Optical cable splicing and optical cable termination

Regardless of the laying method of the optical cable outside the office, it must eventually enter the terminal office or relay station. The terminal office and relay station are collectively referred to as the office station. After the optical cable line reaches the office station, it needs to be connected with an optical transceiver. This connection is called optical cable termination.

The meaning of the end of the optical cable refers to: after the outdoor optical cable enters the machine room, the outer sheath of the optical cable is stripped to a certain length, so that the optical fiber sleeve and the reinforcing core are exposed, and the following operations are performed:

1. Tightly connect the metal reinforcing core with the grounding terminal on the ODF frame, so that the metal parts of the optical cable are well grounded and avoid lightning strikes;

2. Bind the optical fiber sleeves neatly in the ODF frame with plastic cable ties, and each sleeve corresponds to a splice tray;

3. Strip the optical fiber sleeve to a certain length, fuse the optical fiber and pigtail, and then place the pigtail and optical fiber neatly in the fusion fiber tray;

4. Fix the cable tag on the cable to identify the cable;

5. Fill in the open route corresponding to each core of the optical fiber into the data label on the ODF frame for easy maintenance and search.

The difference between optical cable splicing and optical cable termination

Optical cable splicing: generally refers to the connection between two optical cables, usually done in a joint box or a transfer box in the field, that is, two optical fibers are welded together by a fusion splicer.

Optical cable termination: generally refers to the fiber optic cable is fused to the local end and the pigtail is fused to connect with optical transceivers and other equipment.

For the monitoring of optical fiber splicing quality, there are currently three monitoring methods in engineering,

One is to use the display screen of the fusion splicer to monitor;

The second is to use OTDR to monitor the connection point;

The third is to use a light source and an optical power meter to perform a cut or insertion test on the splice loss, but since the cut or insertion is a destructive test, it is often not used in engineering.