Table 29: Calculating Power Budget For Srx5800 Services Gateway With Scb1 - Juniper SRX5800 Hardware Manual

SRX5800 Services Gateway Hardware Guide
Table 29: Calculating Power Budget for SRX5800 Services Gateway with SCB1 and RE1
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)
110
For the power consumption specifications of specific SRX5800 services gateway
cards, see the
SRX5400, SRX5600, and SRX5800 Services Gateway Card Guide
www.juniper.net/techpubs/
Evaluate the power budget, including the budget for each zone, if applicable. In this
2.
step, we check the required power against the maximum output power of available
power supply options.
Table 29 on page 110 lists the power supplies, their maximum output power, and
unused power (or a power deficit).
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 3990 W.
2
For this configuration, output power is 4080 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
Power
Unused Power
Power exceeded –
(non-zoned; 5100
W - 8070 W =
-2970 W power
exceeded)
– Power
exceeded
4100-3990=110
W
– Power
exceeded
– Power
exceeded
4100-3990=110
W
Table 30 on page 111
Copyright © 2015, Juniper Networks, Inc.
at
Zone 1 Unused
1 2
Power
–
Power exceeded
4100-4080=20 W
Power exceeded
Power exceeded
4100-4080=20 W
.