Cisco Cisco 40 Gigabit Modules 入门指南

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Cisco’s innovative 40-Gbps Quad Small Form-Factor Pluggable (QSFP) 
bidirectional (BiDi) transceiver is a pluggable optical transceiver with 
a duplex LC connector interface for short-reach data communication 
and interconnect applications. By using the existing 10 Gigabit Ethernet 
duplex MMF fiber infrastructure for 40 Gigabit Ethernet, the Cisco BiDi 
transceiver offers significant cost savings and simplifies data center 
upgrading.
The Cisco BiDi transceiver supports link lengths of 100m and 150m on 
laser-optimized OM3 and OM4 multimode fibers. It complies with the 
QSFP MSA specification, enabling customers to use it on all QSFP 40-
Gbps platforms to achieve high-density 40 Gigabit Ethernet networks. 
Use Your Existing 10 Gigabit Ethernet Fiber for 40 Gigabit 
Ethernet
Whether your cable plant is structured or unstructured, Cisco’s BiDi 
transceiver delivers significant savings and a smooth migration to  
40 Gigabit Ethernet. The Cisco BiDi transceiver enables the use of an 
existing 10 Gigabit Ethernet fiber plant infrastructure for 40 Gigabit 
Ethernet, delivering four times the bandwidth over the same fiber plant 
and up to 70% savings over other current solutions.
For building out new data centers, deploying 40 Gigabit Ethernet for 
aggregation and core is no longer an option but a requirement to meet 
today’s data demands. Designing new cable plants using Cisco’s BiDi 
transceivers offers:
•  75% less fiber and MPO requirements 
•  Reduced cable sprawl and rack footprints
•  Cost savings with the industry’s lowest-priced 40 Gigabit Ethernet 
transceiver 
•  Investment protection with future support for 100 Gbps over duplex 
fiber
Designing your new fiber cable plant with Cisco’s 40 Gigabit Ethernet 
BiDi transceiver allows you to reduce your fiber requirements and 
CapEx and OpEx while future proofing your data center for 100 Gigabit 
Ethernet. 
Cisco’s QSFP 40 Gigabit Ethernet BiDi technology removes  
40-Gbps cabling cost barriers for migration from 10-Gbps to 40-Gbps 
connectivity in data center networks. Cisco’s BiDi transceivers provide 
simpler and less expensive 40-Gbps connectivity compared to other 
40-Gbps transceiver solutions. The Cisco QSFP BiDi transceiver allows 
organizations to migrate their existing 10-Gbps cabling infrastructure to 
40 Gbps with little capital investment.
At-A-Glance
At-A-Glance
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Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/
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does not imply a partnership relationship between Cisco and any other company. (1110R) 
C45-732908-00  10/14
Next Steps 
For more information about the 
savings provided by Cisco BiDi 
transceivers, see the sample case 
studies at