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Juniper Networks QSFP+ 40GBase-SR4 40GIG Optics

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Item#: 31039645 // MFG Part#: QFX-QSFP-40G-SR4 // By: Juniper Networks
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Ordering Information
  • Ethernet 10GBase-SREthernet 40GBase-SREthernet 40GBASE-SR4 Transceiver
  • 40Gbps Transfer Rate
  • 40 Gigabit Ethernet Protocol(s)
  • GR-20-CORE, GR-326-CORE, IEEE 802.3ba, IEEE 802.3ae Compliant
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).
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