Juniper SRX 5800, Hardware Manual

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Table 27: SCB Slot Mapping and Functionality
Slot 2/6 Slot 1 Slot 0 Functionality
– SCB SCB
Routing Engine
Full fabric
SCB SCB SCB
Routing Engine
Redundant fabric
For detailed information about SCBs supported by the SR5800 Services Gateway, see the SRX5400,
SRX5600, and SRX5800 Services Gateway Card Guide at www.juniper.net/documentation/ .
Switch Control Board SRX5K-SCB Specifications
The SRX5K-SCB Switch Control Board (SCB) ( Figure 26 on page 73 ) performs the following functions:
•
Powers on and powers off I/O cards (IOCs) and Services Processing Cards (SPCs)
•
Controls clocking, system resets, and booting
•
Monitors and controls system functions, including fan speed, board power status, PDM status and
control, and the system front panel
•
Provides interconnections to all the IOCs within the chassis through the switch fabrics integrated into
the SCB
SRX5400 and SRX5600 Services Gateways have one SCB each installed and you can install a second SCB
for redundancy. The SRX5800 Services Gateway has two SCBs installed and you can install a third SCB
for switch fabric redundancy.
The host subsystem is composed of a Routing Engine installed directly into a slot on the faceplate of the
SCB. When there is no Routing Engine is a SCB, its slot must be covered with a blank panel.
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