TE and 4iG to Construct New Subsea Cable

The color-coding standards for Ethernet cables are defined by the TIA/EIA-568 standards, which outline two main wiring schemes: T568A and T568B. These standards specify the arrangement of the eight colored wires inside the cable.

Each pair of wires is twisted to minimize interference, and the pinout configuration determines how these wires are connected. Here are the details:

T568A Wiring Standard

1. Pin 1 – White/Green

2. Pin 2 – Green

3. Pin 3 – White/Orange

4. Pin 4 – Blue

5. Pin 5 – White/Blue

6. Pin 6 – Orange

7. Pin 7 – White/Brown

8. Pin 8 – Brown

T568B Wiring Standard

1. Pin 1 – White/Orange

2. Pin 2 – Orange

3. Pin 3 – White/Green

4. Pin 4 – Blue

5. Pin 5 – White/Blue

6. Pin 6 – Green

7. Pin 7 – White/Brown

8. Pin 8 – Brown

Straight-Through Cables: Use the same standard (T568A or T568B) on both ends. Commonly used to connect different devices (e.g., a computer to a switch). Crossover Cables: Use T568A on one end and T568B on the other. These are used to connect similar devices (e.g., a computer to another computer).

 T568B is the more commonly used standard in the U.S., but either standard can be used as long as both ends match.

Wire-Pair Assignments:

• Pair 1: Pins 4 and 5

• Pair 2: Pins 3 and 6

• Pair 3: Pins 1 and 2

• Pair 4: Pins 7 and 8

This arrangement ensures proper signal transmission and reduces crosstalk.