Juniper SRX5800 Hardware Manual page 285

3. Verify that the AC input switch nearest to the appliance inlet for the power cord you are replacing is
in the off (O) position:
For standard-capacity AC power supplies, there is only one AC input switch for each power supply;
it is located next to the appliance inlet on the chassis above the power supply.
For high-capacity AC power supplies, there is one AC input switch for each of the two appliance
inlets. One switch is located next to the AC inlet on the chassis above the power supply, and the
other is located next to the appliance inlet on the power supply itself.
4. Plug the replacement power cord into the corresponding appliance inlet located in the chassis directly
above the power supply, or, in the case of a high-capacity AC power supply, at the top edge of the
power supply itself.
5. Insert the power cord plug into an external AC power source receptacle.
NOTE: Each power supply must be connected to a dedicated AC power feed and a
dedicated customer site circuit breaker. We recommend that you use a 15 A (250 VAC)
minimum, or as required by local code.
6. Dress the power cord appropriately. Verify that the power cord does not block the air exhaust and
access to services gateway components, or drape where people could trip on it.
7. Move the AC input switch nearest to the appliance inlet for the power cord you are replacing to the
on (|) position:
For standard-capacity AC power supplies, there is only one AC input switch for each power supply;
it is located next to the appliance inlet on the chassis above the power supply.
For high-capacity AC power supplies, there is one AC input switch for each of the two appliance
inlets. One is located next to the AC inlet on the chassis above the power supply, and the other is
located next to the appliance inlet on the power supply itself.
8. Verify the following LED indications for the power supply for which you replaced the power cord:
For standard-capacity AC power supplies, verify that the AC OK and DC OK LEDs light steadily and
the PS FAIL LED is not lit.
For high-capacity AC power supplies, verify that the DC OK LED lights steadily and the PS FAIL LED
is not lit. In addition, the AC-1 OK LED should light green steadily if the upper AC feed (on the chassis
above the power supply) is connected and receiving power, and the AC-2 OK LED should light green
steadily if the lower AC feed (on the power supply itself) is connected and receiving power.
If any of the status LEDs indicates that the power supply is not functioning normally, repeat the
installation and cabling procedures.
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