Editing Fibre Channel (section)

==Media and modules==
{{Missing information|section|legacy copper interfaces|date=November 2023}}{{Contradict section|date=November 2023}}
[[File:Fibre Channel Media and Modules.png|thumb|Fibre Channel predominantly uses SFP or SFP+ modules with LC connector and duplex cabling, but 128GFC uses QSFP28 modules with MPO connectors and ribbon cabling.]]

The Fibre Channel physical layer is based on serial connections that use fiber optics to copper between corresponding pluggable modules. The modules may have a single lane, dual lanes or quad lanes that correspond to the SFP, SFP-DD and QSFP form factors. Fibre Channel does not use 8- or 16-lane modules (like CFP8, QSFP-DD, or COBO used in 400GbE) and there are no plans to use these expensive and complex modules.

The [[small form-factor pluggable transceiver]] (SFP) module and its enhanced version SFP+, SFP28 and SFP56 are common form factors for Fibre Channel ports. SFP modules support a variety of distances via multi-mode and [[single-mode optical fiber]] as shown in the table below. SFP modules use duplex fiber cabling with LC connectors.
[[File:SFP-DD SMT 17c.png|thumb|SFP-DD modules are used in high-density applications that need to double the throughput of traditional SFP ports.]]
SFP-DD modules are used for high-density applications that need to double the throughput of an SFP Port. SFP-DD is defined by the SFP-DD MSA and enables breakout to two SFP ports. Two rows of electrical contacts enable doubling the throughput of SFP modules in a similar fashion as QSFP-DD.

The [[QSFP|quad small form-factor pluggable]] (QSFP) module began being used for switch inter-connectivity and was later adopted for use in 4-lane implementations of Gen-6 Fibre Channel supporting 128GFC. QSFP uses either LC connectors for 128GFC-CWDM4 or MPO connectors for 128GFC-SW4 or 128GFC-PSM4. MPO cabling uses 8- or 12-fiber cabling infrastructure that connects to another 128GFC port or may be broken out into four duplex LC connections to 32GFC SFP+ ports. Fibre Channel switches use either SFP or QSFP modules.
{| class="wikitable sortable"
|-
! Fiber type
! Speed {{nowrap|(MB/s)}}
! Transmitter<ref>Transmitter values listed are the currently specified values for the variant listed. Some older versions of the FC standards listed slightly different values (however, the values listed here fall within the +/− variance allowed). Individual variations for each specification are listed in the references associated with those entries in this table. FC-PH = X3T11 Project 755D; FC-PH-2 = X3T11 Project 901D; FC-PI-4 = INCITS Project 1647-D; FC-PI-5 = INCITS Project 2118D. Copies are available from [http://www.incits.org/ INCITS] {{webarchive|url=https://web.archive.org/web/20100915022630/http://www.incits.org/ |date=2010-09-15 }}.</ref>
! Medium variant
! Distance
|-
! rowspan="17" |Single-mode fiber (SMF)
| rowspan="2" |12,800
|1,310&nbsp;nm longwave light
|128GFC-PSM4
|0.5m - 0.5&nbsp;km
|-
|1,270, 1,290, 1,310 and 1,330&nbsp;nm longwave light
|128GFC-CWDM4
|0.5 m – 2&nbsp;km
|-
|6,400
|1,310&nbsp;nm longwave light
|64GFC-LW
|0.5m - 10&nbsp;km
|-
|3,200
|1,310&nbsp;nm longwave light
|3200-SM-LC-L
|0.5 m - 10&nbsp;km
|-
| rowspan="2" | 1,600
| 1,310&nbsp;nm longwave light<ref group="ITS" name="FC-PI-5 Clause 6.3">FC-PI-5 Clause 6.3</ref>
| 1600-SM-LC-L<ref group="ITS" name="FC-PI-5 Clause 8.1">FC-PI-5 Clause 8.1</ref> || 0.5&nbsp;m{{snd}}10&nbsp;km
|-
| 1,490&nbsp;nm longwave light<ref group="ITS" name="FC-PI-5 Clause 6.3" />
| 1600-SM-LZ-I<ref group="ITS" name="FC-PI-5 Clause 8.1" /> || 0.5&nbsp;m{{snd}}2&nbsp;km
|-
| rowspan="2" | 800
| rowspan="2" | 1,310&nbsp;nm longwave light<ref group="ITS" name="FC-PI-4 Clause 6.3">FC-PI-4 Clause 6.3</ref>
| 800-SM-LC-L<ref group="ITS" name="FC-PI-4 Clause 8.1">FC-PI-4 Clause 8.1</ref> || 2&nbsp;m{{snd}}10&nbsp;km
|-
| 800-SM-LC-I<ref group="ITS" name="FC-PI-4 Clause 8.1" /> || 2&nbsp;m{{snd}}1.4&nbsp;km
|-
| rowspan="3" | 400
| rowspan="3" | 1,310&nbsp;nm longwave light<ref group="ITS" name="FC-PI-4 Clause 6.3" /><ref group="ITS" name="FC-PH-2 lists 1300nm (see clause 6.1 and 8.1)">FC-PH-2 lists 1300nm (see clause 6.1 and 8.1)</ref>
|| 400-SM-LC-L<ref group="ITS" name="FC-PI clause 8.1">FC-PI clause 8.1</ref> || 2&nbsp;m{{snd}}10&nbsp;km
|-
|| 400-SM-LC-M<ref group="ITS" name="FC-PI-4 Clause 8.1" /> || 2&nbsp;m{{snd}}4&nbsp;km
|-
|| 400-SM-LL-I<ref group="ITS" name="FC-PH-2 clause 8.1">FC-PH-2 clause 8.1</ref> || 2&nbsp;m{{snd}}2&nbsp;km
|-
| rowspan="3" | 200
| 1,550&nbsp;nm longwave light<ref group="ITS" name="FC-PI-4 Clause 11">FC-PI-4 Clause 11</ref>
| 200-SM-LL-V<ref group="ITS" name="FC-PI-4 Clause 11" /> || 2&nbsp;m{{snd}}50&nbsp;km
|-
| rowspan="2" | 1,310&nbsp;nm longwave light<ref group="ITS" name="FC-PH-2 lists 1300nm (see clause 6.1 and 8.1)" /><ref group="ITS" name="FC-PI-4 Clause 6.3" />|| 200-SM-LC-L<ref group="ITS" name="FC-PI clause 8.1" /> || 2&nbsp;m{{snd}}10&nbsp;km
|-
| 200-SM-LL-I<ref group="ITS" name="FC-PH-2 clause 8.1" /> || 2&nbsp;m{{snd}}2&nbsp;km
|-
| rowspan="3" | 100
| 1,550&nbsp;nm longwave light<ref group="ITS" name="FC-PI-4 Clause 11" />
| 100-SM-LL-V<ref group="ITS" name="FC-PI-4 Clause 11" /> || 2&nbsp;m{{snd}}50&nbsp;km
|-
| rowspan="2" | 1,310&nbsp;nm longwave light<ref group="ITS">FC-PH lists 1300nm (see clause 6.1 and 8.1)</ref><ref group="ITS" name="FC-PI-4 Clause 6.3" />
| 100-SM-LL-L<ref group="ITS" name="FC-PH Clause 8.1">FC-PH Clause 8.1</ref><br/>100-SM-LC-L<ref group="ITS" name="FC-PI clause 8.1" /> || 2&nbsp;m{{snd}}10&nbsp;km
|-
| 100-SM-LL-I<ref group="ITS" name="FC-PH Clause 8.1" /> || 2&nbsp;m{{snd}}2&nbsp;km
|-
! rowspan="23" |Multi-mode fiber (MMF)
|12,800
| rowspan="23" |850&nbsp;nm shortwave light<ref group="ITS">FC-PI-5 Clause 6.4</ref><ref group="ITS">FC-PI-4 Clause 6.4</ref><ref group="ITS">The older FC-PH and FC-PH-2 list 850nm (for 62.5μm cables) and 780nm (for 50μm cables)(see clause 6.2, 8.2, and 8.3)</ref>
|128GFC-SW4
|0–100&nbsp;m
|-
|6,400
|64GFC-SW
|0–100&nbsp;m
|-
|3,200
|3200-SN
|0–100&nbsp;m
|-
| rowspan="4" | 1,600
| 1600-M5F-SN-I<ref group="ITS" name="FC-PI-5 Clause 8.2">FC-PI-5 Clause 8.2</ref> || 0.5–125&nbsp;m
|-
| 1600-M5E-SN-I<ref group="ITS" name="FC-PI-5 Clause 8.2" /> || 0.5–100&nbsp;m
|-
| 1600-M5-SN-S<ref group="ITS" name="FC-PI-5 Clause 8.2" /> || 0.5–35&nbsp;m
|-
| 1600-M6-SN-S<ref group="ITS">FC-PI-5 Annex A</ref> || 0.5–15&nbsp;m
|-
| rowspan="4" | 800
| 800-M5F-SN-I<ref group="ITS" name="FC-PI-5 Clause 8.2" /> || 0.5–190&nbsp;m
|-
| 800-M5E-SN-I<ref group="ITS" name="FC-PI-4 Clause 8.2">FC-PI-4 Clause 8.2</ref> || 0.5–150&nbsp;m
|-
| 800-M5-SN-S<ref group="ITS" name="FC-PI-4 Clause 8.2" /> || 0.5–50&nbsp;m
|-
| 800-M6-SN-S<ref group="ITS" name="FC-PI-4 Clause 8.2" /> || 0.5–21&nbsp;m
|-
| rowspan="4" | 400
| 400-M5F-SN-I<ref group="ITS" name="FC-PI-5 Clause 8.2" /> || 0.5–400&nbsp;m
|-
| 400-M5E-SN-I<ref group="ITS" name="FC-PI-4 Clause 8.2" /> || 0.5–380&nbsp;m
|-
| 400-M5-SN-I<ref group="ITS" name="FC-PI Clause 8.2">FC-PI Clause 8.2</ref> || 0.5–150&nbsp;m
|-
| 400-M6-SN-I<ref group="ITS" name="FC-PI Clause 8.2" /> || 0.5–70&nbsp;m
|-
| rowspan="3" | 200
| 200-M5E-SN-I<ref group="ITS" name="FC-PI-4 Clause 8.2" /> || 0.5–500&nbsp;m
|-
| 200-M5-SN-I<ref group="ITS" name="FC-PI Clause 8.2" /> || 0.5–300&nbsp;m
|-
| 200-M6-SN-I<ref group="ITS" name="FC-PI Clause 8.2" /> || 0.5–150&nbsp;m
|-
| rowspan="5" | 100
| 100-M5E-SN-I<ref group="ITS">PC-PI-4 Clause 8.2</ref> || 0.5–860&nbsp;m
|-
| 100-M5-SN-I<ref group="ITS" name="PC-PI Clause 8.2">PC-PI Clause 8.2</ref> || 0.5–500&nbsp;m
|-
| 100-M6-SN-I<ref group="ITS" name="PC-PI Clause 8.2"/> || 0.5–300&nbsp;m
|-
| 100-M5-SL-I<ref group="ITS" name="PC-PI Clause 8.2"/> || 2–500&nbsp;m
|-
| 100-M6-SL-I<ref group="ITS">FC-PH Annex C and Annex E</ref> || 2–175&nbsp;m
|}

{| class="wikitable sortable"
|-
! Multi-mode fiber !! Fiber diameter !! FC media designation
|-
! OM1
|| 62.5&nbsp;μm || M6
|-
! OM2
|| 50&nbsp;μm || M5
|-
! OM3
|| 50&nbsp;μm || M5E
|-
! OM4
|| 50&nbsp;μm || M5F
|-
! OM5
|| 50&nbsp;μm || N/A
|}

Modern Fibre Channel devices support [[Small form-factor pluggable transceiver|SFP+]] transceiver, mainly with [[Optical fiber connector|LC]] (Lucent Connector) fiber connector. Older 1GFC devices used [[GBIC]] transceiver, mainly with [[Optical fiber connector|SC]] (Subscriber Connector) fiber connector.