Juniper MX2010 Hardware Manual page 94

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MICs receive incoming packets from the network and transmit outgoing packets to the network. During
this process, each MIC performs framing and high-speed signaling for its media type. Each MPC is equipped
with up to four Junos Trio chipsets, which perform control functions tailored to the MPC's media type.
The MX2010 router supports up to 10 MPCs. For power requirements, see "Calculating DC Power
Requirements for MX2010 Routers" on page 204 and "Calculating AC Power Requirements for MX2010
Routers" on page 180.
The router has 10 dedicated line-card slots for MPCs. MPCs install vertically in the front of the router.
The dedicated slots are numbered 0 though 9 (left to right). An MPC can be installed in any line-card slot.
The user can install any combination of MPC types in the router.
When an MPC slot is not occupied by an MX2000 MPC or an adapter card with MPC, a blank MX2000
panel needs to be installed.
MPCs are hot-removable and hot-insertable. When the user installs an MPC in an operating router, the
CB-RE downloads the MPC software, the MPC runs its diagnostics, and enables the Packet Forwarding
Engines housed on the MPC. Forwarding on other MPCs continues uninterrupted during this process.
Figure 28 on page 71 shows a typical MPC supported on the MX2010 router. Figure 29 on page 72 shows
an MPC installed vertically in the MX2010 router. For more information about MPCs, see the MX Series
Interface Module Reference.
Figure 28: Typical MPC Supported on the MX2010 Router