Scb Slots; Scb Redundancy; Scb Components; Figure 11: Scb - Juniper SRX 5600 Hardware Manual

SRX 5600 Services Gateway Hardware Guide

Figure 11: SCB

SCB Slots

You must install at least one SCB in the services gateway as part of a host subsystem.
You can install a second SCB for redundancy.
The SCBs install horizontally into the front of the chassis in the slots labeled
1

SCB Redundancy

If two SCBs are installed, one SCB functions as the master SCB and the other as its
backup. If the master fails or is removed, the backup restarts and becomes the master.

SCB Components

Each SCB consists of the following components:
18
Switch Control Board
. If any slots are empty, you must install a blank panel.
Chassis management Ethernet switch.
I2C bus logic, used for low-level communication with each component.
Component redundancy circuitry.
Control Board/Routing Engine mastership mechanism.
Gigabit Ethernet switch that is connected to the embedded CPU complex on all
components.
Switch fabric—Provides the switching functions for the I/O cards (IOC)s.
and
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