Table 16: TX Matrix Plus Router Major Hardware Components (continued)
Offline
Button
Field-
ReplaceableRedundantFunctionQuantityComponent
YesHot-pluggableYesMonitors and controls router
components
1–2Control Board
—Hot-removable,
hot insertable
YesCools router components2 front fan
trays,
4 rear fan
trays,
3 front air
filters
Cooling system
—Hot-removable,
hot-insertable
—Displays status and troubleshooting
information, and provides an interface
for controlling router functions
1Craft interface
—Hot-removable,
hot-insertable
YesDistributes needed voltages to router
components
2Power supply (DC
only)
YesHot-removable,
hot-insertable
YesProvides routing functions and routing
tables to each T1600 router in the
routing matrix.
1–2Routing Engine
YesHot-removable,
hot-insertable
YesProvides switch fabricA TXP-4
configuration
contains ten
TXP-F13 SIBs,
two for each
data
switching
plane
A TXP-4
configuration
contains four
TXP-F2 SIBs
for each data
switching
plane (four
planes)
SIB
Field-replaceable units (FRUs) are router components that can be replaced at the
customer site. Replacing FRUs requires minimal router downtime. There are three types
of FRUs:
•
Hot-removable and hot-insertable—You can remove and replace the component
without powering down the router or interrupting the routing functions.
•
Hot-pluggable—You can remove the component without powering down the router,
but routing functions are interrupted until the replacement is installed.
•
Requires router shutdown—You must power down the router before removing the
component.
Copyright © 2012, Juniper Networks, Inc.46
M Series and T Series Routers Monitoring and Troubleshooting Guide
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