What is the maximum cable run distance specified for horizontal cabling?

The maximum cable run distance specified for horizontal cabling is 90 meters. This guideline is established by standards such as ANSI/TIA-568, which focus on ensuring reliable data transmission and minimizing signal degradation over distance. The 90-meter limit applies to the horizontal cabling segment that runs from the telecommunications room to the workstation or end device.

This distance allows for the use of a standard 100-meter channel setup, which includes the horizontal cabling (up to 90 meters) and additional length for the patch cords (up to 10 meters at each end), totaling a maximum of 100 meters. Adhering to this specification is crucial for maintaining optimal performance in networking, as exceeding the distance may result in increased attenuation and reduced signal quality.

The other provided distances do not align with this standard for horizontal cabling practices, making 90 meters the correct answer in the context of BICSI Systems verification and cabling standards.