Installing A Dc Power Supply; Figure 41: Removing A Dc Power Supply - Juniper M10i Hardware Manual

M10i Internet Router Hardware Guide

Figure 41: Removing a DC Power Supply

Installing a DC Power Supply

To install a DC power supply, follow this procedure (see
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
114
Replacing Power System Components
Verify that there is no power flowing to the power supply from the external
power source, so 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.
Verify that the power switch for the power supply (located on the power supply
faceplate) is in the OFF ( O
Verify that the grounding cable is attached to the chassis and properly connected
to an earth ground.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist and
connect the strap to one of the ESD points on the chassis. Make sure the router
is attached to a proper earth ground. For more information about ESD, see
"Preventing Electrostatic Discharge Damage"
Grasp the handle on the power supply faceplate with one hand and place the
other hand under the supply to support it.
Align the rear of the supply with the slide guides inside the chassis and slide the
supply into the chassis until it contacts the midplane.
Tighten (but do not overtighten) the thumbscrews on the power supply faceplate.
Verify that a licensed electrician has attached a listed power cable lug to each
power source cable.
Loop the power cables through the hook located on the faceplate to the right of
the field-wiring terminals.
Depending on the type of power cable lugs used, loosen or remove the screws
on the field-wiring terminals.
Insert the power cable lugs into the appropriate field-wiring terminals. Using a
number 1 Phillips screwdriver, turn the screw on each field-wiring terminal
) position.
on page 140.
and ):
Figure 42 Figure 43