Figure 99: Connecting Negative (-) Dc Power Cable To Input 2 - Juniper T640 Hardware Manual

Copyright © 2013, Juniper Networks, Inc.
Attach the negative (–) DC source power cable lugs to the
terminal on the right. Secure the cable lug to the terminal studs, first with the washer,
then with the nut. Using a 7/16-in. (11 mm) nut driver, tighten the nut. Apply between
23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm) of torque to each nut.
Figure 99: Connecting Negative (–) DC Power Cable to INPUT 2
Route the positive (+) DC source power cables for
11.
restraint. The middle cable restraint is marked as follows from top to bottom:
, , , and
2 RTN 2 RTN 5 INPUT 5
NOTE: You must route the cables as marked to be able to replace the
clear plastic cover over the terminal studs.
Attach the positive (+) DC source power cable lug to the
the left. Secure the cable lug to the terminal stud, first with the washer, then with the
nut. 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 the nut.
Replace the middle cable restraint, and tighten the captive screw to hold the power
12.
cables for and
INPUT 2
Route the positive (+) DC source power cables for
13.
over the largest cable restraint on the left. The left cable restraint is marked as follows
from top to bottom
RTN 0
NOTE: You must route the cables as marked to be able to replace the
clear plastic cover over the terminal studs.
Attach the positive (+) DC source power cable lugs to the RTN terminals on the left:
, , , and
RTN 0 RTN 1 RTN 3
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
14.
for RTN 0 , RTN 1 , RTN 3
Chapter 13: Providing Power to the T640 Router
,
in place.
RTN 2
, , , and
RTN 1 RTN 3 RTN 4
. Secure the cable lugs to the terminal studs, first with
RTN 4
, and RTN 4 in place.
–48 V (input)
INPUT 2
over the middle cable
RTN 2
RTN 2 (return) terminal on
, , , and
RTN 0 RTN 1 RTN 3 RTN 4
,
INPUT
157