MX480 Host Subsystem LEDs
Each host subsystem has three LEDs that display its status. The host subsystem LEDs
are located on the upper left of the craft interface. For more information, see “Host
Subsystem LEDs on the MX480 Craft Interface” on page 16.
Related
Documentation
MX480 Host Subsystem Description on page 25•
• Maintaining the MX480 Host Subsystem on page 418
• Taking an MX480 Host Subsystem Offline
MX480 Midplane Description
The midplane is located toward the rear of the chassis and forms the rear of the card
cage (see Figure 11 on page 26). The line cards and SCBs install into the midplane from
the front of the chassis, and the power supplies install into the midplane from the rear
of the chassis. The cooling system components also connect to the midplane.
The midplane performs the following major functions:
•
Data path—Data packets are transferred across the midplane between the line cards
through the fabric ASICs on the SCBs.
•
Power distribution—The router power supplies connect to the midplane, which
distributes power to all the router components.
•
Signal path—The midplane provides the signal path to the line cards, SCBs, Routing
Engines, and other system components for monitoring and control of the system.
Figure 11: Midplane
Copyright © 2017, Juniper Networks, Inc.26
MX480 3D Universal Edge Router Hardware Guide
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