Procedure
Step 1
Ensure that the power supply switch located on the front of the power supply is set at standby (labeled as 0).
Step 2
Turn off the power at the circuit breakers for the portions of the DC grid power that you are connecting to
and verify that all of the LEDs on the power supplies are off.
Step 3
Size the 6-AWG power cables to the distance between the power supply and the DC power grid. If you need
to cut the cable, cut it at the end that connects to the DC power grid, remove 0.75 inch (19 mm) of insulation
from the cut ends, and attach them to the DC power system. Be sure to connect the negative cables to negative
lines and positive cables to positive lines.
For all your power connections, if you are using cables with two different colors, use one color cable
for all positive circuits and the other color for all negative circuits.
Note
Step 4
Remove the three screws that hold down the safety cover for the terminal box on the front of the DC power
supply and remove the cover.
The terminal box has four slots for four power terminals (ordered as negative [-], positive [+], positive
[+], and negative [-]). Each terminal has two nuts that you use to fasten a power cable to the terminal.
Note
Figure 4: Safety Cover of the Terminal Box
Opening for the 6-AWG power cable.
The diameter of the 6-AWG cable
(wire + insu heat-shrink
tubing) should be less than 10mm.
Note
3
Safety Cover
1
Terminal slots showing cable installation
order (negative [-], positive [+], positive
[+], and negative [-])
2
Catalyst 6880-X Switch Hardware Installation Guide
OL-30827-02
7
Installing and Removing Power Supplies
Connecting to the Power Source