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Installing Summit Family Switches
 
Summit Family Switches Hardware Installation Guide
158
Figure 134: Installing a PSU
5
To install a second PSU, repeat steps 
.
NOTE
If PSUs are not installed in both power supply bays, be sure to install a cover over the unoccupied bay. Unoccupied 
bays must always be covered to maintain proper system ventilation and EMI levels.
6
Connect an appropriate AC power cord to the power input socket; connect the other end of the 
power cord to a grounded AC power outlet. 
WARNING!
Always be sure that the source outlet is properly grounded before plugging the AC power cord into the AC PSU.
Installing a Summit X650 DC Power Supply
CAUTION
Make sure that the Summit X650 DC PSU circuit is not overloaded. Use proper over-current protection, such as a 
circuit-breaker, to prevent over-current conditions. You may use up to a 30-Amp breaker.
To install the Summit X650 DC PSU, perform the following tasks in the order listed:
1
Prepare the power cables and ground cable by attaching the provided connection lugs to the cables 
(see next section).
2
Insert the PSU into the Summit X650 series switch (see 
3
Connect the ground (see 
4
Have a qualified licensed electrician connect the PSU to the DC source voltage (see 
5
Energize the DC circuit.
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