Physical

Ethernet Physical Layer

Ethernet Bodily Layer

Bodily layers

Xerox experimental Ethernet

Identify

Description

Xerox Ethernet

The unique, three Mbit/s Ethernet implementation, which had a body layout other from the manufacturing kinds of Ethernet.

Early implementations (10 Mbit/s and 1 Mbit/s)

Identify

Same old

Description

10BASE5

802.three (eight)

10 Mbit/s, Manchester coded signaling, copper RG-8X (pricey) coaxial cabling, bus topology with collision detection (aka Thick Ethernet)

10BASE2

802.three (10)

10 Mbit/s, Manchester coded signaling, copper RG-fifty eight (reasonable) coaxial cabling, bus topology with collision detection (aka Skinny Ethernet)

10BROAD36

802.three (eleven)

10 Mbit/s, scrambled NRZ signaling modulated (PSK) over top frequency service, large bandwidth coaxial cabling, bus topology with collision detection

1BASE5

802.three (12)

1 Mbit/s, Manchester coded signaling, copper twisted pair cabling, celebrity topology

StarLAN 10

Proprietary

10 Mbit/s, Manchester coded signaling, copper twisted pair cabling, celebrity topology – advanced into 10BASE-T

LattisNet UTP

Proprietary

10 Mbit/s, Manchester coded signaling, copper twisted pair cabling, superstar topology – advanced into 10BASE-T

10BASE-T

802.three (14)

10 Mbit/s, Manchester coded signaling, copper twisted pair cabling, superstar topology – direct evolution of 1BASE-five

FOIRL

802.three (nine.nine)

Fiber-optic inter-repeater hyperlink; the unique same old for Ethernet over fiber

10BASE-F

802.three (15)

— A usual time period for the circle of relatives of 10 Mbit/s Ethernet requirements the use of fiber optic cable: 10BASE-FL, 10BASE-FB and 10BASE-FP. Of those handiest 10BASE-FL is in well-liked use. 10 Mbit/s, Manchester coded signaling, fiber pair

10BASE-FL

802.three (15&18;)

an up to date model of the FOIRL same old

10BASE-FB

802.three (15&17;)

meant for backbones connecting a lot of hubs or switches; it’s now out of date

10BASE-FP

802.three (15&sixteen;)

a passive celebrity community that required no repeater, it used to be by no means carried out

Rapid Ethernet (one hundred Mbit/s)

For extra main points in this matter, see Rapid Ethernet.

Identify

Same old

Description

100BASE-T

802.three (21)

A time period for any of the 4 requirements for one hundred Mbit/s Ethernet, both over twisted pair cable as much as one hundred meters lengthy or fiber (unusually sufficient. The terminology for the circle of relatives used to be used as a result of the massive marketplace acclaim for 10BASE-T). Comprises 100BASE-TX, 100BASE-FX, 100BASE-T4 and 100BASE-T2. They all use a celebrity topology.

100BASE-TX

802.three (24)

4B5B MLT-three coded signaling, CAT5 copper cabling with twisted pairs.

100BASE-T4

802.three (23)

8B6T PAM-three coded signaling, CAT3 copper cabling (as used for 10BASE-T installations) with 4 twisted pairs (makes use of all 4 pairs within the cable). Now out of date, as Cat-five cabling is the norm. Restricted to part-duplex.

100BASE-T2

802.three (32)

No merchandise exist. PAM-five coded signaling, CAT3 copper cabling with twisted pairs, superstar topology. Helps complete-duplex. It’s functionally identical to 100BASE-TX, however helps antique phone cable. On the other hand, unique refined virtual sign processors are required to deal with encoding schemes required, making this feature moderately pricey on the time. It arrived smartly after 100BASE-TX used to be based out there. the generation evolved for 100BASE-T2 used to be the root for 1000BASE-T.

100BASE-FX

802.three (24)

4B5B NRZI coded signaling, strands of multi-mode optical fiber. Most duration is four hundred meters for part-duplex connections (to make sure collisions are detected) or 2 kilometers for complete-duplex.

100BASE-SX

TIA

one hundred Mbit/s Ethernet over multi-mode fiber. Most duration is three hundred meters. 100BASE-SX used brief wave duration (850 nm) optics that used to be sharable with 10BASE-FL, therefore making it imaginable to have an vehicle-negotiation scheme and feature 10/one hundred fiber adapters.

100BASE-BX10

Proprietary

one hundred Mbit/s Ethernet bidirectionally over a unmarried strand of unmarried-mode optical fiber. A multiplexer is used to separate transmit and obtain signs into other wavelengths permitting them to percentage the similar fiber. Helps as much as 10 km.

100BASE-LX10

Proprietary

one hundred Mbit/s Ethernet as much as 10 km over a couple of Unmarried Mode Fibers.

100Base-VG

802.12

Standardized by way of a special IEEE 802 subgroup, 802.12, as it used a special, extra centralized type of media get right of entry to (“Call for Precedence”). Championed through handiest HP, 100VG-AnyLAN (as used to be the promoting identify) used to be the earliest out there. It wanted 4 pairs in a Cat-three cable. Now out of date (802.12 has been “inactive” because 1997) the usual has been withdrawn.

Gigabit Ethernet

For extra main points in this matter, see Gigabit Ethernet.

All of those use a celebrity topology.

Identify

Same old

Description

1000BASE-T

802.three (forty)

PAM-five coded signaling, CAT5/CAT5e/CAT6 copper cabling with 4 twisted pairs (utilized in each instructions)

1000BASE-TX

TIA 854

over most effective Cat-6 copper cabling. Unimplemented.

1000BASE-SX

802.three

8B10B NRZ coded signaling, multi-mode fiber (as much as 550 m).

1000BASE-LX

802.three

8B10B NRZ coded signaling, multi-mode fiber (as much as 550 m) or unmarried-mode fiber (as much as 2 km; may also be optimized for longer distances, as much as 10 km).

1000BASE-LH

multi-supplier

over unmarried-mode fiber (as much as one hundred km). An extended-haul answer.

1000BASE-CX

802.three

8B10B NRZ coded signaling, balanced shielded twisted pair (as much as 25 m) over unique copper cable. Predates 1000BASE-T and seldom used.

1000BASE-BX10

802.three

as much as 10 km. Bidirectional over unmarried strand of unmarried-mode fibre.

1000BASE-LX10

802.three

As much as 10 km over a couple of unmarried-mode fibres.

1000BASE-PX10-D

802.three

downstream (from head-finish to tail-ends) over unmarried-mode fiber the use of aspect-to-multipoint topology (helps no less than 10 km).

1000BASE-PX10-U

802.three

upstream (from a tail-finish to the pinnacle-finish) over unmarried-mode fiber the use of aspect-to-multipoint topology (helps no less than 10 km).

1000BASE-PX20-D

802.three

downstream (from head-finish to tail-ends) over unmarried-mode fiber the use of aspect-to-multipoint topology (helps no less than 20 km).

1000BASE-PX20-U

802.three

upstream (from a tail-finish to the pinnacle-finish) over unmarried-mode fiber the use of aspect-to-multipoint topology (helps no less than 20 km).

1000BASE-ZX

Unknown

As much as one hundred km over unmarried-mode fibre.

1000BASE-KX

802.3ap

1 m over backplane

10 Gigabit Ethernet

For extra main points in this matter, see 10 Gigabit Ethernet.

Identify

Same old

Description

10GBASE-SR

802.3ae

designed to fortify brief distances over deployed multi-mode fiber cabling, it has a variety of among 26 m and eighty two m relying on cable sort. It additionally helps three hundred m operation over a brand new 2000 MHz.km multi-mode fiber.

10GBASE-LX4

802.3ae

makes use of wavelength department multiplexing to strengthen levels of among 240 m and three hundred m over deployed multi-mode cabling. Additionally helps 10 km over unmarried-mode fiber.

10GBASE-LR

802.3ae

helps 10 km over unmarried-mode fiber

10GBASE-ER

802.3ae

helps forty km over unmarried-mode fiber

10GBASE-SW

802.3ae

A model of 10GBASE-SR the use of the WAN PHY, designed to interoperate with OC-192 / STM-sixty four SONET/SDH apparatus

10GBASE-LW

802.3ae

A version of 10GBASE-LR the use of the WAN PHY, designed to interoperate with OC-192 / STM-sixty four SONET/SDH apparatus

10GBASE-EW

802.3ae

A model of 10GBASE-ER the use of the WAN PHY, designed to interoperate with OC-192 / STM-sixty four SONET/SDH apparatus

10GBASE-CX4

802.3ak

designed to beef up brief distances over copper cabling, it makes use of InfiniBand 4x connectors and CX4 cabling and lets in a cable duration of as much as 15 m.

10GBASE-T

802.3an

Makes use of unshielded twisted-pair wiring.

10GBASE-LRM

802.3aq

Prolong to 220 m over deployed 500 MHz.km multimode fiber

10GBASE-KX4

802.3ap

1 m over four lanes of backplane

10GBASE-KR

802.3ap

1 m over a unmarried lane of backplane

10 gigabit Ethernet continues to be relatively new and it is still noticed which of the criteria will achieve business popularity in shopper markets. 10GBASE-LR/ER are the most typical utilization within the Service/ISP marketplace.

Observe that each IEEE 802.2ae and IEEE 802.3ak were included into IEEE 802.three-2008.

forty Gigabit Ethernet

For extra main points in this matter, see one hundred Gigabit Ethernet.

That is the longer term model of Ethernet and isn’t anticipated to be standardized till 2010. That is the proposed nomenclature:

Identify

Same old

Description

40GBASE-SR4

802.3ba

one hundred m operation over a brand new 2000 MHz.km multi-mode fiber.

40GBASE-LR4

802.3ba

10 km operation over unmarried-mode fiber.

40GBASE-CR4

802.3ba

10 m operation copper cable meeting.

40GBASE-KR4

802.3ba

1 m operation over backplane.

one hundred Gigabit Ethernet

For extra main points in this matter, see one hundred Gigabit Ethernet.

That is the longer term model of Ethernet and isn’t anticipated to be standardized till 2010. That is the proposed nomenclature:

Identify

Same old

Description

100GBASE-SR10

802.3ba

one hundred m operation over a brand new 2000 MHz.km multi-mode fiber.

100GBASE-LR4

802.3ba

10 km operation over unmarried-mode fiber.

100GBASE-ER4

802.3ba

forty km operation over unmarried-mode fiber.

100GBASE-CR10

802.3ba

10 m operation copper cable meeting.

Ethernet over twisted-pair cable

Primary article: Ethernet over twisted pair

A few types of Ethernet have been in particular designed to run over four-pair copper based cabling already put in in lots of places. ANSI recommends the use of Class 6 cable for brand spanking new installations[citation needed].

RJ-forty five Wiring (TIA/EIA-568-B T568A)

Pin

Pair

Colour

phone

10BASE-T

100BASE-TX

1000BASE-T

PoE mode A

PoE mode B

1

three

white/inexperienced

TX+

z

bidi

48V out

2

three

inexperienced

TX-

z

bidi

48V out

three

2

white/orange

RX+

z

bidi

48V go back

four

1

blue

ring

bidi

48V out

five

1

white/blue

tip

bidi

48V out

6

2

orange

RX-

z

bidi

48V go back

7

four

white/brown

bidi

48V go back

eight

four

brown

bidi

48V go back

Combining 10Base-T (or 100BASE-TX) with “IEEE 802.3af mode A” lets in a hub to transmit each energy and information over handiest pairs. This used to be designed to go away the opposite pairs loose for analog phone signs[citation needed].

The pins utilized in “IEEE 802.3af Mode B” provides energy over the “spare” pairs now not utilized by 10BASE-T and 100BASE-TX.

In a departure from each 10BASE-T and 100BASE-TX, 1000BASE-T makes use of all 4 cable pairs for simultaneous transmission in each instructions thru using echo cancellation. (Dial-up modems additionally use echo cancellation to concurrently transmit knowledge in each instructions over a unmarried cable pair).

Ethernet minimal cable lengths

All copper Ethernet segments that run the Collision Locate (CD) section of CSMA/CD have a minimal cable duration to serve as correctly as a result of reflections. This is applicable best to 10BASE-T and 100BASE-TX requirements; The 1000BASE-TX same old is roofed on the finish of this segment.

Fiber connections have minimal cable lengths as a result of degree necessities on won signs.

Fiber ports designed for lengthy-haul wavelengths require a sign attenuator if used inside of a construction.

Commercial Ethernet programs use a celebrity topology without a collisions in order that no minimal cable duration is needed.

1000BASE-TX helps part-duplex mode, making collisions imaginable. As a result, the 1000BASE-TX same old calls for a minimal cable duration for collision detection to serve as correctly; to steer clear of this in Gigabit Ethernet, small frames are padded into the transmission in part-duplex mode.

See additionally

Ethernet

Bodily layer

IEEE 802.three

References

^ Cisco Gigabit Ethernet Answers for Cisco 7×00 Collection Routers, undated, URL retrieved on 17 February 2008

^ see web page eight for proposed nomenclature

^ Cisco 100BASE-FX SFP Rapid Ethernet Interface Converter on Gigabit SFP Ports, undated, URL retrieved on 1 June 2007

^ Intel Community Connectivity Answers Information, undated, URL retrieved on 1 June 2007

Exterior hyperlinks

Get IEEE 802.three

IEEE 802.three

The best way to make an Ethernet cable

Classes: Bodily layer protocols | EthernetHidden classes: Articles desiring cleanup from December 2006 | All pages desiring cleanup | All articles with unsourced statements | Articles with unsourced statements from February 2007

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