Step 6: Connect Power Cables
Depending on your configuration, your router uses either normal-capacity or high-capacity
AC or DC power supplies. Perform the appropriate procedures for each power supply in
your router.
WARNING: You must ground the router before connecting either the AC
power cord or the DC power cables.
•
Connect Power to an AC Router with Normal-Capacity Power Supplies on page 17
•
Connect Power to an AC Router with High-Capacity Power Supplies on page 18
•
Connect Power to a DC Router with Normal-Capacity Power Supplies on page 19
•
Connect Power to a DC Router with High-Capacity Power Supplies on page 21
Connect Power to an AC Router with Normal-Capacity Power Supplies
WARNING: The router must be properly grounded before you connect the
AC power cords.
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to one of the ESD points on the chassis. For more information about ESD,
see the MX240 3D Universal Edge Router Hardware Guide.
2. Locate the power cords, which should have a plug appropriate for your geographical
location. See the MX240 3D Universal Edge Router Hardware Guide.
3. Move the circuit breaker on the power supply faceplate to the off position (O).
4. Insert the appliance coupler end of the power cord into the appliance inlet on the
power supply.
5. Insert the power cord plug into an external AC power source receptacle.
NOTE: Each power supply must be connected to a dedicated AC power
feed and a dedicated customer site circuit breaker. We recommend that
you use a minimum, or as permitted by local code.
6. Dress the power cord appropriately. Verify that the power cord does not block the air
exhaust and access to router components, or drape where people could trip on it.
7. Repeat Step 2 through Step 6 for the remaining power supplies.
8. Switch the AC switch on each power supply to the on position (—) and observe the
status LEDs on each power supply faceplate. If an AC power supply is correctly installed
and functioning normally, the AC OK and DC OK LEDs light steadily, and the PS FAIL
LED is not lit.
17Copyright © 2015, Juniper Networks, Inc.
Step 6: Connect Power Cables
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