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CAUTION: You must ensure that power connections maintain the proper polarity.
The power source cables might be labeled (+) and (–) to indicate their polarity. There
is no standard color coding for DC power cables. The color coding used by the external
DC power source at your site determines the color coding for the leads on the power
cables that attach to the terminal studs on each power supply.
4. Remove the power cables from the DC power source.
5. Use a Phillips screwdriver to remove the clear plastic cover protecting the terminal
block.
6. Within the terminal block, remove the screws that fasten the power cable lugs
to the terminal block.
7. Carefully move the power cables out of the way.
8. Slide the ejector tab on the power supply faceplate to the right, and hold it in
place to unlock the power supply.
9. Grasp the handle on the power supply faceplate, and pull firmly to start removing
the power supply. Slide it halfway out of the chassis (see Figure 93 on page 196).
10. Place one hand underneath the power supply to support it, and slide it completely
out of the chassis.
11. If you are not reinstalling a power supply into the emptied slot, install a blank
power supply panel over the slot.
Figure 93: Removing a DC Power Supply
Installing a DC Power Supply
Each power supply in a DC-powered router must be connected to earth ground. A
ground terminal is provided on each DC power supply for this purpose.
To install a DC power supply (see Figure 94 on page 198):
196 ■ Replacing Power System Components
J2320, J2350, J4350, and J6350 Services Router Getting Started Guide