Description of the FEC, AFEC and super modules

Which are the descriptions of the FEC, AFEC, and super modules?
FEC and AFEC are different encoding formats. The super board and non-super board distinguish in modulation formats. The AFEC and super modules are designed for increasing the transmission distance of the WDM device without a relay. Four combinations are used as follows:
1. Common FEC
2. Common FEC+super module
4. AFEC+super module
Signals of different modulation formats can be interconnected. Signals of different encoding formats cannot be interconnected.
That is, the super module and non-super OTU boards can be interconnected, but an OTU board encoded in FEC mode cannot be interconnected to an OTU board encoded in AFEC mode.

Scroll to top