Put a 24-core optical cable from the optical tap to arrange a 24-core junction box, and then can I continue to connect the 24-core junction box from this newly put 24-core junction box?

Basically, if a 576-core optical junction box is point A, you can end up with multiple optical cables (no more than the total capacity), and then you have a 48-core optical cable leading from point A to point B, which is divided into 8 branch cables, and each cable is fused with 6 cores. Then, the eight 6-core branch cables are connected to different fiber distribution boxes for termination, and then welded to the glue line from the fiber distribution boxes.

In short, a pigtail fiber (both ends) is generally used in the optical junction box, and the two fiber cores you use are connected by pigtails. This is called movable connection method, and the connector box is welded, that is, fixed connection.

Optical cables must be terminated at the front end and then connected with pigtails. For example, a pair of optical fibers are connected to optical splitter. Suppose an optical splitter has eight optical ports, and you can connect these eight optical ports with other devices with pigtails.