Is there any document describing the NCS 2000 400G card PRE FEC rate ?????   In 200G card data sheet both pre-FEC and post-FEC is mentioned but in the 400G card, only post-FEC is mentioned.

Is there any document describing the NCS 2000 400G card PRE FEC rate ?????   In 200G card data sheet both pre-FEC and post-FEC is mentioned but in 400G card only post-fec is mentioned.