With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
prtConsoleNumberOfDisplayChars
Printer Console Number Of Display Chars
1.3.6.1.2.1.43.5.1.1.12
The number of characters per line displayed on the physical display. This value is 0 if there are no lines on the physical display or if there is no physical display
Back to Printer-MIB MIB page.
IPHost Network monitor allows you to monitor prtConsoleNumberOfDisplayChars 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.