ETC TXC

AsTriX Device
CellBus Expansion Switch
TXC-05840
PRODUCT INFORMATION
®
• Interoperable with CUBIT -3 (TXC-05804),
CUBIT-622 (TXC-05805), Sertopia™
(TXC-05860), and ASPEN® (TXC-05810) UTOPIA
Level 2 interface
• Non-blocking switching capacity
• 8 UTOPIA Level 2 ports at rates of up to OC-12
• Configurable cell (or packet chunk) size per port of
52 to 64 bytes
• Switch engine operating at 33 MHz or 50 MHz
system clock
• Switch bandwidth determined by the system clock
and settings
• Host insertion/extraction for the local host interface
• 16-bit general purpose microprocessor interface
operating up to 33 MHz
• Motorola MPC850/860 microprocessor compatible
• Backpressure mechanism to avoid cell loss
• Two priority levels supported for both unicast and
multicast to any combination of destination ports
• Per port statistics supported
• Chip diagnostic mode supported
• Built in self test for power-on reset
• LED leads for chip status and port status
• Test Access Port for IEEE 1149.1 boundary scan
• +3.3 V and +1.8 V power supplies
• 640-lead Plastic Ball Grid Array package (PBGA),
31 mm x 31 mm
The AsTriX™ (TXC-05840) CellBus Expansion Switch is
a single chip switching solution for ATM systems. In order
to meet the accelerating need for bandwidth in access
systems, the AsTriX is designed to allow higher CellBus
throughput by aggregating multiple CellBus shelves
through a switch, and is capable of rates up to 800 Mbit/s
per port. The AsTriX ports support UTOPIA Level 2
interfaces. The switch is non-blocking, incorporating a
backpressure mechanism for eliminating congestion
towards any one port.
The switch may be used to scale a CellBus architecture to
deliver up to 9.6 Gbit/s system bandwidth, by connecting
up to 8 CellBus segments (each capable of 1.2 Gbit/s
switching). A single port (or multiple ports) may be used to
implement an OC-12 uplink in a mux application.
Together with TranSwitch’s CUBIT, ASPEN and Sertopia
family devices, the AsTriX switch device can be used to
create a cost effective point-to-point serial backplane based
access system.
APPLICATIONS
•
•
•
•
•
•
Remote Access Concentrators
Multi-service Access Devices
Digital Cross Connect Systems
DSLAM
Routers
Aggregation of multiple CellBus shelves
Status
Clock, controls, test, etc.
Port 1
Port 5
AsTriX
Port 2
Port 6
CellBus Expansion Switch
UTOPIA Level 2 Ports
Port 3
UTOPIA Level 2 Ports
Port 7
TXC-05840
Port 4
Port 8
Address
Data
Controls
Microprocessor Interface
Copyright  2002 TranSwitch Corporation
AsTriX and Sertopia are trademarks of TranSwitch Corporation
TranSwitch, TXC, ASPEN, CUBIT and CellBus are registered trademarks of TranSwitch Corporation
TranSwitch Corporation • 3 Enterprise Drive • Shelton, Connecticut 06484
Tel: 203-929-8810 • Fax: 203-926-9453 • www.transwitch.com
Document Number:
TXC-05840-MC
Ed. 5, March 2002
•
USA
Proprietary TranSwitch Corporation Information for use Solely by its Customers
DESCRIPTION
FEATURES
AsTriX, TXC-05840
APPLICATION DIAGRAM
CellBus Shelf 1
To CellBus
Shelves 6, 7 and 8
CellBus Shelf 2
AsTriX
Proprietary TranSwitch Corporation Information for use Solely by its Customers
CellBus Shelf 3
CellBus Expansion Switch
TXC-05840
CellBus Shelf 4
CellBus Shelf 5
High Speed
Serial Interfaces
CellBus Shelf Aggregation Application
Port density is at the heart of driving costs down for service providers. Physical layout constraints
limit the number of ports that can be connected to a single line card and the number of line cards that
can be put in a single shelf. However, by providing the ability to switch between multiple CellBus
shelves it is feasible to effectively extend the number of ports in the system to include all of the ports
on all of the shelves, thereby increasing the port density of the system, as shown in the diagram
above. This is a more cost effective solution than using an edge switch with OC-12 interfaces.
RELATED PRODUCTS
• TXC-05804
• TXC-05805
• TXC-05810
• TXC-05860
CellBus Bus Switch (CUBIT-3)
Multi-PHY CellBus Access Device (CUBIT-622)
CellBus Access Processor (ASPEN)
UTOPIA Serializer (Sertopia)
FURTHER INFORMATION
Contact TranSwitch for technical and ordering information on these products, including details of
available operational firmware.
TranSwitch reserves the right to make changes to the
product(s) or circuit(s) described herein without
notice. No liability is assumed as a result of their use
or application. No rights under any patent accompany
the sale of any such product or circuit.
TranSwitch Corporation • 3 Enterprise Drive • Shelton, Connecticut 06484
Tel: 203-929-8810 • Fax: 203-926-9453 • www.transwitch.com
Document Number:
TXC-05840-MC
Ed. 5, March 2002
•
USA