Hello everyone,
Today, we will introduce the differences between 8-, 12-, and 24-strand MPO fibers and which model of CE series switches is more suitable.
MPO fibers are used for 40G and 100G optical modules. An MPO fiber consists of multiple multi-mode fiber strands, and each multi-mode fiber strand provides one laser transmission channel.
Some fiber suppliers produce 8-strand MPO optical fibers, while some suppliers produce 12-strand or 24-strand MPO fibers.
A 40GE optical module uses four channels to transmit laser and four channels to receive laser. That is, a total of eight channels are required for a 40GE optical module.
8-strand and 12-strand MPO fibers use the same definition of fiber channels. Therefore, they are equivalent in functionality when connecting to 40GE optical modules.
Choose 8-strand or 12-strand fibers for QSFP28 modules. The following figure shows the strand distribution of the optical module.

When 100G optical modules are used, choose MPO fibers according to the form factor.
Choose 24-strand fibers for CXP, CFP, and CFP2 modules.

That is all I want to share with you! Thank you!
