Installation Manual
Quidway S5000 Series Ethernet Switches
Chapter 3 Installation
Huawei Technologies Proprietary
3-3
Caution:
Before powering on the switch, connect the grounding wire first.
3.2.2 Connecting DC Power Cord
NEG(-): -48V
RTN(+): -48V working ground
Figure 3-3
DC power socket
Step 1: Connect one end of the chassis group cable, which is attached to the switch in
delivery, to the grounding screw on the rear panel of the switch. Ground the other end to
the nearest connecting point.
Step 2: Connect the DC power terminals of the switch to the corresponding terminals of
the -48V DC power system with power cord, with NEG(-) to the -48V input and RTN(+)
to the working ground of the -48V power supply.
Note:
In connecting power cords to the DC power terminals of the switch, first screw off the
terminal screw and insert the power cord, then screw on it.
Step 3: Check the state of the PWR LED on the front panel. ON means the power cords
are connected correctly.
Caution:
You should first connect the grounding cable before powering on the switch.
