SAGEM 3P@C

4.3.2.Connecting the Power Cable of the Fans

The power cable connection of the fans is shown in the following figure.

Figure 4-29 Power cable connection of the fans

Fan alarm

(Blue) (yellow)

(Red)

Fan power cable

Fan module

Air deflector frame

(Red)

Fan alarm

(yellow)(Blue)

After connecting the power cable of the fans, connect –48V DC power before trial run. The installation of the – 48V DC power cable is shown in Figure 4-28.

4.3.3.Connecting the Grounding Cables

1.1.1.46Grounding cable connection of the equipment

To ensure the safe equipment operation, make sure the equipment is well grounded. Connect the grounding point of the equipment and the PGND connection point of the DC distribution unit on the rack to ensure reliable grounding. At the same, connect the PGND of the DC distribution unit to the grounding point in the equipment room reliably with a grounding cable whose cross-sectional area is no less than 16mm2 to ensure reliable grounding of the rack. If the rack is poorly grounded, separate grounding protection measures should be taken for the equipment as follows: Take a wire, and connect one of its end to the grounding bolt on the equipment rear and the other end to the grounding terminal in the equipment room.

1.1.1.47Grounding cable connection of the power supply

The rack provides a grounding bolt “PGND”. PGND (protection ground) is the cabinet shell ground (earth). Connect the “PGND” wiring terminal on the cabinet to the “PGND” busbar of the DC distribution unit with a yellow-green power cable.

3P@C Installation Manual

Page 4-22

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