1. According to the laying router of the entrance leather cable, specify the part where it passes through the wall. Generally, it is advisable to use the existing weak current installation wall holes to pass through the optical fiber cables. For buildings without existing wall holes, the wall holes should be opened in hidden and unobstructed parts as much as possible.

2. Distinguish the total number of leather cables that need to be put through (based on the number of residents), and select the specifications of the holes on the wall. Generally, a hole with a diameter of 10mm can wear two leather cables.

3. According to the material of the wall hole and the specification of the hole, select the special tool (hand drill or electric drill) and the specification and model of the twist drill.

4. In order to avoid the inflow of precipitation, it is necessary to drill holes from the inner and outer walls to the outer wall tiles and at an angle of 10°.

5. After the wall is punched, in order to better ensure the beauty of the punched hole, the inner wall should be inserted into the wall hole with a waterproof casing through the wall or a wall decorative cover should be installed at the wall nozzle.

6. If the hole in the wall is larger than expected, it can be repaired with concrete, and the appearance of the side of the hole should be ensured as much as possible.

7. Pass the optical fiber cable through the hole, and use a spiral corrugated tube to bundle the optical fiber cable passing through the hole in the regeneration wall to avoid cracking of the optical fiber cable.

8. After the leather cable passes through the wall hole, the outer wall bricks should be sealed with fillers such as plugging mud and silica gel materials to prevent precipitation from infiltrating or insects from crawling in.

9. A certain inclination should be reserved on both sides of the leather cable passing through the wall to ensure the bending radius of the leather cable.