In Broadcast - NAB SHOW 2017 - 36

36

www.inbroadcast.com | NAB Show 22-27 April 2017 | Product Preview

Fiber and IP Transport
Trends in Live Digital
Transmission
By Frank Jachetta, President,
MultiDyne Video & Fiber Optics...

A

s broadcasters and professional
production teams increasingly
adopt IP technologies, they discover
new efficiencies as to how they
manage and deliver content across
two or more points. The patchwork of
cables, components and connectors
increasingly slims as operations
migrate to the network.
Fiber and IP therefore share
many of the same benefits, and
can both be used for point-to-point
transmissions. However, the flexible
addressability of IP networks also
makes IP highly attractive for
multipoint
configurations,
where
users are sending content between
many points in a broadcast, unicast
- or increasingly - a more bandwidthefficient multicast configuration that
address devices across a network.
With so much fiber infrastructure
in place globally, we see ample
opportunities for both fiber and IP,
now and moving forward, in live
transmission. Additionally, we see
opportunities for fiber and IP to
co-exist, as we wait for IP network
bandwidth to increase to cover 4K
and 8K with little or no compression.
These IP networks are already at very
high bandwidths and require fiber
as conduit already, further utilizing
existing fiber infrastructure.

In surveying the landscape today,
point-to-point dark fiber transport
remains the standard. For example,
innovations in camera-back and
portable fiber transport units have
greatly simplified sports production.
Consider how a mobile broadcaster
can efficiently transport video and
audio from a distant hole on a large
golf course by simply leveraging a
high-density throwdown fiber unit.
Fiber was the breakthrough that made
life much easier for these engineers,
and for the time being there seems to
be a greater benefit in evaluating and
updating existing fiber infrastructure.
This remains true when it comes to
supporting emerging needs like 4K and
12Gb/s.
High Bandwidth
Fiber has always offered efficient
bandwidth, and the higher bit rates
and data rates of 4K, 8K and 12Gb/s
signals are a perfect complement. For
live transmission, fiber is also a very
affordable option, with only a modest
budget required to pair today's more
innovative camera-back fiber transport
systems with low-cost cameras from
companies like Canon, Blackmagic
and AJA on the acquisition side.
Similarly, bringing fiber to POV and
robotic cameras for live events and

smaller sports productions combine
the benefits of optical transport with
the labor and training savings of
unmanned acquisition.
Broadcasters have also grown
comfortable with the elegance of using
fiber signal transport compared to
expensive and cumbersome copper
tethering. Instead, fiber offers a
reliable way to transport a camera
feed to the control room or production
truck over a single, lightweight cable.
Multiple copper cables, including
power, can be reduced to one SMPTE
hybrid fiber cable or one strand of
single-mode fiber, simplifying wiring
while giving camera operators more
movement and flexibility.
Fiber's convenient simplicity and
transport density aren't limited to
camera connections. Anywhere you
have multiple audio, data or video
connections, upgrading to fiber can
eliminate the mess of copper cabling
that typically comes with them, making
everything easier and more flexible.
These are all very compelling
reasons to stick with a fiber
infrastructure for live transmission for
the foreseeable future. However, with
the advance of IP-based networking
into every aspect of our business
and
personal
communications,
it only makes sense to consider
how these same companies can
leverage IP to move signals between
cameras, switchers, and even control
rooms miles away. And with a fiber
infrastructure already in place, there
is also a foundation for broadcasters to
leverage for multipoint IP networking
moving forward.
The proposition makes sense on the
surface: Since IP is being used to carry
all kinds of data in today's world, why
not leverage it for the transmission of
high-data rates associated with digital
and UHD video?

Throwdown Connectivity MultiDyne LightBrix VB-3600 Series

Standard Question
Foremost, there are questions of
interoperability. With no firm, agreedupon standards in place, broadcasters
cannot be certain that the proprietary
IP-direct products they buy today
can interoperate with those from
other vendors tomorrow. There is no
question that broadcasters would feel
more confident from a protect-yourinvestment standpoint if they had
standards to count on.
As these standards develop,
transitioning to transport systems that
support both today's and tomorrow's
opportunities will be key. For today's
opportunities, emerging products are
beginning to accommodate 12Gb/s
down a single fiber, instead of bulky
'quad-core' assemblies of four 3G
cables ganged together. This offers an
ideal scenario for point-to-point fiber.
Broadcasters toying with the idea
of transporting camera feeds over IP
direct to a switcher are increasingly
requesting IP as an additional option.
For example, the base unit of our
camera-back system is available with
an IP output. This offers something
of a test bed as well as a gradual
transition path. For the time being,
IP remains foremost a data transport
standard, and simply cannot transport
data quicker and more reliably than
dark fiber-optic cable.
Offering hybrid fiber/IP transport
solutions to our customers will soon be
a common gateway for broadcasters
that want to maximize their connectivity options, leveraging the reliable
and proven performance of fiber while
hedging their bets on the continued
maturation of IP for live transmission
- and the many emerging business opportunities we all expect.
www.multidyne.com


http://www.inbroadcast.com http://www.multidyne.com http://www.multidyne.com

Table of Contents for the Digital Edition of In Broadcast - NAB SHOW 2017

In Broadcast - NAB SHOW 2017 - Intro
In Broadcast - NAB SHOW 2017 - Cover1
In Broadcast - NAB SHOW 2017 - Cover2
In Broadcast - NAB SHOW 2017 - 3
In Broadcast - NAB SHOW 2017 - 4
In Broadcast - NAB SHOW 2017 - 5
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In Broadcast - NAB SHOW 2017 - 106
In Broadcast - NAB SHOW 2017 - Cover3
In Broadcast - NAB SHOW 2017 - Cover4
In Broadcast - NAB SHOW 2017 - S1
In Broadcast - NAB SHOW 2017 - S2
In Broadcast - NAB SHOW 2017 - S3
In Broadcast - NAB SHOW 2017 - S4
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http://europe.nxtbook.com/nxteu/lesommet/inbroadcast_201612
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