IEEE Std 802.3cn-2019 pdf download – lEEE Standard for Ethernet Amendment 4: Physical Layers and Management Parameters for 50 Gb/s, 200 Gb/s, and 400 Gb/s Operation over Single-Mode Fiber.
45.2.1.20.1a 200GBASE-ER4 ability (1.23.6) When read as a one, bit 1.23.6 indicates that the PMA/PMD is able to operate as a 200GBASE-ER4 PMA/PMD type. When read as a zero, bit 1.23.6 indicates that the PMA/PMD is not able to operate as a 200GBASE- ER4 PMA/PMD type. Insert the following new subclauses (45.2.1. 20.5, 45.2. 1.20.6, and 45.2.1.20. 7) after 45.2.1.20.4: 45.2.1 .20.5 200GBASE-SR4 ability (1.23.2) When read as a one, bit 1 .23.2 indicates that the PMA/PMD is able to operate as a 200GBASE-SR4 PMA/PMD type. When read as a zero, bit 1.23.2 indicates that the PMA/PMD is not able to operate as a 200GBASE-SR4 PMA/PMD type. 45.2.1.20.6 200GBASE-CR4 ability (1.23.1) When read as a one, bit 1 .23.1 indicates that the PMA/PMD is able to operate as a 200GBASE-CR4 PMA/PMD type. When read as a zero, bit 1.23.1 indicates that the PMA/PMD is not able to operate as a 200GBASE-CR4 PMA/PMD type. 45.2.1.20.7 200GBASE-KR4 ability (1.23.0) When read as a one, bit 1.23.0 indicates that the PMA/PMD is able to operate as a 200GBASE-KR4 PMA/PMD type. When read as a zero, bit 1.23.0 indicates that the PMA/PMD is not able to operate as a 200GBASE-KR4 PMA/PMD type. .
45.2.1.21b.1 100GBASE-SR2 ability (1.26.9) When read as a one, bit 1.26.9 indicates that the PMA/PMD is able to operate as a 1 00GBASE-SR2 PMA/PMD type. When read as a zero, bit 1.26.9 indicates that the PMA/PMD is not able to operate as a 100GBASE-SR2 PMA/PMD type. 45.2.1.21b.2 100GBASE-CR2 ability (1.26.8) When read as a one, bit 1 .26.8 indicates that the PMA/PMD is able to operate as a 100GBASE-CR2 PMA/PMD type. When read as a zero, bit 1 .26.8 indicates that the PMA/PMD is not able to operate as a 100GBASE-CR2 PMAPMD type. 45.2.1.21b.3 100GBASE-KR2 ability (1.26.7) When read as a one, bit 1 .26.7 indicates that the PMA/PMD is able to operate as a 100GBASE-KR2 PMA/PMD type. When read as a zero, bit I .26.7 indicates that the PMA/PMD is not able to operate as a . 100GBASE-KR2 PMA/PMD type. 45.2.1.21b.4 100GBASE-DR ability (1.26.3) When read as a one, bit 1 .26.3 indicates that the PMA/PMD is able to operate as a 100GBASE-DR PMA/PMD type. When read as a zero, bit 1.26.3 indicates that the PMA/PMD is not able to operate as a 100GBASE-DR PMA/PMD type.