CCNA Data CenterEthernet

Connections

Network Interface Cards

10/100 Ethernet Mediastandard cable connector distance

10BASE-2 RG-58 Coax BNC 185M

10BASE-5 RG-50 Coax AUI 500M

10BASE-T Cat 3 RJ-45 100M

10BASE-TX Cat 5 RJ-45 100M

100BASE-FX MMF SC,ST,LC,MTRJ 400M

1G Ethernet Mediastandard cable connector Distance

1000BASE-CX Twinax DE-9 or 8P8C 25M

1000BASE-SX MMF Dual LC 200-500M

1000BASE-LX MMF Dual LC 550M

1000BASE-T Cat 5 RJ-45 100M

1000BASE-TX Cat 6a RJ-45 100M

10G Ethernet MediaStandard Cable Connector Distance

10GBASE-SR MMF Dual SC / LC 26-300M

10GBASE-LR SMF Dual LC 10km

10GBASE-CX4 CX4 Infiniband 4x 15M

10GBASE-T Cat 6a RJ-45 100M

10GBASE-T Twinax (passive)

1-5M

10GBASE-T Twinax (active) 7-10M

Ethernet Connectors

Dual SC Dual LC

MR-RJ RJ-45

1G Transceivers

Copper SFT

Fiber SFT

Fiber GBICs

10G TransceiversFiber XENPAK & Fiber X2 Fiber XENPAK

Fiber SFP+ and Twinax

Unshielded Twisted-Pair Cable

» Speed and throughput 10Mbps to 1Gbps» Very low cost» Cable lengths varies (1M – 100M)» Short cables are referred to as “patch

cords”» Consists of 4 twisted pairs using 8 wires inside outer jacket (orange, green, blue,

brown)

UTP Cable Categories» Cat 1 – Telephone wire – not for data» Cat 3 – Used in 10BaseT (up to 10Mbps)» Cat 5 – Data speeds up to 100Mbps» Cat 5e – Data speeds up to 1Gbps (using 2-

pair)» Cat 6 – 4 pairs of 24-gauge copper wires (up to

1Gbps)» Cat 6a – Enhanced performance in high noise

environments (up to 10Gbps)» Most common – Cat 1 (Telephone) Cat 5, 5e, &

6 (Data)

RJ-45 plug & RJ-45 Jack

Straight-Thru & Crossover Pin-outs

Straight-Thru and Crossover Use Cases

» Straight-Thru • Switch to router • Switch/Hub to PC/Server» Crossover • Switch to switch, router to router, PC to

PC, Hub to Hub • Router to PC and switch to Hub» Some Cisco devices support Auto-

MDIX