Figure 73: Dc Power Supply Input Mode Switch; Figure 74: Installing A Dc Power Supply - Juniper SRX5400 Hardware Manual

Copyright © 2017, Juniper Networks, Inc.
Switch the circuit breaker on the power supply faceplate to the
3.
For a DC power supply, check the setting of the input mode switch. Use a sharp,
4.
nonconductive object to slide the switch to the desired position. Set the input mode
switch to position 0 for 60-A input or position
the power management software and must be set on the power supply. See
Figure 73 on page 159.

Figure 73: DC Power Supply Input Mode Switch

Using both hands, slide the power supply straight into the chassis until the power
5.
supply is fully seated in the chassis slot. The power supply faceplate should be flush
with any adjacent power supply faceplate (see

Figure 74: Installing a DC Power Supply

Tighten the captive screws on the lower edge of the power supply faceplate.
6.
Remove the clear plastic cover protecting the terminal studs on the faceplate.
7.
Remove the nuts and washers from the terminal studs.
8.
Secure each power cable lug to the terminal studs, first with the washer, then with
9.
the nut. Apply between 23 lb-in. (2.6 Nm) and 25 lb-in. (2.8 Nm) of torque to each
nut. (see Figure 75 on page
Attach the positive (+) DC source power cable lug to the
a.
Attach the negative (–) DC source power cable lug to the
b.
Chapter 19: Installing Additional Components
1 for 70-A input. This setting is used by
Figure 74 on page
160).
position .
OFF O
159).
RTN (return) terminal.
(input) terminal.
–48V
159