Hardware Component Overview
document that depict the Routing Engine. These differences do not affect Routing
Engine installation and removal or functionality.
For specific information about Routing Engine components (for example, the
amount of SDRAM), issue the
show chassis routing-engine
command.
NOTE:
If two Routing Engines are installed, they must both be the same version.
Figure 9: Routing Engine
JUNIP
ER NE
TWOR
KS LAB
EL THIS
SIDE
1596
Extractor clip
PC card slot
RESET
HD
P
C
C
A
R
D
Extractor clip
PC card slot
LED
Extractor clip
Extractor clip
LED
Routing Engine 333
Routing Engine 600
Miscellaneous Control Subsystem (MCS)
The Miscellaneous Control Subsystem (MCS) works with its companion Routing
Engine to provide control and monitoring functions for router components. It also
generates a clock signal for the SONET/SDH interfaces on the router.
One or two host modules (paired MCS and Routing Engine) can be installed
into the midplane from the rear of the chassis, as shown in Figure 3. Only
one host module is active at a time, with the optional second host module in
standby mode. For more information about host module interdependence
and redundancy, see Host Module on page 22.
The MCS performs the following functions:
Monitoring and control of router components—The MCS collects statistics
from all sensors in the system. When it detects a failure or alarm condition,
it sends a signal to the Routing Engine, which generates control messages
Host Module
25
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 ...