Micro QSFP 는 기존의 QSFP 보다 크기를 33% 줄여 기존의 SFP 사이즈로 개발되고
있습니다.
Micro QSFP subject of new optical transceiver MSA.
microQSFP MSA offers first datacom optical transceiver specifications
The micro Quad Small Form-Factor Pluggable (microQSFP)
Multi-Source Agreement (MSA) has released draft mechanical specifications of the
microQSFP optical module and cage. The group says the specs are now ready for
system designers, optical transceiver makers, and copper cable assembly
providers to use to create interfaces smaller than the current QSFP
format.
The hot-pluggable input/output (I/O) connector system features four
electrical channels that support both direct attach copper cable
assemblies and optical modules. Because it has the same
width of single-channel SFP interfaces, the microQSFP can support 33% higher
density than QSFP connector systems. The new form factor also features
integrated thermal management that surpasses the QSFP connectors and cages as
well, the group says.
Modules based on the microQSFP specifications can support one, two, or four-channel operation. Each
channel can be up to 28 Gbps, although group members foresee designs that
support 50 Gbps per channel via PAM4 modulation. Thanks to the
faceplate density the interface's small size will support, the group members
estimate that, at 25 Gbps per channel, a 1RU line card fully populated with 72
microQSFP modules will support 7.2 Tbps in total.
"Networking hardware trends are moving to ever higher density interconnects
and higher data rates," said Dale Murray, principal analyst with LightCounting
Market Research. "Coupled with higher-capacity switching silicon, this results
in a need for next-generation connector systems such as microQSFP that provide
more throughput while also addressing the thermal challenge in new
ways."
Founding Promoter members of the MSA include Broadcom, Brocade,
Cisco, Dell, Foxconn Interconnect Technology, Huawei, Intel, Juniper Networks,
Lumentum, Microsoft, Molex, and TE Connectivity. The group first announced its
intentions last August, with TE among the primary catalysts for the MSA's
formation (see "TE Connectivity seeks partners for new 100G optical transceiver
MSA" and "Micro QSFP subject of new optical transceiver MSA").
Further information on the MSA can be found on the group's website.
