Juniper Networks MX480 - Manual (Page 34)

Figure 4: Midplane
Related
Documentation
MX480 Router Description on page 3 •
• MX480 Chassis Description on page 7
• MX480 Dense Port Concentrator (DPC) Description on page 10
• MX480 Modular Port Concentrator (MPC) Description on page 13
• MX480 Switch Control Board (SCB) Description on page 26
• MX480 Flexible PIC Concentrator (FPC) Description on page 16
• MX480 Power System Description on page 41
MX480 Dense Port Concentrator (DPC) Overview
• MX480 Dense Port Concentrator (DPC) Description on page 10
• MX480 Dense Port Concentrator (DPC) LEDs on page 12
MX480 Dense Port Concentrator (DPC) Description
A Dense Port Concentrator (DPC) is optimized for Ethernet density (see Figure 5 on
page 11 ). The DPC assembly combines packet forwarding and Ethernet interfaces on a
single board, with either two or four 10-Gbps Packet Forwarding Engines. Each Packet
Forwarding Engine consists of one I-chip for Layer 3 processing and one Layer 2 network
processor. The DPCs interface with the power supplies and Switch Control Boards (SCBs).
The DPC slots are located in the front of the router (see Figure 5 on page 11 ). The router
has six dedicated DPC slots that are numbered 0 through 5 . A DPC can be installed in
any DPC slot on the router. You can install any combination of DPC types in the router.
If a slot is not occupied by a DPC, a DPC blank panel must be installed to shield the empty
slot and to allow cooling air to circulate properly through the router.
Copyright © 2013, Juniper Networks, Inc. 10
MX480 3D Universal Edge Router Hardware Guide