Understand the structural characteristics of fiber jumpers.

2021-04-14
1. The characteristics of optical fiber patch cords.

Fiber optic patch cords are constructed by capping the end of a multimode or single-mode fiber optic cable with a connector that will be connected with the same type of connector pigtails connected to the active board or port of the optical device Buckle. The two main components of optical fiber and connector will determine the functions of the optical fiber jumper, such as: low insertion loss, high return loss, good interchangeability and environmental adaptability. The transmission medium of fiber jumpers is single-mode or multi-mode fiber. Normally, yellow color is single-mode fiber for long-distance transmission, while orange, light green or magenta is multi-mode fiber for short-distance transmission.

2. What is the structure of the optical fiber jumper?

Simplex fiber jumpers are composed of single-core fibers, while duplex fiber jumpers are composed of two-core fibers, which can be multi-mode or single-mode. In addition, there are ribbon branch fiber optic cable assemblies, that is to say: one end is a ribbon fiber with multiple fibers, and a ribbon fiber connector. For example, MTP connector, the other end is a multi-simplex optical cable with connector, such as ST jumper, SC jumper, LC jumper, etc.

3. What are the available fiber patch cord lengths?

The length of the jumper mainly affects the attenuation. The attenuation value of multimode fiber is 3.5 dB per kilometer. In this case, customized requirements can be made for fiber jumpers.

4. The impact on the transmission system.

When the transmission system is designed, it will use optical fiber as the main medium for carrying data streams and the main medium for interconnection between telecommunications equipment, so system architects must consider the insertion loss of passive components: optical fiber jumper attenuation and its length Proportional, and the attenuator attached to the connector acts as a compensator. In order to perform correct work in an optical system, it is very important to rely on the characteristics of these components.