QLS250, QLS450, QLS650, and QLS800
QLS250, QLS450, QLS650, and QLS800 Appliances have a redundant power supply unit (PSU) and support DC PSUs.
If necessary, you can replace a PSU. Note that all PSUs on an appliance must be of the same type (DC).
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Important - Make sure you are electromagnetically grounded before you install, uninstall, or replace a PSU. ESD (electrostatic discharge) can damage the appliance. |
QLS250 Appliance Rear Panel
QLS450, QLS650, and QLS800 Rear Panel
Item |
Description |
---|---|
1 |
Release lever |
2 |
LED indicator for each power supply unit
|
3 |
Extractor handle |
4 |
QLS250 - Two DC PSUs |
5 |
ESD grounding point |
6 |
Alarm off button for power supply units |
Removing a DC Power Supply Unit
Before you remove a power supply unit, we recommend that you make sure that:
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In QLS250 - A second DC power supply is installed and connected to a working power source
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In QLS450, QLS650, and QLS800 - Two other DC power supplies are installed and connected to a working power source
Or
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The appliance is shut down.
To remove a power supply unit:
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Loosen the two DC power cord retaining screws from the power supply.
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Remove the power cord from the power supply unit.
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If the alarm sounds, press the Alarm Off button to the right of the power supply units.
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Press and hold down the release lever as shown.
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While holding the release lever, pull the extraction handle to remove the power supply unit.
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Note - Remove the power supply unit only with the extraction handle to prevent any possible damage. |
Installing a Replacement DC Power Supply Unit
To install a replacement power supply unit:
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Insert the power supply unit into the power supply slot.
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Push in the power supply unit until the release lever clicks.
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Insert the power cord into the power supply socket.
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Tighten the two DC power cord retaining screws onto the power supply.
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Make sure that the power LED is illuminated.
PSU Configuration and Monitoring
See the Quantum LightSpeed Appliances Getting Started Guide for PSU configuration and monitoring options for your appliance model.