M10I Midplane Description; Figure 3: Midplane - Juniper M10i Hardware Manual

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M10i Midplane Description

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Copyright © 2010, Juniper Networks, Inc.
All manuals and user guides at all-guides.com
M10i System Redundancy on page 4
M10i Router Physical Specifications on page 183
Overview of M10i Router Installation on page 45
The midplane is a panel located in the center of the chassis, running from side to side
and forming the rear of the PIC card cage (see Figure 3 on page 7). All router components
plug directly into the midplane. The midplane contains an EEPROM that stores the serial
number and revision level of the midplane.
The midplane performs the following functions:
Transfer of packets—After being processed by a PIC, an incoming data packet crosses
the midplane to the CFEB or the CFEB-E. The CFEB or CFEB-E performs switching and
forwarding functions and transfers outgoing packets back across the midplane to the
PICs for transmission to the network.
Power distribution—The midplane distributes power to all router components from
the power supplies attached to it. It also provides hot-plug protection for the PIC and
HCM slots.
Signal connectivity—The midplane transports the signals exchanged by system
components for monitoring and control purposes.

Figure 3: Midplane

For chassis serial number information , see "Displaying M10i Router Components and
Serial Numbers" on page 207.
M10i Chassis Description on page 5
M10i Router Description on page 3
General Electrical Safety Warnings for M Series, MX Series, and T Series Routers on
page 167
Chapter 2: M10i Hardware Components
7