Juniper MX480 Hardware Manual page 151

MPCs are hot-removable and hot-insertable. When you install an MPC in an operating router, the Routing
Engine downloads the MPC software, the MPC runs its diagnostics, and the Packet Forwarding Engines
housed on the MPC are enabled. Forwarding on other MPCs continues uninterrupted during this process.
Figure 37 on page 152 shows a typical MPC supported on the MX480 router. For more information about
MPCs, see the MX Series Interface Module
Figure 36: Typical MPC Supported on the MX Series Router
MPC (empty)
Figure 37: MPC Installed Horizontally in the MX480 Router
MPC
SC B
SC B
Reference.
MX 48 0
152