Technical Documentation

show chassis power

Syntax

show chassis power

Release Information

Command introduced in Junos OS Release 10.0

Description

(MX Series Ethernet Services Routers only) Display power limits and usage information for the AC or DC Power Entry Modules (PEMs).

Options

This command has no options.

Required Privilege Level

view

Related Topics

List of Sample Output

show chassis power (MX960 Router with DC PEM)
show chassis power (MX960 Router with AC PEM)
show chassis power (MX480 Router with AC PEM)
show chassis power (MX240 Router with DC PEM)

Output Fields

Table 1 lists the output fields for the show chassis power command. Output fields are listed in the approximate order in which they appear.

Table 1: show chassis power Output Fields

Field Name

Field Description

PEM number

AC or DC PEM number on the chassis. The following output fields are displayed for the PEM:

  • State—State of the PEM:
    • Online—PEM is present in the slot and online.
    • Empty—PEM is not present in the slot.
    • Present—PEM is present in the slot, but not online.
  • AC/DC Input—OK or Check—State of the AC or DC input power feed with the number of active and expected feeds (one or two).

    For a DC input power feed, this output field also displays the reference voltage input with maximum input voltage displayed in mV (in parentheses) for the AC or DC PEM.

  • Capacity—Actual power input capacity with maximum capacity displayed (in parentheses) in watts.

    Note: The maximum capacity for AC and DC PEMs is:

    • MX960 AC PEM—4100 W if two feeds are connected. 1700 W if one feed is connected.
    • MX960 DC PEM—4100 W if two feeds are connected. 1700 W if one feed is connected.
    • MX480 AC PEM—2520 W if it is high-line. 1450 W if it is low-line.
    • MX480 DC PEM—2400 W if the DIP switch is off. 2600 W if the DIP switch is on.
    • MX240 AC PEM—2520 W if it is high-line. 1450 W if it is low-line.
    • MX240 DC PEM—2400 W if the DIP switch is off. 2600 W if the DIP switch is on.
  • DC Output—DC power output in Watts for the specified zone, at the specified amps and voltage (A @ V), and load and percentage utilization of the maximum capacity) for the zone.

System

Overall power statistics for the system zone-wise:

  • Zone number:
    • Capacity—Maximum power capacity applicable for the zone, in watts.
    • Allocated power—Actual capacity allocated for the zone, in watts, with remaining power displayed in parentheses.
    • Actual usage—Actual power usage for the zone, in watts.
  • Total system capacity—Cumulative power capacity of all the zones, in watts.
  • Total remaining capacity—Difference between the Total system capacity and cumulative Allocated power of all the zones, in watts.

Sample Output

show chassis power (MX960 Router with DC PEM)

user@host> show chassis power
PEM 0:
  State:     Online
  DC input:  OK (2 feed expected, 2 feed connected)
  DC input:  48.0 V input (57000 mV)
  Capacity:  4100 W (maximum 4100 W)
  DC output: 513 W (zone 0, 9 A at 57 V, 12% of capacity)

PEM 1:
  State:     Online
  DC input:  OK (2 feed expected, 2 feed connected)
  DC input:  48.0 V input (57000 mV)
  Capacity:  4100 W (maximum 4100 W)
  DC output: 228 W (zone 1, 4 A at 57 V, 5% of capacity)

PEM 2:
  State:     Online
  DC input:  OK (2 feed expected, 2 feed connected)
  DC input:  48.0 V input (57000 mV)
  Capacity:  4100 W (maximum 4100 W)
  DC output: 513 W (zone 0, 9 A at 57 V, 12% of capacity)

PEM 3:
  State:     Online
  DC input:  OK (2 feed expected, 2 feed connected)
  DC input:  48.0 V input (57000 mV)
  Capacity:  4100 W (maximum 4100 W)
  DC output: 342 W (zone 1, 6 A at 57 V, 8% of capacity)

System:
  Zone 0:
      Capacity:          4100 W (maximum 4100 W)
      Allocated power:   1680 W (2420 W remaining)
      Actual usage:      1026 W
  Zone 1:
      Capacity:          4100 W (maximum 4100 W)
      Allocated power:   1263 W (2837 W remaining)
      Actual usage:      570 W
  Total system capacity: 8200 W (maximum 8200 W)
  Total remaining power: 5257 W

show chassis power (MX960 Router with AC PEM)

user@host> show chassis power
PEM 0:
  State:     Online
  AC input:  OK (2 feed expected, 2 feed connected)
  Capacity:  4100 W (maximum 4100 W)
  DC output: 0 W (zone 0, 0 A at 56 V, 0% of capacity)

PEM 1:
  State:     Present
  AC input:  Check (2 feed expected, 1 feed connected)
  Capacity:  1700 W (maximum 4100 W)

PEM 2:
  State:     Empty
  Input:     Absent

PEM 3:
  State:     Online
  AC input:  OK (1 feed expected, 1 feed connected)
  Capacity:  1700 W (maximum 1700 W)

System:
  Zone 0:
      Capacity:          4100 W (maximum 4100 W)
      Allocated power:   540 W (3560 W remaining)
      Actual usage:      0 W
  Zone 1:
      Capacity:          0 W (maximum 0 W)
      Allocated power:   0 W (0 W remaining)
      Actual usage:      0 W
  Total system capacity: 4100 W (maximum 4100 W)
  Total remaining power: 3560 W

show chassis power (MX480 Router with AC PEM)

user@host> show chassis power
PEM 0:
  State:     Online
  AC input:  OK (1 feed expected, 1 feed connected)
  Capacity:  2520 W (maximum 2520 W)
  DC output: 472 W (zone 0, 8 A at 59 V, 18% of capacity)

PEM 1:
  State:     Online
  AC input:  OK (1 feed expected, 1 feed connected)
  Capacity:  2520 W (maximum 2520 W)
  DC output: 472 W (zone 0, 8 A at 59 V, 18% of capacity)

PEM 2:
  State:     Online
  AC input:  OK (1 feed expected, 1 feed connected)
  Capacity:  2520 W (maximum 2520 W)
  DC output: 118 W (zone 0, 2 A at 59 V, 4% of capacity)

PEM 3:
  State:     Empty
  Input:     Absent

System:
  Maximum capacity:   5040 W
  Allocated capacity: 1675 W (33% of maximum)
  Remaining capacity: 3365 W
  Actual usage:       1062 W

show chassis power (MX240 Router with DC PEM)

user@host> show chassis power
PEM 0:
  State:     Online
  DC input:  OK (1 feed expected, 1 feed connected)
  DC input:  48.0 V input (53500 mV)
  Capacity:  2400 W (maximum 2400 W)
  DC output: 318 W (zone 0, 6 A at 53 V, 13% of capacity)

PEM 1:
  State:     Online
  DC input:  OK (1 feed expected, 1 feed connected)
  DC input:  48.0 V input (54000 mV)
  Capacity:  2400 W (maximum 2400 W)
  DC output: 0 W (zone 0, 0 A at 54 V, 0% of capacity)

PEM 2:
  State:     Online
  DC input:  OK (1 feed expected, 1 feed connected)
  DC input:  48.0 V input (52500 mV)
  Capacity:  2400 W (maximum 2400 W)
  DC output: 312 W (zone 0, 6 A at 52 V, 13% of capacity)

PEM 3:
  State:     Online
  DC input:  OK (1 feed expected, 1 feed connected)
  DC input:  48.0 V input (55000 mV)
  Capacity:  2400 W (maximum 2400 W)
  DC output: 0 W (zone 0, 0 A at 55 V, 0% of capacity)

System:
  Maximum capacity:   2400 W
  Allocated capacity: 1270 W (52% of maximum)
  Remaining capacity: 1130 W
  Actual usage:       630 W

Published: 2010-07-13

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