With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cadpStatLossOfSignal
cadp Statistics Loss Of Signal
1.3.6.1.4.1.9.9.60.1.1.1.1.1
Set to true if the phy is currently experiencing a loss of signal (LOS) from its connected port. Set to false if the phy is not experiencing a loss of signal.
Back to CISCO-ATM-DUAL-PHY-MIB MIB page.
IPHost Network monitor allows you to monitor cadpStatLossOfSignal 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.