Classic Ethernet
Classic Ethernet is a generic term for the family of 10 Mbit/s Ethernet standards, which is the first generation of Ethernet standards. In 10BASE-X, the 10 represents its maximum throughput of 10 Mbit/s, BASE indicates its use of baseband transmission, and X indicates the type of medium used.
Fibre-based and other Ethernet Standards
| MMF FDDI 62,5/125 µm (1987) |
MMF OM1 62,5/125 µm (1989) |
MMF OM2 50/125 µm (1998) |
MMF OM3 50/125 µm (2003) |
MMF OM4 50/125 µm (2008) |
MMF OM5 50/125 µm (2016) |
SMF OS1 9/125 µm (1998) |
SMF OS2 9/125 µm (2000) |
|---|---|---|---|---|---|---|---|
| 160 MHz·km @850 nm |
200 MHz·km @850 nm |
500 MHz·km @850 nm |
1500 MHz·km @850 nm |
3500 MHz·km @850 nm |
3500 MHz·km @850 nm & 1850 MHz·km @950 nm |
1 dB/km @1300/ 1550 nm |
0.4 dB/km @1300/ 1550 nm |
| Name | Standard | Status | Media | OFC or RFC | Transceiver Module |
Reach in km |
# Media |
Lanes (⇅) |
Notes |
|---|---|---|---|---|---|---|---|---|---|
| Classic Ethernet - (Data rate: 10 Mbit/s - Line code: PE - Line rate: 20 MBd - Full-Duplex / Half-Duplex) | |||||||||
| 10BASE5 Thick Ethernet DIX Standard |
802.3-1983 (CL8) |
obsolete 09/2003 |
Coax RG-8X (50 Ω) |
AUI, N, Vampire tap |
MAU | 0.5 | 1 | 1 | LAN; original standard; electrical bus topology with collision detection; uses a single coaxial cable into which you literally tap a connection by drilling into the cable to connect to the core and screen. |
| 10BASE2 Thin Ethernet ThinNet Cheapernet |
802.3a-1988 (CL10) |
obsolete 09/2011 |
Coax RG-58 (50 Ω) |
BNC, EAD/TAE-E |
0.185 | 1 | 1 | LAN; dominant standard from the mid to late 1980s; electrical bus topology with collision detection; coaxial cable connects machines together, each machine using a T-connector to connect to its NIC. Requires terminators at each end. | |
| FOIRL | 802.3d-1987 (CL9.9) |
superseded | Fibre 850 nm |
ST | OF: 1 | 2 | 1 | original standard for Ethernet over fiber; uses any optical fiber with up to 4 dB/km attenuation and at least 150 MHz bandwidth; superseded by 10BASE-FL | |
| 10BASE -FL |
802.3j-1993 (CL15/18) |
largely obsolete |
Fibre 850 nm |
ST | FDDI: 2 | 2 | 1 | Nodes | |
| 10BASE -FB |
802.3j-1993 (CL15/17) |
largely obsolete |
Fibre 850 nm |
ST | FDDI: 2 | 2 | 1 | synchronous inter-repeater connections | |
| 10BASE -FP |
802.3j-1993 (CL15/16) |
obsolete | Fibre 850 nm |
ST | FDDI: 1 | 2 | 1 | passive, repeaterless star network; Market Failure, never implemented | |
10BASE-F
10BASE-F, or sometimes 10BASE-FX, is a generic term for the family of 10 Mbit/s Ethernet standards using fiber optic cable. In 10BASE-F, the 10 represents a maximum throughput of 10 Mbit/s, BASE indicates its use of baseband transmission, and F indicates that it relies on medium of fiber-optic cable. The technical standard requires two strands of 62.5/125 µm multimode fiber. One strand is used for data transmission while the other is used for reception, making 10BASE-F a full-duplex technology. There a three different variants of 10BASE-F: 10BASE-FL, 10BASE-FB and 10BASE-FP. Of these only 10BASE-FL experienced widespread use.[1] With the introduction later standards 10 Mbit/s technology has been largely replaced by faster Fast Ethernet, Gigabit Ethernet and 100 Gigabit Ethernet standards.
10BASE-FL
10BASE-FL is the most commonly used 10BASE-F specification of Ethernet over optical fiber. In 10BASE-FL, FL stands for fiber optic link. It replaces the original fiber-optic inter-repeater link (FOIRL) specification, but retains compatibility with FOIRL-based equipment. When mixed with FOIRL equipment, maximum segment length is limited to FOIRL's 1000 meters.[1]
10BASE-FB
The 10BASE-FB is a network segment used to bridge Ethernet hubs. Here FB abbreviates FiberBackbone. Due to the synchronous operation of 10BASE-FB, delays normally associated with Ethernet repeaters are reduced, thus allowing segment distances to be extended without compromising the collision detection mechanism. The maximum allowable segment length for 10BASE-FB is 2000 meters. This media system allowed multiple half-duplex Ethernet signal repeaters to be linked in series, exceeding the limit on the total number of repeaters that could be used in a given 10 Mbit/s Ethernet system. 10BASE-FB links were attached to synchronous signaling repeater hubs and used to link the hubs together in a half-duplex repeated backbone system that could span longer distances.[1]
FOIRL
Fiber-optic inter-repeater link (FOIRL) is a specification of Ethernet over optical fiber. It was especially designed as a back-to-back transport between repeater hubs as to decrease latency and collision detection time, thus increasing the possible network radius. It was replaced by 10BASE-FL.[1]
10BASE-FP
In 10BASE-FP, FP denotes Fibre Passive. This variant calls for a non-powered signal coupler to act as optical signal couplers capable of linking up to 33 devices, with each segment being up to 500 m in length. This formed a star-type network centered on the signal coupler. There are no devices known to have implemented this standard.[1][2]
10BASE-T
See: 10BASE-T