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    M5 and M10 Router Components

    Table 1 lists the major M5 and M10 router components and characteristics.

    Table 1: M5 and M10 Router Major Hardware Components

    Component

    Quantity

    Function

    Redundant

    Field-
    Replaceable

    Offline Button

    Cooling system

    1 fan tray (3 fans)

    Cools router components

    Yes

    Hot-removable,
    hot-insertable

    Craft interface

    1

    Displays the status and allows you to perform control functions

    FEB

    1

    Connects PICs to other components and houses shared memory

    Requires router shutdown

    PIC

    1–4 M5 routers
    1–8 M10 routers

    Provides interfaces to various network media

    Hot-removable, hot-insertable

    Yes

    Power supply

    2 AC or 2 DC

    Distributes needed voltages to components

    Yes

    Hot-removable, hot-insertable

    Routing Engine

    1

    Handles routing protocols and maintains routing tables

    Requires router shutdown

    Field-replaceable units (FRUs) are router components that can be replaced at the customer site. Replacing FRUs requires minimal router downtime. There are three types of FRUs:

    • Hot-removable and hot-insertable—You can remove and replace the component without powering down the router or interrupting the routing functions.
    • Hot-pluggable—You can remove the component without powering down the router, but routing functions are interrupted until the replacement is installed.
    • Requires router shutdown—You must power down the router before removing the component.
     
     

    Published: 2012-08-20