Hello All,
        We have 3 M20's with redundant DC power supply's.
        One month ago we started to have major power supply fan alarm's in B
power supply. The failed power supply was replaced at both routers and after
a week the A power supply started to show the same alarm in both routers.
        The equipment is installed in a controlled enviroment with stable
power(DC) and air conditioner.
        Anybody else had some similar problem with Juniper Power Supply?
Daniel
Manager@jnpr-cta-re0> show chassis hardware 
Hardware inventory:
Item             Version  Part number  Serial number     Description
Chassis                                24819             M20
Backplane        REV 08   710-001517   AW4750           
Power Supply A   REV 06   740-001466   002368            DC
Power Supply B   REV 04   740-001466   000843            DC
Display          REV 04   710-001519   AS2850           
Host 0                                 bb000007346fd001  teknor
Host 1           REV 08   740-003239   1000325882        Teknor
SSB slot 0       REV 01   710-001951   BD2162            Internet Processor
II
SSB slot 1       N/A      N/A          N/A               backup
FPC 0            REV 01   710-001292   AR7808           
  PIC 0          REV 04   750-000610   AL8872            2x OC-3 ATM, SMIR
  PIC 1          REV 08   750-002303   AP0974            4x F/E, 100 BASE-TX
  PIC 3          REV 02   750-002629   AM7940            4x E1, BNC
FPC 1            REV 01   710-001292   AN0137           
  PIC 0          REV 04   750-000610   AR6312            2x OC-3 ATM, SMIR
  PIC 1          REV 07   750-002303   AN2268            4x F/E, 100 BASE-TX
  PIC 3          REV 02   750-002629   AM7921            4x E1, BNC
Manager@jnpr-cta-re0> show chassis alarms 
1 alarms currently active
Alarm time               Class  Description
2002-07-16 14:50:07 BRT  Major  Power Supply A fan failed
This archive was generated by hypermail 2b29 : Mon Aug 05 2002 - 10:42:36 EDT