How to choose the number of fiber cores?

When selecting fiber, the first step is to determine single mode or multimode, and the second step is to determine the number of fiber cores you need to use.

The number of cores refers to the number of glass fibers contained in each fiber.

Common fiber cores include 1 core, 2 cores, 6 cores, 8 cores, etc., and there are many types. This article will focus on the number of fiber cores, introducing their respective characteristics and usage scenarios.

According to the traditional IBDN integrated wiring scheme, it is generally recommended that the communication room of each building should be 12 cores and the building room should be 24 cores.

First, have a clear understanding of the number of layer cabling points, count the number of switches, and whether the connections between switches are stacked.

The specific operations are as follows:

1. If the core switches are stacked for dual-system hot backup redundancy, 6 cores are sufficient (2 cores are used for each core, and 2 cores are redundant).

2. If it is not stacked, a switch needs 4 cores, and the number of switches is multiplied by 4 plus 4 core redundancy.

3. Experience and practice: set up an optical fiber in the wiring room (horizontal wiring cabinet) on each floor.

Generally six cores: two cores are used, two are spare, two are redundant, and eight-core fibers are also used.

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