For DC-powered routers with two-input 160-A DC power supplies, three-input 240-A
DC power supplies or four-input 240-A DC power supplies, the output is similar to
the following:
PEM 0 status:
State Online
Temperature 24 degrees C / 75 degrees F
DC Input: OK
DC Output Voltage Current Power Load
FPC 0 0 0 0 0
FPC 1 54558 981 53 7
FPC 2 54558 2800 152 20
FPC 3 54700 2225 121 16
FPC 4 54375 2387 129 17
FPC 5 54308 3543 192 25
FPC 6 54558 1287 70 9
FPC 7 54616 2650 144 19
SCG/CB/SIB 54150 181 9 0
PEM 1 status:
State Online
Temperature 23 degrees C / 73 degrees F
DC Input: OK
DC Output Voltage Current Power Load
FPC 0 0 0 0 0
FPC 1 50691 0 0 0
FPC 2 50766 0 0 0
FPC 3 50725 0 0 0
FPC 4 50725 0 0 0
FPC 5 50766 0 0 0
FPC 6 50808 0 0 0
FPC 7 50625 0 0 0
SCG/CB/SIB 50300 0 0 0
For two-input 160-A DC power supplies, three-input 240-A DC power supplies in
2–INPUT mode, and four-input 240-A DC power supplies, the current sharing between
DC power supplies relies on equal voltages at the input terminals of the power
supplies. However, if the voltages do not match, the router operates normally as
long as the DC input voltages are within the operating range provided in “T640 DC
Power System Electrical Specifications” on page 125.
• For DC-powered routers with six-input DC power supplies, the output is similar to
the following:
user@host> show chassis environment pem
PEM 0 status:
State Online
Temperature 34 degrees C / 93 degrees F
DC Input: OK
Voltage(V) Current(A) Power(W) Load(%)
INPUT 0 53.500 7.437 397 52
INPUT 1 53.750 10.812 581 77
INPUT 2 53.125 9.562 507 67
INPUT 3 53.625 11.125 596 79
INPUT 4 53.750 9.875 530 70
INPUT 5 53.250 9.500 505 67
DC Output Voltage(V) Current(A) Power(W) Load(%)
FPC 0 0.000 0.000 0 0
FPC 1 0.000 0.000 0 0
Copyright © 2017, Juniper Networks, Inc.458
T640 Core Router Hardware Guide
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