Installation Manual
Quidway S3526 Ethernet Switch
Chapter 4 Installation
4-5
Note:
S3526 Ethernet Switch with DC power input has a power switch on its panel.
II. Connecting DC power cord
Step 1: Connect one end of the ground wire of the chassis that is shipped with the
switch to the grounding screw on the switch rear panel, and properly ground the other
end.
Step 2: Connect one end of the power cord that is shipped with the switch to the power
socket on the switch rear panel, and connect the other end to the –48V DC power
supply of the switch.
Step 3: Check whether the power indicator in the rear panel of the switch is on. If it is on,
it indicates that the power cord is correctly connected.
4.2.3 Ground Wire
Note:
The correct connection of the switch ground wire is the primary guarantee for the lightning protection and
anti-interference requirement for a switch; so you should connect the ground wire carefully.
The power input end of S3526 Ethernet Switch is connected with a noise filter unit,
whose central ground is directly connected with the chassis, forming the so-called
chassis ground (also called the protection ground). This chassis must be well grounded
so that the induction power and leakage power can be released to the ground to
enhance the switch performance to withstand the electromagnetic interference. The
chassis grounding screw is located on the rear panel of the chassis (see the location in
the following figure).
Grounding screw
SLOT2
Figure 4-5
Grounding screw of S3526 Ethernet Switch chassis
