Figure 106: Connecting Negative (-) Dc Power Cables To Input 0, Input; Figure 107: Connecting Negative (-) Dc Power Cable To Input 2 - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide
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Figure 106: Connecting Negative (–) DC Power Cables to INPUT 0, INPUT 1,
INPUT 3, and INPUT 4
Replace the smallest cable restraint on the far right, and tighten the captive screw to
9.
hold the power cables for
Route the negative (–) DC source power cables for
10.
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 cable in the location as marked to be able to
replace the clear plastic cover over the terminal studs.
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 107: 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
INPUT 0 , INPUT 1 , INPUT 3
INPUT 2
.
RTN 2
,
, and INPUT 4 in place.
, through the middle cable
INPUT
INPUT 2 –48 V (input)
over the middle cable
INPUT
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