Juniper T640 Hardware Guide

install into the midplane from the rear of the chassis. The power supplies and cooling
system components also connect to the midplane.
The midplane performs the following major functions:
•
Data path—Data packets are transferred across the midplane from the Packet
Forwarding Engine on the originating FPC to the SIBs, and from the SIBs across the
midplane to the Packet Forwarding Engine on the destination FPC.
•
Power distribution—The router power supplies are connected to the midplane, which
distributes power to all the router components.
•
Signal path—The midplane provides the signal path to the FPCs, SIBs, Routing Engines,
and control boards, and other system components for monitoring and control of the
system.
Figure 6: T640 Midplane
g001506
FPC card cage
Midplane
For chassis serial number information , see “Locating T640 Component Serial Numbers
Using the CLI” on page 485.
Copyright © 2017, Juniper Networks, Inc.18
T640 Core Router Hardware Guide

Juniper T640 Specifications

General

Brand	Juniper
Model	T640
Category	Network Router
Language	English