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25 September 2007


First optical transceiver for broad wireless base-station market

Last week’s ECOC 2007 event in Berlin, Germany, saw Avago Technologies of San Jose, CA, USA announce what it claims is the industry’s first optical transceivers for the broad wireless base-station market.

Built specifically to support industrial-level temperature ranges and open standards for the base transceiver station (BTS) market, the AFBR-57J5APZ is part of the industry’s first family of optical transceivers for use in next-generation, wireless infrastructure networking equipment.

With high-speed serial links over multi-mode optical fiber at 3.072Gb/s (OBSAI/CPRI standard), the AFBR-57J5APZ operates at the industrial temperature range of -40°C to +85°C with link distances of 500m over OM3 grade fiber. Avago’s new product line for the base transceiver station market will include not only multi-mode but also single-mode optical transceivers that support distances up to 80km: the AFCT-57J5APZ (7km, SM, OBSAI/CPRI, 3.1G) and AFCT-57J5ATPZ (20km, SM, OBSAI/CPRI, 3.1G) will be available in October, and the AFCT-57xxxxxZ (40km/80km, SM, OBSAI/CPRI, 2.47G) by the end of 2007.

The new family of modules targets emerging OBSAI (open base-station architecture initiative) and CPRI (common public radio interface) standards for next-generation wireless base-station systems. “With W-CDMA, GSM, EDGE and WiMAX incorporating data-rich content, base-station system performance must improve,” says Dave D’Andrea, director of marketing for Avago’s fiber-optic products division. “OBSAI and CPRI standards address the need for cost-effective, higher-performance wireless base-station systems, and Avago’s new product line will provide system designers with the best cabling interconnect solution,” he claims.

Compared to the traditional copper cabling used in wireless base-stations, optical fiber supports longer link distances with higher data rates and a lower total cost of ownership, says Avago. At higher data rates, larger copper cables cause more difficulties in installation, maintenance, and upgradeability for base-station implementations compared to a lightweight optical fiber cable.

See related items:

Bookham plans full-band 10Gb/s long-reach tunable pluggable transceiver

First hot-swappable 10Gb/s tunable transceiver for DWDM

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