The reserved length of the optical cable connector is generally not less than how many meters

　　The specific requirements for the reserved length of the cable connector may vary depending on the application scenario, design specification or specific requirements. But generally, there is usually a basic standard for the reserved length of the cable connector.

　　A common standard is to reserve a cable joint length of not less than 7 meters. This length ensures that the cable has sufficient redundancy at the joint for maintenance, repair or replacement.

　　Another way of saying it is that the remaining length of the cable at the cable joint is generally not less than 4 meters. At the same time, after the cable connection is completed, the remaining length (that is, the distance between the peeling and the joint) is generally 60 to 100 mm. This standard is also to ensure the reliability and maintainability of the cable joint.

　　In addition to the above basic standards, the reserved length of fiber optic cables may also be affected by other factors. For example, in offices with incoming and outgoing rooms, the cable should be reserved in the incoming and outgoing rooms, and the remaining length may be 10 to 20 meters; for offices without incoming rooms, the fiber optic cable should be left in the front manhole or the second personal hole, and the remaining length may be 15 to 20 meters. In addition, in special areas, such as rivers, bridges, highways and railways, 5 to 30 meters of fiber optic cable should be reserved at each place to ensure the stability and reliability of the fiber optic cable in these complex environments.

　　In general, the specific requirements for the reserved length of the optical cable joint should be determined according to the actual situation and design specifications. During the design and construction process, factors such as the reliability, maintainability and application scenarios of the optical cable should be fully considered to ensure the normal operation and long-term stability of the optical cable system.