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Connecting the DC power cord for a PSR450-12D power
supply
1.
Correctly orient the DC power cord connector and insert the connector into the power
receptacle on the power supply.
If you orient the DC power cord connector upside down, you cannot insert the connector into
the power receptacle.
2.
Use a flat-head screwdriver to fasten the screws on the power cord connector, as shown in
Figure2-34.
3.
Connect the other end of the power cord to a DC power source.
Figure2-34 Connecting the DC power cord for a PSR450-12D power supply
If the provided DC power cord cannot meet your connection requirements, use the following table to
prepare a suitable copper cable as the DC power cord.
Table2-5 Requirements for a suitable DC power cord
Power supply
model
PSR450-12D
Verifying the installation
After you complete the installation, verify the following items:
•
There is enough space for heat dissipation around the switch, and the rack is stable.
•
The grounding cable is securely connected.
•
The power source is as required by the switch.
•
The power cords are correctly connected.
•
If part of the network cable for a port is routed outdoors, verify that a network port lightning
protector is used for the port.
•
If a power line is routed from outdoors, verify that a surge protected power strip is used for the
switch.
Minimum cross
Power cord
sectional area of
connector
the conductor
Use the
connector of the
2.1 mm
provided power
cord
Cross sectional
area of the
provided power
cord
2
or 14 AWG
3.3 mm
2-23
Maximum
cross sectional
area of the
conductor
3.3 mm
2
or 12 AWG
AWG
2
or 12
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