Maintaining the MX2020 Power Usage
Purpose
For optimum router performance, verify the AC or DC power usage.
Action
On a regular basis:
Make sure that the total system power consumption and capacity doesn’t exceed the maximum allocated.
Issue the
show chassis powercommand to display the information about the AC or DC power system.
The output displays the AC chassis power for 2100 W capacity.
user@host>show chassis power
PSM 0:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 271.69 W (Lower Zone, 5.25 A at 51.75 V, 12.94% of capacity)
PSM 1:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 247.00 W (Lower Zone, 4.75 A at 52.00 V, 11.76% of capacity)
PSM 2:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 247.00 W (Lower Zone, 4.75 A at 52.00 V, 11.76% of capacity)
PSM 3:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 260.00 W (Lower Zone, 5.00 A at 52.00 V, 12.38% of capacity)
PSM 4:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 234.00 W (Lower Zone, 4.50 A at 52.00 V, 11.14% of capacity)
PSM 5:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 247.00 W (Lower Zone, 4.75 A at 52.00 V, 11.76% of capacity)
PSM 6:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 273.00 W (Lower Zone, 5.25 A at 52.00 V, 13.00% of capacity)
PSM 7:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 221.00 W (Lower Zone, 4.25 A at 52.00 V, 10.52% of capacity)
PSM 8:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 260.00 W (Lower Zone, 5.00 A at 52.00 V, 12.38% of capacity)
PSM 9:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 284.62 W (Upper Zone, 5.50 A at 51.75 V, 13.55% of capacity)
PSM 10:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 286.00 W (Upper Zone, 5.50 A at 52.00 V, 13.62% of capacity)
PSM 11:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 273.00 W (Upper Zone, 5.25 A at 52.00 V, 13.00% of capacity)
PSM 12:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 273.00 W (Upper Zone, 5.25 A at 52.00 V, 13.00% of capacity)
PSM 13:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 286.00 W (Upper Zone, 5.50 A at 52.00 V, 13.62% of capacity)
PSM 14:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 258.75 W (Upper Zone, 5.00 A at 51.75 V, 12.32% of capacity)
PSM 15:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 260.00 W (Upper Zone, 5.00 A at 52.00 V, 12.38% of capacity)
PSM 16:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 273.00 W (Upper Zone, 5.25 A at 52.00 V, 13.00% of capacity)
PSM 17:
State: Online
AC input: OK (INP0 feed expected, INP0 feed connected)
Capacity: 2100 W (maximum 2100 W)
DC output: 271.69 W (Upper Zone, 5.25 A at 51.75 V, 12.94% of capacity)
System:
Upper Zone:
Capacity: 18900 W (maximum 18900 W)
Allocated power: 7360 W (11540 W remaining)
Actual usage: 2466.06 W
Lower Zone:
Capacity: 18900 W (maximum 18900 W)
Allocated power: 7360 W (11540 W remaining)
Actual usage: 2260.69 W
Total system capacity: 37800 W (maximum 37800 W)
Total remaining power: 23080 W
The output displays the DC chassis power for 2100 W capacity.
Note:
The capacity of the DC PSM is limited by the power feeds as indicated by the 60 A/80 A switch on the PDM.
user@host> show chassis power
PSM 0:
State: Empty
Input: Absent
PSM 1:
State: Empty
Input: Absent
PSM 2:
State: Empty
Input: Absent
PSM 3:
State: Empty
Input: Absent
PSM 4:
State: Empty
Input: Absent
PSM 5:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 345.94 W (Lower Zone, 6.75 A at 51.25 V, 16.47% of capacity)
PSM 6:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 333.12 W (Lower Zone, 6.50 A at 51.25 V, 15.86% of capacity)
PSM 7:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 333.12 W (Lower Zone, 6.50 A at 51.25 V, 15.86% of capacity)
PSM 8:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 333.12 W (Lower Zone, 6.50 A at 51.25 V, 15.86% of capacity)
PSM 9:
State: Empty
Input: Absent
PSM 10:
State: Empty
Input: Absent
PSM 11:
State: Empty
Input: Absent
PSM 12:
State: Empty
Input: Absent
PSM 13:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 269.06 W (Upper Zone, 5.25 A at 51.25 V, 12.81% of capacity)
PSM 14:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 281.88 W (Upper Zone, 5.50 A at 51.25 V, 13.42% of capacity)
PSM 15:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 269.06 W (Upper Zone, 5.25 A at 51.25 V, 12.81% of capacity)
PSM 16:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 269.06 W (Upper Zone, 5.25 A at 51.25 V, 12.81% of capacity)
PSM 17:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 281.88 W (Upper Zone, 5.50 A at 51.25 V, 13.42% of capacity)
System:
Upper Zone:
Capacity: 10500 W (maximum 12500 W)
Allocated power: 7760 W (2740 W remaining)
Actual usage: 1370.94 W
Lower Zone:
Capacity: 8400 W (maximum 10000 W)
Allocated power: 7760 W (640 W remaining)
Actual usage: 1345.31 W
Total system capacity: 18900 W (maximum 22500 W)
Total remaining power: 3380 W
The output displays the 240 V China DC chassis power for 2100 W capacity.
user@host> show chassis power
PSM 0:
State: Empty
Input: Absent
PSM 1:
State: Empty
Input: Absent
PSM 2:
State: Empty
Input: Absent
PSM 3:
State: Empty
Input: Absent
PSM 4:
State: Empty
Input: Absent
PSM 5:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 345.94 W (Lower Zone, 6.75 A at 51.25 V, 16.47% of capacity)
PSM 6:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 333.12 W (Lower Zone, 6.50 A at 51.25 V, 15.86% of capacity)
PSM 7:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 333.12 W (Lower Zone, 6.50 A at 51.25 V, 15.86% of capacity)
PSM 8:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 333.12 W (Lower Zone, 6.50 A at 51.25 V, 15.86% of capacity)
PSM 9:
State: Empty
Input: Absent
PSM 10:
State: Empty
Input: Absent
PSM 11:
State: Empty
Input: Absent
PSM 12:
State: Empty
Input: Absent
PSM 13:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 269.06 W (Upper Zone, 5.25 A at 51.25 V, 12.81% of capacity)
PSM 14:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 281.88 W (Upper Zone, 5.50 A at 51.25 V, 13.42% of capacity)
PSM 15:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 269.06 W (Upper Zone, 5.25 A at 51.25 V, 12.81% of capacity)
PSM 16:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 269.06 W (Upper Zone, 5.25 A at 51.25 V, 12.81% of capacity)
PSM 17:
State: Online
DC input: OK (INP1 feed expected, INP1 feed connected)
Capacity: 2100 W (maximum 2500 W)
DC output: 281.88 W (Upper Zone, 5.50 A at 51.25 V, 13.42% of capacity)
System:
Upper Zone:
Capacity: 10500 W (maximum 12500 W)
Allocated power: 7760 W (2740 W remaining)
Actual usage: 1370.94 W
Lower Zone:
Capacity: 8400 W (maximum 10000 W)
Allocated power: 7760 W (640 W remaining)
Actual usage: 1345.31 W
Total system capacity: 18900 W (maximum 22500 W)
Total remaining power: 3380 W
The output displays the universal (HVAC/HVDC) chassis power for 3400 W capacity.
user@host> show chassis power PSM 0: State: Online AC input: OK (Both feed expected, Both feed connected) Capacity: 3400 W (maximum 3400 W) DC output: 1124.55 W (Lower Zone, 21.42 A at 52.50 V, 33.08% of capacity) PSM 1: State: Online AC input: OK (Both feed expected, Both feed connected) Capacity: 3400 W (maximum 3400 W) DC output: 1119.20 W (Lower Zone, 21.42 A at 52.25 V, 32.92% of capacity) PSM 2: State: Online AC input: OK (Both feed expected, Both feed connected) Capacity: 3400 W (maximum 3400 W) DC output: 1172.49 W (Lower Zone, 22.44 A at 52.25 V, 34.49% of capacity) PSM 3: State: Online AC input: OK (Both feed expected, Both feed connected) Capacity: 3400 W (maximum 3400 W) DC output: 1101.43 W (Lower Zone, 21.08 A at 52.25 V, 32.39% of capacity) PSM 4: State: Online AC input: OK (Both feed expected, Both feed connected) Capacity: 3400 W (maximum 3400 W) DC output: 1136.96 W (Lower Zone, 21.76 A at 52.25 V, 33.44% of capacity) PSM 5: State: Online AC input: OK (Both feed expected, Both feed connected) Capacity: 3400 W (maximum 3400 W) DC output: 1065.90 W (Lower Zone, 20.40 A at 52.25 V, 31.35% of capacity) ...
For further description of the output from the commands, see the Junos OS System Basics and Services Command Reference.