Understanding Power Supplies - Juniper M Series Monitoring And Troubleshooting Manual

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Understanding Power Supplies

Power Supplies Overview
Copyright © 2012, Juniper Networks, Inc.
Table 65: Checklist for Monitoring Power Supplies (continued)
Monitor Power Supply Tasks
"Replacing the Power Supplies" on
page 316
Power Supplies Overview on page 275
Power Supplies Overview on page 275
M5/M10 Router Power Supplies on page 277
M7i Router Power Supplies on page 278
M10i Router Power Supplies on page 278
M20 Router Power Supplies on page 279
M40 Router Power Supplies on page 280
M40e Router Power Supplies on page 281
M120 Router Power Supplies on page 283
M160 Router Power Supplies on page 284
M320 Router Power Supplies on page 285
T320 Router Power Supplies on page 287
T640 Router Power Supplies on page 287
T1600 Router Power Supplies on page 288
TX Matrix Router Power Supplies on page 289
TX Matrix Plus Router Power Supplies on page 291
Inspect the power supplies to ensure that they distribute power to the other router
components according to their voltage requirements.
The power supplies are internally connected to the midplane, which delivers the power
input from the circuit breaker box and distributes the different output voltages produced
by the power supplies to the router's components, depending on their voltage
requirements.
Chapter 10: Monitoring Power Supplies
Command or Action
(M5, M10, M20, and M40 routers) Turn
off the power to the individual power
supply before removing it from the
chassis.
(M40e, M160, T320, T640, T1600, TX
Matrix, and TX Matrix Plus routers
routers) Switch the corresponding
circuit breaker off before removing the
power supply. Follow the procedure in
the appropriate router hardware guide.
275