to come, since the gigabit reaches to the
desktop, the necessity of 10-gigabit backbones will be a must thing for
the bandwidth-hungry applications. With 10-gigabit backbones installed,
companies will have the capability to begin providing gigabit Ethernet
services to workstations and, eventually, to the desktop in order to
support applications such as streaming video, high-end graphics etc. As
the speed and bandwidth of the network increases the distance that copper
cable can support decreases. If looking at a very long-term plan, it will
be a good option to use single-mode fiber since it will be a much superior
solution at a relatively much lower cost. Real-time cabling management
could be very effective in the premises networking where different groups
use the same backbones and share the same resources. It's very essential
to identify the various groups and provide them the set up and bandwidth
accordingly.

For
major projects, sophisticated gigabit solutions are also available. Large
enterprises may find such solutions more suitable. It is also important to
note that cabling infrastructure is generally considered a 10 year
investment as opposed to two or three years for electronics.

While Cat-6 is
becoming a de-facto standard for all medium and large networks, Cat-6A the 10
Gig cabling network is being widely accepted in large sized networks. With 10GE
gaining acceptance the question is whether fiber or Copper? The cost of
electronics involved in a copper based solution works out to be cheaper by more
than five times over a fiber-based solution; hence, the Cat-6A is gaining
momentum.

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Before evaluating a structured
cabling solution for deployment, the CIO or the CTO should know their
network and the future requirements well enough

Managing large,
multi-location networks are being viewed as a challenge as well.

Today, structured
cabling is supposed to handle traditional voice and data. With IP being a
reality, the bandwidth demands are increasing. Added to the cabling network are
the other applications such as fire alarm, security, HVAC and building
automation systems. These applications in turn demand a share of bandwidth, so
with these applications the enterprise needs to install a robust network that is
futuristic and able to support future technologies as well. ERP, Sarbannes Oxley
being integrated in the enterprise throws an additional challenge.

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THE WAY OUT

Education is the first step to marketing. It is the collective
responsibility of all vendors to spend due resources on educating their target
audience on all important issues pertaining to structured cabling such that they
can make informed choices. Prevention is better than cure. Buying decisions
should be made after due deliberations.

Case
Study: Unisys

Implementer:
Unisys                                                   Â
Vendor: Systimax

At
the heart of its installation is the innovative SYSTIMAX 110 VisiPatch
patching hardware system. The compact, wall mounted VisiPatch panels make
valuable space savings and their reverse patch cord connectors avoid the
patch cord spaghetti that clutters the front of traditional panels. This
clean, neat layout saves time when re-patching and avoids human errors by
making connector block labeling more easily visible. To connect VisiPatch
panels in the main computer room on the second floor with similar panels
in satellite distribution frames on other floors, Unisys chose SYSTIMAX
OptiSPEED fiber cabling.

A
pair of six-core indoor multimode 62.5 micron OptiSPEED cables provide the
main and alternative backbone connections for the new network. From the
satellite distribution frames to workstations, links are made via SYSTIMAX
GigaSPEED XL copper cabling. This solution can operate reliably at speeds
up to 1 Gb/s over distances of 100 meters. Its quality design and
manufacture ensure that the GigaSPEED XL Solution can comfortably exceed
all the specifications of the Category 6 cabling standard, even under
adverse conditions. Unisys is a worldwide information technology services
and solutions company offering services to drive clients' business
transformation. Across more than 100 countries, the company provides
consulting, systems integration and outsourcing facilities together with
IT infrastructure and server technology.

The
Unisys Global Services data center in Bangalore, serves businesses
worldwide in sectors that include financial services, communications,
public service, transport, commerce, and media. When the company decided
to install a new, 1200-outlet data network in the 10-floor Bangalore
facility, it wanted to build this on the best available cabling
infrastructure. To do this it chose solutions from the SYSTIMAX®
Solutions portfolio.

SYSTIMAX
Prestige BusinessPartner, Network Solutions, is installing the new cabling
infrastructure. Based in Bangalore, Network Solutions employs over 1,000
people worldwide. It's work at the Unisys data center, located on
Bangalore's Purva Premier Residency Road, was completed in two phases
over a period of six months. The cabling will serve systems including
access control as well as office and data center applications.


                                                                                                                                             Â
Source: Systimax

Before evaluating a
structured cabling solution for deployment, the CIO or the CTO should know his
network well enough. Besides, he should have a fair idea of the requirements
that are going to emerge in the future. Having understood the load that his
network may have to face, say 10 years from now, he should decide on a solution
that best meets his requirements. At the same time, this futuristic solution
(supposed to be the latest in terms of structured cabling standards/categories
available) that he chooses should not cost a lot in terms of purchase,
installation and maintenance. The TCO, which is sum of the cost of acquisition
and recurring costs, should be low at all times.

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Wired or Wireless?

Advantages:

Wired: Huge bandwidth, dedicated bandwidth, reliable connectivity, secure,
cost effective

Wireless: Mobility, immediate connectivity

Disadvantages:

Wired: Immobile, cumbersome connectivity

Wireless: Limited bandwidth, shared bandwidth, security, high cost

“There is no harm in
having bandwidth that's more than required for a couple of years before the
network starts experiencing the real load it is scaled for”. Secondly,
enterprises should compare the solutions offered by different vendors
feature-by-feature. This will help understand what fits his scenario the best
and where all can he protect the existing investments. A close look at the track
record of the system integrators or certified installers empanelled with the
structured cabling vendor is also important for the solution may be good in
terms of features but the way it has been deployed also matters. What's
unfortunate is that the awareness levels amidst users and decision-making
community is low enough. They are not aware of the latest standards and
ratifications. It is crucial to ascertain issues such as system performance,
redundancy, diversity, modularity, and warranty and after-sales service before
deploying any structured cabling solution.

There is no harm in having
bandwidth that's more than required for a couple of years before the
network starts experiencing the real load it
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New networks, new
ways. Network architecture is evolving based on new complex environment and
future proofing demands. Within a converged network, unless the expectations of
cost, speed, performance and reliability are met, an optimum return on
investment (RoI) cannot be realized. While the design and engineering of the
product contributes to cost and speed, it is the customer experience that
defines performance and reliability. It is therefore essential that solutions be
designed to deliver the desired quality of service (QoS) consistently. 

Power-over-Ethernet-Growth
Drivers

Power-over-Ethernet
technology (PoE) allows IP telephones, wireless LAN access points, webcams,
and many other appliances to receive power as well as data over Ethernet
protocol, using the existing LAN cabling.

Also,
with the power-over-Ethernet (PoE) technology coming into play, wireless
access points and other such devices will need structured cabling as the
underlying infrastructure.

The
technology works by injecting DC-converted power over the spare pairs of
Cat 5 and above cables. Various WLAN equipment and end-user devices
including laptops and VoIP phones can then be plugged into the cable to
draw DC power. PoE, as one can see, converges not just telephony and
Internet, but also power-on a single medium, copper. It also addresses the
problem of an IP call getting disconnected in the event of a general power
failure.

The
growth in PoE is directly linked to the rapid growth in IP-based
applications (telephony and video) as also wireless LAN protocols. The
case for providing PoE through the structured cabling system is based on
the fact that provision of power should be done in a transparent
(non-interfering) manner. The passive solution lends itself to such a
transparent provision as long as power is injected over the non-data
carrying pairs in the UTP cabling, and as long as the device used for
injecting power does not have the potential to interfere with sensitive
switches and patch panels.

IEEE
802.3af defines requirements for PoE. This currently calls for a
consistent provision of 15.4 watts of power to all IEEE-compliant powered
devices (PDs). PDs listed include IP phones, IP cameras, WLAN access
points, access control devices, etc. The freezing of the 802.3af standard
will allow an explosion of PoE devices and installations. The PoE standard
has the potential to change the way IT deploys big applications. For many
IT managers, starting now to plan for PoE will pay dividends later.

While
evaluating options for PoE, network managers should keep the following
considerations in mind:

  • Does
    the PoE device have the potential to create interference or is it
    transparent?

  • Does
    it have modularity and hot-swappable features (think of a situation
    wherein multiple users have to be switched of because one module
    conked off!)?

  • Does
    it have a standards compliant (IEEE 802.3af) power management system
    and a 'handshake' protocol? The latter ensures that PoE is
    supplied only when a suitable device is available at the other end to
    receive this and function. Device detection prior to activating power
    prevents the device damage.

  • Is
    the PoE solution manufactured in-house by the structured cabling
    vendor, versus an outsourced module with the accompanying issues of
    support?

A resilient cabling
that can be designed taking into account the various aspects of the enterprise.
It is important to understand the needs in terms of the applications that will
be deployed. The growth rate, the churn rate, the future plans, the occupancy
time frame of the building has to be factored, while designing a network. It is
always good to install a cabling network that is latest in technology as
re-cabling involves huge cost and inconveniences associated with relocating the
staff. It is always good to install a backbone that can be on fiber and copper
that can cater to 10 Gigabit. Design the data center that can also be on 10 Gig
copper and fiber. With intelligent cabling you can manage the network and can
also manage the IT asset. The intelligent cabling can also be used for security
purpose wherein intrusion in a network can be easily identified.

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DEPLOYMENT TRENDS

Cabling systems are increasingly getting intelligent especially the ones
deployed in the enterprise space. These systems provide for real-time management
of the physical layer, which enables immediate troubleshooting of problems, if
any, besides optimum utilization and efficiency. The intelligent structured
cabling is able to track IP-based devices such that the network manager can
access, control, and manage them from one central location. This is more
critical considering the today's distributed computing environments and the
acute need to troubleshoot them remotely. There is a scarcity of network
management staff and, therefore, remote access and management of devices is
logical. For this, use of an intelligent structured cabling system is a must.
Besides this, there is a growing trend towards interoperability and providing
higher security to the user as well. 

Build
Networks with a Vision

As
IT and network managers would know very well, improving network
performance is simply a matter of moving the bottlenecks around. Not
always, a network's bottleneck will be inadequate bandwidth. It may be
underpowered servers, or out of date workstations.

It's
no secret that network managers are under constant pressure to offer more
services, to more users, while coping with new applications and
technologies. In addition, they are asked to minimize the risk of downtime
and failure, or rather maximize uptime, while lowering costs.

It's
not uncommon that a cabling solution deployed today will be running out of
capacity in the next five years.

Why?
Because:

  • Today's
    server will be tomorrow's desktop

  • Every
    five years you can suffix a zero to your current Ethernet data rate

  • Cost
    of bandwidth is dropping faster than packets on a poorly designed
    network

  • Processing
    power will continue to double every 18—24 months, while cost
    declines

  • Terabytes
    of data moving and stored on today's networks will triple over the
    next five years

  • High-performance
    computing, multi-site collaboration, and real-time streaming media
    will choke today's network infrastructure over the next five years

Hence,
the need to build in tolerance, by installing high-performance,
high-quality systems, while protecting against uncertain future
developments in technologies, products, and applications that may require
major (and costly) upgrades. Such risks are managed only through a careful
selection of systems with reliability, scalability and the future in mind.
This is particularly true for the cabling infrastructure. Keeping the
above in mind will help IT and network manager to have an infrastructure
geared for the future.

The industry has
experienced steady growth over the years but the last fiscal (2004-05) was
special as it witnessed a very large deployment of networks across all
verticals.  10 GE on copper is
gaining importance and is being widely installed. Apart from this intelligent
cabling is making its way in large enterprises. The enterprise is also
installing both wired and wireless network to derive maximum benefit of both
bandwidth and mobility. POE is another technology that will be deployed more
than expected.  An integrated
cabling network is also catering to the other applications such as security,
fire alarms, HVAC, and building automation systems.

Case
Study: PNB India

Implementer:
PNB India                              Â
Vendor: Siemon

Punjab
National Bank - Punjab National Bank (PNB) is one of the largest profit
making banking and financial service institutions with more than 4000
offices located in various parts of India. To cope with the increasing
number of network users and real-time demands from customers, PNB decided
to upgrade their existing Category 5e cabling system to Siemon's 10G ip
copper and fiber end-to-end solution. The solution is implemented in the
bank's NOC and Data Center located Delhi. More than 600 points of 10G
copper connectors and 200 points of 10G fiber were installed to support
various bandwidth intensive applications such as data, video, and
multimedia. In addition, close to 1,000 pieces of 10G BladePatch cords
were used in this high density network environment. In 2005, PNB will be
adding another 1500 branches throughout India to offer the latest and
fastest services to its customers. The NOC and Data Center will be the key
in monitoring the entire network. Siemon's 10G ip cabling solution
ensures the NOC and Data Center will meet future high speed multimedia
network applications.

Source: Siemon

In a corporate
environment, which involves multiple locations, distributed work force and
deferring time zones the cost of managing these is an important element that
ensures efficiency within an organization. The desire for cost efficiency is
driving decision makers to consider introducing intelligence and automation into
the building management.  It is in
such a scenario that the IP platform enables one to integrate voice and data
communications, but also the other elements viz security systems, access
controls, CCTVs, heating, ventilation, air-conditioning, (HVAC) etc. While the
introduction of automation and intelligence is beneficial from a technology
standpoint, the crux of the decision lies in the need for saving cost, achieving
higher speeds and better performance.

Globally, structured
cabling trends get guided by the bandwidth crave in all the three media. There
are newer products with higher transmission speeds in the market today. Copper
accepts Cat6 Augmented and 10G over copper range, fiber gets low water peak
fiber compatible for CWDM transmissions and Wireless already has products with
100Mb/s speeds. However, while all new product range is available for us in
India the installation investments are largely governed by price.

Case
Study: Cognizant

Implementer:
Cognizant                              Â
Vendor: ADC Krone

Cognizant
Technology Solutions provide application outsourcing services and
enterprise consulting solutions to Fortune 500 and blue chip companies in
the US and Europe through a streamlined on-site/offshore development
model. To meet the stringent quality standards, it has set for itself,
Cognizant decided to go in for a state of the-art connectivity solution.
The CAT 6 standard had just been ratified at that point of time. Cognizant
picked Krone's PremisNET CAT 6 solution for its Kolkata operations.

PremisNET
comes with TrueNet Technology offering a Zero Bit error guarantee, over
and above the CAT 6 standard. The new CAT 6 KM 8 Jack from Krone, offering
cable management at the conductor level, was also used in this deployment.
Network Solutions, Kolkata, completed the 3,300 node installation in 50
days.

The
backbone of the installation is on Om3 fiber, generally 50m multimode
fiber cables is used in such deployments. The fiber connectivity was made
using SC connectors and pigtails. Cognizant and Krone both preferred
splicing to normal connectorization in order to have a backbone with low
losses. Sliding Polycarbonate Fiber Patch panels were decided upon, to
facilitate easy maintenance and faster scalability. Horizontal
connectivity was on Krone PremisNET CAT 6 cables with TrueNet Technology.
The tape filled cables offer an impedance matching of 100 +/- 3 ohms,
which is 100% more than what the new CAT 6 standards require (100+/- 6
ohms). Over 200 km of CAT 6 cabling was used in this deployment. The
outlets were the new PremisNET KM 8 CAT 6 jacks. The new Krone KM8 CAT 6
jack with the cable manager ensures that each wire follows an exactly
prescribed path maintaining all necessary electrical parameters, and
guaranteeing that the termination stays perfect.

Source: ADC Krone

GROWTH DRIVERS

In the recent past, what has been most noticeable is the introduction of
standards such as 10GE-over-copper. There have been many early deployments of
10G-over-UTP and Cat 7 as well, which augurs well for the times ahead. Another
new technology that has emerged is the Power-over-Ethernet (PoE), but it is
still too early to see some significant deployments of this. Initially, there
was a lot of hype over 10G-UTP structured cabling solution but the good thing is
that it is fast gaining acceptance. The hype is getting translated into market
orders, fortunately! More and more vendors are introducing their own brands of
this technology. This is also a sign that Indian businesses are embracing
what's new in the market in an attempt to protect their investments in
technology for the years to come.

There is a scarcity of network
management staff and, therefore, remote access and management of devices
is logical

There have been one or
two model Cat 7 deployments as well, but they account only for a miniscule
percentage of the overall structured cabling systems market in the country.Â
Once the IEEE, which is currently working on the 10G-UTP standard,
ratifies this, it will be called Augmented Cat 6 or Cat A6. It will witness far
more deployments than today.  Businesses
may deploy this even at the backbone level and this is where it will compete
with the fiber. Even if you compare it with fiber in terms of cost, it is going
to be cheaper when it comes to the cost of acquisition, installation and
maintenance. The total cost of ownership (TCO) will be lower than fiber. 

Definitely the
deployment of 10G on copper networks will drive the growth. The campus networks
on fiber will also play an important role with educational institutes,
manufacturing enterprises getting networked. Intelligent cabling will also fuel
the growth in the days to come.

Gigabit
Connectivity-Fiber Vs Copper

Cat
6 cabling continues to gain ground against Cat 5e. However, major
deployments of Cat 5e cabling products are still going on. The continuing
popularity of Cat 5e may be attributed to its capacity to deliver the
gigabit speed. It is also a very reasonable solution, something that's a
major criterion in most projects.

The
most popular horizontal cabling systems today are Cat 5e and Cat 6. Both
these systems are capable of carrying data in the gigabit speed range.
Fiber (two-core) is also seen in a few applications in the form of
fiber-to-the-home (FTTH).

As
for the advent of 10G-over-copper, one needs to only look at history to
understand that copper, at the same speed has always been cheaper to
deploy than fiber.

Fiber's
biggest advantage is no-interference. Fiber is completely future proof. It
remains unaffected by EMI and RFI effects. Two core tight-jacketed cables
are normally used for these applications. Mostly multimode 62.5u fiber
goes in multi-storied buildings as a vertical backbone and 50u laser
graded or single-mode fiber goes as a horizontal backbone in the big
campus-wide projects.

Industrial Ethernet
will also gain importance as automation has increased. The latest machinery at
the shop floor today provides an Ethernet port for the data management. SCADA
applications in large establishments such as power, cement, steel mills will
ensure that the opportunities are ever increasing for the cabling world.

Metro Ethernet will in
turn also fuel the growth of the cabling in the enterprise as this means that
the pipe will be large at the backbone that will challenge the enterprise to
pump more data on the backbone. There would be more and more applications of 10G
over copper that too through more robust SFTP cables, thanks to the
ever-increasing electro magnetic noise. There comes yet another area, PoE, which
would use existing cable infrastructure to provide power to host of equipments
through same data ports. Fiber medium would see more of FTTX applications.

THE PRICING

One may like to keep in view here that the 10G-over-UTP solutions will be
costlier than Cat 6 solutions as of now and buyers will have to pay a premium
for having the new technology. Estimates, however, vary from vendor to vendor
over the premium. According to an estimate, a pre-standard Cat A6 installation
could be up to three times costlier than a Cat 6 installation. Another claim is
that customers can expect to pay upwards of a 30% premium on material to deploy
10Gig solutions to a full 100m.

What does that wide
gap in estimates mean? Two things. One, vendors are ready to negotiate on
material prices. Two, service and support components are going to be pretty high
as compared to Cat 6 installations.

Yet another way of
estimating Cat A6 costs, could be a comparison with 10G fiber. It is understood
that 10G copper networks will be approximately 50% cheaper than 10G fiber
networks. This approach assumes that it's still early days to compare a 1G
copper network to a 10G copper network.

Ultimately, although
the initial offering will be expensive to deploy, increased volumes will bring
the cost of 10Gig-over-copper down relatively quickly. In particular, the
deployment of 10G on a larger scale will only be possible if the cost of per 10G
port comes within the buying capacity of corporate customers. It may take
another year for these products to start gaining some ground in India. Till that
time the technology itself will continue to mature.

Intelligence
Ahoy!

An
intelligent cabling system is a solution for providing up-to-date accurate
documentation in real-time so that customers can minimize costly network
failures and downtimes. It integrates network layer and physical layer
management, reduces staff workload, and more importantly reduces the time
for moves, additions and changes (MACs) by automating the management of
the physical layer.

Intelligent
systems can allow monitoring and managing of all fiber and copper
connections, across a site or at remote locations, from PCs anywhere on
the LAN. This significantly eliminates wiring errors and cuts downtime by
empowering administrators and technicians to monitor the entire
communication network from one point.

Every
fiber and copper port connection is continuously monitored, verified, and
logged in a central database. Whenever there is an unplanned change on any
panel, the system can be configured to trigger notification via pager,
e-mail, and even the phone. Automated work orders and updating of the
database, connectivity maps, and logs save administrators' time.

These
are some of the key benefits of intelligent cabling systems:

  • Minimizes
    the network down time

  • Reduces
    cost by improving the process of moves, additions, and changes

  • Guarantees
    documentation accuracy

  • Improves
    response time

  • Online
    tool for troubleshooting

  • Allows
    mobility-remote working over the Internet

  • Improves
    the performance and service levels

  • Enables
    remote management

  • Encourages
    asset utilization

  • Strengthens
    security by identifying unauthorized changes and by notifying alarms
    on an immediate basis

THE COMPLIANCE FACTOR

The whole point of setting standards is to ensure that the user is able to
access the best available and suited technologies within each segment-UTP cable,
connecting hardware, patch cords, and other equipment. Further, it ensures that
users end up with fully standards-compliant solutions.

The EIA/TIA Cat 6
standard underlined the need for 'interoperability' or, in other words, for
component-level compliance. This simply means that each component in the passive
network must individually meet the standard set for it, apart from the channel
(all components put together) meeting the overall requirement. When each
component meets the standard, customers can virtually pick and choose products
from different vendors based on the technology strengths of each vendor. This is
the evolved 'mix and match' philosophy that is prevalent in most developed
markets. This dynamics allows users to cherry-pick, ie access best-in-class
technology in each product family. More significantly, it puts pressure on
vendors to keep improving the qualities of their end-to-end solutions or else
face the prospect of the user eliminating a low-performance portion and picking
it up from elsewhere.

Component-level
compliance became more important with the emergence of Cat 6 because the
objective of Cat 6 was to provide headroom for future applications much over Cat
5e. This implies that the best technology should be made available to users.
Some vendors adopt the easy way out by not revealing component-level performance
to customers. They bundle their Cat 6 offering under 'channel compliance'
and get away. The customer realizes this only when new applications do not work
very well with the solution. The safeguard for users is to insist on detailed
component-level specifications of the products being evaluated by them.

In 10G applications
one has to assure that the system meets information carrying capacity. All this
obviously leads to emphasis on component-level compliance as per the standards.

WIRELESS NETWORKS A THREAT?

There are discussions about the threat posed by wireless networks to
structured cabling. But on a closer look, it would appear that wireless networks
are not a threat to structured cabling in any way, form or manner whatsoever.
Indeed, they are an opportunity for integrated functions. They are for users who
are mobile and need to access the main network while on the go. In case of large
corporate/enterprise implementations not just everything can be turned wireless
for it has some limitations as against a traditional network with structured
cabling. A wireless network can run into issues like security, bandwidth/speed
and capacity of data transmission etc. These can become a bottleneck as and when
the users grow beyond a certain point.

FAQ

What is the
relationship between the IEEE and 10-gigabit Ethernet over copper?

The Institute of Electrical and Electronics Engineers Standards
Association (IEEE) is the leading developer of global industry standards
in a broad-range of industries. Ethernet is the most widely used network
protocol standard in the world. 10-gigabit Ethernet over copper is
currently the subject of an IEEE task force working toward a standard for
Ethernet at 10-gigabits per second over unshielded twisted pair cabling
(P802.3an). This will allow users to run data 10 times faster over copper
than the current standards allow.

 

When will
10-gigabit Ethernet be available?

The
ratified standard is expected in 2006. The fact is, as infrastructure,
cabling systems must precede the future electronic requirements and
protocols. This was the case with Category 5e and Category 6 in
anticipation of gigabit Ethernet.

 

Will
10-gigabit Ethernet work with Category 5e or Category 6 standards
compliant systems?

10-gigabit
Ethernet will have a very limited range over current Category 6 systems at
best (up to 55 m), and in worse case scenarios, where substandard product
was installed, it may not work at all. The IEEE has determined that a
Category 5e solution was not feasible and would not be investigated
further.

 

Does a
10-gigabit Ethernet system have to be shielded?

Early
indications showed that the cable might need to be shielded.

 

Could I use
fiber instead?

10-gigabit
Ethernet fiber standard has been established for some time. However, the
cost of installation and electronics for fiber to the desk has greatly
slowed its acceptance.

 

Why should
I install a 10-gigabit Ethernet capable structured cabling system now?

It's all
about viewing your cabling infrastructure as a long-term investment.
Pulling up false floors or working in ceiling spaces is hard enough the
first time. But if your system does not meet your future needs, then the
level of disruption to business operations and additional cost down the
road is much greater. For a slight increase of only a few percentage
points in the cost of the project, it will save clients re-cabling their
premises in the coming years. This gives true future proofing and
flexibility.

 

What does
10-gigabit Ethernet mean to an end-user?

If you have
installed a gigabit Ethernet system using Category 5e or Category 6, then
a single file that takes 30 seconds to send will be reduced to 3 seconds.
Multiply this productivity benefit across your business and it is easy to
understand the rapid adoption of the latest networking technologies by
businesses.

 

Is this a
ratified standard?

No, this is
not yet a ratified standard.

 

Why won't
10-gigabit Ethernet work to 100m on today's Category 6?

This is
because of the increased levels of alien cross talk or interference from
adjacent cables and connectors that the higher frequencies generate. This
requires improved cable and connector designs to compensate for this
technical obstruction. Furthermore, installation practices must be
considered to minimize the effects of alien cross talk.

 

Where will
10-gigabit Ethernet be used?

10-gigabit Ethernet over UTP will find its first applications in data
centers, medical facilities, higher education campuses and enterprises
that routinely work with large electronic files that require increased
bandwidth. However, as new technologies emerge, all network users will
quickly realize the benefits of the more advanced infrastructure.

Wired and wireless
networks are complimentary to each other. The wired networks offer a dedicated
high bandwidth for the ever growing need for speed of a network whereas the
wireless network offers a shared and low speed bandwidth. The advantage with
wireless is the mobility that it can offer. It is worth mentioning that even the
wireless access points need a wired connectivity. This goes to prove that
wireless and wired are complimentary to each other.

Over the next few
years, both the wired and the wireless networks will coexist and cohabitate.
With its ability to support feature-rich applications, organizations are
realizing that wireless is a viable option to run enterprise-wide applications.
Today business benefits have compelled organizations with small offices and the
SOHO segment to be the first movers in adopting wireless as a standard against
structured cabling. However, large enterprises will continue to have a hybrid
solution for the next few years.  Wireless
will help service providers drive broadband in the home and small office
segment. 

All the three media
for information transmission-copper, fiber, and wireless (radio frequency)
would coexist. They complement one another due

to their inherent strengths and

weaknesses.

PREFERENCE FOR CAT6

A survey of networking and IT managers conducted amongst 2,165 network and
IT professionals in 48 countries (including India) by Systimax revealed 72
percent favoring the deployment of Category 6 copper cabling for next
installation. This includes 16 percent of the total who would install cabling
conforming to the proposed Augmented Category 6 (Category 6A) standard for 10 Gb/s
connections over copper cabling.

It would appear that wireless
networks are not a threat to structured cabling in any way, form or manner
whatsoever. Indeed, they are an opportunity for integrated functions

Results of new global
research study also revealed that these professionals are willing to adopt new
cabling technology at an early stage to ensure they have the bandwidth they
need. As Gigabit desktop connections become the norm and 10Gb/s is seen as the
way ahead, managers see high quality cabling as an investment rather than a
cost.

The report, titled
Meeting the Connectivity Challenge, covers technology trends for the physical
layer of enterprise networks. The respondents across wide ranging verticals,
gave details of their current and planned connectivity, with particular
reference to 10-gigabit networking, intelligent infrastructure management and
wireless connectivity.

Standards
and Categories

ISO/IEC
and TIA/EIA

Both the ISO/IEC and TIA/EIA standards organizations have defined generic
cabling systems suitable for medium and large offices. Details of these
can be found in the ISO/IEC IS 11801 standard for Customer Premises
Cabling and TIA/EIA 568B. ISO/IEC IS 11801, TIA/EIA 568B and the European
version, EN 50173-1, are all key standards for cabling installation. These
cover similar areas, but use different approaches to conformity. ISO/IEC
IS 11801 is a global standard that has evolved to meet the needs of all
geographic areas. As a result, some of its requirements are very broad.

 

Cable
Categories

TIA/EIA 568B and ISO/IEC IS 11801 specify several cabling categories. The
first two categories are suited only to voice and data communications up
to 4 Mb/s and are seldom used in data networking applications.

Category
3 cabling is generally regarded as suitable only for networks operating up
to 16 Mb/s using active equipment. Primary usage is for backbone cabling
to support voice (but not VoIP).

Category
4 cable was developed to support communications at l6 Mb/s over runs up to
100 meters, but is now considered obsolete.

Category
5 cabling was designed to support applications up to 100 Mb/s. Reliable
support for 1 Gb/s requires additional performance specifications, and
existing installations may not comply. Category 5 cabling is now also
considered obsolete. Category 5e (Enhanced Category 5) is an upgrade to
Category 5 specifications that was targeted as minimally compliant support
of Gigabit Ethernet (1000BASE-T). The m