At what frequency does the ISO class Ea associate a bandwidth for balanced twisted-pair cabling?

The correct frequency associated with the ISO class Ea for balanced twisted-pair cabling is 500 MHz. This classification is part of the international standards set for cabling, specifically focusing on the performance and capabilities of twisted-pair cabling systems used in networking.

ISO class Ea supports applications that require high data rates while maintaining signal integrity over longer distances. The 500 MHz bandwidth allows for the transmission of high-speed data, supporting advanced applications such as 10 Gigabit Ethernet (10GbE) over a distance up to 100 meters, which is critical in modern networking scenarios.

Understanding the significance of bandwidth is crucial for networking professionals as it directly impacts the data transmission speeds and the overall performance of network infrastructure. The choice of 500 MHz for ISO class Ea emphasizes the need for a balance between performance and practicality, offering sufficient bandwidth to accommodate most current and emerging applications in data communications.