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NEC Develops Dual Density Bidirectional Optical Transceiver Product Family
~Two-channel bidirectional transmission in a one-channel footprint~

*****For immediate use March 14, 2007

NEC has completed the development of a family of compact dual-channel SFF and SFP transceivers that enable two channels of bi-directional fiber-optic transmission (*1) in a form factor, which has traditionally been reserved for single-channel transmission. The new products were enabled by leveraging NEC's proprietary planar lightwave circuit (PLC) technology and expertise. The compact SFP and SFF products are the first to offer two-channel bidirectional transmission in a package that adheres to the external mechanical requirements of the SFP (*2) and SFF (*3) standards. This development promises to contribute greatly to smaller-size and higher-density fiber-optic access equipment.

In recent years, demand for FTTx (*4) equipment has risen sharply. With this increase in demand, the number of optical transceivers deployed in access equipment has also increased dramatically. A typical FTTx application today might require as many transceivers as there are subscribers. In recent years, there has been a loud cry for a reduction in the size of optical transceivers, so that a reduction in the over-all size of the access equipment can be realized. NEC has met this challenge head-on with the development of two new products – the compact SFP and the compact SFF optical transceivers.

These newly developed optical transceivers are planning to be MSA compliant in dimensions, pin configuration, specifications, and other details; all of which are currently being worked out with Fujikura Ltd. The new products are scheduled for release in June 2007, with a sales target of 300 million yen for the coming fiscal year.

New Product Features

1. World's Smallest
The compact SFP's dimensions (56.5 x 13.8 x 8.5 mm (H x W x D)) make it the smallest dual-channel SFP optical transceiver in the industry.
  The compact SFF was designed to offer bidirectional transmission in a package half the size (49.5 x 7.3 x 9.8 mm (H x W x D)) of the industry standard SFF package. The design is modular to enable easy configuration in 1, 2 or 4 channel modules.
2. Compliant with Industry Standards
The products are compliant with the optical and electrical 100Base BX and 1000Base BX IEEE802.3ah specifications recommended by The Institute of Electrical and Electronics Engineers, Inc.
3. Standard SFP Cage and Connector
NEC's dual-channel bi-directional SFP transceiver has the same mechanical dimensions as the industry standard SFP and is compatible with the standard SFP cage. The product is also compatible with the standard 20 pin SFP connector.

NEC's Leadership in PLC-Based Transceivers
NEC has been developing and producing optical transceiver products utilizing PLC technology since 1992. During this period NEC has amassed extensive hands-on knowledge of the design and large scale manufacturing of PLC-based transceiver products. This exciting new product family has been achieved through the integration of industry-leading PLC expertise with precision fabrication techniques and advanced IC technology.

NEC will continue to leverage world-class PLC optical module expertise to develop innovative, breakthrough products. The dual-channel bi-directional transceiver products will be on display at the NEC Fiber Optech Inc. booth at the Optical Fiber Communication Conference and Exposition (OFC 2007) being held in Anaheim, California, on March 27, 2007.

About NEC Corporation
NEC Corporation (NASDAQ: NIPNY) is one of the world's leading providers of Internet, broadband network and enterprise business solutions dedicated to meeting the specialized needs of its diverse and global base of customers. NEC delivers tailored solutions in the key fields of computer, networking and electron devices, by integrating its technical strengths in IT and Networks, and by providing advanced semiconductor solutions through NEC Electronics Corporation. The NEC Group employs more than 150,000 people worldwide.
For additional information, please visit the NEC home page at:
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(*1) A module for bidirectional transmission over a single fiber-optic cable
(*2) SFP: Small Form-factor Pluggable (SFP); an industry specification for extractable optical modules
(*3) SFF: Small Form Factor; an industry specification for optical modules
(*4) FTTx: Fiber To The x; architectures that use optical fiber for transmission to the end user.

Press Contact

Takehiko Kato (Japan)
NEC Corporation
TEL: +81 3 3798 6511

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