With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dsx3LineLength
dsx3 Line Length
1.3.6.1.2.1.10.30.5.1.13
The length of the ds3 line in meters. This object provides information for line build out circuitry if it exists and can use this object to adjust the line build out.
Back to DS3-MIB MIB page.
IPHost Network monitor allows you to monitor dsx3LineLength on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.