Connect Power To A Dc-Powered Firewall - Juniper SRX5600 Manual

Connect Power to a DC-Powered Firewall

This procedure addresses connecting power to firewalls equipped with either standard-capacity or high-
capacity DC power supplies.
WARNING: To meet safety and electromagnetic interference (EMI) requirements and to
ensure proper operation, you must properly ground the firewall chassis before
connecting power. See
instructions.
NOTE: The firewall must be running Junos OS Release 12.1X44-D10 or later in order to use
high-capacity AC or DC power supplies.
Table 3 on page 19 describes the firewall input voltage requirements.
Table 3: DC Power System Input Voltage
Item
DC input voltage
1. Ensure that the voltage across the DC power source cable leads is 0 V and that there is no chance
that the cable leads might become active during installation.
2. For high-capacity DC power supplies, check the setting of the input mode switch:
a. Move or remove the metal plate that covers the input mode switch. On some power supply
versions, the cover pivots at one end, and you can simply swing it up out of the way. On other
versions, the cover is secured with two captive screws that you must loosen.
b. Use a sharp, nonconductive object to slide the switch to the desired position. Set the input mode
switch to position 0 for 60-A input and position 1 for 70-A input. This setting is used by the
power management software and must be set on the power supply. See
"Step 4: Connect the Grounding Cable" on page 13
Specification
Operating range: –40.5 to –72 VDC
for
Figure 11 on page 20.
19