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List of early Ethernet standards#Varieties

{{short description|Early 10 Mbit/s Ethernet standards}}

{{Use American English|date=July 2020}}

The early generation of Ethernet standards had a maximum throughput of {{val|10|ul=Mbit/s}}. In 10BASE-X, the 10 represents its maximum throughput of {{val|10|u=Mbit/s}}, BASE indicates its use of baseband transmission, and X indicates the type of medium used. Classic Ethernet includes coax, twisted pair and optical variants. The first Ethernet standard was published in 1983 and classic Ethernet operating at {{val|10|u=Mbit/s}} was the dominant form of Ethernet until the first standard for Fast Ethernet was approved in 1995.{{cite web | url=https://standards.ieee.org/ieee/802.3u/1079/ |title=IEEE Standards for Local and Metropolitan Area Networks: Supplement - Media Access Control (MAC) Parameters, Physical Layer, Medium Attachment Units, and Repeater for 100 Mb/s Operation, Type 100BASE-T (Clauses 21-30) | publisher=IEEE Standards Association |access-date=2023-06-04}}

Varieties

class="wikitable" style="line-height:110%;"
Name

! Standard

! Status

! style="width: 170px;" | Media

! Connector

! Transceiver
Module

! Reach
in m

! #
{{tooltip|Media|Number of physical media (wires/fibres) needed for bidirectional traffic}}
(⇆)

! #
{{tooltip|Lambdas|Number of wavelengths used in each direction}}
(→)

! #
{{tooltip|Lanes|Number of lanes (on the wire/fibre) in each direction}}
(→)

! Notes

colspan="11" {{N/A|Classic coaxial Ethernet - (Data rate: 10 Mbit/s - Line code: PE - Line rate: 20 MBd - Full-Duplex / Half-Duplex)}}
{{nowrap|10BASE5}}
{{nowrap|Thick Ethernet}}
DIX Standard

| {{nowrap|802.3-1983}}
(CL8)

| {{N/A|obsolete
09/2003}}

| {{terminated|Coax
RG-8
(50 Ω)}}

| {{terminated|AUI,
N,
Vampire tap}}

| rowspan="2" align="right" | MAU

| style="text-align:right;" | 500

| style="text-align:right;" | 1

| style="text-align:right;" | N/A

| style="text-align:right;" | 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.

{{nowrap|10BASE2}}
{{nowrap|Thin Ethernet}}
ThinNet
Cheapernet

| {{nowrap|802.3a-1988}}
(CL10)

| {{N/A|obsolete
09/2011}}

| {{terminated|Coax
RG-58
(50 Ω)}}

| {{terminated|BNC,
EAD/TAE-E}}

| style="text-align:right;" | 185

| style="text-align:right;" | 1

| style="text-align:right;" | N/A

| style="text-align:right;" | 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.

colspan="11" {{N/A|Classic fibre Ethernet - (Data rate: 10 Mbit/s - Line code: PE - Line rate: 20 MBd - Full-Duplex / Half-Duplex)}}
{{nowrap|FOIRL}}

| {{nowrap|802.3d-1987}}
(CL9.9)

| {{N/A|superseded}}

| {{CGuest|Fibre
{{fontcolour|red|850 nm}}}}

| {{CGuest|ST}}

| rowspan="4" align="right" | MAU

| {{nowrap|OF: 1k}}

| style="text-align:right;" | 2

| style="text-align:right;" | 1

| style="text-align:right;" | 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

{{nowrap|10BASE-FL}}

| {{nowrap|802.3j-1993}}
(CL15/18)

| {{N/A|largely
obsolete}}

| {{CGuest|Fibre
{{fontcolour|red|850 nm}}}}

| {{CGuest|ST}}

| style="background-color:orange" | {{nowrap|FDDI: 2k}}

| style="text-align:right;" | 2

| style="text-align:right;" | 1

| style="text-align:right;" | 1

| Nodes

{{nowrap|10BASE-FB}}

| {{nowrap|802.3j-1993}}
(CL15/17)

| {{N/A|largely
obsolete}}

| {{CGuest|Fibre
{{fontcolour|red|850 nm}}}}

| {{CGuest|ST}}

| style="background-color:orange" | {{nowrap|FDDI: 2k}}

| style="text-align:right;" | 2

| style="text-align:right;" | 1

| style="text-align:right;" | 1

| synchronous inter-repeater connections

{{nowrap|10BASE-FP}}

| {{nowrap|802.3j-1993}}
(CL15/16)

| {{N/A|obsolete}}

| {{CGuest|Fibre
{{fontcolour|red|850 nm}}}}

| {{CGuest|ST}}

| style="background-color:orange" | {{nowrap|FDDI: 1k}}

| style="text-align:right;" | 2

| style="text-align:right;" | 1

| style="text-align:right;" | 1

| {{N/A|passive, repeaterless star network;
{{fontcolour|red|Market Failure, never implemented}}}}

Fibre-based standards (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 a 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 are three different variants of 10BASE-F: 10BASE-FL, 10BASE-FB and 10BASE-FP. Of these only 10BASE-FL experienced widespread use.{{cite book |title=Ethernet: The Definitive Guide |edition=2nd |author=Charles E. Spurgeon |publisher=O'Reilly Media |year=2014 |isbn=978-1-4493-6184-6}} With the introduction of later standards 10 Mbit/s technology has been largely replaced by faster Fast Ethernet, Gigabit Ethernet and 100 Gigabit Ethernet standards.

= FOIRL =

Fiber-optic inter-repeater link (FOIRL) is a specification of Ethernet over optical fiber. It was specially designed as a back-to-back transport between repeater hubs to decrease latency and collision detection time, thus increasing the possible network radius. It was replaced by 10BASE-FL.

= 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, the maximum segment length is limited to FOIRL's 1000 meters.

= 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.

= 10BASE-FP =

In 10BASE-FP, FP denotes fibre passive. This variant calls for a non-powered optical signal coupler capable of linking up to 33 devices, with each segment being up to 500 m in length. This formed a star network centered on the signal coupler. A LAN implementing this standard was applied as a branch LAN to construct an all-optical fiber hierarchical integrated LAN with a high-speed LAN (FDDI, etc.) as the backbone.{{cite journal |last1=Parker |first1=Tim |title=Obscure standard may make you flip for fibre |journal=ProQuest Computer Science Journals |volume=13 |issue=11 |date=2000-07-10 |publisher=Rogers Publishing Limited|id={{ProQuest|274984076}} }}

See also

References

{{reflist}}

{{Ethernet}}

Category:Ethernet standards