Juniper SRX 5800, Hardware Manual

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NOTE: If output power is not load-balancing correctly in the same zone on a services gateway
with a high-capacity AC or DC power supply module, connect two feeds and change the DIP
switch to 1 to boost the voltage on the power supply module.
Each High Capacity AC or DC power supply accepts two AC or DC feeds in two unique AC or DC
receptacles. It is possible to operate with one feed, but there is a reduction in the power supply output.
The DIP switch must be set according to the number of AC or DC feeds that are present for the power
supply.
Figure 156: AC Power Input Mode Switch
g006057
0
1
1
0
•
Position – 0 indicates that only one AC or DC feed is provided.
•
Position – 1 indicates that two AC or DC feeds are provided.
The following example shows what should be the DIP switch position based on the number of AC or DC
input feeds expected and connected to the PEM:
1. Issue the CLI show chassis power command and check how many feeds are connected.
The sample out put below is the output of a chassis with AC power supplies:
user@host
# run show chassis power
PEM 0:
State: Online
AC input: OK (2 feed expected, 2 feed connected)
Capacity: 4100 W (maximum 4100 W)
DC output: 798 W (zone 0, 14 A at 57 V, 19% of capacity)
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