What do the different colors of Ethernet cables indicate?

Grey-colored cables typically represent standard ethernet connections, while green cables represent crossover ethernet connections. Yellow cables are used to signify POE (power over ethernet), while blue cables are used for terminal server connections.

What is LAN cable color code?

Standard, Straight-Through Wiring Diagram(both ends are the same):

RJ45 Pin #	Wire Color (T568B)	10Base-T Signal 100Base-TX Signal
1	White/Orange	Transmit+
2	Orange	Transmit-
3	White/Green	Receive+
4	Blue	Unused

Do ethernet cables have to be blue?

You can get Ethernet cables in a variety of colours. As others have said, they’re not all blue. However, I can suggest why blue is the most common color used. When looking at a computer, especially a traditional desktop, you’ll notice that the power cords are normally black.

Do ethernet cables have to be yellow?

There is no difference between yellow and blue ethernet cable at all. Both of the cables offers the same use. Typically different colored cables are used to make networking easy and recognizable especially when there are different types of network hardware used within a particular network.

What are the colors for wiring?

U.S. Electrical Wiring Color Codes

• Phase 1 – Black.
• Phase 2 – Red.
• Phase 3 – Blue.
• Neutral – White.
• Ground – Green, Green with Yellow Stripe, or Bare Wire.

What are the wires inside an Ethernet cable?

There are four pairs of wires in an Ethernet cable, and an Ethernet connector (8P8C) has eight pin slots. Each pin is identified by a number, starting from left to right, with the clip facing away from you. The two standards for wiring Ethernet cables are T568A and T568B….T568B Standard.

Pin 1	White/Orange
Pin 8	Brown

Which wires are used in Ethernet cable?

The RJ45 data cables we use to connect computers to a Ethernet switch is straight-through cables. As noted above, the RJ45 cable uses only 2-pairs of wires: Orange (pins 1 & 2) and Green (pins 3 & 6). Pins 4, 5 (Blue) and 7, 8 (Brown) are NOT used.

Is there a difference between blue and yellow ethernet cables?

What color is cat5 cable?

The four wire pairs in a CAT-5 cable are distinguished by the color of their insulation. The four colors are (in order) blue, orange, green and brown. Thus, when refering to the “second pair” of wires, it is the orange pair.