TE Connectivity's second generation of Paralight QSFP+ was designed with internally terminated
optics and eliminates the need to clean an optical connector. The cables'
passively cooled, environmentally-friendly design have a low thermal resistance
path from the chip to the connector shell. The Paralight QSFP+ active optical
cables have a lightweight design, diameter of 3.0 mm and tight bend radius.
This second generation of cables includes
four transmit and four receive channels at 10 Gbps per channel for InfiniBand
standard SDR, DDR and QDR applications. With 850 nm VCSEL technology, the cable
assemblies operate over a data rate of 2.5 to 10 Gbps per lane with an
aggregate data rate of 40 Gbps. The cables incorporate electrical-optical and
optical-electrical conversion that is built into the connector shell for
improvement in PCB real estate utilization.
The cable assemblies are available in
lengths up to 100 m using 50 micron fiber, longer lengths are available upon
request. The EOE circuitry is designed for use with 8B/10B encoded data streams
such as InfiniBand, Fibre Channel and XAUI. The QSFP connector style supports
connections for an I2C-serial interface, which can be used to identify the
product and performance capabilities.
Product applications include high-speed
interconnects within and between switches and transport equipment,
server-server clusters, super-computing interconnections, and rack-to-rack,
shelf-to-shelf, board-to-board and board-to-optical backplane interconnections.
The active optical cables meet the differential I/O per InifiniBand version
A bold, gold, open-air coupe may not be the ticket to automotive nirvana for every consumer, but Lexus’ LF-C2 concept car certainly turned heads at the recent Los Angeles Auto Show. What’s more, it may provide a glimpse of the luxury automaker’s future.
The complexity of diesel engines means optimizing their performance requires a large amount of experimentation. Computational fluid dynamics (CFD) is a very useful and intuitive tool in this, and cold flow analysis using CFD is an ideal approach to study the flow characteristics without going into the details of chemical reactions occurring during the combustion.
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