With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwrLedTable
cwr Led Table
1.3.6.1.4.1.9.10.52.1.3.1
Entity (Light emitting diode) LED information. For each LED on the entity, an entry will exist in this table, describing the location and current status of that LED.
Back to CISCO-WIRELESS-EXP-MIB MIB page.
IPHost Network monitor allows you to monitor cwrLedTable 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.