Multichannel Devices support T1, E1, and J1 data rates.June 24, 2009 -
For high-density line cards in advanced networking and EoPDH platforms, XRT83VL38 and XRT86VX38 employ R³ (Reconfigurable, Relayless Redundancy) Technology(TM). As fully integrated long-haul and short-haul line interface unit (LIU), XRT83VL38 provides selectable or programmable transmit pulse shaper for flexibility with any T1/E1 circuit. Framer/LIU combo, XRT86VX38, operates at 1.544 or 2.048 Mbit/s for DS1/E1/J1 and incorporates buffering as well as hardware-based messaging support.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Exar Corp.
48720 Kato Road
Fremont, CA, 94538
USA
Exar Adds Highly Integrated T1/E1/J1 Eight-Channel Devices to Communications Portfolio
Next Generation Long Haul/Short Haul Transceiver and Framer/LIU Combination Offer Small Packaging and Low Power - Ideal for High Density Platforms
FREMONT, Calif., June 15 -- Exar Corporation (NASDAQ:EXAR) has released two next generation eight-channel communications devices. The XRT83VL38 is a fully integrated Long-Haul and Short-Haul transceiver, and the XRT86VX38 is a Framer/Line Interface Unit combo (LIU). Both devices support T1/E1/J1 data rates and are available now. These solutions offer Exar's R(3) Technology(TM) (Reconfigurable, Relayless Redundancy) as well as low power and a small footprint ideal for high-density line cards for advanced networking and EoPDH platforms including multiplexers, switches, routers, digital cross connects and wireless backhaul systems.
"Telecommunication service providers continue to build-out the communications infrastructure, specifically the 3G/4G wireless backhaul networks, to meet rapidly rising demand," said John Williams, vice president of Exar's Datacom and Storage business unit. "These highly integrated solutions enable high-density, cost effective solutions for backhaul over existing copper networks to meet the needs of the evolving infrastructure."
Key Features
The XRT83VL38 is a fully integrated octal (eight channel) long-haul and short-haul line interface unit (LIU) for T1, E1, or J1 applications. B8ZS, HDB3 and AMI encoding and decoding functions are supported. The transmitter provides a selectable or a programmable transmit pulse shaper for flexibility with any type of T1 or E1 circuit. Optimal performance is achieved via two on-chip crystal-less jitter attenuators and adaptive receive equalizers. A variety of loop-back and diagnostic features support in-circuit fault isolation and help reduce development time.
The XRT86VX38 is an octal 1.544 Mbit/s or 2.048 Mbit/s DS1/E1/J1 universal integrated framer and LIU solution compliant to ANSI/ITU_T specifications. This framer/LIU combo provides many features for enhanced messaging and testability. The physical interface has Exar's optimized R(3) functionality providing reconfigurablility with a choice of internal impedance, and relayless hot swap protection with redundancy circuits. The framer function provides finer granularity to monitor DS-0 timeslots. The device also has performance enhancing features including increased buffering, and hardware based messaging support for bit-oriented or packet-oriented network messaging protocols.
Exar's R(3) Technology
Exar's R(3) Technology(TM) - Reconfigurable, Relayless Redundancy - delivers key benefits to OEMs designing T1/E1/J1 interface cards. The devices are Reconfigurable with integrated termination supporting all common T1/E1/J1 line impedances enabling customers to build one board with a single bill-of-materials. The devices employ Relayless Redundancy to eliminate the need for external relays in 1:1 and 1+1 configurations by establishing a back-up channel that can be brought on-line in the event of failure.
Pricing, Packages, Availability and Additional Information
Samples of the XRT83VL38 are available now. Offered in a RoHS compliant 255-pin BGA package over the -40°C to +85°C temperature range, the XRT83VL38 is priced at $18.08 in 1K piece quantities. Samples of the XRT86VX38 are available now. Offered in a RoHS compliant 256/329-pin BGA packages over the -40,ºC to +85,ºC temperature range, the XRT86VX38 is priced at $30.08 in 1K piece quantities. Additional information on the XRT83VL38, XRT86VX38 and other Communications products can be found at http://www.exar.com/Common/Content/Pr... .
About Exar
Exar Corporation delivers highly differentiated silicon, software and subsystem solutions for industrial, datacom and storage applications. For nearly 40 years, Exar's comprehensive knowledge of end-user markets along with the underlying analog, mixed signal and digital technology has enabled innovative solutions that meet the needs of the evolving connected world. Exar's product portfolio includes power management and interface components, communications products, storage optimization solutions, network security and applied service processors. Exar has locations worldwide providing real-time customer support to drive rapid product development. For more information about Exar, visit: http://www.exar.com/.
CONTACT: Greg Kaufman, Marketing Communications of Exar Corporation, +1-510-668-7000
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