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
Содержание Internet Router M160
Страница 12: ...M160 Internet Router Hardware Guide xii Table of Contents ...
Страница 16: ...M160 Internet Router Hardware Guide xvi List of Figures ...
Страница 18: ...M160 Internet Router Hardware Guide xviii List of Tables ...
Страница 24: ...M160 Internet Router Hardware Guide xxiv Requesting Support ...
Страница 26: ...2 Product Overview ...
Страница 30: ...M160 Internet Router Hardware Guide 6 Safety Requirements Warnings and Guidelines ...
Страница 66: ...M160 Internet Router Hardware Guide 42 Cable Management System ...
Страница 80: ...M160 Internet Router Hardware Guide 56 Routing Engine Architecture ...
Страница 82: ...58 Initial Installation ...
Страница 104: ...M160 Internet Router Hardware Guide 80 Unpacking the Router ...
Страница 148: ...M160 Internet Router Hardware Guide 124 Configuring the JUNOS Internet Software ...
Страница 150: ...126 Hardware Maintenance Replacement and Troubleshooting Procedures ...
Страница 242: ...M160 Internet Router Hardware Guide 218 Troubleshooting the Power System ...
Страница 244: ...220 Appendixes ...
Страница 292: ...M160 Internet Router Hardware Guide 268 Packing Components for Shipment ...
Страница 301: ...Part 5 Index Index 277 ...
Страница 302: ...278 Index ...