엑사통신

400GBASE-SR16  과 MPO(MTP) 커넥터 및 배열방법

개발배경

• 400G Ethernet (1st generation) is likely to use a 16 lane 25 Gb/s electrical interface (in each direction).
 – 16x25G most favoured electrical interface in a straw poll at 29th April 2014 Ethernet Alliance 400Gb/s Subcommittee meeting.

 • Lowest cost, lowest power, PMDs tend to have a 1:1 mapping of electrical lanes to optical lane.

 • Low initial volume for 400G MMF modules, probably dominated by breakout applications.

 • 2x16 fibre connector: physical contact and expanded beam ferrules are in development.

–Is extension of existing technology*  → low risk, easy spec creation
–Supports breakout to 4x 100G-SR4  → broad market potential

•MPO-16 standardization and development

–Progressing at pace suitable for P802.3bs

•Proposed lane assignment

–Is directly compatible with emerging MPO-16 standard
–Can be supported on legacy structured cabling without violating signal routing conventions or replacing permanent link cabling
–Can be easily supported on modulo-16 cabling
–Will drive modulo-16 cabling development → better solution

16X2 MPO(MTP)

Polarity Types;