The Error/Alarm menu includes all the errors and alarms that can be added to the transmission path. Press the Error/Alarm main menu key to access the menu.
Frame Bit Errors: Inserts errors in the framing bits. Select by pressing Frame Bit Error. Press Frame Bit Error again and then press Burst. Enter a burst value between 1 and 1000 using the keypad.
Bit Errors: Inserts errors in the BER pattern. Select by pressing the Bit Error submenu key. Press Bit Error again and then Burst. Enter a burst value between 1 and 1000 using the keypad.
BER (Bit Error Rate): Errors can be added to the transmission path by pressing the BER submenu key twice. Valid BER include 1E–2, 1E–3, 1E–4, 1E–5, 1E–6, and 1E–7. If a BER value of 1E–3 is selected, then 1 error for every 1000 bits will be introduced. The Error On/Off submenu key is used to turn the errors on.
AIS (Alarm Indication Signal) Alarm: When the AIS is turned on, the data is replaced with an unframed signal of all ones.
RAI (Remote Alarm Indicator) Alarm: If the terminal loses its incoming signal, then an RAI signal is transmitted in the outgoing direction. RAI is also called Yellow Alarm.
