Interface
Copper
10BASE-T
- Usually use in WOL (Wake On LAN)
| Speed | 10 Mb/s |
| Distance | 100m |
| Cable | Cat 5, Cat 5e, Cat 6 |
| Connector | 8P8C |
100BASE-TX
| Speed | 100 Mb/s |
| Distance | 100m |
| Cable | Cat 5, Cat 5e, Cat 6 |
| Connector | 8P8C |
1000BASE-T
| Speed | 1 Gb/s |
| Distance | 100m |
| Cable | Cat 5, Cat 5e, Cat 6 |
| Connector | 8P8C |
10GBASE-T
| Speed | 10 Gb/s |
| Distance | 55 m (Cat 6) 100 m (Cat 6a / Cat 7) |
| Cable | Cat 6, Cat 7 |
| Connector | 8P8C |
Pinout
| Pin | 10BASE-T / 100BASE-TX Signal ID | 1G / 10GBASE-T Signal ID |
|---|---|---|
| 1 | TD+ | DA+ |
| 2 | TD- | DA- |
| 3 | RD+ | DB+ |
| 4 | - | DC+ |
| 5 | - | DC- |
| 6 | RD- | DB- |
| 7 | - | DD+ |
| 8 | - | DD- |
8P8C (Referred to incorrect name: RJ45)

TIA/EIA-568A

TIA/EIA-568B

PoE (Power over Ethernet)
802.3af
| Pin | Data | Mode A | Mode B (Passive) |
|---|---|---|---|
| 1 | RX+ | DC+ | - |
| 2 | RX- | DC+ | - |
| 3 | TX+ | DC- | - |
| 4 | - | - | DC+ |
| 5 | - | - | DC+ |
| 6 | TX- | 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 type | SMF / MMF with Mode Conditioning Patch Cable |
| Max Distance | SMF: 5 km, MMF: 550 m |
| Wavelength | 1,310 nm, 1,550 nm |
| Slot | GBIC, SFP |
| Connector | SC, LC |
1000BASE‑SX
| Fiber type | MMF |
| Max Distance | 550 m |
| Wavelength | 770 - 860 nm |
| Slot | GBIC, SFP |
| Connector | SC, LC |
Optical Fiber
SMF (Single Mode Fiber)
| OS (Optical Single-mode) | OS1, OS2 |
| Core diameter | 8 - 10.5 µm |
| Cladding diameter | 125 µm |
- OS2 dB lower (better) than OS1
MMF (Multi Mode Fiber)
| OM (Optical Multi-mode) | OM1 - OM5 |
| Core diameter | 50 – 100 µm, OM1 = 62.5 µm, OM2, OM3, OM4, OM5 = 50 µm |
| Cladding diameter | 125 µm |
- OM5 dB lower (better) than OM1
Connector
| Name | Image |
|---|---|
| SC | |
| LC |

- 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