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- COBO modules supports 400-gigabit and 800-gigabit data rates
- Two electrical interfaces have been specified: 8 and 16 lanes of 50-gigabit PAM-4 signals.
- There are three module classes to support designs ranging from client-slide multi-mode to line-side coherent optics.
- COBO on-board optics will be able to support 800 gigabits and 1.6 terabits once 100-gigabit PAM-4 electrical signals are specified.
Source: COBO
Interoperable on-board optics has moved a step closer with the publication of the industry’s first specification by the Consortium for On-Board Optics (COBO).
COBO has specified modules capable of 400-gigabits and 800-gigabits rates. The designs will also support 800-gigabit and 1.6-terabit rates with the advent of 100-gigabit single-lane electrical signals.
“Four hundred gigabits can be solved using pluggable optics,” says Brad Booth, chair of COBO and principal network architect for Microsoft’s Azure Infrastructure. “But if I have to solve 1.6 terabits in a module, there is nothing out there but COBO, and we are ready.”
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