Техническая Спецификация для Cisco Cisco DWDM Transceiver Modules
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Cisco QSFP-40G-BD-RX
The Cisco QSFP 40-Gbps BiDi monitor is a pluggable optical module for use with link monitor hardware, such as
the Cisco Nexus
®
Data Broker. Like the QSFP BiDi transceiver, it has a duplex MMF LC connector interface. The
QSFP BiDi monitor is used only in the monitoring path of a link containing a passive optical tap splitter. The Cisco
QSFP monitor offers the same specifications as the QSFP BiDi Transceiver, except that it does not transmit any
signal, and thus eliminates the risk of interfering with the live BiDi link path.
Cisco QSFP-40G-SR4
The Cisco 40GBASE-SR4 QSFP Modules support link lengths of 100 meters and 150 meters, respectively, on
laser-optimized OM3 and OM4 multimode fibers. It primarily enables high-bandwidth 40G optical links over 12-fiber
parallel fiber terminated with MPO/MTP multifiber female connectors. It can also be used in a 4x10G mode for
interoperability with 10GBASE-SR interfaces up to 100 and 150 meters on OM3 and OM4 fibers, respectively. The
worry-free 4x10G mode operation is enabled by the optimization of the transmit and receive optical characteristics
of the Cisco QSFP-40G-SR4 to prevent receiver overload or unnecessary triggering of alarm thresholds on the
10GBASE-SR receiver, and at the same time is completely interoperable with all standard 40GBASE-SR4
interfaces.
The 4x10G connectivity is achieved using an external 12-fiber parallel to 2-fiber duplex breakout cable, which
connects the 40GBASE-SR4 module to four 10GBASE-SR optical interfaces. Cisco QSFP-40G-SR4 is optimized
to guarantee interoperability with any IEEE 40GBase-SR4 and 10GBase-SR (in 4x10G mode).
Cisco FET-40G
Cisco FET-40G QSFP Modules are fabric-extender transceiver modules used to connect to fabric links (links
between the fabric extender switch and the parent switch). The interconnect works over parallel multimode fiber
across distances of up to 100 and 150 meters, respectively, on laser-optimized OM3 and OM4 multimode fiber
cables. This module can be used for native 40G optical links over 12-fiber ribbon cables with MPO/MTP connectors
or in 4x10G mode with parallel-to-duplex fiber breakout cables for connectivity to four FET-10G interfaces.
Cisco QSFP-40G-CSR4
Cisco 40GBASE-CSR4 QSFP Modules extend the reach of the IEEE 40GBASE-SR4 interface to 300 and 400
meters on laser-optimized OM3 and OM4 multimode parallel fiber, respectively. Each 10-gigabit lane of this
module is compliant to IEEE 10GBASE-SR specifications. This module can be used for native 40G optical links
over 12-fiber parallel cables with MPO/MTP female connectors or in a 4x10G mode with parallel to duplex fiber
breakout cables for connectivity to four 10GBASE-SR interfaces. Cisco QSFP-40G-CSR4 is optimized to
guarantee interoperability over the complete specification range of 10GBASE-SR.
Cisco QSFP-40G-LR4
The Cisco 40GBASE-LR4 QSFP module supports link lengths of up to 10 kilometers over a standard pair of G.652
single-mode fiber with duplex LC connectors. The 40 Gigabit Ethernet signal is carried over four wavelengths.
Multiplexing and demultiplexing of the four wavelengths are managed within the device.