Figure 81: Terminal Jumper - Juniper T4000 Hardware Manual

Copyright © 2013, Juniper Networks, Inc.
To connect 80-A DC source power cables to six inputs using a terminal jumper, follow
this procedure for each DC power supply:
Check your planned hardware configuration, and verify that three 80-A DC source
1.
power cables will provide sufficient power. See the DC power requirements for your
router for more information.
Verify that a properly rated customer site circuit breaker for each DC power cable has
2.
been installed. See the DC power electrical safety guidelines for your router for more
information.
Switch off the customer site circuit breakers. Ensure that the voltage across the DC
3.
power source cable leads is 0 V and that there is no chance that the cable leads might
become active during installation.
Verify that a licensed electrician has attached appropriate cable lugs to the DC power
4.
cables. See the DC power cable and lug specifications for your router for more
information.
Switch the power switch on the power supply faceplate to the standby position.
5.
Remove the clear plastic cover protecting the terminal studs on the faceplate.
6.
NOTE: You will replace this cover with the new cover provided in the
terminal jumper kit (model number PWR-T-BUS-BAR-S). The new cover
is labeled 2 in
Remove the nut and washer from each power terminal stud to be connected. If no
7.
washers and nuts are already installed, they should be in the accessory box.
Remove the captive screws on all three cable restraints on the right edge of the power
8.
supply faceplate (using a Phillips (+) screwdriver, number 2).
Place one terminal jumper over the negative (–) DC
9.
on the right.
NOTE: The terminal jumpers are located in the terminal jumper kit (model
number PWR-T-BUS-BAR-S).

Figure 81: Terminal Jumper

Place a washer, and then a nut on the negative (–) DC
10.
Chapter 13: Providing Power to the T4000 Router
Figure 86 on page 140.
and terminals
INPUT 0 INPUT 1
terminal.
INPUT 0
135