Replacing Tx Matrix Plus Host Subsystem Components; Taking The Host Subsystem Offline; Figure 121: Installing A Replacement Craft Interface - Juniper TX MATRIX PLUS Hardware Manual

TX Matrix Plus Router Hardware Guide
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Replacing TX Matrix Plus Host Subsystem Components

Taking the Host Subsystem Offline

354
Reinstall a spacer and nut onto each of the four corner threaded studs.
3.
Tighten the nuts , using a 5/16 inch nut driver.
4.
NOTE: After you install the craft interface in an operating TX Matrix Plus
router, allow several minutes for the LEDs on the craft interface to reflect
the current state of the TX Matrix Plus router.

Figure 121: Installing a Replacement Craft Interface

TX Matrix Plus Craft Interface Overview on page 30
TX Matrix Plus Preventing Electrostatic Discharge Damage on page 392
Taking the Host Subsystem Offline on page 354
Replacing a TXP-CB on page 357
Replacing a Routing Engine on page 360
Before you replace a TXP-CB or a Routing Engine, you must take the host subsystem
offline. The host subsystem is taken offline and brought online as a unit. Before you take
a host subsystem offline, but sure that you are aware of how this will affect the TX Matrix
Plus router and the routing matrix.
To take a host subsystem offline:
Determine whether the host subsystem is functioning as the master or as the backup,
1.
using one of the two following methods:
If the green MASTER
subsystem is functioning as the master.
LED on the Routing Engine is lit, the corresponding host
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