Verify environmental parameters

Updated: September 19, 2026

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Use this procedure to verify that the environmental parameters of NCS 1004 such as temperature, power, voltage, and fan speed are within acceptable ranges to ensure proper system operation.

The show environment command displays the environmental parameters of NCS 1004. Monitoring these parameters helps ensure the system operates within safe limits and prevents hardware damage.

Note

On the Cisco NCS 1004, temperature and voltage monitoring is not supported for an SFP module installed in the route processor port. As a result, the show environment temperatures and show environment voltages commands display - for the SFP-Port-Module Temp and SFP-Port-3.3 V sensors at location 0/RP0-SFP. This output is expected and does not indicate a hardware or environmental sensor failure.

Procedure

Enter the admin command to access System Admin EXEC mode.
Example:
```
RP/0/RP0/CPU0:ios# admin
```

Use the show environment command with the appropriate options to view the environmental parameters of NCS 1004.

These examples show sample output for different environmental parameters:

Example:

Fan speed example:

sysadmin-vm:0_RP0# show environment fan
Wed Mar  4  05:36:33.678 UTC+00:00
=============================================
                        Fan speed (rpm)
Location     FRU Type           FAN_0   FAN_1
---------------------------------------------
0/FT0        NCS1K4-FAN          7020    6930
0/FT1        NCS1K4-FAN          6780    6690
0/FT2        NCS1K4-FAN          6810    6720

0/PM0        NCS1K4-AC-PSU      25376   24352

0/PM1        NCS1K4-AC-PSU      11200   11232

Temperature example:

sysadmin-vm:0_RP0# show environment temperatures location 0/RP0
Wed Mar  4  05:44:51.221 UTC+00:00
================================================================================
Location  TEMPERATURE                 Value   Crit Major Minor Minor Major  Crit
          Sensor                    (deg C)   (Lo) (Lo)  (Lo)  (Hi)  (Hi)   (Hi)
--------------------------------------------------------------------------------
0/RP0
          TEMP_LOCAL                     32    -10    -5     0    55    65    70
          TEMP_REMOTE1                   32    -10    -5     0    55    65    70
          TEMP_CPU_DIE                   31    -10    -5     0    75    80    90

Power example:

sysadmin-vm:0_RP0# show environment power
Wed Mar  4  05:45:35.640 UTC+00:00
================================================================================
CHASSIS LEVEL POWER INFO: 0
================================================================================
   Total output power capacity (N + 1)             :    2000W +       0W
   Total output power required                     :     910W
   Total power input                               :     456W
   Total power output                              :     407W

Power Group 0:
================================================================================
   Power       Supply     ------Input----   ------Output---      Status
   Module      Type        Volts     Amps    Volts     Amps
================================================================================
   0/PM0       2kW-AC        0.0      0.0      0.0      0.0    FAILED or NO PWR

Total of Power Group 0:          0W/  0.0A         0W/  0.0A

Power Group 1:
================================================================================
   Power       Supply     ------Input----   ------Output---      Status
   Module      Type        Volts     Amps    Volts     Amps
================================================================================
   0/PM1       2kW-AC      227.8      2.0     12.0     33.9    OK

Total of Power Group 1:        456W/  2.0A       407W/ 33.9A

================================================================================
   Location     Card Type            Power       Power       Status
                                     Allocated   Used
                                     Watts       Watts
================================================================================
   0/0          NCS1K4-LC-FILLER         0           -       RESERVED
   0/1          NCS1K4-1.2T-K9         260         101       ON
   0/2          NCS1K4-1.2TL-K9        260         168       ON
   0/3          NCS1K4-LC-FILLER         0           -       RESERVED
   0/RP0        NCS1K4-CNTLR-K9         55           -       ON
   0/FT0        NCS1K4-FAN             100           -       ON
   0/FT1        NCS1K4-FAN             100           -       ON
   0/FT2        NCS1K4-FAN             100           -       ON
   0/SC0        NCS1004                 35           -       ON

sysadmin-vm:0_RP0# show environment power
Thu May  7  11:55:13.388 UTC+00:00
================================================================================
CHASSIS LEVEL POWER INFO: 0
================================================================================
   Total output power capacity (N + 1)             :    2000W +       0W
   Total output power required                     :    1670W
   Total power input                               :    1007W
   Total power output                              :     956W

Power Group 0:
================================================================================
   Power       Supply     ------Input----   ------Output---      Status
   Module      Type        Volts     Amps    Volts     Amps
================================================================================
   0/PM0       2kW-DC       50.3     20.0     12.1     79.0    OK

Total of Power Group 0:       1006W/ 20.0A       956W/ 79.0A

Power Group 1:
================================================================================
   Power       Supply     ------Input----   ------Output---      Status
   Module      Type        Volts     Amps    Volts     Amps
================================================================================
   0/PM1       2kW-DC        1.3      0.6      0.0      0.0    FAILED or NO PWR

Total of Power Group 1:          1W/  0.6A         0W/  0.0A

================================================================================
   Location     Card Type            Power       Power       Status
                                     Allocated   Used
                                     Watts       Watts
================================================================================
   0/0          NCS1K4-1.2T-K9         260         194       ON
   0/1          NCS1K4-OTN-XP          340         182       ON
   0/2          NCS1K4-OTN-XP          340         153       ON
   0/3          NCS1K4-OTN-XP          340         160       ON
   0/RP0        NCS1K4-CNTLR-K9         55           -       ON
   0/FT0        NCS1K4-FAN             100           -       ON
   0/FT1        NCS1K4-FAN             100           -       ON
   0/FT2        NCS1K4-FAN             100           -       ON
   0/SC0        NCS1004                 35           -       ON

Voltage example:

sysadmin-vm:0_RP0# show environment voltages location 0/RP0
Wed Mar  4  05:47:24.668 UTC+00:00
================================================================================
Location  VOLTAGE                     Value   Crit Minor Minor  Crit
          Sensor                      (mV)    (Lo) (Lo)  (Hi)   (Hi)
--------------------------------------------------------------------------------
0/RP0
          ADM1266_VH1_12V             12028  10800 11040 12960 13200
          ADM1266_VH3_3V3              3306   3036  3135  3465  3564
          ADM1266_VH4_2V5              2492   2300  2375  2625  2700
          ADM1266_VP1_1V8              1801   1656  1710  1890  1944
          ADM1266_VP2_1V2              1201   1104  1140  1260  1296
          ADM1266_3V3_STAND_BY         3293   3036  3135  3465  3564
          ADM1266_VP4_3V3_CPU          3301   3036  3135  3465  3564
          ADM1266_VP5_2V5_CPU          2494   2300  2375  2625  2700
          ADM1266_VP6_1V8_CPU          1797   1656  1710  1890  1944
          ADM1266_VP7_1V24_VCCREF      1236   1140  1178  1302  1339
          ADM1266_VP8_1V05_CPU         1045    966   997  1102  1134
          ADM1266_VP9_1V2_DDR_VDDQ     1196   1104  1140  1260  1296
          ADM1266_VP10_1V0_VCCRAM      1074    500   650  1300  1400
          ADM1266_VP11_VNN              882    400   550  1300  1400
          ADM1266_VP12_VCCP            1068    300   450  1300  1400
          ADM1266_VP13_0V6_VTT          599    552   570   630   648
          ADM1293_DB_5V0               5007   4600  4750  5250  5400
          ADM1293_DB_3V3               3305   3036  3135  3465  3564
          ADM1293_DB_5V0_USB_0         5007   4000  4500  5500  6000
          ADM1293_DB_5V0_USB_1         5017   4000  4500  5500  6000
          ADM1293_MB_5V0_PMOD0         5062   4600  4750  5250  5400
          ADM1293_MB_5V0_PMOD1         5032   4600  4750  5250  5400
          ADM1293_MB_2V5_PLL           2483   2300  2375  2625  2700

Verify that all environmental parameters are within acceptable ranges. If any parameter is outside the normal range, investigate and resolve the issue before proceeding.

What to do next

Environment parameter anomalies are logged in the syslog. If an environment parameter displayed in the show environment command output is not as expected, check the syslog using the show logging command. The syslog provides details on any logged problems.

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