4 7 3 ish unknown IS1 Drives conditionals Normal Restricted IT1 Toggled by system name reference IT2 Toggled by user name reference IX:AUTO:0001 Conditional listens to IS1 IX:AUTO:0002 Listen to conditional, write turnouts IX:AUTO:0001C1 User 1C1 IX:AUTO:0002C1 Via System Name IX:AUTO:0002C2 Via User Name