With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnsT4ClkSrcAlarm
cns T4 Clk Src Alarm
1.3.6.1.4.1.9.9.761.1.1.5.1.16
This object indicates whether or not an alarm event is currently being reported on the T4 input clock source.
Back to CISCO-NETSYNC-MIB MIB page.
IPHost Network monitor allows you to monitor cnsT4ClkSrcAlarm on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.