Hardware Installation and Reference Guide Preparation before Installation
Safety Grounding
The equipment using AC power supply must be grounded by using the yellow/green safety grounding cable. Otherwise,
when the insulating resistance decreases the power supply and the enclosure in the equipment, electric shock may occur.
Ensure that a protective earth wire is provided in the building.
A service person should check whether or not the socket-outlet from which the device is to be powered provides a
reliable connection to the building protective earth. If not, the service person should arrange for the installation of a
protective earthing conductor from the separate protective earthing terminal to the protective earth wire in the
building.
The socket-outlet should be installed at a location near the device easy for operation.
During the device installation, always make the ground connected first and disconnected last.
The cross-sectional area of protective earthing conductor should be at least 0.75mm
2
(18AWG).
Use three-pin power cord for installation. The cross-sectional area of each pin should be at least 0.75mm
2
(18AWG).
Lightning Grounding
The lightning protection system of a facility is an independent system that consists of the lightning rod, downlead
conductor and the connector to the grounding system, which usually shares the power reference ground and yellow/green
safety cable ground.The lightning discharge ground is for the facility only, irrelevant to the equipment.
EMC Grounding
The grounding required for EMC design includes shielding ground, filter ground, noise and interference suppression,
andlevel reference. All the above constitute the comprehensive grounding requirements. Theresistance of earth
wiresshouldbe less than 1 ohm. The XS-S1960-24GT4SFP-Hbackplane is reserved with one grounding pole, as shown in
Figure 2-1.
Figure 2-1 Schematic Diagram of the XS-S1960-24GT4SFP-HGrounding
2.2.6 Lightning Resistance Considerations
When the AC power cable is imported outdoors and directly connected to the power port of the switch, lightning line bank
should be adopted to prevent the switch from being hit by lightning shocks.Usage of the lightning line bank: Connect the
mains supply AC cable to the lightning line bank. Then, connect the switch to the lightning line bank. This can help to
