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TechKnowSurge Catalog Interactives Fill In the RJ45 Pinout
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Fill In the RJ45 Pinout

Which pin does the solid green wire land on in T568B? Where does pin 2 end up across a crossover cable?

⚑ Complete this interactive to capture a CTF flag worth 5 points.

About this interactive

The two termination standards, pin 1 to pin 8: - **T568A:** white-green, green, white-orange, blue, white-blue, orange, white-brown, brown. - **T568B:** white-orange, orange, white-green, blue, white-blue, green, white-brown, brown. The blue pair (pins 4 and 5) and the brown pair (pins 7 and 8) sit in the same place in both; the orange and green pairs swap between pins 1 and 2 and pins 3 and 6. The colors alternate, striped then solid, and the pair on pins 3 and 6 is split around the blue pair, a layout left over from phone wiring. - **Straight-through:** the same standard on both ends, so each pin goes to the same pin. - **Crossover:** T568A on one end and T568B on the other, so pins 1 and 2 swap with pins 3 and 6. - **Rollover:** every pin reversed, 1 to 8 through 8 to 1. It is used for console cables, not for Ethernet.

What you'll learn

Aligned to

CompTIA Network+
1.5 Compare and contrast transmission media and transceivers.
5.2 Given a scenario, troubleshoot common cabling and physical interface issues.
Cisco CCNA
1.3 Compare physical interface and cabling types
Cisco CCST Networking
3.1 Identify cables and connectors commonly used in local area networks
4.2 Use a network diagram to attach the appropriate cables

Key terms

T568A
An Ethernet wiring termination standard that defines the pinout order for RJ45 connectors, placing the green pair on pins 1 and 2 and the orange pair on pins 3 and 6.
T568B
An Ethernet wiring termination standard that defines the pinout order for RJ45 connectors, placing the orange pair on pins 1 and 2 and the green pair on pins 3 and 6.
RJ45
A standardized registered jack connector used to terminate twisted pair cabling, defining the physical dimensions and pinout arrangement of eight conductors.
Straight-Through Cable
An Ethernet cable terminated with the same wiring standard (T568A or T568B) on both ends, used to connect dissimilar devices such as a computer to a switch.
Crossover Cable
An Ethernet cable terminated with T568A on one end and T568B on the other, crossing transmit and receive pairs to connect two similar devices such as computer to computer.
Rollover Cable
A cable wired so that the pins at one end are in the exact reverse order of the pins at the other end (pin 1 to pin 8, pin 2 to pin 7, and so on), used to connect a computer's serial port to the console port of a Cisco router or switch for out-of-band management. It is also called a Cisco console cable.

Topics

T568a T568b Rj45 Pinout Crossover Cable Rollover Cable Interactive Fill In

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