When is a mid-entry splice typically utilized in a fiber-optic network?

A mid-entry splice is typically utilized in a self-healing ring network with minimal fiber feeds because this configuration allows for easier access to fibers within the ring without the need for a complete disconnection of the network.

In such networks, the self-healing design aims to maintain service continuity even if a section of the network is disrupted. The mid-entry splice facilitates quick and efficient repairs or adjustments to fiber connections, as it permits technicians to insert or splice fibers without having to interrupt all traffic. This is particularly valuable in scenarios where maintaining continuous service is critical.

The other options, though they describe scenarios where fiber splicing might occur, do not align as closely with the specific utility of mid-entry splices. For example, star topology setups involve direct connections to a central point, making mid-entry splicing unnecessary, while high-capacity data centers typically use other splicing techniques that better handle large volumes of connections. Long-haul fiber networks often require different splice configurations to manage distance and signal loss effectively. Thus, in the context of a self-healing ring network, the mid-entry splice offers a practical solution for enhancing network resilience and service reliability.