Related
Documentation
Checklist for Monitoring Power Supplies on page 273•
TX Matrix Plus Router Power Supplies
The TX Matrix Plus router supports DC power only. The router has two load-sharing DC
power supplies located at the lower rear of the chassis in slots PEM0 and PEM1 (left to
right). The power supplies connect to the midplane, which distributes the different output
voltages produced by the power supplies to the TX Matrix Plus components, depending
on their voltage requirements. Figure 140 on page 291 shows the TX Matrix Plus router
power supply.
There are no passive fuses in the TX Matrix Plus router that must be replaced.
The TX Matrix Plus router supports the seven-input 420-A power supply.
Figure 140: TX Matrix Plus Router Power Supply
Related
Documentation
Checklist for Monitoring Power Supplies on page 273•
Checking the Power Supply Cables
Purpose To check the power supply cables and ensure that power is distributed to the router
components.
Action To check the power supply cables:
1. Verify that the power cable or power cord from the power source to the router is not
damaged. If the insulation is cracked or broken, immediately replace the cord or cable.
2. Make sure that the power and ground cables on each DC power supply are arranged
so that they do not obstruct access to the other power supply or to the Routing Engine.
3. Periodically inspect the site to ensure that the cables connected to the power supply
are securely in place and are properly insulated.
291Copyright © 2012, Juniper Networks, Inc.
Chapter 10: Monitoring Power Supplies
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