Crossover Ethernet Cable Pinouts
Introduction:
Ethernet cables are commonly used to connect devices in a Local Area Network (LAN). There are two types of Ethernet cables: straight-through cables and crossover cables. While a straight-through cable is used to connect different devices, such as a computer to a switch, a crossover cable is used to connect similar devices, such as two computers or two switches. In this article, we will discuss the pinouts of a crossover Ethernet cable and provide a detailed explanation of each pin.
1. Pinout for T568A Standard:
The T568A standard is commonly used for straight-through cables, but it can also be applied to one end of a crossover cable. Following is the pinout for the T568A standard on one end of a crossover cable:
Pin 1: White/Green (Transmit+)
Pin 2: Green (Transmit-)
Pin 3: White/Orange (Receive+)
Pin 4: Blue (not used)
Pin 5: White/Blue (not used)
Pin 6: Orange (Receive-)
Pin 7: White/Brown (not used)
Pin 8: Brown (not used)
2. Pinout for T568B Standard:
The T568B standard is commonly used for straight-through cables, but it can also be applied to the other end of a crossover cable. Following is the pinout for the T568B standard on the other end of a crossover cable:
Pin 1: White/Orange (Transmit+)
Pin 2: Orange (Transmit-)
Pin 3: White/Green (Receive+)
Pin 4: Blue (not used)
Pin 5: White/Blue (not used)
Pin 6: Green (Receive-)
Pin 7: White/Brown (not used)
Pin 8: Brown (not used)
3. Explanation of Each Pin:
– Pins 1 and 2: These pins are used for transmitting data from one device to another. The positive and negative signals are transmitted on these pins.
– Pins 3 and 6: These pins are used for receiving data from another device. The positive and negative signals are received on these pins.
– Pins 4, 5, 7, and 8: These pins are not used in a crossover cable and are often left unconnected. They are reserved for future use or for other purposes.
Conclusion:
Understanding the pinouts of a crossover Ethernet cable is essential for connecting similar devices in a network. By following the T568A and T568B standards, you can create an effective crossover cable that allows devices to transmit and receive data correctly.
