What's Grounding Requirements for Signal Cables

It is recommended that shielded cables or the cables with metal jackets be used as the signal cables that are led into or led out from an office.

It is recommended that the cables with metal jackets be used as the power cables that are led into or led out from an office or such power cables be routed through metal pipes.

The shielded layer, metal jacket, or metal tube of a cable that is led into the TR must be connected to the nearest protection ground bar of the TR.

Both ends of the shield layer of a shielded cable should have good electrical contact with the metal shell of the server they connect to.

Grounding of the external conductors of coaxial cables to the digital distribution frame (DDF) should meet customer requirements.

The DDF must be grounded. The DDF and the server in the same TR should share one protection ground bar.

The incoming and outgoing signal cables to and from an office and the idle line pairs inside the cables should be grounded for protection.

The metal reinforcing ribs of the incoming and outgoing signal cables to and from an office should be grounded to the optical distribution frame (ODF) or optical fiber box in the TR.

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