3
PSU 2 cover
6
Air inlet indicator (Blue
label)
The switches operate with two internal power supplies. At least one of the supplies must connect to a
power source. Two circuits provide redundancy protection.
Important:
Grounding wires and grounding lugs (M4 x 0.7) are not supplied. Wire size should meet local
and national installation requirements. Commercially available 6 AWG wire is recommended for
installations in the U.S.
À la terre et de mise à la terre fils cosses (M4 x 0.7) ne sont pas fournis. Calibre des fils doit satisfaire
des exigences de l’installation locale et nationale. Disponible dans le commerce 6 fils AWG est
recommandé pour les installations aux États-Unis.
4.1.1
Grounding Lug Preparation
The following procedure connects the chassis to the data center ground:
1. Prepare the (stranded) copper wiring for the ground wire.
2. Use agency-approved compression (pressure) lugs for wiring terminations.
3. Slip on heat-shrink tubing on the wire end before assembling the lugs on to the wire.
4. Crimp the lugs with the proper tool, and ensure that the tubing extends over the barrel of the lug
and the insulation on the wire as shown in the following figure.
Figure 10: Lug Preparation
1 Insulated wire
3Lug (all three terminals)
B 1/2”
2 Heat-shrink tubing
A1/4”
C 5/8”
5. Shrink the tubing with a heat gun.
4.2
Connecting Power Cables
Describes the installation requirements for connecting the power cables to the device.
Important:
Installation of this equipment must comply with local and national electrical codes. If necessary,
consult with the appropriate regulatory agencies and inspection authorities to ensure
compliance.
Read all installation instructions before connecting the system to the power source.
14
