SYSTRAN Corp. Adds New Network Switching Center to Its Line of SCRAMNet
Networking Products

Dayton, Ohio, October 21, 1993 - Systran Corp., developer of the SCRAMNet
Network (a real-time replicated shared-memory system), today announced its
newest accessory to the SCRAMNet Network product line - the SCRAMNet
Network Switching Center. This new switching center provides unprecedented
power and flexibility to the designers of distributed real-time systems.
It offers centralized network configuration control, automatic fault
isolation, fast electronic switching, and media conversion - all in an
expandable, modular design.

Independent switching allows each connected node or sub-ring to be included
in or isolated from an internal master ring. The switching function can be
controlled centrally, either manually or via computer over a RS485 port.
In addition, each node can control its own individual connection via a
separate control line.

Automatic network fault isolation is provided via automatic switch out when
node power or network transmitter failure is detected.

Fast electronic switching of the fiber optic ring induces less than a 1
uSec network disruption, over 10,000 times faster than the 10 millisecond
disruption induced by passive mechanical fiber optic switching
techniques.

The modular design allows the Switching Center to be configured and
expanded for connection of up to 16 network nodes or sub-rings. Each
connection can be configured with either coax, standard fiber optic, or
long link optic media options. A connection configured with long link
optics will allow one or more Switching Centers to be cascaded over
distances of 2 to 4 kilometers.

The SCRAMNet Network is a real-time, replicated, shared-memory system. It
is optimized for the highspeed transfer of data between computers (up to
256) that are all solving portions of the same real-time problem.
SCRAMNet's ring configuration achieves microsecond
application-to-application performance with zero software overhead.
Revolutionary features include data filtering to reduce network traffic,
byte swapping for automatic reformatting of variables, interrupt passing
for synchronization, and a fiber optic ring that handles 150 Mbit/sec line
transmission rates for distances up to 300 meters between computers.
Applications include simulation, telemetry, data acquisition, and virtual
reality.

Located at 4126 Linden Avenue, Dayton, Ohio 45432-3068, (800-252-5601;
513-252-5601) SYSTRAN Corp. specializes in real-time systems simulation
and defense-related hardware/software research and development. The
company's SCRAMNet Network is the industry's leading real-time network,
with hundreds of nodes used in diverse applications throughout the world.


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