SynOptics Communications, Inc. 
LattisCell(tm) Stand-alone ATM Switch and Connection Management System(tm) 
(CMS) Software Fact Sheet 

March 1993 

PRODUCT OVERVIEW

LattisCell(tm) is a 16-port stand-alone ATM switch that offers the low cost,
small sizh- performance features required to speed the development
of high-bandwidth applications such as imaging and to fuel the advance of
client-server computing.  Each of the 16 ports have dedicated 155 megabit per
second (Mb/s) transmission speed, guaranteed by an aggregate internal
switching speed of five gigabits per second (Gb/s).

The Model 10104 ATM Switch, with multi-mode fiber ports, is aimed at campus
backbone LAN applications where transmission lengths of up to two kilometers
are needed.  The Model 10104 is also useful in workgroup LANs when benefits
of fiber optics, such security and immunty from noise, are desired.  The
Model 10102 ATM Switch, with its 12 shielded twisted pair ports, is aimed at
workgroup LAN applications where users value the low cost per connection
offered by STP.  Four fiber ports permit the Model 10102 to be connected to
fiber backbone switches such as the Model 10104. The LattisCell switches are
compatible with ATM Forum specifications, as well as CCITT and T1S1
recommendations.

Model 10102		With 12 STP and four fiber ports
			U.S. List Price Per Port: $1,495
			Shipping Q3 1993

Model 10104		With 16 fiber ports
			U.S. List Price Per Port: $1,995
			Shipping Q3 1993

Model 760 CMS 		Supports permanent virtual channels
			Shipping Q3 1993
			U.S. List Price:  No charge
	
Model 761 CMS 		Supports switched and permanent virtual channels
			Shipping Q3 1993
			U.S. List Price: $4,495

FEATURES AND BENEFITS

Switches Based on Fast Matrix ATM(tm) Architecture with 5.0 Gb/s Irnal
Bandwidth

	*	Parallel switch architecture eliminates the contention
		found in bus-based architectures

	*	Multiple paths between inputs and outputs minimize
		probability of blocking at switching element outputs

	*	Distributed buffering prevents cells from being lost when
		switching element output blocking occurs
	
	*	Multicast and broadcast capabilities support existing 
		protocol and application software base

Low-priced ATM Switching

With a per-port U.S. list price of $1,495 for the Model 10102 and $1,995 for
the Model 10104, the LattisCell switch is one-half to one-third the list
price of competitive ATM switches.

Switches are Compact and Lightweight

Weighing less than 26 pounds and measuring only 17" wide, the LattisCell
switch can easily sit on a desktop or mount in a standard wiring rack
configuration.

Wide Range of Physical Layer Interfaces

The LattisCell switches employ the ATM Forum's 155 Mb/s, 8B/10B physical
layer encoding.  Future versions of the switches will support the ATM Forum's
155 Mb/s local SONET physical layer encoding.  It is anticipated the local
SONET will support multi-mode and single-mode fiber, STP and Category 5
unshielded twisted pair.

Front panel LEDs and LCD

The LattisCell switch provides an "at-a-glance" summary of its operational
status.  Three LEDs are provided on each port, which indicate the quality of
the link and its administrative state.  System- level LEDs provide
indications of the operation of the fan and availability of power.  An
alphanumeric LED display indicates the overall state of the switch.

Network LattisCell Switches  for Larger Numbers of Ports and Network Level
Redundancy

Each port on the LattisCell switch automatically configures to be a UNI
(end-station attachment) or a NNI (switch-to-switch) interface.  There are no
restrictions on the number of UNI or NNI interfaces to the switch.  The
resulting network can support up to 1,000 end-station attachments and form
topologies that provide redundant paths through the network.
		
Connection Management System

Communications in an ATM network depend on the establishment of connections
between users.  The CMS management software supports the learning of the
network topology, determining the optimum routes and the maintenance of
connections within an ATM network.

	*	Supports switched virtual circuits - for ease of use and
		optimum performance

	*	Management of network resources, including bandwidth

	*	Automatically configures the network - for easy
		installation and maintenance

	*	Automatic routing of calls - supports network redundancy
		and reliability

	*	Acts as a management proxy - locally gathers and filters
		management information before passing onto network
		management station.

SynOptics Communications and LattisNet are registered trademarks and
CellSwitch, Fast Matrix ATM and CMS are trademarks of SynOptics
Communications, Inc.  Other brand and product names are registered trademarks
or trademarks of their respective holders. # # #