Specifications

XMU+ Installation and Maintenance Guide rev.07 115
Replacing the XMU+ Large Chassis Power Supply
To remove a secondary Power Supply card
One of the benefits of having dual power supplies is that there is no need to take the
XMU+ offline when one of the supplies needs to be removed.
1. Disconnect the power supply to be removed.
2. Loosen the two thumbscrews on either end of the Power Supply card’s faceplate.
See “Connecting the XMU+ to its Power Supply” in Chapter 2 of the XMU+
Installation Handbook for a detailed diagram of the Power Supply card.
3. Pull the Power Supply card straight out.
To install a secondary Power Supply card
One of the benefits of having dual power supplies is that there is no need to take the
XMU+ offline when a second supply is being added.
1. If required, remove the blank faceplate or old Power Supply card. See To remove
a single Power Supply card on page 114.
2. Line up the circuit board of the new Power Supply card on the plastic rails in
the chassis.
3. Slide the new Power Supply card into place.
When seating the card, there should be slight resistance.
4. Tighten the thumbscrews.
5. Connect the secondary Power Supply card to its power source.
If the Power Supply card is properly installed and working, the LED indicator
will be green when the XMU+ is powered up.
Caution...
Forcing the Power
Supply card into
place could bend
the pins on the
connector.