Networking

Networking Connectors

This chart represents the T568B wiring scheme, which is commonly used in Ethernet networks. The wire colors correspond to the individual wires inside the network cable, and the pin numbers represent the pinout order on an 8P8C (RJ45) connector.

T568A and T568B diagram

The terms "568A" and "568B" refer to two different wiring standards used in Ethernet cable connections, specifically for the termination of twisted pair cables, such as Category 5 (Cat5) or Category 6 (Cat6) cables. These standards specify the arrangement of the individual wire pairs within the cable's connector.

While the physical arrangement of the wire pairs differs between 568A and 568B, it's important to note that both standards are functionally equivalent. The main purpose of these standards is to ensure consistency and compatibility in Ethernet installations. As long as both ends of an Ethernet cable are terminated using the same standard (either 568A or 568B), the cable will work correctly for data transmission.

Networking Cabling Types and Specifications

Ethernet Cables (Cat5e/Cat6/Cat6a)

It's important to note that the standard lengths mentioned above are general guidelines. In practice, network cables can be customized to specific lengths based on the installation requirements.

IP Subnet Calculation

Bandwidth Calculation

Formula:

Bandwidth (in megabits per second, Mbps) = File Size (in megabytes, MB) * 8 / Transfer Time (in seconds, s)

Formula Breakdown:

Here's a breakdown of the components in this formula:

PoE Power Budget Calculator

Calculate if the power budget is sufficient for the connected PoE devices.




PoE Voltage Drop Calculator

Calculate the voltage drop in a PoE installation.




PoE Injector/Switch Selection Calculator

Recommend suitable PoE injector or switch based on power requirements.




PoE Maximum Cable Length Calculator

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Calculate the maximum cable length for a given power requirement.