Tx Matrix Plus Hardware Component Overview; Tx Matrix Plus Component Redundancy - Juniper TX MATRIX PLUS Hardware Manual

CHAPTER 2
TX Matrix Plus Hardware Component
Overview

TX Matrix Plus Component Redundancy

Copyright © 2010, Juniper Networks, Inc.
This chapter provides an overview of the TX Matrix Plus router hardware components:
TX Matrix Plus Component Redundancy on page 7
TX Matrix Plus Switch-Fabric Chassis Description on page 8
TX Matrix Plus Midplane Description on page 11
TX Matrix Plus Switch Interface Boards Overview on page 13
TX Matrix Plus Host Subsystem Overview on page 20
TX Matrix Plus Craft Interface Overview on page 30
TX Matrix Plus Craft Interface LED Overview on page 32
TX Matrix Plus Connector Interface Panel Overview on page 36
TX Matrix Plus Power System Overview on page 41
TX Matrix Plus Cooling System Overview on page 45
TX Matrix Plus Cables Overview on page 48
TX Matrix Plus Rear Cable Management System on page 49
TX Matrix Plus Front Cable Manager on page 53
The TX Matrix Plus router is designed so that no single point of failure can cause the
entire system to fail. The following major hardware components are redundant:
Data Switching Planes—In the TX Matrix Plus router, one data switching plane consists
of one or two TXP-F13 SIBs connected internally through the midplane to four TXP-F2S
SIBs. For the TXP-4 configuration, there are a total of five data switching planes in the
routing matrix. One of the five data switching planes acts as a backup
remaining data switching planes. If faults are detected in an active data switching
plane, the plane is taken offline, and the backup
a failed component is replaced and brought online, the data switching plane in which
it resides becomes the new backup
Host subsystem—The host subsystem consists of a Routing Engine functioning together
with a TXP-CB. The TX Matrix Plus router can have one or two host subsystems. To
spare plane is brought online. When
plane.
spare
to the
spare
7