Juniper power supply monitoring

Juniper power supply monitoring

I'm looking to monitor our Juniper switch power supplys and i'm having trouble getting it to work.  These are the steps i've taken so far:
(1) Mibs copied correctly and mib for p/s identified
(2) Went to Admin --> SNMP Trap Processors --> Load From Mibs 
(3) Created notification rule for to alert on condition when power supply fails

When testing, we're not receiving alerts that a power supply has lost power/failed.  Any ideas?  I know traps are being rec'd b/c we receive other alerts from the switches.  Thanks.

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