With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
portDacLevel
port Dac Level
1.3.6.1.4.1.7505.1.1.15.1.9
The DAC level for the port; this is related to the voltage level on the digital telephony port, and is only used in diagnosis of internal hardware faults.
Back to CALISTA-DPA-MIB MIB page.
IPHost Network monitor allows you to monitor portDacLevel on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.