Figure 103: Connecting Positive (+) Dc Power Cables To Rtn 0, Rtn 1, Rtn - Juniper T640 Hardware Manual

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the washers, then with the nuts. Using a 7/16-in. (11 mm) nut driver, tighten the nuts.
Apply between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm) of torque to each nut.
Replace the left cable restraint, and tighten the captive screw to hold the power cables
10.
for , ,
RTN 0 RTN 1 RTN 3
Figure 103: Connecting Positive (+) DC Power Cables to RTN 0, RTN 1,
RTN 3, and RTN 4
Verify that the power cabling is correct, that the power cables are not touching or
11.
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.
12.
Tools and Parts Required to Provide Power to the T640 Router on page 143
Connecting DC Power to the T640 Router (Five 60-A Inputs to Six-Input DC Power
Supplies) on page 154
Connecting DC Power to the T640 Router (Six 60-A Inputs to Six-Input DC Power
Supplies) on page 150
Powering On the T640 Router
Configuring DC Power on a T640 Router on page 175
Troubleshooting the T640 Power System on page 207
T640 DC Power Cable and Lug Specifications on page 432
T640 General Electrical Safety Guidelines and Electrical Codes on page 404
Site Electrical Wiring Guidelines for Juniper Networks Devices on page 426
Chapter 13: Providing Power to the T640 Router
, and in place.
RTN 4
161