1. Look at the optical cable packaging

The standard length of the outdoor optical cable is generally 1km, 2km, 3km, 4km or customized length. When checking the outer packaging of the outdoor optical cable, it is necessary to determine whether the outer packaging has obvious signs such as the number of meters, factory name, optical cable type, etc. Whether there is an optical cable test record in the package.

2. Look at the cable sheath

Indoor optical cable sheaths are generally made of polygreen vinyl, or flame retardant poly green vinyl, or low-smoke halogen-free materials. High-quality outdoor fiber optic cable jackets are flexible and easy to peel.

3. Look at the reinforced metal skin of the optical cable

Most of the outdoor optical cables are armored optical cables with a reinforced metal layer. This metal layer needs to have the characteristics of no increase in hydrogen loss, no rust, and high strength. Therefore, the surface of the metal layer is gray after phosphating.

4. Look at the optical fiber core

The core part of the outdoor optical cable is its fiber core. The characteristics of the optical cable such as multi-mode and single-mode, OS2/OM1/OM2 are determined by the fiber core, and the quality of the fiber core plays a decisive role in the connection of the network. , so pay special attention to the fiber core of the optical cable when purchasing outdoor optical cables.