I/O-2 A <html><strong>JMRI 3.7.1 or later is required to use this definition.</strong></html> <html><h1>I/O Port 2 Lines #1 - #4</h1></html> Tower Controller Mark II Input/Output Port Configuration settings. All numbers are entered as their actual event numbers. For example LS9 is entered as event number 9. Paired inputs or outputs respond only to the first line's event numbers. The second line's event numbers are ignored. IP9 Type IP10 Type IP11 Type IP12 Type