CHAPTER 5
Power System Description
•
SRX240 Services Gateway Power Supply on page 25
SRX240 Services Gateway Power Supply
This topic includes the following sections:
•
AC Power Supply (SRX240 Services Gateway) on page 25
•
DC Power Supply (SRX240 Services Gateway with DC Power Supply Model) on page 25
AC Power Supply (SRX240 Services Gateway)
The SRX240 Services Gateway AC power supply models use a fixed, internal AC power
supply. The power supply distributes the different output voltages to the device
components according to their voltage requirements. The power supply is fixed in the
chassis and is not field-replaceable.
The AC power supply has a single AC appliance inlet that requires a dedicated AC power
feed.
DC Power Supply (SRX240 Services Gateway with DC Power Supply Model)
The SRX240 Services Gateway with DC power supply models have a fixed, internal DC
power supply. The DC power supply available on the back panel of the chassis has dual
redundant power feeds and provides full power redundancy in the device. The power
supply is fixed in the chassis and is not field-replaceable.
The DC power supply feed has a terminal block that provides a single DC input (-48 VDC
and return) and requires a dedicated 10 A (-48 VDC) circuit breaker. The DC power feed
includes two LEDs that indicate the status of the power supply. For more details about
the LEDs, see
“SRX240 Services Gateway LEDs” on page 18
.
NOTE:
Each power feed requires its own dedicated circuit breaker to be a
fully redundant DC source.
NOTE:
DC-powered devices are intended for installation only in a restricted
access location.
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Copyright © 2015, Juniper Networks, Inc.
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