Power System Description; Srx5400 Services Gateway Power System Overview - Juniper SRX5400 Hardware Manual

CHAPTER 6

Power System Description

SRX5400 Services Gateway Power System Overview

Copyright © 2017, Juniper Networks, Inc.
SRX5400 Services Gateway Power System Overview on page 81
SRX5400 Services Gateway AC Power Supply on page 83
SRX5400 Services Gateway AC Power Supply LEDs on page 83
SRX5400 Services Gateway DC Power Supply on page 84
SRX5400 Services Gateway DC Power Supply LEDs on page 85
The services gateway uses either AC or DC power supplies.
NOTE: The SRX5400 Services Gateway and SRX5600 Services Gateway
use the same power supply model.
The services gateway is configurable with two or three AC power supplies by default
(optionally, a fourth power supply can be added) or two or four DC power supplies. The
power supplies are located horizontally at the rear of the chassis in slots
PEM3 (left to right). The power supplies connect to the midplane, which distributes the
different output voltages produced by the power supplies to the services gateway
components, depending on their voltage requirements. Each power supply is cooled by
its own internal cooling system.
CAUTION: The services gateway cannot be powered from AC and DC power
supplies simultaneously. The first type of power supply detected by the
services gateway when initially powered on determines the type of power
supply allowed by the services gateway. All installed power supplies of the
other type are disabled by the services gateway. If you install a power supply
of the other type while the services gateway is operating, the services gateway
disables the power supply and generates an alarm.
Redundant power supplies are hot-removable and hot-insertable. When you remove a
power supply from a services gateway that uses a nonredundant power supply
configuration, the services gateway might shut down depending on your configuration.
through
PEM0
81