Table 33: Calculating Power Budget For Srx5800 Services Gateway With Scb2 - Juniper SRX5800 Hardware Manual

SRX5800 Services Gateway Hardware Guide
Table 33: Calculating Power Budget for SRX5800 Services Gateway with SCB2 and RE2
Maximum
Output Power of
Power Supply Power Supply
SRX5800 AC 1700 W
standard-capacity
SRX5800 AC 1700 W (one feed)
high-capacity
4100 W (two
feeds)
SRX5800 DC 2800 W
normal-capacity
SRX5800 DC 1700 W (one feed)
high-capacity
4100 W (two
feeds)
114
Maximum
Output Power for
System
5100 W
3400 W (one
feed)
8200 W (two
feeds)
5600 W
3400 W (one
feed)
8200 W (two
feeds)
1
For this configuration, output power is 4040 W.
2
For this configuration, output power is 4130 W.
Calculate input power. In this step, the input power requirements for the example
3.
configuration are calculated. To do this, divide the total output requirement by the
efficiency of the power supply as shown in
NOTE: Normal-capacity AC and DC power supplies are not included in
the following table, because their power budget was exceeded in the
sample configuration.
Zone 0 Unused
Nonzoned
1
Power
Unused Power
Power –
exceeded
(non-zoned;
5100 W - 8170
W = -3070 W
power
exceeded)
– Power exceeded
4100-4040=60 W
– Power exceeded
– Power exceeded
4100-4040=60 W
Table 34 on page
Copyright © 2015, Juniper Networks, Inc.
Zone 1 Unused
2
Power
–
Power exceeded
4100-4130=-30 W
NOTE: Power is
exceeded.
Therefore, there is
not enough power
to cover redundancy
with this
configuration.
Power exceeded
Power exceeded
4100-4130=-30 W
NOTE: Power is
exceeded.
Therefore, there is
not enough power
to cover redundancy
with this
configuration.
115.