Srx5600 Services Gateway Component Redundancy - Juniper SRX5600 Hardware Manual

Table 3: Field-Replaceable Units
Field-Replaceable Units (FRUs)
Air filter
Fan tray
Craft interface
AC and DC power supplies (if redundant)
SFP and XFP transceivers
IOCs
Flex IOCs
Port modules of the Flex IOCs
Routing Engine
SCBs
SPCs
MPCs
MICs

SRX5600 Services Gateway Component Redundancy

The following major hardware components are redundant:
SCBs—The host subsystem consists of a Routing Engine installed in an SCB. The device must have one
host subsystem installed. You can install a second SCB for redundancy. If a second SCB is installed, the
host subsystem SCB functions as the master and the other functions as the backup. If the SCB of the
host subsystem fails, the other SCB takes over as the master.
Power supplies—In the low-line (110 V) AC power configuration, the device contains three or four AC
power supplies, located horizontally at the rear of the chassis in slots PEM0 through PEM3 (left to right).
Each AC power supply provides power to all components in the device. When three power supplies are
present, they share power almost equally within a fully populated system. Four AC power supplies
Action
You need not power off the services gateway to install, remove, or
replace any of these FRUs.
Power off the services gateway to install, remove, or replace any of
these FRUs.
27