Easyway to Learn Protocol -Glossary Part-II

1000BaseCX or 1000Base-CX

1000BaseCX, also known as 1000Base-CX, is a physical layer specification for Gigabit Ethernet transmission over a special balanced 150 ohm cable shorter than 25m. This cable is a type of shielded cable. In order to minimize safety and interference concerns caused by voltage difference, both transmitters and receivers will share a common ground. The return loss for each connector is limited to 20db to minimize transmission distortions. The connector type for 1000Base-CX will be a DB-9 connector or HSSDC. 

Reference Document: IEEE 802.3z

1000BaseF or 1000Base-F

1000BaseF, also known as 1000Base-F, is a physical layer baseband specification for Ethernet communications over optical fibers. 1000Base-F uses 8B/10B ANSI X3T11 Fibre Channel FC-1 frame encoding, serializer/deserializer (SERDES) and NRZ on the fiber, clocked at 1250 Mbaud. 1000BaseF can support a fiber cable length of 500m full duplex on multimode fiber fiber, and of 2-3km full duplex on single mode fiber.

Reference Document: IEEE 802.3z

1000BaseLH or 1000Base-LH

1000BaseLH, also known as 1000Base-LH, is a physical layer specification for Gigabit Ethernet over fiber optic cabling as defined in IEEE 802.3z. LH stands for long haul, and 1000Base-LH uses long wavelength laser (1310nm) over multimode and single-mode fiber. 1000BaseLH can support a maximum distance of 550m for multimode fiber, and of 10km for single mode fiber. 

Reference Document: IEEE 802.3z

1000BaseLX or 1000Base-LX

1000BaseLX, also known as 1000Base-LX, is a physical layer specification for Gigabit Ethernet over fiber optic cabling as defined in IEEE 802.3z. LX stands for long wavelength, and 1000Base-LX uses long wavelength laser (1310nm) over multimode and single-mode fiber as opposed to 1000Base-SX, which uses short wavelength laser over multimode fiber. The maximum distance of fiber is 550m for multi mode and 5km for single mode. 

Reference Document: IEEE 802.3z

1000BaseSX or 1000Base-SX

1000BaseSX, also known as 1000Base-SX, is a physical layer specification for Gigabit Ethernet over fiber optic cabling as defined in IEEE 802.3z. SX stands for short wavelength, and 1000Base-SX uses short wavelength laser (850nm) over multimode fiber as opposed to 1000Base-LX, which uses long wavelength laser over both multimode and single mode fiber. The maximum distance of (multimode) fiber, based on 1000BaseSX, is 550m. 

Reference Document: IEEE 802.3z