Juniper SRX 5800, Hardware Manual

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NOTE: The high-capacity power supply will operate with only one of its two AC inlets connected
to an AC power feed. However, its DC output will be limited to a maximum of 1700 W. We
recommend that you connect two AC power feeds to each high-capacity AC power supply.
NOTE: The services gateway must be running Junos OS Release 10.4 or later in order to use
high-capacity AC power supplies.
Each high-capacity AC power supply has an input mode switch, covered by a small metal plate. The input
mode switch tells the system the number of AC power feeds it should expect. The input mode switch
settings are described in Table 15 on page 52 . The default setting is 1.
Table 15: High-Capacity AC Power Supply Input Mode Switch Settings
Result AC Inputs
Mode Switch
Setting
DC output of 4100 W
DC OK LED lights
Both AC inlets powered 1
DC output of 1700 W
DC OK LED lights
Only one AC inlet powered
DC output of 4100 W
DC OK LED lights
Both AC inlets powered 0
DC output disabled
DC OK LED unlit
Only one AC inlet powered
NOTE: We recommend that you set the input mode switch to 1 and connect two AC input feeds
to each high-capacity AC power supply.
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