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Transceivers enable two channels of fibre-optic transmission

Posted: 17 Apr 2007     Print Version  Bookmark and Share

Keywords:SFP transceivers  small form factor transceiver  dual-channel optical transceiver 

NEC has announced the development of a family of dual-channel small form factor (SFF) and small form-factor pluggable (SFP) transceivers that enable two channels of bi-directional fibre-optic transmission, in a form factor that has traditionally been reserved for single-channel transmission. The new products leverate NEC's proprietary planar lightwave circuit (PLC) technology.

The compact SFP and SFF transceivers are said to be the first to offer two-channel bidirectional transmission in a package that adheres to the external mechanical requirements of the SFP and SFF standards. This development promises to contribute greatly to smaller-size and higher-density fibre-optic access equipment.

The SFP transceiver's dimensions, 56.5-by-13.8-by-8.5mm, make it the smallest dual-channel SFP optical transceiver in the industry, NEC claimed. It 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.

Meanwhile, the SFF transceiver was designed to offer bi-directional transmission in a package half the size of the industry-standard SFF package. Its dimensions are 49.5-by-7.3-by-9.8mm. The design is modular to enable easy configuration in 1-, 2- or 4-channel modules.

The products are compliant with the optical and electrical 100Base BX and 1000Base BX IEEE802.3ah specifications. These optical transceivers are also planned to be MSA-compliant in terms of dimensions, pin configuration, specifications and other details. NEC has been working out these details with Fujikura Ltd.

The transceivers are scheduled for release in June 2007.

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