Install a DC P ow e r
Supply
Figure 9: Remove a DC Power Supply from an M10i Router
FAN
TRA
Y O
FA
NTR
AY 1
NOTE:
C-FEB 0
C-FEB 1
P
/S
3
P/S 2
P/S 1
P/S 0
P/S 0 AND P/S 1 MUST BE PRESENT
FOR NORMAL OPERATION.
g003334
Install a D
C Power Supply
To install a DC power supply, follow this procedure (see Figure 10, Figure 11, Figure 12, and
Figure 13)
:
1. Verify that there is no power flowing to the power supply from the external power
source, s
o that the voltage across the leads of the power cables is 0 V. Ensure that there
is no chance that the cable leads might become active during the procedure.
2. Verify that the power switch for the power supply (located on the power supply
faceplate) is in the OFF (O)position.
3. Verify that the grounding cable is attached to the chassis and properly connected to
an earth
ground.
4. Attach
an electrostatic discharge (ESD) grounding strap to your bare wrist and connect
the strap to one of the ESD points on the chassis.
5. Place one hand under the power supply and grasp the handle on the faceplate with the
other hand. Slide the power supply into the chassis until it contacts the midplane.
6. Starting with the bottom screw, tighten (but do not overtighten) the thumbscrews at
each c
orner of the power supply faceplate.
7. Verif
y that a licensed electrician has attached a listed power cable lug to each power
source cable.
8. Loop the power cables through the hook located on the faceplate to the right of the
field-wiring terminals.
9. Depending on the type of power cable lugs used, loosen or remove the screws on the
fiel
d-wiring terminals.
M7i and M10i Internet Routers Power Supply Installation Instructions 11
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