Figure 74: Connecting Power To The Four-Input 240-A Dc Power Supply - Juniper T640 Hardware Manual

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Copyright © 2010, Juniper Networks, Inc.
CAUTION: All inputs on the DC power supply in slot
powered by dedicated power feeds derived from feed A, and all inputs on
the DC power supply in slot
feeds derived from feed B. This configuration provides the commonly
deployed A/B feed redundancy for the system.
Loosen the captive screws on the cable restraint on the right edge of the power supply
7.
faceplate (using a Phillips (+) screwdriver, number 2).
Route the positive and negative DC power cables through the cable restraint.
8.
Tighten the cable restraint captive screws to hold the power cables in place.
9.
Verify that the power cabling is correct, that the power cables are not touching or
10.
blocking access to router components, and that they do not drape where people could
trip on them.
Replace the clear plastic cover over the terminal studs on the faceplate.
11.

Figure 74: Connecting Power to the Four-Input 240-A DC Power Supply

Cable lug
Locking
washer
Nut
T640 Power System Description on page 49
T640 DC Power Distribution on page 353
T640 DC Power Cable Specifications on page 352
Chapter 13: Providing Power to the T640 Router
PEM1 must be powered by dedicated power
Terminal studs
must be
PEM0
129