Table 67: T Series Routers Power Supply Characteristics (continued)
TX Matrix
PlusTX MatrixT1600T640T320
Power
Supply
Characteristic
XXXXXTurn off
circuit
breaker
before
removing
power
supply
Power supplies in the router must be of the same type: either two AC or two DC power
supplies. You cannot mix power supply types.
Related
Documentation
Checklist for Monitoring Power Supplies on page 273•
M5/M10 Router Power Supplies
Two load-sharing, isolated power supplies are located at the bottom rear of the M5 and
M10 router chassis. The routers use either AC or DC power. Figure 126 on page 277 shows
the M5 and M10 router power supplies and where they are installed in the chassis.
Figure 126: M5 and M10 Router Power Supplies
M5 and M10 router rear
AC power supply DC power supply
g004150
Power supply A
Power supply B
When the power supplies are installed and operational, they automatically share the
electrical load. If a power supply stops functioning for any reason, the remaining power
supply instantly begins providing all the power the router needs for normal functioning
and can provide full power indefinitely.
NOTE: Mixing AC and DC power supplies is not supported. The two power
supplies must be either both AC or both DC.
When two power supplies are installed, at least one Routing Engine and one
FPC must also be installed for both power supplies to power on. In the
absence of this minimum load, only one power supply starts. (The router
powers on and operates correctly with one power supply, but without the
redundancy benefit of having a second power supply installed.)
277Copyright © 2012, Juniper Networks, Inc.
Chapter 10: Monitoring Power Supplies
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