QSFP+ AOC (Active Optical Cables) are conceptually two QSFP+ optical transceivers with a fiber optic cable permanently embedded into each end (the fiber cable cannot be removed). This results in a “ready to use” cable assembly, similar to passive Direct Attach Copper (DAC) cables, but with the benefit of internal active electronics to manage the host electrical interface and a longer reach, lighter weight cable.
The QFP+ (Quad Small Form Pluggable Plus) transceiver form factor was established to enable multi-lane (quad) optical transceivers, such as 40GbE, with a variety of optical connectors (such as 4+4 MPO and duplex LC). An earlier (original) QSFP MSA had been established in 2006 for 1Gb/s to 4 Gb/s per channel operating rates, such as 4x2.5Gbps SDR Infiniband and 4x3.125 Gbps XAUI based Ethernet transceivers. QSFP+ was developed in 2010 to support 10Gb/s to 16Gb/s per lane electrical interfaces associated with 40Gb/s Ethernet and QDR/FDR Infiniband. The QSFP+ form factor is publicly defined by SFF Committee specification SFF-8436.
For the later developed 25Gb/s to 28Gb/s per lane generation of QSFPs (such as 100Gb/s Ethernet), newer transceiver, connector and cage specifications were established under a new name, called QSFP28. These transceivers are listed under the QSFP28 designation.
|Part Number||Data Sheet||Form Factor||Max Data Rate (Gbps)||Maximum Distance (m)||Connector Type||Fiber Type||Nominal Optical Wavelength (nm)||Lifecycle|
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