Installing A Ptx5000 120-A Dc Pdu Power Cable - Juniper PTX5000 Hardware Manual

10. Remove the DC source power cable lug from the DC power terminal stud.
Figure 236: Disconnecting the DC Source Power Cable Lugs to an Input Power Tray

Installing a PTX5000 120-A DC PDU Power Cable

To install a DC power cable:
1. 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. Verify that the –48 V 120 A LEDs on the PDU
faceplate are off.
2. Switch the circuit breaker for the input power tray on the PDU faceplate to the off (O) position.
3. Route the positive (+) DC source power cable lug through the left cable restraint.
4. Secure the positive (+) DC source power cable lug to the RTN (return) terminal, located on the left,
with a nut.
Use a 7/16-in. (11-mm) nut driver to tighten the nut.
5. Route the negative (–) DC source power cable lug through the right cable restraint.
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