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Home > News > Press
Releases > 2003.04.02
Unit now offers up to 50 user-selectable rates
Wallingford, CT (USA) - DNE Technologies, a provider
of tactical voice and data communication solutions, announces that
its has added seven additional user-selectable rates to its CV-8448
NRZ to CDI protocol converter line. These added rates bring the
number of available user-selectable data rates to 50. New data rates
were added to the CV-8448 line to expand DNE's interoperability
with deployed tactical communications equipment, allowing maximum
throughput of critical communications.
DNE's CV-8448 products allow the bridging of NRZ and CDI protocols
so cameras, routers, cryptos, and other NRZ devices can be positioned
at significant distances from the satellite terminal. DNE's
NRZ to CDI conversion products offer both rates up to 8.448Mbps
over fiber-optic cable, and rates up to 4.608 Mbps over copper.
The enhancements extend DNE's capability to support TRI-TAC
digital trunk groups and new, emerging satellite technologies while
utilizing the reliability and economy of fiber connections. The
new added rates are: 2.816, 3.200, 3.968, 4.800, 4.824, 6.312, and
8.604 Mbps for specific product interoperability.
DNE's CV-8448 Protocol Converters perform NRZ-CDI, CDI-Fiber
and NRZ-Fiber conversions at a variety of data rates, ranging from
16kbps to 8.448Mbps. Flexible timing options allow either pass-through
synchronous timing, or referencing of GPS timing sources and station
clocks. The NRZ interface may be configured to support either the
red or black side of an encryption unit. The CV-8448 series is offered
in five models which will support fiber-optic or copper-wire, in
stand-alone or rack-mounted options. In addition, independent data
mark sense is user selectable.
The CV-8448 units are designed to bridge the two most popular cable
link protocols utilized in tactical communications, NRZ and CDI.
Non Return to Zero (NRZ) is prevalent among data routers, hubs,
switches, video cameras, and modems because it offers an economical
high-speed interface, yet NRZ devices have output distance ranges
that are extremely short. Conditioned
Di-Phase (CDI) protocols are used where wire or fiber-based connections
are needed to send high-speed data over long distances (2 to 4 km). CDI interfaces
on data routers can thus be configured to run at higher speeds,
and the reach of video cameras and other popular NRZ devices can
be extended to be positioned up to 4 km from a satellite terminal.
Three CV-8448 stand-alone models are being offered
in this series. Each model supports Balanced CDI rates from 16kbps
to 2048kbp; Unbalanced CDI rates from 72kbps to 4608kbps over an
integrated copper-wire UG-1837 connector; a front panel display,
and a 48/5 VDC Power source for popular encryption units. In addition,
primary lightning protection is offered on the copper wire connections.
The CV-8448FSM transports data over 9/125_m @1300nm singlemode fiber
with metal ST-style termination connectors. The CV-8448F transports
data over 62.5/125_m @1300nm multimode fiber using metal ST-style
termination connectors. All fiber connections support rates from
72kbps to 8448kbps. The CV-8448CX Model offers copper-wire connections
only with a maximum rate of 4608kbps.
Two CV-8448 models are being offered as dual rack-mount units. Each
model contains two individually configurable converter modules in
a one-RU chassis (1.75" high), configurable through a terminal
connector at the rear of the chassis. The converter modules offer
balanced CDI rates from 16kbps to 4608kbps and Unbalanced CDI rates
from 72kbps to 8448kbps in both copper-wire and fiber-optic connectors
(with a maximim copper-wire rate of 4608kbps). The individual converter
unit can be "hot swapped" without powering down the unit.
The CV-8448-D supports multimode fiber over 62.5/125_m @1300nm,
while the CV-8448-DSM supports singlemode fiber over 9/125_m@1300nm.
The CV-8448 Converter and DNE's ATM Concentrator Line permit full
use of emerging broadband satellite services, while allowing data
communication and encryption devices to be physically grouped to
simplify monitoring and control of communication links.
For more information on the CV-8448 family,
the TAC ATM Concentrator Line, or the AN/FCC-100(V)9 or other DNE
products, contact DNE Technologies at (203) 265-7151 or (800) 370-4485,
by e-mail at Info@dne.com, or visit their web site at www.dnetech.com.
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