Juniper PTX Series - Installing a PTX5000 PDU; Figure 73: Installing a PDU

Installing a PTX5000 PDU
Each PDU without the input power trays weighs approximately 53.6 lb (24.4 kg). The
input power tray weighs 1.6 lb (0.7 kg). To install a PDU:
1. Switch off the customer site circuit breakers for the DC power cables connected to
the input power tray being removed.
2. Make sure that the voltage across the DC power source cable leads is 0 V and that
there is no chance that the cables might become active during installation.
3. Verify that the –48 V 120 A LEDs on the PDU faceplate are off.
4. Switch the circuit breakers on the PDU faceplate to the OFF position (O).
5. Remove the input power trays from the replacement PDU. Store the input power trays.
6. Using both hands, slide the PDU into the chassis until you feel resistance (see Figure
73 on page 197).
Figure 73: Installing a PDU
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7. Push the metal handle up toward the PDU.
8. Tighten the captive screws on the metal handle. Use a Phillips screwdriver.
9. Slide the input power trays into the new PDU (Figure 74 on page 198).
197Copyright © 2012, Juniper Networks, Inc.
Chapter 15: Replacing Packet Transport Switch Hardware Components