When not active, some submenu keys have no arrow to indicate a sub menu, and the circular indicator has a plain background. The circular indicator with a red background and the sub menu arrow appear only when these submenu keys are active.
Press this submenu key to display the Alarm Ins submenu. Select one of the five alarms for testing – DS3 AIS Alarm, DS3 RAI Alarm, DS3 Idle Alarm, DS1 AIS Alarm, and DS1 RAI Alarm. The submenu key label for the selected alarm displays the circle indicator in red to show that the key function is active.
Alarm Insert Off/On
Press this submenu key to toggle the selected alarm signal OFF and ON.
Error Insert Off/On
Press this submenu key to toggle the selected error insert OFF and ON.
