AT&T Awarded $157 Million Contract
To Build Undersea Fiber-Optic Cable
—Color Brochure Available
AT&T has been awarded a $157
million contract to build a new un-
dersea fiber-optic cable that will
link the U.S. mainland to Hawaii in
1993.
Known as Haw-5, the cable is the
fifth to link Hawaii to the mainland
and the second fiber-optic cable to
do so.
The cable, which will carry voice
and data traffic, includes three pairs
of fiber, two active and operating at
560 megabits per second and one
fiber pair for reserve. If the entire
cable were used for voice, it could
handle 80,000 simultaneous tele-
phone conversations.
The world's first transoceanic
lightwave system, TAT-8, went into
service in 1988 and has a capacity of
40,000 simultaneous telephone calls.
TAT-9, to be deployed in 1991, will
handle 80,000 simultaneous calls.
A new fiber-optic cable would
have a capacity of 600,000 simulta-
neous conversations using optical
amplifiers and operating at 2.4 giga-
bits (billion bits per second) over
two pairs of fibers and using con-
ventional compression techniques.
AT&T Bell Laboratories scien-
tists are experimenting with optical
amplifiers in ultra-long-distance
systems and in systems for island-
to-island or coast-to-coast transmis-
sion. Related research involves
high-repetition lasers, pump lasers,
all-optical logic elements, integrated
optical waveguide devices, and new
types of optical fiber.
AT&T also announced that it is
adding a $6 million robotic Seabed
Tractor to its stable of undersea
cable laying equipment. The 10-ton
vehicle can begin burying cable at
the top of a beach, drive through the
surf and continue laying cable until
the water is almost a mile deep.
Undersea cable is buried in a
trench about 3 feet deep. When
trenching, the hydraulic-powered
Seabed Tractor travels at speeds
ranging from 3 to 15 feet per min-
ute, and can reach speeds up to 150
feet per minute when not trench-
ing.
The Seabed Tractor, which is
NEI Syncrolift Wins Over
$3 Million In Orders For
Shiplifts, Transfer Systems
NEI Syncrolift of Miami, Fla., a
world leader in shiplift technology,
has received two more orders for
shiplifts and transfer systems val-
ued in excess of $3 million.
One order for an eight-hoist unit
with a lifting capacity of 1,150 tons
was placed by the TOA Corporation
of Japan. The Syncrolift, for instal-
lation at Port D'Agadir in the King-
dom of Morocco, is to be used for
the docking of fishing vessels.
The second order, for an 1,860-
manufactured by Soil Machine Dy-
namics in Newcastle, U.K., will be
stationed in Baltimore.
For further information and a
free copy of the brochure on sub-
marine cable systems from AT&T,
Circle 39 on Reader Service Card
ton unit, was placed by Etermar of
Lisbon, Portugal, for a Syncrolift
Shiplift and Transfer System for
installation on the Island of Madei-
ra, off the coast of Portugal.
These new orders bring to 190 the
number of Syncrolifts installed or
under construction in 63 countries
around the world. Currently, there
are nine new Syncrolifts under con-
struction in Europe, Japan, the
Middle East, Africa and in the Pa-
cific. The largest of these is capable
of handling vessels of up to 100,000
dwt, while the smallest lifts less
than 300 tons.
For free literature giving full in-
formation on NEI Syncrolift,
Circle 29 on Reader Service Card
SK66KtiMm RopeMaster
Circle 306 on Reader Service Card
Maritime Reporter/Engineering News
"Engineered for extremes.
That's the meaning of'Skookum'."
Skookum originated in logging. There's
no tougher test than work in the woods.
And in logging lingo, "skookum" means
the best.
When we started serving the fishing
industry, we introduced trawl blocks,
shackles, and hooks that are engineered
tor extremes.
Our best testimonials come from fisher-
men. When conditions are as bad as
they can get, Skookum equipment keeps
working. And Skookum lasts longer,
making it an even better investment.
We're proud to wave the flag, too. All
Skookum equipment and parts are made
in the U.S.A. This means the finest
quality, faster delivery and better
availability.
Hey, when you're 500 miles out at sea
and fishing is at its peak and there is a
storm whipping up, rigging should never
be a worry. Right? Reliability is crucial.
That is why Skookum is catching on fast
in the fishing industry.
Skookum/RopeMaster
P0 Box 280
Hubbard, Oregon 97032
503-286-3627
1-800-547-8211
FAX 503-651-3409
AN ULVEN COMPANY
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Lon/ecil, Inc
• Meets MIL-M-15562F
• High dielectric strength
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928 East 238th St (A)
Carson, Calif. 90745
(213) 775-4048
(800) 832-7111
Telex: 65-3584
Circle 325 on Reader Service Card
20
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