Which type of cables should be anchored in the termination cabinet using aramid yarn or other strength members?

Optical fiber cables should be anchored in the termination cabinet using aramid yarn or other strength members because these fibers are delicate and can be easily damaged due to their fragile nature. Aramid yarn provides tensile strength, which helps to support the weight of the optical fiber while preventing excess strain on the fiber itself during installation, handling, and environmental changes.

The physical structure of optical fiber cables typically includes a glass core surrounded by protective layers. The use of strength members such as aramid yarn enhances the durability of the cable by providing the necessary mechanical support without detracting from the performance of the fibers. This support is crucial to ensure that the fibers do not experience stress that might lead to micro-bending or breaking, thus maintaining optimal performance in data transmission.

In contrast, copper cables, coaxial cables, and power cabling each possess different mechanical characteristics that allow for alternative anchoring methods and do not require the same specific strain relief solutions as optical fibers. Copper cables, for example, are generally more robust and can be supported by their own sheath and physical structure.