Juniper SRX 5800, Hardware Manual

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NOTE: SRX5K-SCB4 is not supported on SRX5400 Services Gateways.
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Routing Engine
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SRX5K-RE-13-20–from Junos OS Release 9.2 to 12.3X48
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SRX5K-RE-1800X4–from Junos OS Release 12.1X47-D15 and later
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SRX5K-RE3-128G–from Junos OS Release 19.3R1 and later
NOTE: You can only configure the following combination of Routing Engine and SCB within a
host subsystem:
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SRX5K-RE-13-20 and SRX5K-SCB
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SRX5K-RE-1800X4 and SRX5K-SCBE
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SRX5K-RE-1800X4 and SRX5K-SCB3
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SRX5K-RE-1800X4 and SRX5K-SCB4
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SRX5K-RE3-128G and SRX5K-SCB3 or SRX5K-SCB4
The host subsystem has three LEDs that display its status. The host subsystem LEDs are located in the
middle of the craft interface.
Switch Control Board SRX5K-SCB Overview
The Switch Control Board (SCB) provides the following functions:
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Powers on and powers off IOCs and SPCs
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Controls clocking, system resets, and booting
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Monitors and controls system functions, including fan speed, board power status, PDM status and
control, and the system front panel
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Provides interconnections to all the IOCs within the chassis through the switch fabrics integrated into
the SCB
When the SCB is part of a host subsystem, the Routing Engine installs directly into a slot on the SCB (see
Figure 25 on page 71 ).
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