Installation Manual
Quidway S8500 Series Routing Switches Chapter 4 Switch Installation
Huawei Technologies Proprietary
4-13
(1)
(2)
(3)
(4)
(5)
(1)
(2)
(3)
(4)
(5)
(1) Connector-retention clamp (2) Input LED
(3) Output LED (4) Fail LED
(5) Power switch
Figure 4-12 Connect AC power cord for the S8508/S8512
4.5.3 Connecting DC Power Cord
Caution:
Power OFF all the related parts of the switch before connecting the DC power cord.
In the connection of DC power cord, a connector bar will be used, and the power cord
will be tightened into the bar using screws for the sake of reliability.
Take these steps to connect the DC power cord.
Step 1: Loosen the mounting nuts of the connectors on the DC PSU using the socket
wrench.
Step 2: Insert the -48V terminal (with a blue wire) of the DC power cord of the switch
into the “-48V” connector on the PSU and fasten the mounting nut. Insert the other end
of the OT terminal into the “-48V” connector on the external power supply.
Step 3: Insert one end of the GND OT terminal (with a black wire) of the DC power cord
into the “RTN” connector on the PSU, and fasten the mounting nut. Connect the other
end of the OT terminal to the RTN connector on the external power supply.
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