IEEE 802.3cd-2018のTable 138-8。IEEE 802.3cm-2020ではClause 138.7.1が"Each lane of a 50GBASE-SR, 100GBASE-SR2 and 200GBASE-SR4 transmitter shall meet the specifications in Table 138-8 per the definitions in 138.8"から"Each lane of a 50GBASE-SR, 100GBASE-SR2, 200GBASE-SR4, and 400GBASE-SR8 transmitter shall meet the specifications in Table 138-8 per the definitions in 138.8"へ訂正されただけだ