Maintenance and Field Replacement
F.2.2
Installing AC Power Supply
You must make space for installing the power supply by removing an existing one (Removing AC Power
Supply, Removing DC Power Supply) or removing a blank (Removing Power Supply Blank) from a
power supply slot available on the switch.
Perform the following steps to install an AC power supply:
F.2.3
1. Put on a grounded, anti-static ESD strap.
2. Unpack the new power supply.
3. Insert the new power supply into the empty power supply slot.
4. After you insert the power supply, push gently on the power supply until the power supply is
fully seated.
5. Connect the power cord(s) to the power supply. Up to two cables can power each PSU.
6. Connect to the power source.
7. Verify normal operation using the LED indicators for your switch Table 14: AC Power Supply
Status LED States.
Removing DC Power Supply
• Ensure power is removed from DC circuits by turning off the power line servicing the circuits.
• Make sure to remove the ground connection last when removing power.
1. Put on a grounded, anti-static ESD strap.
2. Disconnect the power cable from the DC power source.
3. Squeeze the latch release.
4. Remove the power supply from the switch using the power supply latch release and handle.
5. Remove each power cable lug to the terminal studs with the flange locking nuts.
6. Remove the flange locking nuts to each of the terminal studs.
7. Disconnect the power cable lug from the terminal studs.
F.2.4 Installing DC Power Supply
You must make space for installing the power supply by removing an existing one (Removing AC Power
Supply, Removing DC Power Supply) or removing a blank (Removing Power Supply Blank) from a
power supply slot available on the switch.
Perform the following steps to install a DC power supply.
F.2.5
1. Put on a grounded ESD strap.
2. Unpack the new power supply.
3. Connect the cables for your power supply as explained in the guide (Cabling the Modular Switch ).
4. Insert the new power supply into the empty power supply slot.
5. After you insert the power supply, push gently on the power supply until the power supply is fully
seated.
6. Connect to the power source.
7. Verify normal operation using the LED indicators for your switch Table 15: DC Power Supply Status
LED States.
Removing Power Supply Blank
The power supply blank is held in place by friction.
1. Put on a grounded, anti-static ESD strap.
2. Remove the blank from the power supply slot you are going to populate.
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