Originally designed for the unique needs
of utilities, the TN1U system supports a
wide range of specialty traffic, including
teleprotection (direct transfer trip, pilot
wire, and IEEE C37.94 optical interface
to protection relays), surveillance video,
substation automation, Ethernet WAN/IP
and telephony.
through redundant common equipment
and compliance with ITU-T SDH
standards for path switched ring
protection architecture.
offering the industry's fastest path protection
switching (<3 ms), and incorporating special
design characteristics that allow it to meet IEC
RFI and SWC standards for operation in harsh
utility environments.
For highway, roads, bridges, tunnels,
rail transit , freight railway, and
airport applications the TN1U system
cost-effectively integrates services
previously provided by proprietary and
legacy standards based equipment. Now
these services can be combined to receive
the full benefits of a SDH network.
fare collection, passenger information
and signalling, the TN1U is the optical
communications product of choice.
and 12 Mb/s video wide area networks
(WANs). Each analog video source (camera,
VCR, DVD, etc.) is digitized with a user
configurable compression algorithm for
bit-rate bandwidth management and then
integrated into a shared video WAN.
applications, intelligent bandwidth allocation
allows more bandwidth to be instantly
assigned to specific cam eras, permitting
a higher resolution and more frames per
second. When required, audio and data
channels may be transported with the video.
of quality versus bandwidth by efficiently
transporting video signals.
accessory is also available, which cost
effectively extends video capability up to 30
km from a TN1U node via fibre optic cable.
The rugged design, compact size and
low power consumption of the TN1U also
make it the ideal optical communications
solution for oil, gas, refined products, water
and slurry pipelines. Field proven industrial
applications include electrical distribution
protection and control in mines, as well as
SCADA for onshore or offshore oil and gas
production fields.
value for its user by carrying a multitude
of services such as low speed polling
data, SCADA, power measurement data,
video surveillance, Ethernet WAN/IP and
PBX phone drop extensions over a single
network.