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Interface

Copper

Ref: Ethernet Media Standards and Distances

10BASE-T

  • Usually use in WOL (Wake On LAN)
Speed10 Mb/s
Distance100m
CableCat 5, Cat 5e, Cat 6
Connector8P8C

100BASE-TX

Speed100 Mb/s
Distance100m
CableCat 5, Cat 5e, Cat 6
Connector8P8C

1000BASE-T

Speed1 Gb/s
Distance100m
CableCat 5, Cat 5e, Cat 6
Connector8P8C

10GBASE-T

Speed10 Gb/s
Distance55 m (Cat 6)
100 m (Cat 6a / Cat 7)
CableCat 6, Cat 7
Connector8P8C

Pinout

Pin10BASE-T / 100BASE-TX
Signal ID
1G / 10GBASE-T
Signal ID
1TD+DA+
2TD-DA-
3RD+DB+
4-DC+
5-DC-
6RD-DB-
7-DD+
8-DD-

8P8C (Referred to incorrect name: RJ45)

8P8C RJ45

TIA/EIA-568A

TIA-568A

TIA/EIA-568B

TIA-568A

PoE (Power over Ethernet)

802.3af

Reference

PinDataMode AMode B (Passive)
1RX+DC+-
2RX-DC+-
3TX+DC--
4--DC+
5--DC+
6TX-DC--
7--DC-
8--DC-

Auto MDI-X

Ref: Auto MDI-X

Medium Dependent Interface, X = Crossover

Fiber

Ref: Cisco SFP Modules for Gigabit Ethernet Applications Data Sheet

1000BASE‑LX/LH

Fiber typeSMF / MMF with Mode Conditioning Patch Cable
Max DistanceSMF: 5 km, MMF: 550 m
Wavelength1,310 nm, 1,550 nm
SlotGBIC, SFP
ConnectorSC, LC

1000BASE‑SX

Fiber typeMMF
Max Distance550 m
Wavelength770 - 860 nm
SlotGBIC, SFP
ConnectorSC, LC

Optical Fiber

Cladding

Ref: The FOA Reference For Fiber Optics - Optical Fiber

SMF (Single Mode Fiber)

FOA Reference

ISO/IEC 11801 - Wikipedia

OS (Optical Single-mode)OS1, OS2
Core diameter8 - 10.5 µm
Cladding diameter125 µm
  • OS2 dB lower (better) than OS1

MMF (Multi Mode Fiber)

Multi-mode optical fiber - Wikipedia

FOA Reference

ISO/IEC 11801 - Wikipedia

OM (Optical Multi-mode)OM1 - OM5
Core diameter50 – 100 µm, OM1 = 62.5 µm, OM2, OM3, OM4, OM5 = 50 µm
Cladding diameter125 µm
  • OM5 dB lower (better) than OM1

Connector

Reference

NameImage
SCSC
LCLC

Fiber Connector

  • APC has a 8° angle end-face
  • UPC has a flat end-face
  • UPC and APC connectors can’t be used interchangeably

Slot

QSFP28

100 Gigabit Ethernet

Channel: 4

Fiber Channel: 32 Gb/s

QSFP+

40 Gigabit Ethernet

Channel: 4

Fiber Channel: 10 Gb/s

QSFP (Quad Small Form-factor Pluggable)

4 Gigabit Ethernet

Channel: 4

Fiber Channel: 4 Gb/s

SFP+

Compatible SFP module

Speed: 10 Gb/s

Hot plugging

SFP (Small Form-factor Pluggable)

Speed: 1 Gb/s

Hot plugging

GBIC (GigaBit Interface Converter)

  • obsolete

XFP

  • uncommon
  • obsolete

X2

  • uncommon
  • obsolete