Table 32: Sample Power Requirements For An Srx5400 Services Gateway With - Juniper SRX5400 Hardware Manual

SRX5400 Services Gateway Hardware Guide
Table 31: Calculating System Thermal Output (continued)
Power Supply
SRX5400 DC
Table 32: Sample Power Requirements for an SRX5400 Services Gateway with SCB3, IOC3,
and RE2
Chassis Component
Base system
Fan tray
MPC - slot 1/0
SPC - slots 1 and 2
SCB 0
Total power requirement
Total power requirement excluding cooling system
96
Thermal Output (BTUs per hour)
2138 * 3.41 = 7291 BTU/hr
The following sample configuration shows an SRX5400 Services Gateway chassis with
various power supplies and:
Two SRX5K-SPC-4-15-320 (SPC2) Services Processing Card (SPC) (slots 1 and 2)
One IOC3 (SRX5K-MPC3-40G10G or SRX5K-MPC3-100G10G) (slot 1/0)
One switch control board SRX5K-SCB3 (SCB3) and one Routing Engine RE2 installed
in SCB slot 0
Calculate the power requirements (usage) as shown in
1.
Part Number
SRX5400-CHAS
SRX5400-FAN
IOC3
SCP2
SCB3
RE2
Evaluate the power budget. In the case of a DC-powered chassis, evaluate the budget
2.
for each zone. In this step, we check the required power against the maximum output
power of available power supply options.
NOTE: The power for the cooling system comes from a different tap on
the power supply, reserved for the cooling system only. The cooling system
power requirement does not need to be deducted from the output power
budget of the power supply.
Table 33 on page 97 lists the power supplies, their maximum output power, and unused
power (or a power deficit) for an AC-powered services gateway.
Table 32 on page 96.
Power Requirement
40 W
75 W
607 W
585 W * 2 = 1170 W
300 W
90 W
2282 W
2207 W
Table 34 on page 97
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