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Removing the Power Supplies
The router has two power supplies (either AC or DC) located
at the bottom rear of the chassis, as shown in Figure 2. A power supply weighs approximately
12 lb (5.5 kg).
To remove the power supplies, follow this procedure (see Figure 28, which shows the power
switch in the OFF [O] position on a DC power supply,
and Figure 29, which shows
removal of an AC power supply):
an electrostatic discharge (ESD) grounding strap to your bare wrist
and connect the strap to one of the ESD points on the chassis. Verify
that the router is attached to a proper earth ground. For more information about ESD, see Preventing
Electrostatic Discharge Damage.
- Verify that the power switch for each power supply is in the OFF (O)
position. On a DC power supply, the switch is located above the terminal studs on the power supply faceplate. On an AC power supply, the switch is just below the appliance inlet on the power supply faceplate.
- Loosen the thumbscrew at each end of the power supply faceplate, using
a Phillips screwdriver if necessary. Unscrew both thumbscrews simultaneously
and at about the same rate (unscrewing the two screws alternately or at very
different rates can cause the power supply to become lodged in the slot, making
it difficult to turn the screws).
- Pull the ejector handle away from the faceplate.
- Grasp the handle on the power supply faceplate and pull firmly to slide
the unit about halfway out of the chassis.
- Place one hand under the power supply to support it, then slide it completely
out of the chassis.
the procedure to remove the second power supply.
Figure 28: Power Switch in
the Off Position on a DC Power Supply
Figure 29: Removing a Power Supply
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