1000BaseT, also known as 1000Base-T, is a physical layer standard that supports data transfer rates up to 1000 Mbps (1 Gbps) over twisted pair cables up to 100m. The 1000BASE-T standard is defined in the IEEE 802.3ab. Like Ethernet, 1000BaseT is based on the CSMA/CD LAN access method.
Reference Document: IEEE 802.3ab
1000BaseX identifies various Gigabit Ethernet physical layer standards as defined in IEEE802.3z, such as 1000BaseLX, 1000BaseSX, 1000BaseCX and 1000BaseLH. Basically, all standards included in 1000BaseX uses 8B/10B coding scheme with 8 bits of data and 2 bits of error-correction data. Each specification allows various cable (fiber or copper) lengthes, and uses different cable media.
Reference Document: IEEE 802.3z
1000BaseZX (or 1000Base-ZX) is a Cisco specified standard for gigabit Ehternet communication. 1000BaseZX operates on ordinary single-mode fiber-optic link spans up to 43.5 miles (70 km). Link spans up to 62.1 miles (100 km) are possible using premium single-mode fiber or dispersion-shifted single-mode fiber. 1000BaseZX uses a long wavelength laser (1550 nm). The 1000BASEZX GBIC is intended to be used as a Physical Medium Dependent (PMD) component for Gigabit Ethernet interfaces found on various switch and router products. It operates at a signaling rate of 1250 Mbaud, transmitting and receiving 8B/10B encoded data.
Standard Organization: Cisco
100BaseFX, also known as 100Base-FX, is a 100-Mbps baseband Fast Ethernet specification. 100BaseFX, a part of 100BaseX defined in the IEEE 802.3 standard, uses 4B/5B block encoding for Fast Ethernet over fiber-optic cabling. The fiber distance that the 100BaseFX can support is: 412m half duplex on Multi Mode fiber, 2km full duplex on Multi Mode fiber, and 15-20km full duplex on Single Mode fiber.
Standard Organization: IEEE
Reference Document: IEEE 802.3
100BaseT, also known as 100Base-T or fast Ethernet, is a physical layer standard that supports data transfer rates up to 100 Mbps (100 megabits per second). 100BASE-T is based on Manchester signal encoding transmitted over Category 3 or better twisted-pair cable. The 100BASE-T standard is defined in the IEEE 802.3u. Like Ethernet, 100BaseT is based on the CSMA/CD LAN access method.
Standard Organization: IEEE
Reference Document: IEEE 802.3u
100BaseT4, also known as 100Base-T4, is a 100-Mbps baseband Fast Ethernet specification using four pairs of Category 3, 4, or 5UTP wiring. To guarantee proper signal timing and quality, a 100BaseT4 segment cannot exceed 100 meters in length. 100BaseT4 is part of the IEEE 802.3 standard.
Standard Organization: IEEE
Reference Document: IEEE 802.3
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