With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
chassisPs1Status
chassis Ps1 Status
1.3.6.1.4.1.9.5.1.2.4
not ok, the value of chassisPs1TestResult gives more detailed information about the power supply's failure condition(s).
Back to CISCO-STACK-MIB MIB page.
IPHost Network monitor allows you to monitor chassisPs1Status on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.