Juniper PTX5000 Quick Start Manual page 27

Figure 15: Connecting the DC Source Power Cable Lugs to an Input Power Tray
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CAUTION:
The power source cables might be labeled (+) and (–) to indicate their polarity. There
is no standard color coding for DC power cables. The color coding used by the external
DC power source at your site determines the color coding for the leads on the power
cables that attach to the terminal studs on each power supply.
CAUTION:
power feeds derived from feed A, and all inputs on the DC PDU in slot PDU1 must
be powered by dedicated power feeds derived from feed B. This configuration provides
the commonly deployed A/B feed redundancy for the system.
13. Route the positive (+) DC source power cable through the cable restraint, and connect it to the RTN
–2 input terminal (see
secure the cable lug to the input terminal.
14. Route the negative (–) DC source power cable through the cable restraint, and connect it to the -48 V
–1 input terminal (see
secure the cable lug to the input terminal.
You must ensure that power connections maintain the proper polarity.
All inputs on the DC PDU in slot PDU0 must be powered by dedicated
Figure 14 on page 26). Using a 7/16-in. (11-mm) nut driver, tighten the nut to
Figure 14 on page 26). Using a 7/16-in. (11-mm) nut driver, tighten the nut to
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