Hardware Component Overview
Figure 4: Midplane
1171
Midplane
FPC
card cage
R
Physical Interface Cards (PICs)
Physical Interface Cards (PICs) physically connect the router to network
media. They are housed in Flexible PIC Concentrators (FPCs); for more
information about FPCs, see “Flexible PIC Concentrators (FPCs)” on page
14. (Quad-wide PICs, such as the OC-192/STM-64 SONET/SDH PIC, are
exceptions. Such PICs occupy an entire FPC slot in the chassis and insert
directly into the slot rather than into an FPC card carrier.)
PICs receive incoming packets from the network and transmit outgoing packets
to the network, performing framing and line-speed signaling for their media
type as required. PICs also encapsulate outgoing packets received from the
FPCs before transmitting them. The controller ASIC on each PIC performs
additional control functions specific to the PIC media type.
The router supports various PICs, including ATM, Channelized, Gigabit
Ethernet, IP Services, and SONET/SDH interfaces. For complete PIC
specifications, see the
M160 Internet Router PIC Guide
.
Packet Forwarding Engine
13
Summary of Contents for Internet Router M160
Page 12: ...M160 Internet Router Hardware Guide xii Table of Contents ...
Page 16: ...M160 Internet Router Hardware Guide xvi List of Figures ...
Page 18: ...M160 Internet Router Hardware Guide xviii List of Tables ...
Page 24: ...M160 Internet Router Hardware Guide xxiv Requesting Support ...
Page 26: ...2 Product Overview ...
Page 30: ...M160 Internet Router Hardware Guide 6 Safety Requirements Warnings and Guidelines ...
Page 66: ...M160 Internet Router Hardware Guide 42 Cable Management System ...
Page 80: ...M160 Internet Router Hardware Guide 56 Routing Engine Architecture ...
Page 82: ...58 Initial Installation ...
Page 104: ...M160 Internet Router Hardware Guide 80 Unpacking the Router ...
Page 148: ...M160 Internet Router Hardware Guide 124 Configuring the JUNOS Internet Software ...
Page 150: ...126 Hardware Maintenance Replacement and Troubleshooting Procedures ...
Page 242: ...M160 Internet Router Hardware Guide 218 Troubleshooting the Power System ...
Page 244: ...220 Appendixes ...
Page 292: ...M160 Internet Router Hardware Guide 268 Packing Components for Shipment ...
Page 301: ...Part 5 Index Index 277 ...
Page 302: ...278 Index ...