Example of a T1 System
By introducing the XRT95L53, Exar reaffirms its commitment to the SONET/SDH
space, especially the high growth multi-protocol over SONET/SDH segment.
When some competitors are shifting their focus elsewhere, Exar continues
to bring innovative SONET/SDH products to its customers.
This is the first in a family of multi-protocol over SONET/SDH framers extending
Exar's technology leadership into next generation metro core and transport network
markets. Combined with the recently acquired optical networking products from
Infineon, this further enhances Exar's market leadership role. Exar Corporation
is a leading provider of high-performance, mixed-signal silicon solutions for
the worldwide communications infrastructure today added EXtendAR 48M(TM) (XRT95L53)
to its product portfolio - the industry's first universal OC-48/STM-16, Quad
OC-12/STM-4 & OC-3/STM-1 multi-protocol framer.
This makes EXtendAR 48M(TM) an ideal solution for legacy systems as well as add/drop
multiplexers, Optical Edge Devices (OED's), multi-service provisioning platforms
and edge router applications. Deployments of these highly integrated devices
are enabling the convergence of triple-play services together with data over
SONET/SDH. The device employs a unique set of flexible packet framing and encapsulation
features combined with optimal SONET transport capabilities. EXtendAR supports
GFP in combination with virtual concatenation and LCAS, as well as a comprehensive
suite of framing functions such as LAPS, PPP/BCP, and ATM, which are configurable
on a per channel basis.
In addition, EXtendAR 48M(TM) is the industry's first device to incorporate 48
DS3/E3 and fractional DS3/E3 framers on a single chip. With this unprecedented
level of integration of legacy and multi-protocol over SONET/SDH framing functions
in a single device, system vendors no longer have to implement them elsewhere
in the system. EXtendAR 48M(TM), in addition to the SONET interfaces, supports
an OIF compliant SPI-3 interface enabling the device to interface directly to
industry standard network processors, Ethernet switches or RPR MAC's. The device
also supports Exar's industry first G-header interface that provides framing
and encapsulation support for Fast Ethernet, Gigabit Ethernet, RPR, MPLS or proprietary
client data to be transported over SONET.
EXtendAR is a Multi-protocol over SONET
Framer optimized for the Metro core and transport
markets supporting an unprecedented
level of feature-set integration for next generation universal line cards.
