Installing The Mx960 Dc High-Capacity Power Supplies - Juniper MX240 Instruction For Upgrading

Upgrading MX240, MX480, and MX960 3D Universal Edge Router Power Supplies and Fan Trays

Installing the MX960 DC High-Capacity Power Supplies

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Figure 23: Removing a DC Power Supply from the MX960 Router
WARNING: Before performing DC power procedures, ensure that power is
removed from the DC circuit. To ensure that all power is off, locate the circuit
breaker on the panel board that services the DC circuit, switch the circuit
breaker to the off position, and tape the switch handle of the circuit breaker
in the off position.
To install a DC power supply (see Figure 16 on page 21):
Ensure that the voltage across the DC power source cable leads is 0 V and that there
1.
is no chance that the cable leads might become active during installation.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
2.
the strap to one of the ESD points on the chassis.
Move the switch on the power supply faceplate to the off (
3.
) position.
O
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